Silvia Varotto

Silvia Varotto has been a member of the laboratory from Aug 01, 2021 to Dec 15, 2022

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Silvia Varotto.

Journal articles

Accepted for publication

Ortelli N., de Lapparent M., Varotto S., Bierlaire M. (to appear). An integrated ordered logit and latent variable model for accident injury severity and risk-taking behavior. Transportation Research Part A: Policy and Practice (accepted for publication on Nov 15, 2024)

This study presents a flexible model for risk-taking behavior and accident injury severity. It is specifically designed to evaluate the impact of Via Sicura, a Swiss road safety program, on the severity of accident outcomes. Our proposed model treats the risk-taking behavior of each driver as a latent variable that depends on a number of socioeconomic and contextual factors, and whose manifestation can be measured by means of behavioral indicators. The aggregated risk, a central feature of our framework, represents the combined latent risk-taking behaviors among all drivers within an accident and is successfully identified as explanatory of the severity of injuries sustained by all individuals involved. Our findings reveal that Via Sicura’s repressive measures successfully deter risk-taking behavior among drivers, preventing an estimated 63 fatal, 876 major and 2,303 minor injuries over a ten-year period.
```
@Article{OrteDelaVaroBier24,
  author = {Nicola Ortelli and Matthieu {de Lapparent} and Silvia Varotto and Michel Bierlaire},
  title = {An integrated ordered logit and latent variable model for accident injury severity and risk-taking behavior},
  journal = {Transportation Research Part A: Policy and Practice},
  year = {to appear},
  DOI = {10.1016/j.tra.2024.104330},
  note = {Accepted on Nov 15, 2024}}}
```

2022

Varotto S., Jansen R. (2022). Caught in the blind spot of a truck: A choice model on driver glance behavior towards cyclists at intersections. Accident Analysis and Prevention 174 :106759

Vulnerable road users (VRUs) constitute an increasing proportion of the annual road fatalities across Europe. One of the crash types involved in these fatalities are blind spot crashes between trucks and bicyclists. Despite the presence of mandatory blind spot mirrors, truck drivers are often reported to have overlooked the presence of a bicyclist. This raises the question if and when truck drivers check their blind spot mirrors for the presence of bicyclists, and which factors contribute to such glance behavior. The current study presents the results of an analysis of naturalistic glance behavior by 39 truck drivers in 1,903 right-turning maneuvers at urban intersections, where in each maneuver there was a chance of crossing the path of a bicyclist. The descriptive analysis revealed that most often truck drivers did not cast a glance upon their blind spot mirrors as recommended by the examination guidelines. Furthermore, a choice model was developed with the main factors that have an impact on glance behavior. Drivers were more likely to glance with a priority regulation that allowed conflicts, with lower speed limits, with zebra crossings, without cyclist facilities, without a lead vehicle making the same maneuver, in presence of VRUs, without adverse sight conditions, in lower age groups, without certain non-driving related activities, when driving a truck with more direct vision on VRUs, and without a camera providing a view on the blind spot, and with less time between a standstill and starting the maneuver. Three factors did not significantly improve the choice model and were therefore left out, despite showing significant effects in bivariate tests: intersection layout (e.g., three vs. four legs), presence of advanced stopping lanes, and visual obstruction. Implications of the choice model are discussed for driver education (in terms of timely glances, reducing inattention, and hazard anticipation) and vehicle design (in terms of direct vision).
```
@Article{JansVaro2022,
  author = {Silvia Varotto and Reinier Jansen},
  title = {Caught in the blind spot of a truck: A choice model on driver glance behavior towards cyclists at intersections},
  journal = {Accident Analysis and Prevention},
  year = {2022},
  volume = {174},
  pages = {106759},
  DOI = {10.1016/j.aap.2022.106759},
  note = {Accepted on Jun 15, 2022}}}
```
Varotto S., Mons C., Hogema J., Christoph M., Van Nes N., Martens M. (2022). Do adaptive cruise control and lane keeping systems make the longitudinal vehicle control safer?. Transportation Research Part C: Emerging Technologies 141 :103756

Advanced driver assistance systems such as adaptive cruise control (ACC) and lane keeping system (LKS) potentially contribute to reducing crash rates and traffic congestion. On-road studies based on early ACC systems operational at medium–high speeds only have shown that the system reduces the proportion of short time gaps when activated. Despite the effects on driver behaviour, most mathematical models assessing the impact of ACC and LKS systems on crash rates and traffic congestion are not based on empirical findings. This study examines the factors that influence changes in the longitudinal vehicle control when driving with ACC and LKS. The data were collected in a naturalistic driving experiment with full-range ACC and LKS and two different vehicle brands (BMW and Tesla) in the Netherlands. To capture changes that are relevant for traffic safety, speeding and a time gap shorter than one second were investigated. The factors influencing speeding and short time gaps were analysed using statistical tests and logistic regression models with random effects, that allow to control for the impact of different explanatory variables and correlations between repeated 10-s intervals over time. The findings revealed that, overall, drivers were less likely to speed and they were also less likely to have a time gap shorter than one second in the experimental condition with the ACC and the LKS than in the baseline condition in manual driving. Drivers were likely to speed in the following 10-s interval when the current speed was close to the speed limit, and/or when the next speed limit was lower than the current speed limit, and/or when the acceleration was high. Drivers were likely to have a short time gap in the following 10-s interval when approaching a slower leader, and/or when the current time gap was short and/or when the acceleration was high. Controlled for these main factors, drivers were less likely to speed and to have a short time gap when the ACC and the LKS were active. However, drivers were more likely to speed when overruling the ACC by pressing the gas pedal. When the systems were active, one vehicle brand showed a smaller probability of a short time gap than the other brand, suggesting differences in ACC system settings between brands. In addition, the speeding probability increased while the probability of a short time gap decreased over time during the trip after the activation of the systems. Although further studies including a larger sample of participants and a wider range of traffic situations are needed, the results are useful to the design of automated vehicles that prevent speeding and short time gaps, and to the implementation of traffic simulations that evaluate the impact of ACC and LKS on crash rates and traffic congestion according to realistic on-road data.
```
@Article{VaroMonsHogeChriVanNMart22,
  author = {Silvia Varotto and Celina Mons and Jeroen Hogema and Michiel Christoph and Nicole {Van Nes} and Marieke Martens},
  title = {Do adaptive cruise control and lane keeping systems make the longitudinal vehicle control safer?},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2022},
  volume = {141},
  pages = {103756},
  DOI = {10.1016/j.trc.2022.103756},
  note = {Accepted on Jun 04, 2022}}}
```

2017

Varotto S., Glerum A., Stathopoulos A., Bierlaire M., Longo G. (2017). Mitigating the impact of errors in travel time reporting on mode choice modelling. Journal of Transport Geography 62 :236-246


@Article{VaroGlerStatBierLong17,
  author = {Silvia Varotto and Aur\'elie Glerum and Amanda Stathopoulos and Michel Bierlaire and Giovanni Longo},
  title = {Mitigating the impact of errors in travel time reporting on mode choice modelling},
  journal = {Journal of Transport Geography},
  year = {2017},
  volume = {62},
  pages = {236-246},
  DOI = {10.1016/j.jtrangeo.2017.05.016},
  note = {Accepted on May 31, 2017}}}

Book chapters

2024

Varotto S., Krueger R., Bierlaire M. (2024) Modelling travel behaviour: a choice modelling perspective . In D. Potoglou and J. Spinney (ed) Handbook of Travel Behavior, Elgar , Cheltenham [ISBN 978 1 83910 573 9]


@InProceedings{VarKruBie24,
  author = {Silvia Varotto and Rico Krueger and Michel Bierlaire},
  title = {Modelling travel behaviour: a choice modelling perspective },
  year = {2024},
  booktile = {Handbook of Travel Behavior},
  editor = {D. Potoglou and J. Spinney},
  publisher = {Elgar},
  address = {Cheltenham},
  pages = {118-139}}}

Technical reports

2024

Ortelli N., de Lapparent M., Varotto S., Bierlaire M. (2024). An integrated ordered logit and latent variable model for accident injury severity and risk-taking behavior. Report TRANSP-OR 240101


@TechReport{OrteLappVaroBier2024,
  author = {Nicola Ortelli and Matthieu {de Lapparent} and Silvia Varotto and Michel Bierlaire},
  title = {An integrated ordered logit and latent variable model for accident injury severity and risk-taking behavior},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2024},
  type = {Technical Report},
  number = {TRANSP-OR 240101},
  address = {Lausanne, Switzerland}}}

2022

Varotto S., Krueger R., Bierlaire M. (2022). Modelling travel behaviour: A choice modelling perspective. Report TRANSP-OR 220315


@TechReport{VaroKrueBier22,
  author = {Silvia Varotto and Rico Krueger and Michel Bierlaire},
  title = {Modelling travel behaviour: A choice modelling

perspective},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2022},
  type = {Technical Report},
  number = {TRANSP-OR 220315},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2024

Ortelli N., de Lapparent M., Varotto S., Bierlaire M. (2024) An integrated accident injury severity and risk-taking behavior model for the evaluation of Via Sicura. Proceedings of the 12th Symposium of the European Association for Research in Transportation (HEART), 18-20 June 2024, Espoo, Finland


@InProceedings{OrtHilPerLapBie_HEART2024,
  author = {Nicola Ortelli and Matthieu {de Lapparent} and Silvia Varotto and Michel Bierlaire},
  title = {An integrated accident injury severity and risk-taking behavior model for the evaluation of Via Sicura},
  booktime = {Proceedings of the 12th Symposium of the European Association for Research in Transportation (HEART), 18-20 June 2024},
  year = {2024},
  address = {Espoo, Finland}}}

2014

Varotto S., Glerum A., Stathopoulos A., Bierlaire M. (2014) Modelling travel time perception in transport mode choices. Proceedings of the 14th Swiss Transport Research Conference (STRC), May 14-16, Ascona, Switzerland


@InProceedings{VarGleStaBie_STRC2014,
  author = {Silvia Varotto and Aur\'elie Glerum and Amanda Stathopoulos and Michel Bierlaire},
  title = {Modelling travel time perception in transport mode choices},
  booktime = {Proceedings of the 14th Swiss Transport Research Conference (STRC), May 14-16},
  year = {2014},
  address = {Ascona, Switzerland}}}

Reviewing

Research projects

2022

Migration and Discrete Choice Models (MIGDCM)

International migration is at the forefront of policy debates in most countries around the world. In industrialized nations, the proportion of foreigners in total population increased from 4.5 to 12 percent between 1960 and 2019, stirring up fears about economic costs for natives, loss of national identity, and integration issues. In poor countries, international migration raises concerns about the brain drain of highly-skilled workers, as college and university graduates have a much greater propensity to emigrate internationally than the less educated. Hence, the questions of how many people migrate (i.e., migration intensity}, which people migrate first or are more likely to migrate (i.e., migrants' selection), and where migrants choose to settle (i.e., migrants' sorting) have been analyzed from all possible angles in recent literature. Specifically, understanding how people revise their decisions about whether to emigrate, and where to, when facing changes in the global environment is of crucial importance for decision-makers.
- Mar 01, 2022 - Mar 31, 2025
- Sponsor: Swiss National Science Foundation
- Principal investigator: Michel Bierlaire
- Project managers: Silvia Varotto, Evangelos Paschalidis

EPFL courses

Fall 2022

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Silvia Varotto, Nicola Ortelli, Cloe Cortes Balcells, Tom Haering
- Webpage: https://moodle.epfl.ch/course/view.php?id=1001

Spring 2022

Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Silvia Varotto, Selin Atac, Cloe Cortes Balcells
- Webpage: http://transp-or.epfl.ch/courses/OptSim2022

Fall 2021

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Virginie Lurkin
- Teaching assistants: Melvin Wong, Silvia Varotto, Nicola Ortelli, Janody Pougala, Rico Krueger, Tim Hillel
- Webpage: https://moodle.epfl.ch/course/view.php?id=1001

Various lectures

2022

Modelling driver behavior with intelligent vehicle systems in practice.
- Decision-aid methodologies in transportation, EPFL, Lausanne, Switzerland
- Apr 12, 2022
- Lecturer: Silvia Varotto
Hybrid Choice Models.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Mar 11, 2022
- Lecturer: Silvia Varotto
- Assistants: Cloe Cortes Balcells, Selin Atac
Logit Mixtures; Combining RP and SP data.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Mar 09, 2022
- Lecturer: Janody Pougala
- Assistants: Selin Atac, Silvia Varotto

Semester projects

2022-2023

Modelling migration intentions worldwide, Hilda Abigél Horváth (Mathematics)

Supervision: Silvia Varotto, Nicola Ortelli, Michel Bierlaire
Migration across different countries is a major topic of policy debates worldwide that receives relatively little attention in the travel behaviour literature. In industrialized countries, the proportion of immigrants in the total population has increased in recent years resulting in concerns about integration, loss of national identity and economic expenses. In low-opportunity countries, international migration raises fears of loss of highly skilled workers, who are the group most likely to emigrate. Therefore, understanding the main factors that influence the location where migrants choose to settle is of primary interest for both researchers and policy makers. Location choices might be influenced by changes in the attractiveness of the country of origin, of the country of desstination, and of the alternative destinations. A recent study developed a cross-nested logit model to predict migration intentions in India based on characteristics of the individual, characteristics of the destination country and unobserved factors shared between similar destinations. However, there is still a dearth in understanding the main factors influencing migration intentions at a global scale, in countries that differ in terms of size, level of development and willingness to emigrate. The objective of this study is to assess the transferability of the previous model predicting migration intentions in India to other countries in the world. The study will identify the main characteristics of the countries of origin that have an impact on the migration intentions. The data were extracted from the Gallup World Poll (GWP) Survey. The GWP measures a series of key indicators including migration intentions and is one of the most comprehensive datasets available worldwide. Other key indicators measured in the survey are national security, nutrition, housing, job opportunities, financial situation, personal health, civil engagement and overall well-being. The GWP surveys cover more than 150 countries in the world, are usually repeated every year, and include 1000 individuals in each country. In this study, the GWP data will be analysed to select relevant countries based on the coverage, the number of waves available, the respondents per wave, and the variables available. The analysis will identify patterns per country and evolution of migration intentions over time. Mathematical methods will be implemented to understand which variables should be included to improve the model specification and to capture the perceptions of respondents about the living conditions in their country. These methods will be also used to explore the complex correlation patterns between the attributes and the destination choices.

2022

Studying socio-economic variables through the different waves of SARS-CoV-2, Clément Dauvilliers

Supervision: Cloe Cortes Balcells, Silvia Varotto, Michel Bierlaire
The lockdown of March 2020 of several countries has changed the modern world as we know it. Back then, non-pharmaceutical interventions were put into place to mitigate the spreading of the COVID-19. Now, we count on the most effective pharmaceutical intervention, vaccination. In Switzerland, 65.9% of the population is fully vaccinated. At the time, we are dealing with the fifth wave of new cases. However, it is unclear whether the pandemic has a significant impact on the travel behaviour and whether adopting non-pharmaceutical interventions has an impact on daily activities. Therefore, it is important to take a disaggregate approach to analyze the impact of all these variables on the travel behavior of individuals using a disaggregate approach. The long-term goal is to provide insights that transportation planners and public health authorities can exploit to deal with epidemic situations. In this project, we will study the use of different ML algorithms to include the different significant variables that influence the force of infection (probability of going from being susceptible to infected) through the different waves. The main objective is to capture which socio-economic variables of the individuals and which municipality characteristics influence the force of infection and how the impact of these variables change trough the different waves. First, the student will review the existing literature related to epidemiological and activity-based models and get familiar with the tools already developed by the TRANSP-OR lab. Then, the student is expected to test different models through the different waves and check the impact of these variables on behaviour. To account for the contact matrices, we will use FOPH data together with MATSIM output of Switzerland. Finally, the student will calibrate the parameter inside the TRANSP-OR simulator.

2021

Classification of ordinal outcomes for the analysis of injury severity using machine learning methods (ML for Science CS-433), Hilda Abigél Horváth, Julian Paul Schnitzler, Artur Andrzej Stefaniuk (Communication Systems)

Supervision: Silvia Varotto, Melvin Wong, Michel Bierlaire
Ordinal scale responses capture qualitative user feedback which can be used to model individual choice preference or are employed in traffic accident analysis to evaluate accident severity. In this project, we aim to predict the outcome of the severity of the accident using machine learning methods, specifically, using a deep neural network to train the crash model. The model accuracy will be evaluated on three metrics: discrete classification accuracy, geometric mean probability of correct assignment and quadratic weighted kappa.

Service

Ongoing

Member of the Committee Traffic Flow Theory and Characteristics (ACP50) , Transportation Research Board, Washington, D.C. (since Apr 15, 2022)

Completed

Claudia Bongiovanni

Claudia Bongiovanni has been a member of the laboratory from Jun 01, 2021 to Jan 31, 2022

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Claudia Bongiovanni.

Articles in conference proceedings

2022

Haering T., Bongiovanni C., Bierlaire M. (2022) A Benders decomposition for maximum simulated likelihood estimation of advanced discrete choice models. Proceedings of the 10th symposium of the European Association for Research in Transportation (hEART) (hEART), 1-3 June 2022, Leuven, Belgium


@InProceedings{haering_heart2022,
  author = {Tom Haering and Claudia Bongiovanni and Michel Bierlaire},
  title = {A Benders decomposition for maximum simulated likelihood estimation of advanced discrete choice models},
  booktime = {Proceedings of the 10th symposium of the European Association for Research in Transportation (hEART) (hEART), 1-3 June 2022},
  year = {2022},
  address = {Leuven, Belgium}}}

Haering T., Bongiovanni C., Bierlaire M. (2022) A Benders decomposition for maximum simulated likelihood estimation of advanced discrete choice models. Proceedings of the 22nd Swiss Transport Research Conference (STRC), 18-20 May, Ascona, Switzerland


@InProceedings{Haering_STRC2022,
  author = {Tom Haering and Claudia Bongiovanni and Michel Bierlaire},
  title = {A Benders decomposition for maximum simulated likelihood estimation of advanced discrete choice models},
  booktime = {Proceedings of the 22nd Swiss Transport Research Conference (STRC), 18-20 May},
  year = {2022},
  address = {Ascona, Switzerland}}}

Haering T., Bongiovanni C., Bierlaire M. (2022) A Benders decomposition for maximum simulated likelihood estimation of advanced discrete choice models. Proceedings of the 11th Triennial Symposium on Transportation Analysis (TRISTAN XI) (STRC), 19-25 June, , Mauritius


@InProceedings{haering_TRISTAN2022,
  author = {Tom Haering and Claudia Bongiovanni and Michel Bierlaire},
  title = {A Benders decomposition for maximum simulated likelihood estimation of advanced discrete choice models},
  booktime = {Proceedings of the 11th Triennial Symposium on Transportation Analysis (TRISTAN XI) (STRC), 19-25 June},
  year = {2022},
  address = {, Mauritius}}}

2021

Bortolomiol S., Lurkin V., Bierlaire M. (2021) Benders decomposition for choice-based optimization problems with discrete upper-level variables. Proceedings of the 21st Swiss Transport Research Conference (STRC), 12-14 September, ,


@InProceedings{BorLurBieBon_STRC2021,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {Benders decomposition for choice-based optimization problems with discrete upper-level variables},
  booktime = {Proceedings of the 21st Swiss Transport Research Conference (STRC), 12-14 September},
  year = {2021},
  address = {, }}}

Semester projects

2021-2022

Optimal strategy for a multi-vendor, multi-buyer reverse logistics supply chain framework, Olivier Laferrère (Microengineering)

Supervision: Melvin Wong, Claudia Bongiovanni
With the boom of e-commerce and online shopping, retailers and logistics operators must look to sustain- able process improvements in their supply chain to manage the growing volume of inventory and returns. A sustainable logistics strategy contributes to a successful transition to a low- or zero-carbon economy and improves the company�s social impact. In the last-mile segment of delivery in urban centers, efficient reverse logistics strategies are essential to reduce the environmental impact of logistics operations and to reduce greenhouse gas emissions. The goal of this project is to describe a multi-vendor, multi-buyer reverse logistics supply chain frame- work, and to implement a suitable optimization algorithm to maximize revenue streams from combining new and re-manufactured products in the reverse logistics based supply chain.

Melvin Wong

Melvin Wong has been a member of the laboratory from Feb 01, 2020 to Dec 31, 2021

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Melvin Wong.

Journal articles

2021

Wong M., Farooq B. (2021). ResLogit: A residual neural network logit model for data-driven choice modelling. Transportation Research Part C: Emerging Technologies 126 :103050

This paper presents a novel deep learning-based travel behaviour choice model. Our proposed Residual Logit (ResLogit) model formulation seamlessly integrates a Deep Neural Network (DNN) architecture into a multinomial logit model. Recently, DNN models such as the Multi-layer Perceptron (MLP) and the Recurrent Neural Network (RNN) have shown remarkable success in modelling complex and noisy behavioural data. However, econometric studies have argued that machine learning techniques are a `black-box' and difficult to interpret for use in the choice analysis. We develop a data-driven choice model that extends the systematic utility function to incorporate non-linear cross-effects using a series of residual layers and using skipped connections to handle model identifiability in estimating a large number of parameters. The model structure accounts for cross-effects and choice heterogeneity arising from substitution, interactions with non-chosen alternatives and other effects in a non-linear manner. We describe the formulation, model estimation, interpretability and examine the relative performance and econometric implications of our proposed model. We present an illustrative example of the model on a classic red/blue bus choice scenario example. For a real-world application, we use a travel mode choice dataset to analyze the model characteristics compared to traditional neural networks and Logit formulations. Our findings show that our ResLogit approach significantly outperforms MLP models while providing similar interpretability as a Multinomial Logit model.
```
@Article{WongFaro21,
  author = {Melvin Wong and Bilal Farooq},
  title = {ResLogit: A residual neural network logit model for data-driven choice modelling},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2021},
  volume = {126},
  pages = {103050},
  DOI = {10.1016/j.trc.2021.103050},
  note = {Accepted on Feb 15, 2021}}}
```

Technical reports

2020

Wong M., Farooq B. (2020). ResLogit: A residual neural network logit model for data-driven choice modelling. Report arXiv preprint arXiv:1912.10058v2


@TechReport{WongFaro20,
  author = {Melvin Wong and Bilal Farooq},
  title = {ResLogit: A residual neural network logit model for data-driven choice modelling},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2020},
  type = {Technical Report},
  number = {arXiv preprint arXiv:1912.10058v2},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2021

Wong M., Martín-Baos J., Bierlaire M. (2021) A unimodal ordered logit model for ranked choices . Proceedings of the 21st Swiss Transport Research Conference (STRC), 12-14 September, Ascona, Switzerland


@InProceedings{WonMarBie_STRC2021,
  author = {Melvin Wong and {Jos\'e \'Angel} Mart{\'\i}n-Baos and Michel Bierlaire},
  title = {A unimodal ordered logit model for ranked choices	},
  booktime = {Proceedings of the 21st Swiss Transport Research Conference (STRC), 12-14 September},
  year = {2021},
  address = {Ascona, Switzerland}}}

Talks

2021

Wong M. An overview of deep learning strategies for choice modelling: current solutions and future directions November 08, 2021. Bridging machine learning and behaviour models, Alan Turing Institute, Online.


@Misc{Wong2021_ATI,
  author = {Melvin Wong},
  title = {An overview of deep learning strategies for choice modelling: current solutions and future directions},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Wong2021_ATI.pdf}},
  year = {2021},
  note = {Presented at Bridging machine learning and behaviour models, Alan Turing Institute, Online}}}

Wong M., Martín-Baos J., Bierlaire M. A unimodal ordered logit model for ranked choices September 14, 2021. 21st Swiss Transport Research Conference, Ascona, Switzerland.


@Misc{Wong2021_STRC,
  author = {Melvin Wong and {Jos\'e \'Angel} Mart{\'\i}n-Baos and Michel Bierlaire},
  title = {A unimodal ordered logit model for ranked choices},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Wong2021_STRC.pdf}},
  year = {2021},
  note = {Presented at 21st Swiss Transport Research Conference, Ascona, Switzerland}}}

2020

Wong M. Demystifying out-of-sample discrete choice prediction: What can we learn from machine learning? November 17, 2020. CMC Online Seminar Series 2020, Choice Modelling Centre (CMC), University of Leeds, Leeds, UK.


@Misc{Wong_Leeds2020,
  author = {Melvin Wong},
  title = {Demystifying out-of-sample discrete choice prediction: What can we learn from machine learning?},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Wong_Leeds2020.pdf}},
  year = {2020},
  note = {Presented at CMC Online Seminar Series 2020, Choice Modelling Centre (CMC), University of Leeds, Leeds, UK}}}

Awards

2020

Melvin Wong. Swiss Government Excellence Scholarship for Foreign Scholars and Artists, Federal Commission for Scholarships for Foreign Students (FCS).
Each year the Swiss Confederation awards Government Excellence Scholarships to promote international exchange and research cooperation between Switzerland and over 180 other countries. Recipients are selected by the awarding body, the Federal Commission for Scholarships for Foreign Students (FCS)..

Reviewing

Research projects

2019

OrgVisionPro: Automated organizational design and optimization

This project, joint with CLEAP S.A., is will develop advanced analytics algorithms to propose organization design (OD) scenarios based on the existing situation, constraints, and future needs of a business. These scenarios will support organizations in shaping their future by optimizing their structure and operating models.
- Oct 01, 2019 - Jun 30, 2021
- Sponsor: Innosuisse (Swiss Innovation Agency)
- Principal investigator: Michel Bierlaire
- Project managers: Rico Krueger, Tim Hillel
- Collaborators: Melvin Wong, Nour Dougui

EPFL courses

Fall 2021

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Virginie Lurkin
- Teaching assistants: Melvin Wong, Silvia Varotto, Nicola Ortelli, Janody Pougala, Rico Krueger, Tim Hillel
- Webpage: https://moodle.epfl.ch/course/view.php?id=1001

Spring 2021

Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Rico Krueger, Melvin Wong
- Webpage: http://transp-or.epfl.ch/courses/OptSim2021

Fall 2020

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Melvin Wong, Rico Krueger, Janody Pougala, Nicola Ortelli, Meritxell Pacheco, Tim Hillel
- Webpage: https://moodle.epfl.ch/course/view.php?id=1001

Spring 2020

Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Rico Krueger, Melvin Wong
- Webpage: http://transp-or.epfl.ch/courses/OptSim2020/

Semester projects

2021-2022

Optimal strategy for a multi-vendor, multi-buyer reverse logistics supply chain framework, Olivier Laferrère (Microengineering)

Supervision: Melvin Wong, Claudia Bongiovanni
With the boom of e-commerce and online shopping, retailers and logistics operators must look to sustain- able process improvements in their supply chain to manage the growing volume of inventory and returns. A sustainable logistics strategy contributes to a successful transition to a low- or zero-carbon economy and improves the company�s social impact. In the last-mile segment of delivery in urban centers, efficient reverse logistics strategies are essential to reduce the environmental impact of logistics operations and to reduce greenhouse gas emissions. The goal of this project is to describe a multi-vendor, multi-buyer reverse logistics supply chain frame- work, and to implement a suitable optimization algorithm to maximize revenue streams from combining new and re-manufactured products in the reverse logistics based supply chain.

2021

Classification of ordinal outcomes for the analysis of injury severity using machine learning methods (ML for Science CS-433), Hilda Abigél Horváth, Julian Paul Schnitzler, Artur Andrzej Stefaniuk (Communication Systems)

Supervision: Silvia Varotto, Melvin Wong, Michel Bierlaire
Ordinal scale responses capture qualitative user feedback which can be used to model individual choice preference or are employed in traffic accident analysis to evaluate accident severity. In this project, we aim to predict the outcome of the severity of the accident using machine learning methods, specifically, using a deep neural network to train the crash model. The model accuracy will be evaluated on three metrics: discrete classification accuracy, geometric mean probability of correct assignment and quadratic weighted kappa.

Application of sustainable reverse logistics in optimization of last-mile delivery systems, Jacques Roitel

Supervision: Melvin Wong, Michel Bierlaire
This project will investigate the state-of-the-art data-driven approaches to solve these problems using process mining and optimization to model sustainable reverse logistics systems. A comprehensive literature on reverse logistics, last-mile delivery, process mining and optimization techniques will be also be produced. Finally an implementation of the identified approach will be developed as a use case example for reverse logistics

2020-2021

Road maintenance management optimisation, Carole Baslé (Civil Engineering)

Supervision: Melvin Wong, Nour Dougui, Michel Bierlaire
Pavement maintenance is one of the major issues of public agencies. Insufficient investment or inefficient maintenance strategies lead to high economic expenses in the long term. Under budgetary restrictions, the optimal allocation of resources becomes a crucial aspect. Therefore, public agencies rely on pavement management system that prioritize and recommend pavement rehabilitation and maintenance to maximize results within a given budget amount. The goal of this project is to produce a literature review on the existing pavement management systems and methodologies that optimize road maintenance on both network and project level. Besides, different road conditions degradation model should be investigated. Finally, a heuristic method for road maintenance should be implemented and tested on a case study while testing different scenarios of road condition degradation.

2020

Analyzing Machine learning regularization methods in travel mode choice prediction (ML for Science CS-433), Simon Dayer, Arnaud Guibbert, Khalil Merzouk (Communication Systems)

Supervision: Melvin Wong, Michel Bierlaire
A problem in machine learning is to make an algorithm perform well not just on the training data, but also on new inputs. There are a number of regularization methods such as L1/L2, Dropout, max-norm that help improve generalization by reducing overfitting/overtraining. A Deep learning model is applied to a travel mode choice dataset. The objective of the project is to investigate regularization methods for improving learning accuracy.

Rico Krueger

Rico Krueger has been a member of the laboratory from Jan 01, 2019 to Jan 31, 2022

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Rico Krueger.

Journal articles

2024

Cortes Balcells C., Krueger R., Bierlaire M. (2024). Multi-objective Optimization of Activity-Travel Policies for Epidemic Control: Balancing Health and Economic Outcomes on Socio-Economic Segments. Transportation Research Interdisciplinary Perspectives 27 (101183)

Understanding mobility dynamics and their influence on epidemic spread is crucial for effective management strategies, a concept that, despite its importance, has received limited integration in traditional epidemiological models. This study introduces a novel decision support tool that integrates an activity-based model for mobility dynamics with a multi-group compartmental SIRD (Susceptible–Infected–Recovered–Dead) model for infection transmission. The tool consists of a multi-objective optimization framework that evaluates the trade-offs between public health and economic factors in socioeconomic segments. Our findings show that policies targeted at specific demographic groups significantly improve the efficacy of interventions. The framework provides policymakers with a collection of optimized and customized strategies through a user-friendly dashboard, using a multi-objective modeling approach. This visualization compares potential outcomes along the Pareto frontier, helping to select balanced and effective policies. The proposed model offers a significant step forward in epidemic management, providing a robust platform for data-driven decision making in crisis scenarios.
```
@Article{CortKrueBier24,
  author = {Cloe {Cortes Balcells} and Rico Krueger and Michel Bierlaire},
  title = {Multi-objective Optimization of Activity-Travel Policies for Epidemic Control: Balancing Health and Economic Outcomes on Socio-Economic Segments},
  journal = {Transportation Research Interdisciplinary Perspectives},
  year = {2024},
  volume = {27},
  number = {101183},
  DOI = {10.1016/j.trip.2024.101183},
  note = {Accepted on Jul 30, 2024}}}
```

2023

Krueger R., Bierlaire M., Bansal P. (2023). A data fusion approach for ride-sourcing demand estimation: A discrete choice model with sampling and endogeneity corrections . Transportation Research Part C: Emerging Technologies 152 (104180)

Ride-sourcing services offered by companies like Uber and Didi have grown rapidly in the last decade. Understanding the demand for these services is essential for planning and managing modern transportation systems. Existing studies develop statistical models for ride-sourcing demand estimation at an aggregate level due to limited data availability. These models lack foundations in microeconomic theory, ignore competition of ride-sourcing with other travel modes, and cannot be seamlessly integrated into existing individual-level (disaggregate) activity-based models to evaluate system-level impacts of ride-sourcing services. In this paper, we present and apply an approach for estimating ride-sourcing demand at a disaggregate level using discrete choice models and multiple data sources. We first construct a sample of trip-based mode choices in Chicago, USA by enriching household travel survey with publicly available ride-sourcing and taxi trip records. We then formulate a multivariate extreme value-based discrete choice model with sampling and endogeneity corrections to account for the construction of the estimation sample from multiple data sources and endogeneity biases arising from supply-side constraints and surge pricing mechanisms in ride-sourcing systems. Our analysis of the constructed dataset reveals insights into the influence of various socio-economic, land use and built environment features on ride-sourcing demand. We also derive elasticities of ride-sourcing demand relative to travel cost and time. Finally, we illustrate how the developed model can be employed to quantify the welfare implications of ride-sourcing policies and regulations such as terminating certain types of services and introducing ride-sourcing taxes.
```
@Article{KrueBierBans23,
  author = {Rico Krueger and Michel Bierlaire and Prateek Bansal},
  title = {A data fusion approach for ride-sourcing demand estimation: A discrete choice model with sampling and endogeneity corrections },
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2023},
  volume = {152},
  number = {104180},
  DOI = {10.1016/j.trc.2023.104180},
  note = {Accepted on May 17, 2023}}}
```

Krueger R., Bierlaire M., Gasos T., Bansal P. (2023). Robust discrete choice models with t-distributed kernel errors. Statistics and Computing 33 (2)


@Article{KrueBierGasoBans22,
  author = {Rico Krueger and Michel Bierlaire and Thomas Gasos and Prateek Bansal},
  title = {Robust discrete choice models with t-distributed kernel errors},
  journal = {Statistics and Computing},
  year = {2023},
  volume = {33},
  number = {2},
  DOI = {10.1007/s11222-022-10182-3},
  note = {Accepted on Nov 12, 2022}}}

2022

Manser P., Haering T., Hillel T., Pougala J., Krueger R., Bierlaire M. (2022). Estimating flexibility preferences to resolve temporal scheduling conflicts in activity-based modelling. Transportation

This paper presents a novel activity-based demand model that combines an optimisation framework for continuous temporal scheduling decisions (i.e. activity timings and durations) with traditional discrete choice models for non-temporal choice dimensions (i.e. activity participation, number and type of tours, and destinations). The central idea of our approach is that individuals resolve temporal scheduling conflicts that arise from overlapping activities, e.g. needing to work and desiring to shop at the same time, in order to maximise their daily utility. Flexibility parameters capture behavioural preferences that penalise deviations from desired timings. This framework has three advantages over existing activity-based modelling approaches: (i) the time conflicts between different temporal scheduling decisions including the activity sequence are treated jointly; (ii) flexibility parameters follow a utility maximisation approach; and (iii) the framework can be used to estimate and simulate a city-scale case study in reasonable time. We introduce an estimation routine that allows flexibility parameters to be estimated using real-world observations as well as a simulation routine to efficiently resolve temporal conflicts using an optimisation model. The framework is applied to the full-time workers of a synthetic population for the city of Lausanne, Switzerland. We validate the model results against reported schedules. The results demonstrate the capabilities of our approach to reproduce empirical observations in a real-world case study.
```
@Article{MansHaerHillPougKrueBier22,
  author = {Patrick Manser and Tom Haering and Tim Hillel and Janody Pougala and Rico Krueger and Michel Bierlaire},
  title = {Estimating flexibility preferences to resolve temporal scheduling conflicts in activity-based modelling},
  journal = {Transportation},
  year = {2022},
  DOI = {10.1007/s11116-022-10330-8},
  note = {Accepted on Aug 22, 2022}}}
```

2021

Krueger R., Bierlaire M., Daziano R., Rashidi T., Bansal P. (2021). Evaluating the predictive abilities of mixed logit models with unobserved inter- and intra-individual heterogeneity. Journal of Choice Modelling 41 :100323


@Article{KrueBierDaziRashBans,
  author = {Rico Krueger and Michel Bierlaire and Ricardo Daziano and Taha Rashidi and Prateek Bansal},
  title = {Evaluating the predictive abilities of mixed logit models with unobserved inter- and intra-individual heterogeneity},
  journal = {Journal of Choice Modelling},
  year = {2021},
  volume = {41},
  pages = {100323},
  DOI = {10.1016/j.jocm.2021.100323},
  note = {Accepted on Sep 09, 2021}}}

Bansal P., Dua R., Krueger R., Graham D. (2021). Fuel Economy Valuation and Preferences of Indian Two-wheeler Buyers. Journal of Cleaner Production 294 :126328


@Article{BansDuaKrueGrah2021,
  author = {Prateek Bansal and Rubal Dua and Rico Krueger and Daniel Graham},
  title = {Fuel Economy Valuation and Preferences of Indian Two-wheeler Buyers},
  journal = {Journal of Cleaner Production},
  year = {2021},
  volume = {294},
  pages = {126328},
  DOI = {10.1016/j.jclepro.2021.126328},
  note = {Accepted on Feb 07, 2021}}}

Bansal P., Krueger R., Graham D. (2021). Fast Bayesian estimation of spatial count data models. Computational Statistics & Data Analysis 157 :107152


@Article{BansKrueGrah20,
  author = {Prateek Bansal and Rico Krueger and Daniel Graham},
  title = {Fast Bayesian estimation of spatial count data models},
  journal = {Computational Statistics \& Data Analysis},
  year = {2021},
  volume = {157},
  pages = {107152},
  DOI = {10.1016/j.csda.2020.107152},
  note = {Accepted on Dec 01, 2020}}}

2020

Krueger R., Bansal P., Buddhavarapu P. (2020). A New Spatial Count Data Model with Bayesian Additive Regression Trees for Accident Hot Spot Identification. Accident Analysis and Prevention 144 ():105623


@Article{KrueBanBud2020,
  author = {Rico Krueger and Prateek Bansal and Prasad Buddhavarapu},
  title = {A New Spatial Count Data Model with Bayesian Additive Regression Trees for Accident Hot Spot Identification},
  journal = {Accident Analysis and Prevention},
  year = {2020},
  volume = {144},
  pages = {105623},
  DOI = {10.1016/j.aap.2020.105623},
  note = {Accepted on May 28, 2020}}}

Krueger R., Rashidi T., Vij A. (2020). A Dirichlet process mixture model of discrete choice: Comparisons and a case study on preferences for shared automated vehicles. Journal of Choice Modelling 36 ():105623


@Article{KrueRashVij2020,
  author = {Rico Krueger and Taha Rashidi and Akshay Vij},
  title = {A Dirichlet process mixture model of discrete choice: Comparisons and a case study on preferences for shared automated vehicles},
  journal = {Journal of Choice Modelling},
  year = {2020},
  volume = {36},
  pages = {105623},
  note = {Accepted on May 27, 2020}}}

Bansal P., Krueger R., Bierlaire M., Daziano R., Rashidi T. (2020). Bayesian Estimation of Mixed Multinomial Logit Models: Advances and Simulation-Based Evaluations. Transportation Research Part B: Methodological 131 :124-142


@Article{BansKrueBierDaziRash19,
  author = {Prateek Bansal and Rico Krueger and Michel Bierlaire and Ricardo Daziano and Taha Rashidi},
  title = {Bayesian Estimation of Mixed Multinomial Logit Models: Advances and Simulation-Based Evaluations},
  journal = {Transportation Research Part B: Methodological},
  year = {2020},
  volume = {131},
  pages = {124-142},
  DOI = {10.1016/j.trb.2019.12.001},
  note = {Accepted on Dec 02, 2019}}}

Book chapters

2024

Bierlaire M., Krueger R. (2024) Sampling and discrete choice. In S. Hess and A. Daly (ed) Handbook of Choice Modelling, Edward Elgar Publishing , Cheltenham, UK [ISBN 9781800375628]


@InProceedings{BierKrue24,
  author = {Michel Bierlaire and Rico Krueger},
  title = {Sampling and discrete choice},
  year = {2024},
  booktile = {Handbook of Choice Modelling},
  editor = {S. Hess and A. Daly},
  publisher = {Edward Elgar Publishing},
  address = {Cheltenham, UK},
  pages = {693-719}}}


@InProceedings{VarKruBie24,
  author = {Silvia Varotto and Rico Krueger and Michel Bierlaire},
  title = {Modelling travel behaviour: a choice modelling perspective },
  year = {2024},
  booktile = {Handbook of Travel Behavior},
  editor = {D. Potoglou and J. Spinney},
  publisher = {Elgar},
  address = {Cheltenham},
  pages = {118-139}}}

Technical reports

2022

Varotto S., Krueger R., Bierlaire M. (2022). Modelling travel behaviour: A choice modelling perspective. Report TRANSP-OR 220315


@TechReport{VaroKrueBier22,
  author = {Silvia Varotto and Rico Krueger and Michel Bierlaire},
  title = {Modelling travel behaviour: A choice modelling

perspective},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2022},
  type = {Technical Report},
  number = {TRANSP-OR 220315},
  address = {Lausanne, Switzerland}}}

2021

Manser P., Haering T., Hillel T., Pougala J., Krueger R., Bierlaire M. (2021). Resolving temporal scheduling conflicts in activity-based modelling. Report TRANSP-OR 211209


@TechReport{ManserEtAl2021,
  author = {Patrick Manser and Tom Haering and Tim Hillel and Janody Pougala and Rico Krueger and Michel Bierlaire},
  title = {Resolving temporal scheduling conflicts in activity-based modelling},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2021},
  type = {Technical Report},
  number = {TRANSP-OR 211209},
  address = {Lausanne, Switzerland}}}

Krueger R., Daziano R. (2021). Stated choice analysis of preferences for COVID-19 vaccines using the Choquet integral. Report TRANSP-OR 211129


@TechReport{KrueDazi2021,
  author = {Rico Krueger and Ricardo Daziano},
  title = {Stated choice analysis of preferences for COVID-19 vaccines using the Choquet integral},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2021},
  type = {Technical Report},
  number = {TRANSP-OR 211129},
  address = {Lausanne, Switzerland}}}


@TechReport{KrueBierDaziRashBans21,
  author = {Rico Krueger and Michel Bierlaire and Ricardo Daziano and Taha Rashidi and Prateek Bansal},
  title = {Evaluating the predictive abilities of mixed logit models with unobserved inter- and intra-individual heterogeneity},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2021},
  type = {Technical Report},
  number = {TRANSP-OR 210617},
  address = {Lausanne, Switzerland}}}

Krueger R., Bierlaire M., Gasos T., Bansal P. (2021). Robust discrete choice models with t-distributed kernel errors. Report TRANSP-OR 210518


@TechReport{KrueBierGasoBans21,
  author = {Rico Krueger and Michel Bierlaire and Thomas Gasos and Prateek Bansal},
  title = {Robust discrete choice models with t-distributed kernel errors},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2021},
  type = {Technical Report},
  number = {TRANSP-OR 210518},
  address = {Lausanne, Switzerland}}}

2020

Bierlaire M., Krueger R. (2020). Sampling and discrete choice. Report TRANSP-OR 201109


@TechReport{BierKrue20,
  author = {Michel Bierlaire and Rico Krueger},
  title = {Sampling and discrete choice},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2020},
  type = {Technical Report},
  number = {TRANSP-OR 201109},
  address = {Lausanne, Switzerland}}}

Krueger R., Bansal P., Bierlaire M., Daziano R., Rashidi T. (2020). Variational bayesian inference for mixed logit models with unobserved inter-and intra-individual heterogeneity. Report arXiv:1905.00419


@TechReport{KrueBansBierDaziRash20,
  author = {Rico Krueger and Prateek Bansal and Michel Bierlaire and Ricardo Daziano and Taha Rashidi},
  title = {Variational bayesian inference for mixed logit models with unobserved inter-and intra-individual heterogeneity},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2020},
  type = {Technical Report},
  number = {arXiv:1905.00419},
  address = {Lausanne, Switzerland}}}

2019

Bansal P., Krueger R., Bierlaire M., Daziano R., Rashidi T. (2019). Bayesian estimation of mixed multinomial logit models: Advances and simulation-based evaluations.. Report arXiv:1904.03647


@TechReport{BansKrueBierDaziRash19,
  author = {Prateek Bansal and Rico Krueger and Michel Bierlaire and Ricardo Daziano and Taha Rashidi},
  title = {Bayesian estimation of mixed multinomial

logit models: Advances and simulation-based evaluations.},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2019},
  type = {Technical Report},
  number = {arXiv:1904.03647},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2024

Cortes Balcells C., Krueger R., Bierlaire M. (2024) Enhancing Epidemiological Models with Activity-Travel Behavior and Risk Perception: A Simulation Framework for Policy Management . Proceedings of the 24th Swiss Transport Research Conference (STRC), May 15-17, Ascona, Switzerland


@InProceedings{CCBRKMB_STRC2024,
  author = {Cloe {Cortes Balcells} and Rico Krueger and Michel Bierlaire},
  title = {Enhancing Epidemiological Models with Activity-Travel Behavior and Risk Perception: A Simulation Framework for Policy Management

},
  booktime = {Proceedings of the 24th Swiss Transport Research Conference (STRC), May 15-17},
  year = {2024},
  address = {Ascona, Switzerland}}}

2023

Cortes Balcells C., Krueger R., Bierlaire M. (2023) Interdisciplinary Behavioral Model (IBM) for Controlling Infectious Diseases. Proceedings of the 23rd Swiss Transport Research Conference (STRC), May 10-12, Ascona, Switzerland


@InProceedings{CCBRKMB_STRC2023,
  author = {Cloe {Cortes Balcells} and Rico Krueger and Michel Bierlaire},
  title = {Interdisciplinary Behavioral Model (IBM) for Controlling Infectious Diseases},
  booktime = {Proceedings of the 23rd Swiss Transport Research Conference (STRC), May 10-12},
  year = {2023},
  address = {Ascona, Switzerland}}}

2022

Cortes Balcells C., Krueger R., Bierlaire M. (2022) SARS-CoV-2 epidemiological model based on socio-economic variables in Switzerland. Proceedings of the 22nd Swiss Transport Research Conference (STRC), May 18-20, Ascona, Switzerland


@InProceedings{CCBRKMB_STRC2022,
  author = {Cloe {Cortes Balcells} and Rico Krueger and Michel Bierlaire},
  title = {SARS-CoV-2 epidemiological model based on socio-economic variables in Switzerland},
  booktime = {Proceedings of the 22nd Swiss Transport Research Conference (STRC), May 18-20},
  year = {2022},
  address = {Ascona, Switzerland}}}

2021

Cortes Balcells C., Krueger R., Bierlaire M. (2021) Activity-based modeling and simulation of epidemics. Proceedings of the 21st Swiss Transport Research Conference (STRC), September 12-14, Ascona, Switzerland


@InProceedings{CCBRKMB_STRC2021,
  author = {Cloe {Cortes Balcells} and Rico Krueger and Michel Bierlaire},
  title = {Activity-based modeling and simulation of epidemics},
  booktime = {Proceedings of the 21st Swiss Transport Research Conference (STRC), September 12-14},
  year = {2021},
  address = {Ascona, Switzerland}}}

Haering T., Manser P., Hillel T., Pougala J., Krueger R., Bierlaire M. (2021) Resolving time conflicts in activity-based scheduling: A case study of Lausanne. Proceedings of the 21st Swiss Transport Research Conference (STRC), 12-14 September, Ascona, Switzerland


@InProceedings{Haering_STRC2021,
  author = {Tom Haering and Patrick Manser and Tim Hillel and Janody Pougala and Rico Krueger and Michel Bierlaire},
  title = {Resolving time conflicts in activity-based scheduling: A case study of Lausanne},
  booktime = {Proceedings of the 21st Swiss Transport Research Conference (STRC), 12-14 September},
  year = {2021},
  address = {Ascona, Switzerland}}}

Talks

2021

Krueger R. Introduction to Bayesian inference December 15, 2021. Research seminar, School of Engineering and IT, University of New South Wales, Canberra, Australia.


@Misc{Krueger_UNSW2021,
  author = {Rico Krueger},
  title = {Introduction to Bayesian inference},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Krueger_UNSW2021.pdf}},
  year = {2021},
  note = {Presented at Research seminar, School of Engineering and IT, University of New South Wales, Canberra, Australia}}}

Bansal P., Kessels R., Krueger R., Graham D. Changes in activity-travel behaviour of London Underground users during and after the COVID-19 pandemic May 28, 2021. ICMC Mini Online Event.


@Misc{Krueger_ICMC2021,
  author = {Prateek Bansal and Roselinde Kessels and Rico Krueger and Daniel Graham},
  title = {Changes in activity-travel behaviour of London Underground users during and after the COVID-19 pandemic},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Krueger_ICMC2021.pdf}},
  year = {2021},
  note = {Presented at ICMC Mini Online Event}}}

Krueger R. Bayesian machine learning and spatial count data models: Advances in estimation and specification February 03, 2021. Research seminar, Transport Division at DTU Management, Technical University of Denmark, Lyngby, Denmark.


@Misc{Krueger_DTU2021,
  author = {Rico Krueger},
  title = {Bayesian machine learning and spatial count data models: Advances in estimation and specification},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Krueger_DTU2021.pdf}},
  year = {2021},
  note = {Presented at Research seminar, Transport Division at DTU Management, Technical University of Denmark, Lyngby, Denmark}}}

Krueger R., Bansal P., Buddhavarapu P. A New Spatial Count Data Model with Bayesian Additive Regression Trees for Accident Hot Spot Identification February 03, 2021. hEART 2020: 9th Symposium of the European Association for Research in Transportation, LAET (ENTPE, University Lyon2), Lyon, France.


@Misc{Krueger_HEART2020,
  author = {Rico Krueger and Prateek Bansal and Prasad Buddhavarapu},
  title = { A New Spatial Count Data Model with Bayesian Additive Regression Trees for Accident Hot Spot Identification},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Krueger_HEART2020.pdf}},
  year = {2021},
  note = {Presented at hEART 2020: 9th Symposium of the European Association for Research in Transportation, LAET (ENTPE, University Lyon2), Lyon, France}}}

2020

Krueger R., Bansal P., Buddhavarapu P. A New Spatial Count Data Model with Bayesian Additive Regression Trees for Accident Hot Spot Identification August 12, 2020. Bridging Transportation Researchers Online Conference.


@Misc{Krueger_BTR2020,
  author = {Rico Krueger and Prateek Bansal and Prasad Buddhavarapu},
  title = {A New Spatial Count Data Model with Bayesian Additive Regression Trees for Accident Hot Spot Identification},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Krueger_BTR2020.pdf}},
  year = {2020},
  note = {Presented at Bridging Transportation Researchers Online Conference}}}

Bansal P., Krueger R., Bierlaire M., Graham D. Variational Bayesian inference for spatial negative binomial count data models with unobserved heterogeneity May 14, 2020. STRC 2020.


@Misc{Bansal_STRC2020,
  author = {Prateek Bansal and Rico Krueger and Michel Bierlaire and Daniel Graham},
  title = {Variational Bayesian inference for spatial negative binomial count data models with unobserved heterogeneity},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Bansal_STRC2020.pdf}},
  year = {2020},
  note = {Presented at STRC 2020}}}

Reviewing

Transportation Research Part A: Policy and Practice (11)
Transportation Letters: the International Journal of Transportation Research (10)
Transportation Research Part C: Emerging Technologies (9)
Transportation Research Part B: Methodological (5)
Journal of Choice Modelling (3)
Accident Analysis and Prevention (2)
IEEE Open Journal of Intelligent Transportation Systems (2)
International Journal of Sustainable Transportation (2)
International Journal of Transportation Science and Technology (2)
Journal of Transport Geography (2)
Nature Sustainability (2)
Research in Transportation Economics (2)
AStA Advances in Statistical Analysis (1)
Journal of Urban Planning and Developement (1)
Networks and Spatial Economics (1)
Public Transport (1)
Technology in Society (1)
Transport Policy (1)
Transportation (1)
Transportmetrica (1)

Research projects

2020

Optimization of individual mobility plans to simulate future travel in Switzerland

This project, joint with Swiss Federal Railways (SBB) will develop a new activity-based modelling approach based on optimization of individual daily mobility plans. This approach will be implemented within SBB's existing nationwide model for Switzerland for investment and service planning decisions for future transportation.
- Sep 01, 2020 - Mar 01, 2022
- Sponsor: Innosuisse (Swiss Innovation Agency)
- Principal investigator: Michel Bierlaire
- Project manager: Tim Hillel
- Collaborators: Janody Pougala, Rico Krueger

2019

OrgVisionPro: Automated organizational design and optimization

This project, joint with CLEAP S.A., is will develop advanced analytics algorithms to propose organization design (OD) scenarios based on the existing situation, constraints, and future needs of a business. These scenarios will support organizations in shaping their future by optimizing their structure and operating models.
- Oct 01, 2019 - Jun 30, 2021
- Sponsor: Innosuisse (Swiss Innovation Agency)
- Principal investigator: Michel Bierlaire
- Project managers: Rico Krueger, Tim Hillel
- Collaborators: Melvin Wong, Nour Dougui

EPFL courses

Spring 2021

Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Rico Krueger, Melvin Wong
- Webpage: http://transp-or.epfl.ch/courses/OptSim2021

Fall 2020

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Melvin Wong, Rico Krueger, Janody Pougala, Nicola Ortelli, Meritxell Pacheco, Tim Hillel
- Webpage: https://moodle.epfl.ch/course/view.php?id=1001

Spring 2020

Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Rico Krueger, Melvin Wong
- Webpage: http://transp-or.epfl.ch/courses/OptSim2020/

Various lectures

2021

Hybrid Choice Models.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Feb 12, 2021
- Lecturer: Nicola Ortelli
- Assistant: Rico Krueger
Bayesian Estimation; Individual Prediction.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Feb 11, 2021
- Lecturer: Rico Krueger
- Assistant: Tim Hillel

2019

Bayesian Estimation; Individual Prediction.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Mar 27, 2019
- Lecturer: Rico Krueger
- Assistants: Tim Hillel, Selin Atac, Meritxell Pacheco
Logit Mixtures; Combining RP and SP data.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Mar 26, 2019
- Lecturer: Meritxell Pacheco
- Assistants: Tim Hillel, Rico Krueger

PhD supervision

Cloe Cortes Balcells, Activity-based models and epidemics.

Master theses

2020

Transportation mode classification with smartphone accelerometer data: An end-to-end deep learning approach, Julien Harbulot (None)
- Supervision: Rico Krueger, Michel Bierlaire
- External expert: Florent Martin

Semester projects

2021-2022

Drawing infection probabilities based on socio-economic characteristics using ML Causal Inference, Hannah Gelblat

Supervision: Cloe Cortes Balcells, Rico Krueger, Michel Bierlaire
Countries everywhere in the world have been adopting different policies to lower the toll of the COVID-19 pandemic. Epidemiological and behavioural models have been widely used to guide decision-making. In this project, we will study the use of causal inference as a tool to determine which variables are significant and study their causal effect on the probability to become infected. We aim to compare these results with the more traditional approach. It will account for the uncertainty inherent to the nature of the problem to decide which variables are meaningful when modelling the infection with a virus. We hope this new model will provide insight on transmission and intervention that will complete what can be obtained with usual compartmental models (SIR). To do that, each student will implement different causal discovery methods based on graphical models. For example, a score-based method like the greedy equivalence search architecture, or a non-linear method Iike a method based on the linear, non-Gaussian model.

Drawing infection probabilities based on socio-economic characteristics using ML Causal Inference, Mathias Nuris

Supervision: Cloe Cortes Balcells, Rico Krueger, Michel Bierlaire
Countries everywhere in the world have been adopting different policies to lower the toll of the COVID-19 pandemic. Epidemiological and behavioural models have been widely used to guide decision-making. In this project, we will study the use of causal inference as a tool to determine which variables are significant and study their causal effect on the probability to become infected. We aim to compare these results with the more traditional approach. It will account for the uncertainty inherent to the nature of the problem to decide which variables are meaningful when modelling the infection with a virus. We hope this new model will provide insight on transmission and intervention that will complete what can be obtained with usual compartmental models (SIR). To do that, each student will implement different causal discovery methods based on graphical models. For example, a score-based method like the greedy equivalence search architecture, or a non-linear method Iike a method based on the linear, non-Gaussian model.

2021

Matrix factorisation methods, Ambroise Favre

Supervision: Rico Krueger, Michel Bierlaire
The aim of the project is to explore the state-of-the art of the use of matrix factorisation methods in machine learning and econometrics through literature surveys and practical implementation exercises.

Designing a MATSIM environment to study the impact of SARS-CoV-2 in mobility, Antoine Crettenand

Supervision: Cloe Cortes Balcells, Rico Krueger, Michel Bierlaire
Countries everywhere in the world have been adopting different policies in order to lower the toll of the COVID-19 pandemic. Epidemiological and behavioural models have been widely used to guide decision making. In this project, we aim at building a disaggregate model (agent-based approach) that will couple two models: one with the activities of people and another one with the transmission of the virus. We hope this new model will provide insight on transmission and intervention that will complete what can be obtained with usual compartmental models (SIR). In order to do that, we will use the Matsim API (Episim), hence the student will not code everything from scratch. First, we will review the existing literature related to epidemiological and activity-based models and get familiar with MATSim software. Then, we will develop an environment in MATSim. Specifically, we will use the Berlin scenario files which are public, together with google mobility data so that we can modify the base mobility according to the different policies applied during the different waves of SARS-CoV-2. Finally, we will create different scenarios in order to test the effects of different characteristics of the city/region.

2020

Bayesian analysis of multinomial discrete choice model with t-distributed kernel errors, Thomas Gasos

Supervision: Rico Krueger, Michel Bierlaire
This project develops Bayes estimators for two robust alternatives to the multinomial probit models. Both alternative models belong to the family of robit models, whose kernel error distributions are heavy-tailed t-distributions. The first model is the multinomial robit (MNR) model in which a generic degrees of freedom parameter controls the heavy-tailedness of the kernel error distribution. The second alternative, the generalised multinomial robit (Gen-MNR) model, is more flexible than MNR, as it allows for alternative-specific marginal heavy-tailedness of the kernel error distribution. The performance of the proposed estimators is evaluated on simulated and real data.

Service

Ongoing

Member of the Editorial Board, Transportation Letters (since Feb 15, 2021)

Completed

Reviewer, National Science Foundation (NSF), USA (Feb 25, 2021 - Mar 18, 2021)

Nour Dougui

Nour Dougui has been a member of the laboratory from Aug 01, 2018 to Aug 31, 2022

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Nour Dougui.

Research projects

2019

OrgVisionPro: Automated organizational design and optimization

This project, joint with CLEAP S.A., is will develop advanced analytics algorithms to propose organization design (OD) scenarios based on the existing situation, constraints, and future needs of a business. These scenarios will support organizations in shaping their future by optimizing their structure and operating models.
- Oct 01, 2019 - Jun 30, 2021
- Sponsor: Innosuisse (Swiss Innovation Agency)
- Principal investigator: Michel Bierlaire
- Project managers: Rico Krueger, Tim Hillel
- Collaborators: Melvin Wong, Nour Dougui

EPFL courses

Spring 2022

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Tim Hillel, Nour Dougui
- Teaching assistants: Selin Atac, Janody Pougala, Marija Kukic, Negar Rezvany, Tom Haering

Fall 2021

Introduction to optimization and operations research .
- Level: Bachelor
- Sections: Mechanical Engineering, Civil Engineering, Environmental Sciences and Engineering, Electrical and Electronics Engineering
- Lecturer: Virginie Lurkin
- Teaching assistants: Nour Dougui, Negar Rezvany, Nicholas Molyneaux, Gael Lederrey, Marija Kukic, Tom Haering, Stefano Bortolomiol, Cloe Cortes Balcells

Spring 2021

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Tim Hillel, Nour Dougui
- Teaching assistants: Selin Atac, Janody Pougala, Marija Kukic, Negar Rezvany, Nicola Ortelli, Stefano Bortolomiol
- Webpage: https://transp-or.epfl.ch/courses/decisionAid2020/index.php

Fall 2020

Introduction to optimization and operations research .
- Level: Bachelor
- Sections: Mechanical Engineering, Civil Engineering, Environmental Sciences and Engineering, Electrical and Electronics Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Nour Dougui, Selin Atac, Stefano Bortolomiol, Marija Kukic, None None, Gael Lederrey, Cloe Cortes Balcells, Negar Rezvany

Spring 2020

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Tim Hillel, Nour Dougui
- Teaching assistants: Stefano Bortolomiol, Gael Lederrey, Selin Atac, Janody Pougala
- Webpage: https://transp-or.epfl.ch/courses/decisionAid2020/index.php

Fall 2019

Introduction to optimization and operations research .
- Level: Bachelor
- Sections: Mechanical Engineering, Civil Engineering, Environmental Sciences and Engineering, Electrical and Electronics Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Nour Dougui, Selin Atac, Stefano Bortolomiol, Nicholas Molyneaux, Gael Lederrey
- Webpage: https://moodle.epfl.ch/course/view.php?id=14491

Fall 2018

Introduction � l'optimisation et � la recherche op�rationnelle.
- Level: Bachelor
- Sections: Mechanical Engineering, Civil Engineering, Environmental Sciences and Engineering, Electrical and Electronics Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Nikola Obrenovic, Nour Dougui, Stefano Bortolomiol, Selin Atac, Gael Lederrey
- Webpage: http://transp-or.epfl.ch/courses/optimization2018/

Master theses

2022

Targeted COVID-19 policies in Switzerland: A review of different optimization strategies., Mattia Mariantoni (Mathematics)
- Supervision: Michel Bierlaire, Cloe Cortes Balcells, Nour Dougui
- External expert: Joseph Lemaitre

2021

The railway timetable rescheduling problem with capacity constraints, Benoit Pahud (Civil Engineering)
- Supervision: Nour Dougui, Marija Kukic, Stefano Bortolomiol
- External expert: Hellwig Matthias

Semester projects

2022

Road sections clustering, Salim Benchelabi (Mathematics)

Supervision: Nour Dougui, Marija Kukic, Michel Bierlaire
Pavement maintenance is one of the major issues of public agencies. Inefficient maintenance strategies lead to high economic expenses in the long term. Public agencies rely on pavement management system (PMS) to recommend pavement rehabilitation and maintenance. The first step of a PMS is to create homogeneous worksites of reasonable sizes (considered practical and economically relevant). This is performed by grouping road sections based on conditions data and degradation laws over time for the network. In practice, the grouping or clustering phase is done by a basic algorithm whose results then need to be manually checked and repaired. This makes the task tedious and time consuming. The goal of this project is in a first instance to implement a deterministic clustering algorithm that takes as input road sections information (position, type of surface, type of traffic, age...) together with a deterministic degradation law and regroups the sections in clusters using Machine Learning algorithms such as k-means. In a second instance, a probabilistic degradation law will be considered and a probabilistic clustering algorithm such as Expectation�Maximization will be implemented. Both algorithms will be tested on real world case study and the result will be compared to the results of an existing PMS clustering methodology.

2021

The railway timetable rescheduling problem, Benoit Pahud (Civil Engineering)

Supervision: Nour Dougui, Marija Kukic, Stefano Bortolomiol
In railway networks, unexpected disruptions may occur for different reasons and cause delays, service denial, and, consequently, passenger inconvenience. This pre-study project will look at remediation strategies such as canceling, delaying or rerouting trains in case of unexpected disruptions. This pre-study project follows two main lines of research. First, the student will familiarize with state-of-the-art methodologies and algorithms to generate railway timetables in a disrupted network. Second, the student will learn how these methodologies can be integrated in the commercial software Viriato, produced by the company SMA und Partner AG.

2020-2021

Schedule repair in liner shipping, Benoit Pahud (Civil Engineering)

Supervision: Stefano Bortolomiol, Nour Dougui, Michel Bierlaire
Large liner shipping companies operate several hundred ships worldwide. These ships carry multi-modal containers on pre-established routes with a regular schedule (typically weekly). A schedule is thus an ordered list of port calls (i.e. stops in a harbour) with associated time windows. Since there are several thousands possible ports in the world, designing routes is a complex problem. Furthermore, since a rotation takes weeks or even months, roughly four journeys out of five end up requiring adjustments to accommodate delays, breakdowns or other unforeseeable but frequent events. Due to the extent of the operations, improving from an adequate schedule to an optimal one may yield enormous benefits, not only economically but also in terms of environmental impact and of quality of life for workers. Given the nominal schedule and an additional constraint stemming from an unforeseen event, the aim of the project is to use geographical information and demand statistics in the various ports of a liner shipping network, the student applies Operational Research methodologies to generate a new optimal schedule, completing as much of the original mission as possible while minimising the ecological and economic impacts.

Road maintenance management optimisation, Carole Baslé (Civil Engineering)

Supervision: Melvin Wong, Nour Dougui, Michel Bierlaire
Pavement maintenance is one of the major issues of public agencies. Insufficient investment or inefficient maintenance strategies lead to high economic expenses in the long term. Under budgetary restrictions, the optimal allocation of resources becomes a crucial aspect. Therefore, public agencies rely on pavement management system that prioritize and recommend pavement rehabilitation and maintenance to maximize results within a given budget amount. The goal of this project is to produce a literature review on the existing pavement management systems and methodologies that optimize road maintenance on both network and project level. Besides, different road conditions degradation model should be investigated. Finally, a heuristic method for road maintenance should be implemented and tested on a case study while testing different scenarios of road condition degradation.

2020

Optimizing Organizational Chart using local search method, Hugo Bocquet

Supervision: Nour Dougui, Selin Atac, Michel Bierlaire
The aim of this project is to produce a near optimal Organisational Chart for a real case study. This Organisational Chart should optimize the span of control of Management in the company by maximizing a coverage metric using clearly-dened manipulations of the organizational design. To achieve this goal a local search method will be used and the results should be compared to those given by an exact method (Simplex). We will in a rst phase apply the optimization method to a small sample of Organisational Chart without considering the role of the employees. In a second phase, the role of the employees should be considered and a larger Organisational Chart should be considered.

Robust routing and scheduling in liner shipping, Yannis Voet (Civil Engineering)

Supervision: Stefano Bortolomiol, Nour Dougui, Michel Bierlaire
Large liner shipping companies operate several hundred ships worldwide. These ships carry multi-modal containers on pre-established routes with a regular schedule (typically weekly). A schedule is thus an ordered list of port calls (i.e. stops in a harbour) with associated time windows. Since there are several thousands possible ports in the world, designing routes is a complex problem. Furthermore, since a rotation takes weeks or even months, roughly four journeys out of five end up requiring adjustments to accommodate delays, breakdowns or other unforeseeable but frequent events. Due to the extent of the operations, improving from an adequate schedule to an optimal one may yield enormous benefits, not only economically but also in terms of environmental impact and of quality of life for workers. Given geographical information and demand statistics in the various ports of a network, the project aims at applying Operational Research methodologies to automatically generating shipping schedules that make sense technically, economically and environmentally, as well as resisting perturbations. This project is proposed by Mediterranean Shipping Company (MSC).

2018-2019

Formulating and solving a dial-a-ride problem, Rym Karime (Civil Engineering)

Supervision: Yuki Oyama, Nour Dougui, Michel Bierlaire
The Dial-a-Ride Problem (DARP) is a problem to design a vehicular route and schedule, given the passenger requests that are characterized by origins (pickup points) and destinations (delivery points) often with the time windows. In recent years, solving the DARP is increasingly demanded, re ecting new technologies for mobility. On-demand transportation for elderly or disabled people is a typical example of application. The project is mainly dedicated to the following specific tasks. First, the literature review will be done so that the student gets familiar with the model concepts and formulations of the DARP. The student is expected to understand the difference among several types of models, such as between static and dynamic models, or between single-vehicle and multi-vehicle models. At the same time, the solution methodologies that are relevant to each type of DARP will be investigated. Second, the student should acquire the basic skills for optimization problem. Though several exercises, she will get used to coding and using appropriate softwares for solving the problem. Given the knowledge and skills, finally, she should define a DARP for a specific example. The problem will be solved by at least two methodologies and be analyzed.

Towards a techno-economic evaluation framework for regional train propulsion architectures, Florian Mueller

Supervision: Nour Dougui, Nikola Obrenovic, Michel Bierlaire
Railway can be the most environmental mode for land transport. However the sector faces cost challenges. Apart from main routes, tracks are often not electrified, requiring pollutive and operational expensive diesel propulsion systems. In contrary to road vehicles, there are no commercial large-scale applications of hybrid drivetrains. Furthermore, the dependencies of hybrid drivetrains on energy supplying infrastructure, like overhead wires or recharge points, has not been researched yet. In order to assess the potential of hybrid drivetrains holistically, the project Toolbox for Optimal Railway Propulsion Architectures (TORPA) has set up a framework to define drivetrain solutions, optimize them, and compare them among each other. Prior to this semester project, 58 drivetrain architectures have been defined. One of them was optimized toward the objectives of driving CO2 emissions and investment costs, on a specific use case. However, these bare results were inconclusive and expensive to compute for more than one use case. In this semester project, we downselect the number of possible architectures, outlining the currently most relevant ones. Furthermore, we include infrastructure requirements in the definition of architectures. The metric of investment cost is extended to display the full life cycle costs of architectures. The model of driving CO2 emissions is attempted to display all vehicle life cycle emissions, but left at the current state after qualitatively stating significant CO2 contributors not included in the calculation models. In order to assess the potential of the extended framework, it was required to state test cases, define tangible experiments, and prioritize them. Previously, it is researched which parameters should be chosen to be relevant for such experiments. Thereby, representative generic test tracks are conceived. We choose the question of viability of track electrification as first test case for the software framework. Thus, the currently operating vehicle architectures for diesel or full electric operation are applied. Especially the impacts of currently existing electrification infrastructure and track parameters, like distance and stop frequency, are investigated. Firstly, we imply a track with average constitution and operation. It is found, that the break even of track electrification is reached when a third of it is already electrified due to e. g. intersection with other tracks. Furthermore, we find that stop frequency is decisive for electrification break even: Tracks with shortened stop distance may be cheaper to be operated electrically, even if there is no catenary infrastructure built up yet.

Tim Hillel

Tim Hillel has been a member of the laboratory from Jan 15, 2018 to Aug 31, 2022

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Tim Hillel.

Journal articles

2023

Rezvany N., Bierlaire M., Hillel T. (2023). Simulating intra-household interactions for in- and out-of-home activity scheduling. Transportation Research Part C: Emerging Technologies 157 (104362)

Various interactions, time arrangements, and constraints exist for individuals scheduling their day as a member of a household, which affect their in-home as well as out-of-home activity schedule. However, the existing activity-based models are mostly based on the individual decision-making process, which are limited in their demonstration of behaviour. We simulate multiple intra-household interaction dimensions within the same framework and capture the coordination of the activity scheduling decisions among all household members. Our approach adopts the Optimisation-based Activity Scheduling Integrating Simultaneous choice dimensions (OASIS) framework, which is at the level of isolated individuals and focuses on out-of-home activity schedules. We jointly simulate in- and out-of-home activities and incorporate interactions into the framework. Our framework contributes to the state-of-the-art in activity-based modelling by explicitly capturing multiple interactions within the same model, such as the allocation of the private vehicle to household members, dividing household maintenance responsibilities, escorting, joint activity participation, and sharing rides. We operationalise the model using time-use-survey data from the United Kingdom. The simulation results demon- strate the ability of the framework to capture complex intra-household interactions. We then demonstrate how these interactions can cause individuals to deviate from their schedules planned in isolation. This is a general framework applicable to different household compositions and available resources.
```
@Article{RezBieHil23,
  author = {Negar Rezvany and Michel Bierlaire and Tim Hillel},
  title = {Simulating intra-household interactions for in- and out-of-home activity scheduling},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2023},
  volume = {157},
  number = {104362},
  DOI = {10.1016/j.trc.2023.104362},
  note = {Accepted on Sep 26, 2023}}}
```

Pougala J., Hillel T., Bierlaire M. (2023). OASIS: Optimisation-based Activity Scheduling with Integrated Simultaneous choice dimensions. Transportation Research Part C: Emerging Technologies 155


@Article{PougHillBier23,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {OASIS: Optimisation-based Activity Scheduling with Integrated Simultaneous choice dimensions},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2023},
  volume = {155},
  DOI = {10.1016/j.trc.2023.104291

}}}

2022

Manser P., Haering T., Hillel T., Pougala J., Krueger R., Bierlaire M. (2022). Estimating flexibility preferences to resolve temporal scheduling conflicts in activity-based modelling. Transportation

This paper presents a novel activity-based demand model that combines an optimisation framework for continuous temporal scheduling decisions (i.e. activity timings and durations) with traditional discrete choice models for non-temporal choice dimensions (i.e. activity participation, number and type of tours, and destinations). The central idea of our approach is that individuals resolve temporal scheduling conflicts that arise from overlapping activities, e.g. needing to work and desiring to shop at the same time, in order to maximise their daily utility. Flexibility parameters capture behavioural preferences that penalise deviations from desired timings. This framework has three advantages over existing activity-based modelling approaches: (i) the time conflicts between different temporal scheduling decisions including the activity sequence are treated jointly; (ii) flexibility parameters follow a utility maximisation approach; and (iii) the framework can be used to estimate and simulate a city-scale case study in reasonable time. We introduce an estimation routine that allows flexibility parameters to be estimated using real-world observations as well as a simulation routine to efficiently resolve temporal conflicts using an optimisation model. The framework is applied to the full-time workers of a synthetic population for the city of Lausanne, Switzerland. We validate the model results against reported schedules. The results demonstrate the capabilities of our approach to reproduce empirical observations in a real-world case study.
```
@Article{MansHaerHillPougKrueBier22,
  author = {Patrick Manser and Tom Haering and Tim Hillel and Janody Pougala and Rico Krueger and Michel Bierlaire},
  title = {Estimating flexibility preferences to resolve temporal scheduling conflicts in activity-based modelling},
  journal = {Transportation},
  year = {2022},
  DOI = {10.1007/s11116-022-10330-8},
  note = {Accepted on Aug 22, 2022}}}
```
Pougala J., Hillel T., Bierlaire M. (2022). Capturing trade-offs between daily scheduling choices. Journal of Choice Modelling 43 (100354)

We propose a new modelling approach for daily activity scheduling which integrates the different daily scheduling choice dimensions (activity participation, location, schedule, duration and transportation mode) into a single optimisation problem. The fundamental behavioural principle behind our approach is that individuals schedule their day to maximise their overall derived utility from the activities they complete, according to their individual needs, constraints, and preferences. By combining mul- tiple choices into a single optimisation problem, our framework is able to capture the complex trade-offs between scheduling decisions for multiple activities. These trade-offs could include how spending longer in one activity will reduce the time- availability for other activities or how the order of activities determines the travel- times. The implemented framework takes as input a set of considered activities, with associated locations and travel modes, and uses these to produce empirical distri- butions of individual schedules from which different daily schedules can be drawn. The model is illustrated using historic trip diary data from the Swiss Mobility and Transport Microcensus. The results demonstrate the ability of the proposed frame- work to generate complex and realistic distributions of starting time and duration for different activities within the tight time constraints. The generated schedules are then compared to the aggregate distributions from the historical data to demonstrate the feasibility and flexibility of our approach.
```
@Article{PougHillBier22,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {Capturing trade-offs between daily scheduling choices},
  journal = {Journal of Choice Modelling},
  year = {2022},
  volume = {43},
  number = {100354},
  DOI = {10.1016/j.jocm.2022.100354},
  note = {Accepted on Mar 19, 2022}}}
```

2021

Ortelli N., Hillel T., Pereira F., de Lapparent M., Bierlaire M. (2021). Assisted Specification of Discrete Choice Models. Journal of Choice Modelling 39 (100285)

Determining appropriate utility specifications for discrete choice models is time-consuming and prone to errors. As the number of possible functions exponentially grows with the vari- ables under consideration, analysts need to spend increasing amounts of time on searching for good specifications through trial-and-error and expert knowledge. This paper proposes a data-driven algorithm that aims at assisting modelers in their search. Our approach trans- lates the task into a multi-objective combinatorial optimization problem and makes use of a variant of the variable neighborhood search algorithm to generate solutions. We apply the algorithm to a real mode choice dataset as a proof of concept. The results demonstrate its ability to generate high-quality specifications in reasonable amounts of time.
```
@Article{OrteHillCamadeLaBier21,
  author = {Nicola Ortelli and Tim Hillel and Francisco Pereira and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Assisted Specification of Discrete Choice Models},
  journal = {Journal of Choice Modelling},
  year = {2021},
  volume = {39},
  number = {100285},
  DOI = {10.1016/j.jocm.2021.100285},
  note = {Accepted on Mar 16, 2021}}}
```
Lederrey G., Lurkin V., Hillel T., Bierlaire M. (2021). Estimation of Discrete Choice Models with Hybrid Stochastic Adaptive Batch Size Algorithms. Journal of Choice Modelling 38 (100226)

The emergence of Big Data has enabled new research perspectives in the discrete choice community. While the techniques to estimate Machine Learning models on a massive amount of data are well established, these have not yet been fully explored for the estimation of statistical Discrete Choice Models based on the random utility framework. In this article, we provide new ways of dealing with large datasets in the context of Discrete Choice Models. We achieve this by proposing new efficient stochastic optimization algorithms and extensively testing them alongside existing approaches. We develop these algorithms based on three main contributions: the use of a stochastic Hessian, the modification of the batch size, and a change of optimization algorithm depending on the batch size. A comprehensive experimental comparison of fifteen optimization algorithms is conducted across ten benchmark Discrete Choice Model cases. The results indicate that the HAMABS algorithm, a hybrid adaptive batch size stochastic method, is the best performing algorithm across the optimization benchmarks. This algorithm speeds up the optimization time by a factor of 23 on the largest model compared to existing algorithms used in practice. The integration of the new algorithms in Discrete Choice Models estimation software will significantly reduce the time required for model estimation and therefore enable researchers and practitioners to explore new approaches for the specification of choice models.
```
@Article{LedeLurkHillBier21,
  author = {Gael Lederrey and Virginie Lurkin and Tim Hillel and Michel Bierlaire},
  title = {Estimation of Discrete Choice Models with Hybrid Stochastic Adaptive Batch Size Algorithms},
  journal = {Journal of Choice Modelling},
  year = {2021},
  volume = {38},
  number = {100226},
  DOI = {10.1016/j.jocm.2020.100226},
  note = {Accepted on May 20, 2020}}}
```
Hillel T., Bierlaire M., Elshafie M., Jin Y. (2021). A systematic review of machine learning classification methodologies for modelling passenger mode choice. Journal of Choice Modelling 38 (100221)

Machine Learning (ML) approaches are increasingly being investigated as an alternative to Random Utility Models (RUMs) for modelling passenger mode choice. These approaches have the potential to provide valuable insights into choice modelling research questions. However, the research and the methodologies used are fragmented. Whilst systematic reviews on RUMs for mode choice prediction have long existed and the methods have been well scrutinised for mode choice prediction, the same is not true for ML models. To address this need, this paper conducts a systematic review of ML methodologies for modelling passenger mode choice. The review analyses the methodologies employed within each study to (a) establish the state-of-research frameworks for ML mode choice modelling and (b) identify and quantify the prevalence of methodological limitations in previous studies. A comprehensive search methodology across the three largest online publication databases is used to identify 574 unique records. These are screened for relevance, leaving 70 peer-reviewed articles containing 73 primary studies for data extraction. The studies are reviewed in detail to extract 17 attributes covering five research questions, concerning (i) classification techniques, (ii) datasets, (iii) performance estimation, (iv) hyper-parameter selection, and (v) model analysis. The review identifies ten common methodological limitations. Five are determined to be methodological pitfalls, which are likely to introduce bias in the estimation of model performance. The remaining five are identified as areas for improvement, which may limit the achieved performance of the models considered. A further six general limitations are identified, which highlight gaps in knowledge for future work.
```
@Article{HillBierElshJin21,
  author = {Tim Hillel and Michel Bierlaire and Mohammed Elshafie and Ying Jin},
  title = {A systematic review of machine learning classification methodologies for modelling passenger mode choice},
  journal = {Journal of Choice Modelling},
  year = {2021},
  volume = {38},
  number = {100221},
  DOI = {10.1016/j.jocm.2020.100221},
  note = {Accepted on May 10, 2020}}}
```

Book chapters

2024

Bierlaire M., Frejinger E., Hillel T. (2024) Dynamic choice models. In S. Hess and A. Daly (ed) Handbook of Choice Modelling, Edward Elgar Publishing , Cheltenham, UK [ISBN 9781800375628]


@InProceedings{BierFrejHill24,
  author = {Michel Bierlaire and Emma Frejinger and Tim Hillel},
  title = {Dynamic choice models},
  year = {2024},
  booktile = {Handbook of Choice Modelling},
  editor = {S. Hess and A. Daly},
  publisher = {Edward Elgar Publishing},
  address = {Cheltenham, UK},
  pages = {568-593}}}

Technical reports

2024

Rezvany N., Hillel T., Bierlaire M. (2024). Household-level choice-set generation and parameter estimation in activity-based models. Report


@TechReport{RezHilBie2024,
  author = {Negar Rezvany and Tim Hillel and Michel Bierlaire},
  title = {Household-level choice-set generation and parameter estimation in activity-based models},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2024},
  type = {Technical Report},
  address = {Lausanne, Switzerland}}}

2023

Rezvany N., Bierlaire M., Hillel T. (2023). Simulating intra-household interactions for in- and out-of-home activity scheduling. Report


@TechReport{RezHilBie2023,
  author = {Negar Rezvany and Michel Bierlaire and Tim Hillel},
  title = {Simulating intra-household interactions for in- and out-of-home

activity scheduling},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2023},
  type = {Technical Report},
  address = {Lausanne, Switzerland}}}

2022

Pougala J., Hillel T., Bierlaire M. (2022). OASIS: Optimisation-based Activity Scheduling with Integrated Simultaneous choice dimensions. Report TRANSP-OR 221124


@TechReport{PougHillBier22,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {OASIS: Optimisation-based Activity Scheduling

with Integrated Simultaneous choice dimensions},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2022},
  type = {Technical Report},
  number = {TRANSP-OR 221124},
  address = {Lausanne, Switzerland}}}

2021

Manser P., Haering T., Hillel T., Pougala J., Krueger R., Bierlaire M. (2021). Resolving temporal scheduling conflicts in activity-based modelling. Report TRANSP-OR 211209


@TechReport{ManserEtAl2021,
  author = {Patrick Manser and Tom Haering and Tim Hillel and Janody Pougala and Rico Krueger and Michel Bierlaire},
  title = {Resolving temporal scheduling conflicts in activity-based modelling},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2021},
  type = {Technical Report},
  number = {TRANSP-OR 211209},
  address = {Lausanne, Switzerland}}}

Bierlaire M., Frejinger E., Hillel T. (2021). Dynamic choice models. Report TRANSP-OR 210305


@TechReport{BierFrejHill21,
  author = {Michel Bierlaire and Emma Frejinger and Tim Hillel},
  title = {Dynamic choice models},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2021},
  type = {Technical Report},
  number = {TRANSP-OR 210305},
  address = {Lausanne, Switzerland}}}

Pougala J., Hillel T., Bierlaire M. (2021). Capturing trade-offs between daily scheduling choices. Report TRANSP-OR 210101


@TechReport{PougHillBier21,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {Capturing trade-offs between daily scheduling choices},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2021},
  type = {Technical Report},
  number = {TRANSP-OR 210101},
  address = {Lausanne, Switzerland}}}

Xie S., Hillel T., Jin Y. (2021). An Early Stopping Bayesian Data Assimilation Approach for Mixed-Logit Estimation. Report arXiv:2101.11159


@TechReport{XieHillelJinEarly2021,
  author = {Shanshan Xie and Tim Hillel and Ying Jin},
  title = {An Early Stopping Bayesian Data Assimilation Approach for Mixed-Logit Estimation},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2021},
  type = {Technical Report},
  number = {arXiv:2101.11159},
  address = {Lausanne, Switzerland}}}

Rezvany N., Hillel T., Bierlaire M. (2021). Integrated models of transport and energy demand: A literature review and framework. Report


@TechReport{RezHilBie2021,
  author = {Negar Rezvany and Tim Hillel and Michel Bierlaire},
  title = {Integrated models of transport and energy demand: A literature review and framework},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2021},
  type = {Technical Report},
  address = {Lausanne, Switzerland}}}

2020

Ortelli N., Hillel T., Pereira F., de Lapparent M., Bierlaire M. (2020). Assisted Specification of Discrete Choice Models. Report TRANSP-OR 200708


@TechReport{OrtHilPerLapBie2020,
  author = {Nicola Ortelli and Tim Hillel and Francisco Pereira and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Assisted Specification of Discrete Choice Models},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2020},
  type = {Technical Report},
  number = {TRANSP-OR 200708},
  address = {Lausanne, Switzerland}}}

Hillel T. (2020). New perspectives on the performance of machine learning classifiers for mode-choice prediction. Report TRANSP-OR 200704


@TechReport{HillelNew2020,
  author = {Tim Hillel},
  title = {New perspectives on the performance of machine learning classifiers for mode-choice prediction},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2020},
  type = {Technical Report},
  number = {TRANSP-OR 200704},
  address = {Lausanne, Switzerland}}}

2019

Lederrey G., Lurkin V., Hillel T., Bierlaire M. (2019). Estimation of Discrete Choice Models with Hybrid Stochastic Adaptive Batch Size Algorithms. Report TRANSP-OR 191213


@TechReport{LedLurHilBie19,
  author = {Gael Lederrey and Virginie Lurkin and Tim Hillel and Michel Bierlaire},
  title = {Estimation of Discrete Choice Models with Hybrid Stochastic Adaptive Batch Size Algorithms},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2019},
  type = {Technical Report},
  number = {TRANSP-OR 191213},
  address = {Lausanne, Switzerland}}}

Hillel T., Bierlaire M., Jin Y. (2019). A systematic review of machine learning methodologies for modelling passenger mode choice. Report TRANSP-OR 191025


@TechReport{HillelBierlaireJinReview2019,
  author = {Tim Hillel and Michel Bierlaire and Ying Jin},
  title = {A systematic review of machine learning methodologies for modelling passenger mode choice},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2019},
  type = {Technical Report},
  number = {TRANSP-OR 191025},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2024

Rezvany N., Hillel T., Bierlaire M. (2024) Household-level choice-set generation and parameter estimation in activity-based models. Proceedings of the 12th symposium of the European Association for Research in Transportation (hEART), June 18-20, 2024, Espoo, Finland


@InProceedings{RezHilBie_hEART2024,
  author = {Negar Rezvany and Tim Hillel and Michel Bierlaire},
  title = {Household-level choice-set generation and parameter estimation in activity-based models},
  booktime = {Proceedings of the 12th symposium of the European Association for Research in Transportation  (hEART), June 18-20, 2024},
  year = {2024},
  address = {Espoo, Finland}}}

Rezvany N., Hillel T., Bierlaire M. (2024) Integration of group decision-mechanisms into activity-based models. Proceedings of the 17th International Conference on Travel Behavior Research (IATBR), July 14-18, 2024, Vienna, Austria


@InProceedings{RezHilBie_IATBR2024,
  author = {Negar Rezvany and Tim Hillel and Michel Bierlaire},
  title = {Integration of group decision-mechanisms into activity-based models},
  booktime = {Proceedings of the 17th International Conference on Travel Behavior Research

 (IATBR), July 14-18, 2024},
  year = {2024},
  address = {Vienna, Austria}}}

2023

Rezvany N., Hillel T., Bierlaire M. (2023) From domestic energy demand to household activity patterns. Proceedings of the 23rd Swiss Transport Research Conference (STRC)10-12 May, Ascona, Switzerland


@InProceedings{RezHilBie_STRC2023,
  author = {Negar Rezvany and Tim Hillel and Michel Bierlaire},
  title = {From domestic energy demand to household activity patterns},
  booktime = {Proceedings of the 23rd Swiss Transport Research Conference (STRC), 10-12 May},
  year = {2023},
  address = {Ascona, Switzerland}}}

Pougala J., Hillel T., Bierlaire M. (2023) From one-day to multiday activity scheduling: extending the OASIS framework. Proceedings of the 23rd Swiss Transport Research Conference (STRC), 10-12 May, Ascona, Switzerland


@InProceedings{PoHiBi_STRC2023,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {From one-day to multiday activity scheduling: extending the OASIS framework},
  booktime = {Proceedings of the 23rd Swiss Transport Research Conference (STRC), 10-12 May},
  year = {2023},
  address = {Ascona, Switzerland}}}

2022

Rezvany N., Hillel T., Bierlaire M. (2022) A utility optimization-based framework for joint in- and out-of-home scheduling. Proceedings of the 10th symposium of the European Association for Research in Transportation (hEART) (hEART), 1-3 June 2022, Leuven, Belgium


@InProceedings{RezHilBie_hEART2022,
  author = {Negar Rezvany and Tim Hillel and Michel Bierlaire},
  title = {A utility optimization-based framework for joint in- and out-of-home scheduling},
  booktime = {Proceedings of the 10th symposium of the European Association for Research in Transportation (hEART) (hEART), 1-3 June 2022},
  year = {2022},
  address = {Leuven, Belgium}}}

Pougala J., Hillel T., Bierlaire M. (2022) Parameter estimation for activity-based models. Proceedings of the 22nd Swiss Transport Research Conference (STRC), 18-20 May, Ascona, Switzerland


@InProceedings{PoHiBi_STRC2022,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {Parameter estimation for activity-based models},
  booktime = {Proceedings of the 22nd Swiss Transport Research Conference (STRC), 18-20 May},
  year = {2022},
  address = {Ascona, Switzerland}}}

Rezvany N., Hillel T., Bierlaire M. (2022) Integrated in- and out-of-home scheduling framework: A utility optimization-based approach. Proceedings of the 22nd Swiss Transport Research Conference (STRC ), 18-20 May, Ascona, Switzerland


@InProceedings{RezHilBie_STRC2022,
  author = {Negar Rezvany and Tim Hillel and Michel Bierlaire},
  title = {Integrated in- and out-of-home scheduling framework: A utility optimization-based approach},
  booktime = {Proceedings of the 22nd Swiss Transport Research Conference (STRC ), 18-20 May},
  year = {2022},
  address = {Ascona, Switzerland}}}

Salvadé N., Hillel T., Pougala J., Haering T., Bierlaire M. (2022) Representing location choice within activity-based models. Proceedings of the 22nd Swiss Transport Research Conference (STRC), 18-20 May, Ascona, Switzerland


@InProceedings{Salvade_STRC2022,
  author = {Nicolas Salvad\'e and Tim Hillel and Janody Pougala and Tom Haering and Michel Bierlaire},
  title = {Representing location choice within activity-based models},
  booktime = {Proceedings of the 22nd Swiss Transport Research Conference (STRC), 18-20 May},
  year = {2022},
  address = {Ascona, Switzerland}}}

2021


@InProceedings{Haering_STRC2021,
  author = {Tom Haering and Patrick Manser and Tim Hillel and Janody Pougala and Rico Krueger and Michel Bierlaire},
  title = {Resolving time conflicts in activity-based scheduling: A case study of Lausanne},
  booktime = {Proceedings of the 21st Swiss Transport Research Conference (STRC), 12-14 September},
  year = {2021},
  address = {Ascona, Switzerland}}}

Pougala J., Hillel T., Bierlaire M. (2021) Choice set generation for activity-based models. Proceedings of the 21st Swiss Transport Research Conference (STRC), 12-14 September, Ascona, Switzerland


@InProceedings{PoHiBi_STRC2021,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {Choice set generation for activity-based models},
  booktime = {Proceedings of the 21st Swiss Transport Research Conference (STRC), 12-14 September},
  year = {2021},
  address = {Ascona, Switzerland}}}

Rezvany N., Hillel T., Bierlaire M. (2021) Integrated models of transport and energy demand: A literature review and framework. Proceedings of the 21st Swiss Transport Research Conference (STRC ), 12-14 September, Ascona, Switzerland


@InProceedings{RezHilBie_STRC2021,
  author = {Negar Rezvany and Tim Hillel and Michel Bierlaire},
  title = {Integrated models of transport and energy demand: A literature review and framework},
  booktime = {Proceedings of the 21st Swiss Transport Research Conference (STRC ), 12-14 September},
  year = {2021},
  address = {Ascona, Switzerland}}}

2020

Hillel T., Pougala J., Manser P., Luethi R., Scherr W., Bierlaire M. (2020) Modelling mobility tool availability at a household and individual level: A case study of Switzerland. Proceedings of the 9th Symposium of the European Association for Research in Transportation (HEART), 3-4 February 2021, Lyon, France


@InProceedings{HilPouManLueSchBie_HEART2020,
  author = {Tim Hillel and Janody Pougala and Patrick Manser and Raphael Luethi and Wolfgang Scherr and Michel Bierlaire},
  title = {Modelling mobility tool availability at a household and individual level: A case study of Switzerland},
  booktime = {Proceedings of the 9th Symposium of the European Association for Research in Transportation (HEART), 3-4 February 2021},
  year = {2020},
  address = {Lyon, France}}}

Ortelli N., Hillel T., Pereira F., de Lapparent M., Bierlaire M. (2020) Variable Neighborhood Search for Assisted Utility Specification in Discrete Choice Models. Proceedings of the 9th Symposium of the European Association for Research in Transportation (HEART), 3-4 February 2021, Lyon, France


@InProceedings{OrtHilPerLapBie_HEART2020,
  author = {Nicola Ortelli and Tim Hillel and Francisco Pereira and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Variable Neighborhood Search for Assisted Utility Specification in Discrete Choice Models},
  booktime = {Proceedings of the 9th Symposium of the European Association for Research in Transportation (HEART), 3-4 February 2021},
  year = {2020},
  address = {Lyon, France}}}

Pougala J., Hillel T., Bierlaire M. (2020) An optimization framework for daily activity schedules. Proceedings of the 9th Symposium of the European Association for Research in Transportation (HEART), 3-4 February 2021, Lyon, France


@InProceedings{PouHilBie_HEART2020,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {An optimization framework for daily activity schedules},
  booktime = {Proceedings of the 9th Symposium of the European Association for Research in Transportation (HEART), 3-4 February 2021},
  year = {2020},
  address = {Lyon, France}}}

Xie S., Hillel T., Jin Y. (2020) An Early Stopping Bayesian Data Assimilation Approach for improved Mixed Multinomial Logit transferability. Proceedings of the 9th Symposium of the European Association for Research in Transportation (HEART), 3-4 February 2021, Lyon, France


@InProceedings{XieHilJin_HEART2020,
  author = {Shanshan Xie and Tim Hillel and Ying Jin},
  title = {An Early Stopping Bayesian Data Assimilation Approach for improved Mixed Multinomial Logit transferability},
  booktime = {Proceedings of the 9th Symposium of the European Association for Research in Transportation (HEART), 3-4 February 2021},
  year = {2020},
  address = {Lyon, France}}}

Pougala J., Hillel T., Bierlaire M. (2020) Scheduling of daily activities: an optimization approach. Proceedings of the 20th Swiss Transport Research Conference (STRC), 13-14 May, Ascona, Switzerland


@InProceedings{PouHilBie_STRC2020,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {Scheduling of daily activities: an optimization approach},
  booktime = {Proceedings of the 20th Swiss Transport Research Conference (STRC), 13-14 May},
  year = {2020},
  address = {Ascona, Switzerland}}}

2019

Hillel T., Jin Y., Elshafie M., Bierlaire M. (2019) Weak teachers: Assisted specification of discrete choice models using ensemble learning. Proceedings of the 8th Symposium of the European Association for Research in Transportation (HEART), 4-6 September, Budapest, Hungary


@InProceedings{HilBieElsJin_HEART2019,
  author = {Tim Hillel and Ying Jin and Mohammed Elshafie and Michel Bierlaire},
  title = {Weak teachers: Assisted specification of discrete choice models using ensemble learning},
  booktime = {Proceedings of the 8th Symposium of the European Association for Research in Transportation (HEART), 4-6 September},
  year = {2019},
  address = {Budapest, Hungary}}}

Lederrey G., Lurkin V., Hillel T., Bierlaire M. (2019) Stochastic optimization with adaptive batch size: Discrete choice models as a case study. Proceedings of the 8th Symposium of the European Association for Research in Transportation (HEART), 4-6 September, Budapest, Hungary


@InProceedings{LEDLURHILBIER_HEART19,
  author = {Gael Lederrey and Virginie Lurkin and Tim Hillel and Michel Bierlaire},
  title = {Stochastic optimization with adaptive

batch size: Discrete choice models as a case study},
  booktime = {Proceedings of the 8th Symposium of the European

Association for Research in Transportation (HEART), 4-6 September},
  year = {2019},
  address = {Budapest, Hungary}}}

Lederrey G., Lurkin V., Hillel T., Bierlaire M. (2019) Stochastic optimization with adaptive batch size: Discrete choice models as a case study. Proceedings of the 19th Swiss Transport Research Conference (STRC), 15-17 May, Ascona, Switzerland


@InProceedings{LEDLURHILBIER_STRC019,
  author = {Gael Lederrey and Virginie Lurkin and Tim Hillel and Michel Bierlaire},
  title = {Stochastic optimization with adaptive batch size: Discrete choice models as a case study},
  booktime = {Proceedings of the 19th Swiss Transport Research Conference (STRC), 15-17 May},
  year = {2019},
  address = {Ascona, Switzerland}}}

2018

Hillel T., Bierlaire M., Elshafie M., Jin Y. (2018) Validation of probabilistic classifiers. Proceedings of the 18th Swiss Transport Research Conference (STRC), 16-18 May, Ascona, Switzerland


@InProceedings{HilBieElsJin_STRC2018,
  author = {Tim Hillel and Michel Bierlaire and Mohammed Elshafie and Ying Jin},
  title = {Validation of probabilistic classifiers},
  booktime = {Proceedings of the 18th Swiss Transport Research Conference (STRC), 16-18 May},
  year = {2018},
  address = {Ascona, Switzerland}}}

Talks

2021

Hillel T., Pougala J., Bierlaire M., Manser P., Haering T., Luethi R. Modelling mobility tool availability at a household and individual level: A case study of Switzerland February 03, 2021. hEART 2020, 9th Symposium of the European Association for Research in Transportation, Lyon, France.


@Misc{Hillel2021_heart,
  author = {Tim Hillel and Janody Pougala and Michel Bierlaire and Patrick Manser and Tom Haering and Raphael Luethi},
  title = {Modelling mobility tool availability at a household and individual level: A case study of Switzerland},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Hillel2021_heart.pdf}},
  year = {2021},
  note = {Presented at hEART 2020, 9th Symposium of the European Association for Research in Transportation, Lyon, France}}}

Hillel T., Pougala J., Bierlaire M., Scherr W., Manser P. Validating disaggregate models at an aggregate scale: A case study of mobility tool ownership in Switzerland January 28, 2021. Applied Urban Modelling 2020: Modelling the New Urban World, Cambridge, UK.


@Misc{Hillel2021_AUM,
  author = {Tim Hillel and Janody Pougala and Michel Bierlaire and Wolfgang Scherr and Patrick Manser},
  title = {Validating disaggregate models at an aggregate scale: A case study of mobility tool ownership in Switzerland},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Hillel2021_AUM.pdf}},
  year = {2021},
  note = {Presented at Applied Urban Modelling 2020: Modelling the New Urban World, Cambridge, UK}}}

2019

Hillel T., Bierlaire M., Jin Y. Weak teachers: A machine learning approach for assisted specification of Discrete Choice Models September 18, 2019. Applied Urban Modelling Workshop, University of Cambridge, Cambridge, UK.


@Misc{Hillel2019_AUM,
  author = {Tim Hillel and Michel Bierlaire and Ying Jin},
  title = {Weak teachers: A machine learning approach for assisted specification of Discrete Choice Models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Hillel2019_AUM.pdf}},
  year = {2019},
  note = {Presented at Applied Urban Modelling Workshop, University of Cambridge, Cambridge, UK}}}

Hillel T., Pougala J., Bierlaire M., Manser P., Scherr W. Activity-based Travel Demand Forecasting: Extensions to the SBB Nationwide Model September 13, 2019. nextRail19, International Rail and Mobility Conference, Swiss Federal Institute of Technology - ETH Zurich, Zurich, Switzerland.


@Misc{Hillel2019_nextRail,
  author = {Tim Hillel and Janody Pougala and Michel Bierlaire and Patrick Manser and Wolfgang Scherr},
  title = {Activity-based Travel Demand Forecasting: Extensions to the SBB Nationwide Model},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Hillel2019_nextRail.pdf}},
  year = {2019},
  note = {Presented at nextRail19, International Rail and Mobility Conference, Swiss Federal Institute of Technology - ETH Zurich, Zurich, Switzerland}}}

Hillel T., Bierlaire M., Elshafie M., Jin Y. Weak teachers: Assisted specification of discrete choice models using ensemble learning September 04, 2019. hEART 2019, 8th Symposium of the European Association for Research in Transportation, Budapest University of Technology and Economics, Budapest, Hungary.


@Misc{Hillel2019_hEART,
  author = {Tim Hillel and Michel Bierlaire and Mohammed Elshafie and Ying Jin},
  title = {Weak teachers: Assisted specification of discrete choice models using ensemble learning},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Hillel2019_hEART.pdf}},
  year = {2019},
  note = {Presented at hEART 2019, 8th Symposium of the European Association for Research in Transportation, Budapest University of Technology and Economics, Budapest, Hungary}}}

Hillel T. Weak teachers: assisted specification of discrete choice models using ensemble learning algorithms April 26, 2019. Workshop on Discrete Choice Models 2019, EPFL, Lausanne, Switzerland.


@Misc{Hillel_WDCM_2019,
  author = {Tim Hillel},
  title = {

Weak teachers: assisted specification of discrete choice models using ensemble learning algorithms},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Hillel_WDCM_2019.pdf}},
  year = {2019},
  note = {Presented at Workshop on Discrete Choice Models 2019, EPFL, Lausanne, Switzerland}}}

2018

Hillel T., Bierlaire M., Elshafie M., Jin Y. A new framework for assessing classification algorithms for mode choice prediction September 05, 2018. hEART 2018, 7th Symposium of the European Association for Research in Transportation, National Technical University of Athens, Athens, Greece.


@Misc{Hillel_hEART_2018,
  author = {Tim Hillel and Michel Bierlaire and Mohammed Elshafie and Ying Jin},
  title = {A new framework for assessing classification algorithms for mode choice prediction},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Hillel_hEART_2018.pdf}},
  year = {2018},
  note = {Presented at hEART 2018, 7th Symposium of the European Association for Research in Transportation, National Technical University of Athens, Athens, Greece}}}

Hillel T., Bierlaire M., Elshafie M., Jin Y. Validation of probabilistic classifiers May 18, 2018. 18th Swiss Transport Research Conference (STRC), Monte Verità, Ascona, Switzerland.


@Misc{Hill_STRC2018,
  author = {Tim Hillel and Michel Bierlaire and Mohammed Elshafie and Ying Jin},
  title = {Validation of probabilistic classifiers},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Hill_STRC2018.pdf}},
  year = {2018},
  note = {Presented at 18th Swiss Transport Research Conference (STRC), Monte Verit\à, Ascona, Switzerland}}}

2017

Hillel T., Elshafie M., Jin Y. A comparison of classification methods for modelling urban mode choice June 22, 2017. Workshop on Discrete Choice Models 2017, EPFL, Lausanne, Switzerland.


@Misc{Hillel_WDCM_2017,
  author = {Tim Hillel and Mohammed Elshafie and Ying Jin},
  title = {A comparison of classification methods for modelling urban mode choice},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Hillel_WDCM_2017.pdf}},
  year = {2017},
  note = {Presented at Workshop on Discrete Choice Models 2017, EPFL, Lausanne, Switzerland}}}

Reviewing

Research projects

2020

Intelligent digital twins for assessing and predicting bridge road traffic demands

Road bridges are a vital part of transportation networks, forming crucial links in natural bottleneck locations and enabling the continual flow of people and goods into, out of, and across cities. However, the analysis used for design and maintenance planning of this community-critical infrastructure is typically carried out using static models and assuming generalized traffic patterns. This analysis represents only peak loading scenarios and does not reflect the spatial and temporal variations in real-world traffic loads. The resulting uncertainty in load prediction can lead to in overengineering in bridge design as well as sub-optimal maintenance planning. Furthermore, as current analysis techniques model only maximal loads, they cannot be used to predict the maintenance condition of bridges due to fatigue from repeated loading and unloading of the bridge over time. This research aims to address these limitations by developing intelligent digital twins which can simulate the response of a bridge to realistic traffic loading scenarios. These digital twin models combine two primary elements: (i) a traffic simulation model which exploits detailed traffic count and weigh-in-motion data to generate time-dependent traffic loadings, and (ii) a detailed structural model which predicts the compliance and maintenance condition of a bridge for different maximal and cyclic loading patterns. The intelligent digital twin is intended to be generalizable to any bridge or network of bridges for which relevant data exists. This will enable these models to be used within an integrated approach to study infrastructure vulnerability and multi-hazard risk management.
- Oct 01, 2020 - Apr 01, 2022
- Sponsor: School of Architecture, Civil and Environmental Engineering (ENAC), École polytechnique fédérale de Lausanne
- Principal investigator: Tim Hillel
- Project manager: Tim Hillel
Optimization of individual mobility plans to simulate future travel in Switzerland

This project, joint with Swiss Federal Railways (SBB) will develop a new activity-based modelling approach based on optimization of individual daily mobility plans. This approach will be implemented within SBB's existing nationwide model for Switzerland for investment and service planning decisions for future transportation.
- Sep 01, 2020 - Mar 01, 2022
- Sponsor: Innosuisse (Swiss Innovation Agency)
- Principal investigator: Michel Bierlaire
- Project manager: Tim Hillel
- Collaborators: Janody Pougala, Rico Krueger

2019

Activity based travel demand forecasting

This research project aims to update and improve the microscopic activity-based demand model developed and maintained by SBB. Specifically the research intends to address the following questions: 1. Ownership of mobility instruments: Which metrics and specifications can be added to the current model, in order to improve its ability to forecast mid-and long-term ownership of mobility instruments? More specifically, how can the notion of accessibility be integrated to the current model to capture more complex mode interactions? 2. Mode choice model: Can a tour-based approach be used to model mode choice? In addition, how can the processes to estimate destination and mode choice (currently nested) be combined to generate results that are consistent with observed mobility behaviors at different time horizons (short, mid, and long-term)? 3. Tour and activity generation: How can the generation of tours and activity patterns be combined to allow modelling of joint decisions?
- Mar 01, 2019 - Mar 01, 2020
- Sponsor: Swiss Federal Railways (SBB)
- Principal investigator: Michel Bierlaire
- Project manager: Tim Hillel
- Collaborator: Janody Pougala

EPFL courses

Spring 2022

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Tim Hillel, Nour Dougui
- Teaching assistants: Selin Atac, Janody Pougala, Marija Kukic, Negar Rezvany, Tom Haering

Spring 2021

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Tim Hillel, Nour Dougui
- Teaching assistants: Selin Atac, Janody Pougala, Marija Kukic, Negar Rezvany, Nicola Ortelli, Stefano Bortolomiol
- Webpage: https://transp-or.epfl.ch/courses/decisionAid2020/index.php

Spring 2020

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Tim Hillel, Nour Dougui
- Teaching assistants: Stefano Bortolomiol, Gael Lederrey, Selin Atac, Janody Pougala
- Webpage: https://transp-or.epfl.ch/courses/decisionAid2020/index.php

Fall 2019

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Tim Hillel, Meritxell Pacheco, Janody Pougala, Nicola Ortelli
- Webpage: https://moodle.epfl.ch/course/view.php?id=1001

Spring 2019

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Nikola Obrenovic, Tim Hillel
- Teaching assistants: Stefano Bortolomiol, Gael Lederrey, Selin Atac
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2019/index.php

Various lectures

2021

Bayesian Estimation; Individual Prediction.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Feb 11, 2021
- Lecturer: Rico Krueger
- Assistant: Tim Hillel
Introduction; Logit Estimation and Testing.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Feb 08, 2021
- Lecturer: Tim Hillel
- Assistant: Cloe Cortes Balcells

2019

Hybrid Choice Models.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Mar 28, 2019
- Lecturer: Yuki Oyama
- Assistant: Tim Hillel
Bayesian Estimation; Individual Prediction.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Mar 27, 2019
- Lecturer: Rico Krueger
- Assistants: Tim Hillel, Selin Atac, Meritxell Pacheco
Logit Mixtures; Combining RP and SP data.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Mar 26, 2019
- Lecturer: Meritxell Pacheco
- Assistants: Tim Hillel, Rico Krueger
Nested Logit; Aggregate Forecasting.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Mar 25, 2019
- Lecturer: Selin Atac
- Assistants: Meritxell Pacheco, Yuki Oyama, Tim Hillel
Introduction; Logit Estimation; Specification Testing.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Mar 24, 2019
- Lecturer: Tim Hillel
- Assistants: Meritxell Pacheco, Yuki Oyama, Selin Atac

PhD supervision

Janody Pougala, OASIS : An integrated optimisation framework for activity scheduling.
Gael Lederrey, Bridging the gap between model-driven and data-driven methods in the era of Big Data.
Negar Rezvany, Urban energy demand.

Master theses

2021-2022

Representing destination choice sets within activity-based models, Nicolas Salvadé (Civil Engineering)
- Supervision: Janody Pougala, Tom Haering, Tim Hillel
- External expert: Patrick Manser

2020-2021

Simulating realistic traffic flows to predict bridge loadings, Isabelle Pumford (Computer science)
- Supervision: Tim Hillel, Michel Bierlaire
- External expert: Dimitrios Papastergiou, ASTRA

2020

Generating daily activity schedules using machine learning, Sergej Gasparovich (Civil Engineering)
- Supervision: Janody Pougala, Tim Hillel, Michel Bierlaire
- External expert: Antonin Danalet

2019

Evaluation of Bootstrap methods, Jessica Hopkins (Mathematics)
- Supervision: Tim Hillel, Gael Lederrey, Michel Bierlaire
- External expert: Damon Wischik

Semester projects

2020-2021

Generating choice sets of destinations for activity based applications, Nicolas Salvadé (Civil Engineering)

Supervision: Janody Pougala, Tim Hillel, Michel Bierlaire
Understanding human mobility behavior is essential to estimate and forecast transport demand. Activity-based models (ABM) are an increasingly popular approach to integrate complex behavioral dimensions influencing mobility choices, such as habits or social interactions. A signicant challenge in ABM research is the choice set for each individual (consisting of the type of activities, the schedules, the locations and the modes to reach them), which is highly combinatorial and thus impossible to fully enumerate. This pre-study will specically investigate the choice set of locations for individuals' daily activities, guided by (but not limited to) the following research questions: (1) How can we generate a plausible set of locations for an individual to consider, for each of their activities? (2) Which attributes can be used to characterize a location or a space (e.g. opening hours, public transport level of service, job density...) ? (3) What is the required granularity or scale to yield consistent results in terms of activity-based estimation, while maintaining a computational tractability ? (4) What are the data requirements for these tasks? What methods or tools can be used to augment datasets which lack this essential information ? The objective is to develop a methodology to generate a choice set of locations, by means of theoretical and data-driven approaches. The choice of location itself is not included in the scope of this project.

Generating choice sets of transport modes for activity based applications, Benoit Pahud (Civil Engineering)

Supervision: Janody Pougala, Tim Hillel, Michel Bierlaire
Understanding human mobility behavior is essential to estimate and forecast transport demand. Activity-based models (ABM) are an increasingly popular approach to integrate complex behav- ioral dimensions influencing mobility choices, such as habits or social interactions. A signicant challenge in ABM research is the choice set for each individual (consisting of the type of activities, the schedules, the locations and the modes to reach them), which is highlycombinatorial and thus impossible to fully enumerate. This pre-study will specically investigate the choice set of transport modes for individuals' daily activities, guided by (but not limited to) the following research questions: (1) How can we generate a plausible set of modes for an individual to consider, for each of their activities? (2) What are the main determinants for including/excluding a mode in the choice set? (3) What are the data requirements for these tasks? What methods or tools can be used to augment datasets which lack this essential information? The objective is to develop a methodology to generate a choice set of modes, by means of theoretical and data-driven approaches. The mode choice itself is not included in the scope of this project.

2019-2020

Tour-based mode choice modelling, Adrien Nicolet (Civil Engineering)

Supervision: Tim Hillel, Janody Pougala, Michel Bierlaire
This project will involve working with real world trip-diary data for London and/or Switzerland to develop sequential tour-based mode-choice models (i.e. where the choice of mode for a trip-leg is dependent on the full tour). The project will involve: � Extracting tour itineraries from the trip-diary data, � Investigating different tour patterns, e.g. primary return-tours, subtours, complex multilegged tours, � Defining different tour-based mode-choice situations which are able to fully represent the tour patterns existing in the data, � Developing appropriate sequential choice models for each mode-choice situation using Discrete Choice Models and/or machine learning.This project will involve working with real world trip-diary data for London and/or Switzerland to develop sequential tour-based mode-choice models (i.e. where the choice of mode for a trip-leg is dependent on the full tour). The project will involve: -Extracting tour itineraries from the trip-diary data, -Investigating different tour patterns, e.g. primary return-tours, subtours, complex multilegged tours, -Defining different tour-based mode-choice situations which are able to fully represent the tour patterns existing in the data, -Developing appropriate sequential choice models for each mode-choice situation using Discrete Choice Models and/or machine learning.

Investigating daily activity patterns, Sergey Gasparovich (Civil Engineering)

Supervision: Janody Pougala, Tim Hillel, Michel Bierlaire
This project will involve working with real world trip-diary data for Switzerland (2015 Mobility and Transport microcensus) to investigate how people schedule activities (e.g. work, lunch, sport, shopping etc) in their day. The project will involve: -Extracting and standardising daily activity schedules from the data, including representing the activity types, locations, start times, and durations with appropriate precision and/or scale, -Establishing a metric to define the similarity (or distance) between different activity schedules, -Using unsupervised machine learning (clustering) algorithms to identify prototypical activity schedules.

2019

Demand forecasting for a novel transportation mode, Denis Steffen (Mathematics)

Supervision: Selin Atac, Tim Hillel, Michel Bierlaire
The vehicle sharing systems (VSSs) are becoming more and more popular due to both economic and environmental effects. However, these systems mainly focus on two specific types of vehicles: bicycles and cars. Recently, some other types of vehicles (e.g. light electric vehicles) with some specific properties that distinguish them from cars and bicycles are introduced for use in such kind of systems. Therefore, they lack research in each component of the framework. The aim of this project is to forecast the demand for a novel transportation mode. The student should survey different types of approaches, such as ARIMA, to forecast demand in similar systems and compare them by identifying performance measures. Since the data for this specific transportation mode does not exist yet the student will be directed to use the taxi data, which shares many properties with the system of interest.

2018

Automatic utility specification using machine learning techniques, Nicola Ortelli

Supervision: Gael Lederrey, Tim Hillel, Virginie Lurkin
The objective of this project is to help building a utility function using different Data Analysis functions. It is well known that modeler spend a lot of time creating their utility function for DCMs. The goal of this project is to build an automated procedure to generate Utility functions based on the data. The tools used are Data Analysis and Machine Learning (Decision Tree, Random Forest, Linear Regression, Clustering, etc.). The utility functions found using these tools will then be compared to standard and more advanced utility functions. Another direction that we can take is using Machine Learning to extract the possible nests for a Nested Logit Model. This direction, however, requires a deeper knowledge in Discrete Choice Modelling. We are open to the discussion concerning the available directions.

Nikola Obrenovic

Nikola Obrenovic has been a member of the laboratory from Jul 01, 2017 to Jul 31, 2019

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Nikola Obrenovic.

Journal articles

2024

Obrenovic N., Atac S., Bierlaire M. (2024). Light electric vehicle sharing systems: Functional design of a comprehensive decision making solution. Transportation Research Part A: Policy and Practice 182 (104043)

The functional design of a decision support system for a state-of-the-art vehicle sharing system (VSS) inevitably includes the selection or definition of methodologies for planning and managing the observed VSS. In this paper, our focus is on an innovative VSS that utilizes light electric vehicles. Our goal is to specify the functions of a comprehensive decision making solution for such a VSS through a qualitative and systematic literature and system analysis. To achieve this goal, we rely on the holistic VSS management framework developed in our previous research. As a result of our study, we identify possible solution methodologies or algorithms for implementing functions of the designed decision making solution, and propose the necessary adjustments for their application in the case of light electric vehicles, or note any research gap. With these findings, we provide justified guidance to practitioners in creating these solutions, with the aim of reducing development time.
```
@Article{ObreAtacBier24,
  author = {Nikola Obrenovic and Selin Atac and Michel Bierlaire},
  title = {Light electric vehicle sharing systems: Functional design of a comprehensive decision making solution},
  journal = {Transportation Research Part A: Policy and Practice},
  year = {2024},
  volume = {182},
  number = {104043},
  DOI = {10.1016/j.tra.2024.104043},
  note = {Accepted on Mar 09, 2024}}}
```

2021

Atac S., Obrenovic N., Bierlaire M. (2021). Vehicle Sharing Systems: A Review and a Holistic Management Framework. EURO Journal on Transportation and Logistics 10 (100033)

Although different vehicle sharing systems (VSSs) use different vehicle types, the management challenges and optimization problems to be solved are similar or even the same. This observation led us to create a generalized and holistic VSS management framework, which aims to be applicable to the system using any vehicle type. The framework components, their mutual relationships, and framework tasks have been identified through a thorough and systematic literature review. Furthermore, the literature is positioned in the line with the framework. Finally, the framework and systematic literature review allowed us to identify gaps in the literature, and interesting research avenues.
```
@Article{AtacObreBier21,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {Vehicle Sharing Systems: A Review and a Holistic Management Framework},
  journal = {EURO Journal on Transportation and Logistics},
  year = {2021},
  volume = {10},
  number = {100033},
  DOI = {10.1016/j.ejtl.2021.100033},
  note = {Accepted on Feb 24, 2021}}}
```

2020

Mueller F., Guerster M., Obrenovic N., Bierlaire M. (2020). Can regional railway become emission-free with recently announced vehicles? - A case study of Bavaria. European Journal of Transport and Infrastructure Research 20 (4):286-305


@Article{MuelGuerObreBier20,
  author = {Florian Mueller and Markus Guerster and Nikola Obrenovic and Michel Bierlaire},
  title = {Can regional railway become emission-free with recently announced vehicles? - A case study of Bavaria},
  journal = {European Journal of Transport and Infrastructure Research},
  year = {2020},
  volume = {20},
  number = {4},
  pages = {286-305},
  DOI = {10.18757/ejtir.2020.20.4.5439},
  note = {Accepted on Sep 01, 2020}}}

2019

Obrenovic N., Lukovic I., Ristic S. (2019). Consolidation of database check constraints. Software & Systems Modeling 18 (3):2111-2135

Independent modeling of various modules of an information system (IS), and consequently database subschemas, may result in formal or semantic conflicts between the modules being modeled. Such conflicts may cause collisions between the integrated database schema of a whole IS and the modeled subschemas. In our previous work, we have proposed criteria and algorithms for identifying and resolving such conflicts so as to provide a consolidation of database subschemas with the integrated database schema with respect to various database concepts, such as domains, relation schemes, primary key constraints and referential integrity constraints. In this paper, we propose a new approach and algorithms for identifying conflicts and testing consolidation of subschemas with the integrated database schema against check constraints. The proposed approach is based on satisfiability modulo theory (SMT) solvers. Hereby, we propose the integration of SMT solvers into our MDSD tool, aimed at supporting a database schema integration process.
```
@Article{ObrLukRis2019,
  author = {Nikola Obrenovic and Ivan Lukovic and Sonja Ristic},
  title = {Consolidation of database check constraints},
  journal = {Software \& Systems Modeling},
  year = {2019},
  volume = {18},
  number = {3},
  pages = {2111-2135},
  DOI = {10.1007/s10270-017-0637-2},
  note = {Accepted on Nov 24, 2017}}}
```

Book chapters

2023

Atac S., Obrenovic N., Bierlaire M. (2023) A General Framework to Evaluate Different Rebalancing Operations Strategies in One-Way Car Sharing Systems. In Grothe, O., Nickel, S., Rebennack, S., Stein, O. (ed) Operations Research Proceedings 2022. OR 2022., Springer [ISBN 978-3-031-24906-8]


@InProceedings{AtacObreBier,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {A General Framework to Evaluate Different Rebalancing Operations Strategies in One-Way Car Sharing Systems},
  year = {2023},
  booktile = {Operations Research Proceedings 2022. OR 2022.},
  editor = {Grothe and  O. and  Nickel and  S. and  Rebennack and  S. and  Stein and  O.},
  series = {Lecture Notes in Operations Research},
  publisher = {Springer}}}

Lalic M., Obrenovic N., Brdar S., Lukovic I., Bierlaire M. (2023) Assisting Passengers on Rerouted Train Service Using Vehicle Sharing System. In Cappanera, P., Lapucci, M., Schoen, F., Sciandrone, M., Tardella, F., Visintin, F. (ed) Optimization and Decision Science: Operations Research, Inclusion and Equity, Springer [ISBN 978-3-031-28862-3]


@InProceedings{LaliObreBrdaLukoBier23,
  author = {Maksim Lalic and Nikola Obrenovic and Sanja Brdar and Ivan Lukovic and Michel Bierlaire},
  title = {Assisting Passengers on Rerouted Train Service Using Vehicle Sharing System},
  year = {2023},
  booktile = {Optimization and Decision Science: Operations Research, Inclusion and Equity},
  editor = {Cappanera and  P. and  Lapucci and  M. and  Schoen and  F. and  Sciandrone and  M. and  Tardella and  F. and  Visintin and  F.},
  volume = {9},
  series = {AIRO Springer Series},
  publisher = {Springer},
  pages = {277-287}}}

Technical reports

2019

Mueller F., Guerster M., Obrenovic N., Bierlaire M. (2019). Can regional railway become emission-free with recently announced vehicles? - A case study of Bavaria. Report TRANSP-OR 191028


@TechReport{MuelGuerObreBier19,
  author = {Florian Mueller and Markus Guerster and Nikola Obrenovic and Michel Bierlaire},
  title = {Can regional railway become emission-free with recently announced vehicles? - A case study of Bavaria},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2019},
  type = {Technical Report},
  number = {TRANSP-OR 191028},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2022

Obrenovic N., Atac S., Bortolomiol S., Brdar S., Marko O., Crnojevic V. (2022) The crop plant scheduling problem. Proceedings of the Italian OR Days 2022 (GOR), 30 August-02 September, Florence, Italy


@InProceedings{ObrAtaBor_ItalianOR2022,
  author = {Nikola Obrenovic and Selin Atac and Stefano Bortolomiol and Sanja Brdar and Oskar Marko and Vladimir Crnojevic},
  title = {The crop plant scheduling problem},
  booktime = {Proceedings of the Italian OR Days 2022 (GOR), 30 August-02 September},
  year = {2022},
  address = {Florence, Italy}}}

Atac S., Obrenovic N., Bierlaire M. (2022) A general framework to evaluate different rebalancing operations strategies in one-way car sharing systems. Proceedings of the International Conference on Operations Research (OR 2022), 06-09 September, Karlsruhe, Germany


@InProceedings{AtaObrBie_GermanOR2022_v0,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {A general framework to evaluate different rebalancing operations strategies in one-way car sharing systems},
  booktime = {Proceedings of the  International Conference on Operations Research (OR 2022), 06-09 September},
  year = {2022},
  address = {Karlsruhe, Germany}}}

Atac S., Obrenovic N., Bierlaire M. (2022) Evaluating different strategies to solve rebalancing operations in car sharing systems. Proceedings of the 22nd Swiss Transport Research Conference (STRC), 18-20 May, Ascona, Switzerland


@InProceedings{AtaObrBie_STRC2022,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {Evaluating different strategies to solve rebalancing operations in car sharing systems},
  booktime = {Proceedings of the 22nd Swiss Transport Research Conference (STRC), 18-20 May},
  year = {2022},
  address = {Ascona, Switzerland}}}

2021

Atac S., Obrenovic N., Bierlaire M. (2021) A multi-objective approach for station clustering in bike sharing systems. Proceedings of the 21st Swiss Transport Research Conference (STRC), 12-14 September, Ascona, Switzerland


@InProceedings{AtaObrBie_STRC2021,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {A multi-objective approach for station clustering in bike sharing systems},
  booktime = {Proceedings of the 21st Swiss Transport Research Conference (STRC), 12-14 September},
  year = {2021},
  address = {Ascona, Switzerland}}}

2020

Atac S., Obrenovic N., Bierlaire M. (2020) Bike Sharing Systems: Does demand forecasting yield a better service?. Proceedings of the 9th Symposium of the European Association for Research in Transportation (hEART), 3-4 February 2021, Lyon, France


@InProceedings{AtaObrBie_hEART2020,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {Bike Sharing Systems: Does demand forecasting yield a better service?},
  booktime = {Proceedings of the 9th Symposium of the European Association for Research in Transportation (hEART), 3-4 February 2021},
  year = {2020},
  address = {Lyon, France}}}

Atac S., Obrenovic N., Bierlaire M. (2020) Vehicle sharing systems: Does demand forecasting yield a better service?. Proceedings of the 20th Swiss Transport Research Conference (STRC), 13-14 May, Ascona, Switzerland


@InProceedings{AtaObrBie_STRC2020,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {Vehicle sharing systems: Does demand forecasting yield a better service?},
  booktime = {Proceedings of the 20th Swiss Transport Research Conference (STRC), 13-14 May},
  year = {2020},
  address = {Ascona, Switzerland}}}

2019

Atac S., Obrenovic N., Bierlaire M. (2019) A holistic decision making framework for a vehicle sharing system. Proceedings of the 23rd European Conference on Advances in Databases and Information Systems (ADBIS), 08-11 September, Bled, Slovenia


@InProceedings{AtaObrBie_ADBIS2019,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {A holistic decision making framework for a vehicle sharing system},
  booktime = {Proceedings of the 23rd European Conference on Advances in Databases and Information Systems (ADBIS), 08-11 September},
  year = {2019},
  address = {Bled, Slovenia}}}

Atac S., Obrenovic N., Bierlaire M. (2019) An optimization framework for light electric vehicle sharing systems. Proceedings of the 19th Swiss Transport Research Conference (STRC), 15-17 May, Ascona, Switzerland


@InProceedings{AtaObrBie_STRC2019,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {An optimization framework for light electric vehicle sharing systems},
  booktime = {Proceedings of the 19th Swiss Transport Research Conference (STRC), 15-17 May},
  year = {2019},
  address = {Ascona, Switzerland}}}

Mueller F., Schmidt K., Guerster M., Obrenovic N., Bierlaire M. (2019) Model-based economic analysis of electrification in railway - Understanding the impact of track, operations, and uncertainties. Proceedings of the 19th Swiss Transport Research Conference (STRC 2019), May 15-17, Ascona, Switzerland


@InProceedings{Mueller_STRC2019,
  author = {Florian Mueller and Kilian Schmidt and Markus Guerster and Nikola Obrenovic and Michel Bierlaire},
  title = {Model-based economic analysis of electrification in railway - Understanding the impact of track, operations, and uncertainties},
  booktime = {Proceedings of the 19th Swiss Transport Research Conference (STRC 2019), May 15-17},
  year = {2019},
  address = {Ascona, Switzerland}}}

Talks

2022

Obrenovic N., Atac S., Bortolomiol S., Brdar S., Marko O., Crnojevic V. The crop plant scheduling problem September 02, 2022. Italian OR Days 2022 (AIRO 2022), Florence, Italy.


@Misc{Obr_ItalianOR2022,
  author = {Nikola Obrenovic and Selin Atac and Stefano Bortolomiol and Sanja Brdar and Oskar Marko and Vladimir Crnojevic},
  title = {The crop plant scheduling problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Obr_ItalianOR2022.pdf}},
  year = {2022},
  note = {Presented at Italian OR Days 2022 (AIRO 2022), Florence, Italy}}}

2019

Buschor O., Pacheco M., Bortolomiol S., Bierlaire M., Obrenovic N., Hellwig M. Railway Disruption Management with Viriato and Algorithm Platform September 13, 2019. nextRail19 - International Rail and Mobility Conference, ETH Zurich, Zurich, Switzerland.


@Misc{Obren_nextRail_2019,
  author = {Oliver Buschor and Meritxell Pacheco and Stefano Bortolomiol and Michel Bierlaire and Nikola Obrenovic and Matthias Hellwig},
  title = {Railway Disruption Management with Viriato and Algorithm Platform},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Obren_nextRail_2019.pdf}},
  year = {2019},
  note = {Presented at nextRail19 - International Rail and Mobility Conference, ETH Zurich, Zurich, Switzerland}}}

Atac S., Obrenovic N., Bierlaire M. A holistic decision making framework for a vehicle sharing system September 08, 2019. Modern Approaches in Data Engineering and Information System Design Workshop 2019, University of Maribor, Bled, Slovenia.


@Misc{Atac_MADEISD2019,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {A holistic decision making framework for a vehicle sharing system},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Atac_MADEISD2019.pdf}},
  year = {2019},
  note = {Presented at Modern Approaches in Data Engineering and Information System Design Workshop 2019, University of Maribor, Bled, Slovenia}}}

2018

Obrenovic N., Lurkin V., Bierlaire M. Network Design for SBB Cargo October 25, 2018. SBB Research Fund Meeting, SBB CFF FSS , Zurich, Switzerland.


@Misc{Obren_SBBCargo_2018,
  author = {Nikola Obrenovic and Virginie Lurkin and Michel Bierlaire},
  title = {Network Design for SBB Cargo},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Obren_SBBCargo_2018.pdf}},
  year = {2018},
  note = {Presented at SBB Research Fund Meeting, SBB CFF FSS , Zurich, Switzerland}}}

Obrenovic N., Lurkin V., Bortolomiol S., Bierlaire M. Model of the Swiss Freight Railway Network Design Problem September 06, 2018. hEART 2018, 7th Symposium of the European Association for Research in Transportation, National Technical University of Athens, Athens, Greece.


@Misc{Obrenovic_hEART_2018,
  author = {Nikola Obrenovic and Virginie Lurkin and Stefano Bortolomiol and Michel Bierlaire},
  title = {Model of the Swiss Freight Railway Network Design Problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Obrenovic_hEART_2018.pdf}},
  year = {2018},
  note = {Presented at hEART 2018, 7th Symposium of the European Association for Research in Transportation, National Technical University of Athens, Athens, Greece}}}

Obrenovic N., Lurkin V., Bierlaire M. Freight railway network design problem June 12, 2018. 16th Swiss Operations Research Days, Universität Bern, Bern, Switzerland.


@Misc{ObrenovicSwissOR18,
  author = {Nikola Obrenovic and Virginie Lurkin and Michel Bierlaire},
  title = {Freight railway network design problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/ObrenovicSwissOR18.pdf}},
  year = {2018},
  note = {Presented at 16th Swiss Operations Research Days, Universit\ät Bern, Bern, Switzerland}}}

Obrenovic N., Lurkin V., Bierlaire M. Capacity-Oriented Marshaling and Shunting Yards Location Problem June 05, 2018. Odysseus 2018 - 7th International Workshop on Freight Transportation and Logistics, University of Cagliari, Cagliari, Sardinia, Italy.


@Misc{ObrenovicOdysseus18,
  author = {Nikola Obrenovic and Virginie Lurkin and Michel Bierlaire},
  title = {Capacity-Oriented Marshaling and Shunting

Yards Location Problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/ObrenovicOdysseus18.pdf}},
  year = {2018},
  note = {Presented at Odysseus 2018 - 7th International Workshop on Freight Transportation and Logistics, University of Cagliari, Cagliari, Sardinia, Italy}}}

Reviewing

Computer Science and Information Systems (1)

Research projects

2017

Network Design for SBB Cargo

This project aims at developing an algorithm for the overall design of SBB cargo�s network of bundling points. SBB Cargo operates a network of 2 marshaling yards, 65 shunting yards and about 350 of small bundling points. The operation as such is costly and the network might contain redundant bundling points. The overall interest of SBB Cargo is to minimize the operating cost of their network and to compare its performance to a better network, completely designed from scratch. The resulting framework is then planned to be used to improve the current network of SBB cargo and its future development. The main research challenge of this project is to incorporate the SBB Cargo needs into one model while taking into account the specifics of the railway network and its operation. The researchers from the Transport and Mobility Laboratory (TRANSP-OR) will develop a heuristic algorithm that gives as an output a complete network design based on the inputs (cargo demand, capacity, types and costs of different bundling points). The algorithm can be further adjusted by entering the already existing bundling points. The effectiveness of the proposed algorithm will be tested thorough comparison with existing solutions. TRANSP-OR, led by prof. Michel Bierlaire, has a track record of successful projects of solving highly complex problems arising in industrial sector. This one-year project is sponsored by SBB-CFF-FFS.
- Sep 01, 2017 - Aug 31, 2018
- Sponsor: Swiss Federal Railways (SBB)
- Principal investigator: Michel Bierlaire
- Project managers: Nikola Obrenovic, Virginie Lurkin

2016

TRANS-FORM: Smart transfers through unravelling urban form and travel flow dynamics

TRANS-FORM, a cooperation between universities, industrial partners, public authorities and private operators, will develop, implement and test a data driven decision making tool that will support smart planning, and proactive and adaptive operations. The objective of the project is to better understand transferring dynamics in multi-modal public transport systems and develop insights, strategies and methods to support decision makers in transforming public transport usage to a seamless travel experience by using smart data. The tool will integrate new concepts and methods of behavioral modelling, passenger flow forecasting and network state predictions into real-time operations. TRANS-FORM is funded under the European Commission Horizon 2020 ERA-NET program.
- Mar 03, 2016 - Mar 03, 2019
- Sponsor: The Federal Department of the Environment, Transport, Energy and Communications (DETEC)
- Principal investigator: Michel Bierlaire
- Project managers: Shadi Sharif Azadeh, Riccardo Scarinci, Yuki Oyama
- Collaborators: Nicholas Molyneaux, Nikola Obrenovic

EPFL courses

Spring 2019

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Nikola Obrenovic, Tim Hillel
- Teaching assistants: Stefano Bortolomiol, Gael Lederrey, Selin Atac
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2019/index.php
Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Yuki Oyama, Nikola Obrenovic
- Webpage: http://transp-or.epfl.ch/courses/OptSim2019/

Fall 2018

Introduction � l'optimisation et � la recherche op�rationnelle.
- Level: Bachelor
- Sections: Mechanical Engineering, Civil Engineering, Environmental Sciences and Engineering, Electrical and Electronics Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Nikola Obrenovic, Nour Dougui, Stefano Bortolomiol, Selin Atac, Gael Lederrey
- Webpage: http://transp-or.epfl.ch/courses/optimization2018/

Spring 2018

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Virginie Lurkin, Nikola Obrenovic
- Teaching assistants: Stefano Bortolomiol, Gael Lederrey
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2018/index.php
Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Yuki Oyama, Nikola Obrenovic, Riccardo Scarinci
- Teaching assistants: Gael Lederrey, Zhengchao Wang
- Webpage: http://transp-or.epfl.ch/courses/OptSim2018/

Fall 2017

Introduction � l'optimisation et � la recherche op�rationnelle.
- Level: Bachelor
- Sections: Mechanical Engineering, Civil Engineering, Environmental Sciences and Engineering, Electrical and Electronics Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Virginie Lurkin, Gael Lederrey, Nikola Obrenovic
- Webpage: http://transp-or.epfl.ch/courses/optimization2017/

PhD supervision

Selin Atac, Demand-based mobility sharing systems.

Master theses

2019

Warehouse inventory management optimization in Rolex SA, Rym Karime (Civil Engineering)
- Supervision: Nikola Obrenovic, Selin Atac, Michel Bierlaire
- External expert: Bruno Delaborde
Heuristic algorithms to find market equilibria in oligopolies, Nicolas Pradignac (Computer science)
- Supervision: Stefano Bortolomiol, Nikola Obrenovic, Michel Bierlaire
- External expert: Olivier Gallay

2018-2019

Innovative technologies for improvement of airport accessibility with the applications to Geneva Airport, Thibaut Guillaume Marie Richard (Civil Engineering)
- Supervision: Nikola Obrenovic, Selin Atac, Michel Bierlaire
- External expert: Philippe Canal, Virginie Marche

Semester projects

2019

Disruption-caused railway timetable rescheduling problem and its solution, Oliver Mathias Buschor

Supervision: Nikola Obrenovic, Meritxell Pacheco, Michel Bierlaire
In railway networks, unexpected disruptions may occur for different reasons and cause delays, service denial, and, consequently, passenger inconvenience. This planned master project will tackle the railway timetable rescheduling problem from a macroscopic and mesoscopic point of view in case of unexpected disruptions. The master project will consider several remediation strategies such as canceling, delaying or rerouting the trains, or introduction of other transportation modes. The other important aspect of the planned master project is its applicability in practice. Hence, the outcome of the project will be the algorithm for timetable rescheduling which will be implemented in the commercial software suite Viriato. The main functionality of Viriato is the train timetabling and it is produced by the company SMA und Partner AG. In order to prepare the candidate for the master project, this pre-study project will include several introductory tasks related to the problem comprehension, solutions approach and algorithm implementation. Therefore, the tasks of this project will be: 1) review of the relevant literature, 2) demand data preprocessing with the purpose of matching infrastructure and demand data, and 3) obtaining the knowledge of the Viriato software and its Algorithm Platform which enables extension of Viriato with third party algorithms.

2018-2019

Dynamic optimization of self-service vehicles, Mohamed Detsouli (Civil Engineering)

Supervision: Stefano Bortolomiol, Nikola Obrenovic, Michel Bierlaire
This project is a pr�-�tude project that will prepare the student to working on the Master thesis. The proposed topic is related to the dynamic optimization of self-service vehicle fleets, with a possible focus on dynamic pricing.

Towards a techno-economic evaluation framework for regional train propulsion architectures, Florian Mueller

Supervision: Nour Dougui, Nikola Obrenovic, Michel Bierlaire
Railway can be the most environmental mode for land transport. However the sector faces cost challenges. Apart from main routes, tracks are often not electrified, requiring pollutive and operational expensive diesel propulsion systems. In contrary to road vehicles, there are no commercial large-scale applications of hybrid drivetrains. Furthermore, the dependencies of hybrid drivetrains on energy supplying infrastructure, like overhead wires or recharge points, has not been researched yet. In order to assess the potential of hybrid drivetrains holistically, the project Toolbox for Optimal Railway Propulsion Architectures (TORPA) has set up a framework to define drivetrain solutions, optimize them, and compare them among each other. Prior to this semester project, 58 drivetrain architectures have been defined. One of them was optimized toward the objectives of driving CO2 emissions and investment costs, on a specific use case. However, these bare results were inconclusive and expensive to compute for more than one use case. In this semester project, we downselect the number of possible architectures, outlining the currently most relevant ones. Furthermore, we include infrastructure requirements in the definition of architectures. The metric of investment cost is extended to display the full life cycle costs of architectures. The model of driving CO2 emissions is attempted to display all vehicle life cycle emissions, but left at the current state after qualitatively stating significant CO2 contributors not included in the calculation models. In order to assess the potential of the extended framework, it was required to state test cases, define tangible experiments, and prioritize them. Previously, it is researched which parameters should be chosen to be relevant for such experiments. Thereby, representative generic test tracks are conceived. We choose the question of viability of track electrification as first test case for the software framework. Thus, the currently operating vehicle architectures for diesel or full electric operation are applied. Especially the impacts of currently existing electrification infrastructure and track parameters, like distance and stop frequency, are investigated. Firstly, we imply a track with average constitution and operation. It is found, that the break even of track electrification is reached when a third of it is already electrified due to e. g. intersection with other tracks. Furthermore, we find that stop frequency is decisive for electrification break even: Tracks with shortened stop distance may be cheaper to be operated electrically, even if there is no catenary infrastructure built up yet.

2018

A solution approach for the Multicommodity Flow Problem within rail freight transportation, Nicolas Pradignac (Computer science)

Supervision: Stefano Bortolomiol, Nikola Obrenovic, Michel Bierlaire
This project aims at studying the Multicommodity Flow Problem (MFP), which has several real life applications, particularly within the transportation sector. The project has been inspired by an ongoing research project conducted by TRANSP-OR in collaboration with SBB Cargo. In the context of railway freight operations, companies have limited availability of both railway lines and trains. Therefore, they have the goal to optimize as much as possible the usage of their resources in order to minimize the cost of transporting the goods. Such optimization problem can be modelled as a MFP. This project is composed of two stages. First, the student will learn the mathematical model of the MFP, in its two variants: node-arc formulation and path-based formulation. The two variants will be coded and tested on small instances by using a Mixed-Integer Linear Programming (MILP) solver such as CPLEX. Further, the student will implement a solution method to solve larger instances of the problem, by using either an exact method (such as column generation) or a heuristic method.

Development of a heuristic algorithm for a hub location problem, Thibaut Guillaume Marie Richard

Supervision: Nikola Obrenovic, Nicholas Molyneaux, Michel Bierlaire
In railway networks, the location of marshalling and shunting yards, i.e. facilities used for sorting and consolidation of transported goods, determines the costs of cargo transport to a great extent. Hence, each railway company is highly motivated to determine the optimal location of these yards. Such task can be represented as a multi-level facility location problem or a hub location problem. The aim of this project is the development of an heuristic algorithm for solving a facility location problem with facilities split in multiple hierarchical layers. The project will be a part of a larger research project done in the cooperation with SBB. The student will start from understanding the exact mathematical model of the mentioned problem and encode it into a heuristic algorithm, e.g. a local search algorithm or VNS. Also, the student will have to solve the problem on a smaller data set using an exact method and compare the solution with the results of the heuristic algorithm. The student needs to have good programming skills (Java or some other OO language) and knowledge of mixed integer linear programming and heuristics.

Yuki Oyama

Yuki Oyama has been a member of the laboratory from Nov 16, 2016 to Nov 15, 2020

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Yuki Oyama.

Journal articles

2019

Oyama Y., Hato E. (2019). Prism-based path set restriction for solving Markovian traffic assignment problem. Transportation Research Part B: Methodological 122 :528-546

This paper deals with a main limitation of Markovian traffic assignment (MTA) models: when the network includes cyclic structures and the link costs are small enough, the fact that the MTA models assign traffic flows to all feasible paths causes computational challenges. This study addresses this issue by proposing a method of restricting path set based on the concept of choice-based prism. To achieve a prism-based path set, a novel network description and the constraints are introduced. These are flexible and compatible with the MTA operation, meaning that our method does not extinguish the mathematical and computational advantages of the MTA models. Our network description allows the expected minimum cost to take a value specific for each state, or a pair of node and choice-stage. This enables us to perform traffic assignment with a simple solution procedure, regardless of parameter setting or network structure. The numerical experiments show that our method solves the computational challenges of the MTA models and that the incorporation of the prism constraints does not increase computational effort required, or rather, it is computationally efficient even when considering the correlation among path utilities.
```
@Article{OyaHat19,
  author = {Yuki Oyama and Eiji Hato},
  title = {Prism-based path set restriction for solving Markovian traffic assignment problem},
  journal = {Transportation Research Part B: Methodological},
  year = {2019},
  volume = {122},
  pages = {528-546},
  DOI = {10.1016/j.trb.2019.02.002},
  note = {Accepted on Feb 09, 2019}}}
```

2018

Oyama Y., Hato E. (2018). Link-based measurement model to estimate route choice parameters in urban pedestrian networks. Transportation Research Part C: Emerging Technologies 93 :62-78

Passive monitoring with the Global Positioning System (GPS) is increasingly used to automatically monitor trip data. However, GPS tracking data includes measurement errors that depend on the monitoring device and network description in the model. In the case of urban pedestrian networks, such as city centers, the built environment of streets is often diverse, and this has a significant impact on the measurement. The errors cause the biased observations of route choices, and thus the parameter estimation results of route choice models are also biased. To deal with this problem of biased estimation, this study proposes a link-based route measurement model that sequentially infers links using decomposed sequences of data and estimates the link-specific variance of the GPS measurement error. We also incorporate a link-based route choice model as the prior to correct the measurement model by considering behavioral mechanism without path enumeration. Additionally, to remove the biases included in the prior information, this study proposes a structural estimation method in which the fixed point problem of behavioral parameter is solved by the iteration process. The performance of the proposed methods is examined both through a numerical example and a case study on a real pedestrian network. As the results, the methods refine the performance of the route measurement model, and the estimated parameters of a route choice model obtained by the structural estimation method are less biased and exhibit a different trend than those using the biased route choice observations. Also, the estimated variances of the GPS measurement errors are realistic.
```
@Article{OyaHat18,
  author = {Yuki Oyama and Eiji Hato},
  title = {Link-based measurement model to estimate route choice parameters in urban pedestrian networks},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2018},
  volume = {93},
  pages = {62-78},
  DOI = {10.1016/j.trc.2018.05.013},
  note = {Accepted on May 15, 2018}}}
```

2017

Oyama Y., Hato E. (2017). A discounted recursive logit model for dynamic gridlock network analysis. Transportation Research Part C: Emerging Technologies 85 :509-527

Emerging sensing technologies such as probe vehicles equipped with Global Positioning System (GPS) devices on board provide us real-time vehicle trajectories. They are helpful for the understanding of the cases that are significant but difficult to observe because of the infrequency, such as gridlock networks. On the premise of this type of emerging technology, this paper propose a sequential route choice model that describes route choice behavior, both in ordinary networks, where drivers acquire spatial knowledge of networks through their experiences, and in extraordinary networks, which are situations that drivers rarely experience, and applicable to real-time traffic simulations. In extraordinary networks, drivers do not have any experience or appropriate information. In such a context, drivers have little spatial knowledge of networks and choose routes based on dynamic decision making, which is sequential and somewhat forward-looking. In order to model these decision-making dynamics, we propose a discounted recursive logit model, which is a sequential route choice model with the discount factor of expected future utility. Through illustrative examples, we show that the discount factor reflects drivers’ decision-making dynamics, and myopic decisions can confound the network congestion level. We also estimate the parameters of the proposed model using a probe taxis’ trajectory data collected on March 4, 2011 and on March 11, 2011, when the Great East Japan Earthquake occurred in the Tokyo Metropolitan area. The results show that the discount factor has a lower value in gridlock networks than in ordinary networks.
```
@Article{OyaHat17,
  author = {Yuki Oyama and Eiji Hato},
  title = {A discounted recursive logit model for dynamic gridlock network analysis},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2017},
  volume = {85},
  pages = {509-527},
  DOI = {10.1016/j.trc.2017.10.001},
  note = {Accepted on Oct 01, 2017}}}
```

Book chapters

2020

Bierlaire M., Scarinci R., Nikolic M., Oyama Y., Molyneaux N., Wang Z. (2020) Methodologies for understanding and improving pedestrian mobility. In Ole B. Jensen, Claus Lassen, Vincent Kaufmann, Malene Freudendal-Pedersen, Ida Sofie Gøtzsche Lange (ed) Handbook of Urban Mobilities, Routledge [ISBN 9781138482197]


@InProceedings{BierScarNikoOyamMolyWang20,
  author = {Michel Bierlaire and Riccardo Scarinci and Marija Nikolic and Yuki Oyama and Nicholas Molyneaux and Zengchao Wang},
  title = {Methodologies for understanding and improving pedestrian mobility},
  year = {2020},
  booktile = {Handbook of Urban Mobilities},
  editor = {Ole B. Jensen and  Claus Lassen and  Vincent Kaufmann and  Malene Freudendal-Pedersen and  Ida Sofie G{\o}tzsche Lange},
  series = {Routledge International Handbooks},
  publisher = {Routledge}}}

Talks

2018

Oyama Y., Scarinci R., Bierlaire M. Optimal capacity location problem of parking and accelerated moving walkways to design a car-free city center September 05, 2018. hEART 2018, 7th Symposium of the European Association for Research in Transportation, National Technical University of Athens, Athens, Greece.


@Misc{Oyama_hEART_2018,
  author = {Yuki Oyama and Riccardo Scarinci and Michel Bierlaire},
  title = {Optimal capacity location problem of parking and accelerated moving walkways to design a car-free city center},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Oyama_hEART_2018.pdf}},
  year = {2018},
  note = {Presented at hEART 2018, 7th Symposium of the European Association for Research in Transportation, National Technical University of Athens, Athens, Greece}}}

2017

Oyama Y., Hato E., Scarinci R., Bierlaire M. Markov assignment for a pedestrian activity-based network design problem September 12, 2017. hEART 2017, 6th Symposium of the European Association for Research in Transportation, Israel Institute of Technology, Haifa, Israel.


@Misc{Oyama_hEART_2017,
  author = {Yuki Oyama and Eiji Hato and Riccardo Scarinci and Michel Bierlaire},
  title = {Markov assignment for a pedestrian activity-based network design problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Oyama_hEART_2017.pdf}},
  year = {2017},
  note = {Presented at hEART 2017, 6th Symposium of the European Association for Research in Transportation, Israel Institute of Technology, Haifa, Israel}}}

Awards

2018

Yuki Oyama. The EuroTechPostdoc Fellowship, The EuroTechPostdoc Programme.
The EuroTechPostdoc Programme provides international research and career development opportunities for 80 high potential doctoral graduates. It is one of the first cross-country fellowship programmes co-funded by the European Union�s Horizon 2020 programme..
Yuki Oyama. Young Researcher's Paper Award, The City Planning Institute of Japan.
The City Planning Institute of Japan awards Young Researcher's Paper Award to individuals who have recently published research articles with remarkable prospects for urban planning..

2017

Yuki Oyama. Best Dissertation Prize, The Kometani-Sasaki Fund, Institute of Systems Science Research.
The Kometani-Sasaki Fund, established by the Institute of Systems Science Research, Japan, to honor the achievements of Prof. Eiji Kometani and Prof. Tsuna Sasaki, has provided the Kometani-Sasaki Prize together with encouragement of 1,000,000 JPY for the excellent works in the field of traffic engineering and transportation planning research, since 2005..

Research projects

2018

PAM Personal Autonomous Moving platforms

In this project, Schindler and TRANSP-OR imagine a revolution of urban mobility focused on pedestrians. The Personal Autonomous Moving (PAM) platforms are similar to hoverborads or segways, and move from a point A (origin) to a point B (destination) on their own and carry the user with minimum interaction. They are a �light� mode of transport that does not require large space or infrastructural investment for the installation. This innovative mode of transport is ideal for short distance trip in large pedestrian facilities such as university campuses, larger business districts and airports as well as city centers. A great advantage is the possibility to directly access elevators with PAM platforms. This could lead to a real three-dimensional mobility taking advantage of elevators already installed in buildings. A possible deployment of this system generates several scientific and technological challenges. TRANP-OR focuses on the research questions that are related to the algorithms and mathematical models used by decision support tools needed for the planning and operation of the system.
- Nov 15, 2018 - May 14, 2019
- Sponsor: Schindler
- Principal investigator: Michel Bierlaire
- Project manager: Yuki Oyama
Design of a car-free city center: a fringe parking system with accelerated moving walkways

This project is conducted on a fellowship "The EuroTech Postdoc Programme". A car-free city center is a valuable solution for decreasing traffic congestion and CO2 emissions, and improving active mobility and quality of life. To achieve these goals, one of the biggest challenges is the relocation of parking places scattered in the inner district, which cause cruising for available parking as well as car inflows. A possible solution is a �fringe parking� system, which groups parking into a limited number of spots on the border of the district. However, this may decrease the level of accessibility moving the parking away from the final destinations. The key idea of this research is to use �accelerated moving walkway� (AMW), a novel transport system, in combination with a fringe parking system to design a car-free city center with high accessibility. The goal of the research is to propose and identify the optimal configuration of a fringe parking system with AMWs, as a solution to city centers. The main methodologies are network design optimization and traffic assignment.
- Oct 01, 2018 - Sep 30, 2020
- Sponsor: European Commission
- Principal investigator: Michel Bierlaire
- Project manager: Yuki Oyama

EPFL courses

Spring 2019

Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Yuki Oyama, Nikola Obrenovic
- Webpage: http://transp-or.epfl.ch/courses/OptSim2019/

Fall 2018

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Meritxell Pacheco, Yuki Oyama, Nicholas Molyneaux
- Webpage: http://transp-or.epfl.ch/courses/dca2018

Spring 2018

Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Yuki Oyama, Nikola Obrenovic, Riccardo Scarinci
- Teaching assistants: Gael Lederrey, Zhengchao Wang
- Webpage: http://transp-or.epfl.ch/courses/OptSim2018/

Fall 2017

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Meritxell Pacheco, Anna Fernandez Antolin, Evanthia Kazagli, Yuki Oyama
- Webpage: http://transp-or.epfl.ch/courses/dca2017

Various lectures

2019

Hybrid Choice Models.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Mar 28, 2019
- Lecturer: Yuki Oyama
- Assistant: Tim Hillel
Nested Logit; Aggregate Forecasting.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Mar 25, 2019
- Lecturer: Selin Atac
- Assistants: Meritxell Pacheco, Yuki Oyama, Tim Hillel
Introduction; Logit Estimation; Specification Testing.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Mar 24, 2019
- Lecturer: Tim Hillel
- Assistants: Meritxell Pacheco, Yuki Oyama, Selin Atac

2018

Logit Mixture; Hybrid Choice Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 14, 2018
- Lecturer: Meritxell Pacheco
- Assistants: Anna Fernandez Antolin, Yuki Oyama, Ma�lle Zimmermann
Forecasting; Combining RP & SP.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 13, 2018
- Lecturer: Meritxell Pacheco
- Assistants: Anna Fernandez Antolin, Yuki Oyama, Ma�lle Zimmermann
Specification Testing; Nested Logit.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 12, 2018
- Lecturer: Anna Fernandez Antolin
- Assistants: Meritxell Pacheco, Yuki Oyama, Ma�lle Zimmermann
Introduction; Logit Estimation.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 11, 2018
- Lecturer: Anna Fernandez Antolin
- Assistants: Meritxell Pacheco, Yuki Oyama, Ma�lle Zimmermann

Master theses

2017

Simulator for fleet of autonomous vehicles, Demotz Vincent (Computer science)
- Supervision: Riccardo Scarinci, Yuki Oyama, Michel Bierlaire
- External expert: Bastien Rojanawisut

Semester projects

2019

Location choice equilibrium - pedestrian demand analysis at EPFL campus, Tianyang Dong (Mathematics)

Supervision: Yuki Oyama, Zhengchao Wang, Michel Bierlaire
Modeling location choice is fundamental to understand travel behavior and to predict travel demand in urban spaces. Location choice models are often developed based on the discrete choice framework and allow the analyst to predict to which place (and when) an individual travels. While the location choice behavior has been studied a lot in the city scale, the literature in pedestrian facilities is relatively limited. In this project, we develop a pedestrian location choice model in the EPFL campus, using the data collected from Wi-Fi traces. We start with developing a simple location choice model and test its specications using the sample. Then the student collects additional data of population for aggregate forecasting, i.e. actual demand prediction at each location. Using this technique, we then extend the model to consider the congestion effect. This involves in a fixed point problem to achieve a Nash equilibrium, solved by the nested fixed point (NFXP) algorithm or the nested pseudo likelihood (NPL) algorithm.

Passenger satisfaction maximization under budget constraints, Tatiana Moavensadeh-Ghasnavi

Supervision: Meritxell Pacheco, Yuki Oyama, Michel Bierlaire
This project aims at characterizing a passenger satisfaction application relying on a demand-based optimization framework, which integrates discrete choice models (state-of-the-art for the mathematical modeling of the demand) n Mixed Integer Linear Programming (MILP) models, which are usually considered to address supply decisions such as the price of a service or the number of units to produce of a certain item. This formulation allows us to express passenger satisfaction directly in terms of the expected maximum utility of the future scenario, which simplifies notably the common representation relying on the consumer surplus. The objective is the maximization of the passenger satisfaction in a short-distance commuting context while accounting for different settings with respect to road tolling and investment in public transportation.

2018-2019

Formulating and solving a dial-a-ride problem, Rym Karime (Civil Engineering)

Supervision: Yuki Oyama, Nour Dougui, Michel Bierlaire
The Dial-a-Ride Problem (DARP) is a problem to design a vehicular route and schedule, given the passenger requests that are characterized by origins (pickup points) and destinations (delivery points) often with the time windows. In recent years, solving the DARP is increasingly demanded, re ecting new technologies for mobility. On-demand transportation for elderly or disabled people is a typical example of application. The project is mainly dedicated to the following specific tasks. First, the literature review will be done so that the student gets familiar with the model concepts and formulations of the DARP. The student is expected to understand the difference among several types of models, such as between static and dynamic models, or between single-vehicle and multi-vehicle models. At the same time, the solution methodologies that are relevant to each type of DARP will be investigated. Second, the student should acquire the basic skills for optimization problem. Though several exercises, she will get used to coding and using appropriate softwares for solving the problem. Given the knowledge and skills, finally, she should define a DARP for a specific example. The problem will be solved by at least two methodologies and be analyzed.

Optimal taxi charging decision given the real-time charging station and taxi states and future uncertainties, Julien Johan Haan (Section of GC), Loic Senser (Section of MTE) (Civil Engineering)

Supervision: Zhengchao Wang, Yuki Oyama, Michel Bierlaire
This project aims at optimizing the charging decision of taxi drivers. Different from conventional taxi drivers, electric taxi drivers are more influenced by their refuelling strategy. This is because the refuelling process of electric taxis is longer than conventional taxis, especially in the case that electric taxis need to wait before charging. This longer charging duration will decrease the serving time of electric taxis which will, in return, influence the profits of electric taxis. Therefore, an intelligent charging decision strategy which can help electric taxis to charge optimally (maximizing the profit of taxi) is highly desirable. To build the optimal charging decision program, we assume that a taxi will make a decision at each time step. When the taxi drivers make a decision, we assume that the taxi driver knows that, in the future hours, what are the expectation and variance of revenue during each time period (let's say 30 minutes). In addition to that, the taxi driver also knows the exact position of charging station and the chargers that are installed in the station. Besides, we also assume that the taxi driver also receives information about the availability of chargers from all stations by the time he makes a decision. Moreover, the taxi driver also has a prediction of the congestion condition of the charging station in the following hours. Based on the above assumption, the taxi drivers make his charging decision at each time step, i.e. charge or not, if charge, where, and when to charge for how much. The students who work on this project should build an optimization program which can make the charging decision for the taxi driver. This project is composed of two stages. First, the students will look into the taxi tracking data to understand the taxi request characteristics. This includes the mean and variance of a taxi running distances and revenue from served taxi demands across the taxis. After, the students will learn to come up with an optimization program which can help the taxi drivers to make the charging decision given the current states of taxis and its knowledge about the future world.

2018

Sustainable & intelligent transportation evaluation and plan, David Gunter

Supervision: Zhengchao Wang, Yuki Oyama
This project is composed of two stages. First, the student will search for and make a summary of emerging transportation technologies that are proposed in both literature and industries. After, the student will learn to come up with feasible and promising transportation systems composed of the emerging technologies, and then quantitatively evaluate the proposed systems based on travel demand simulations.

Design of a stated-preferences survey for a high-speed vacuum transportation mode, Thibaut Richard et Martí Montesinos Ferrer

Supervision: Meritxell Pacheco, Yuki Oyama, Michel Bierlaire
Since the high-speed vacuum transportation technology represents an innovative transportation mode, it is necessary to obtain data from surveys of hypothetical market/situations, the so-called stated-preferences (SP) surveys. The goal of this project is to design an SP questionnaire to evaluate the impact of this innovative transportation mode and to measure some indicators (such as the willingness-to-pay). A pilot test of the preliminary survey in a small sample will be carried out in order to evaluate the quality of the questionnaire. The main findings will be used to define the final survey that will be distributed to a representative sample of the population by a specialized company.

Virginie Lurkin

Virginie Lurkin has been a member of the laboratory from Oct 01, 2016 to Aug 31, 2018

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Virginie Lurkin.

Journal articles

Accepted for publication

Ahmed S., Fountas G., Lurkin V., Anastasopoulos P., Zhang Y., Bierlaire M., Mannering F. (to appear). The State of Urban Air Mobility Research: An Assessment of Challenges and Opportunities. IEEE Transactions on Intelligent Transportation Systems (accepted for publication on Nov 28, 2024)


@Article{AhmeFounLurkAnasZhanBierMann25,
  author = {{Sheikh Shahriar} Ahmed and Grigorios Fountas and Virginie Lurkin and Panagiotis Anastasopoulos and Yu Zhang and Michel Bierlaire and Fred Mannering},
  title = {The State of Urban Air Mobility Research: An Assessment of Challenges and Opportunities},
  journal = {IEEE Transactions on Intelligent Transportation Systems},
  year = {to appear},
  DOI = {10.1109/TITS.2024.3511453},
  note = {Accepted on Nov 28, 2024}}}

2021

Bortolomiol S., Lurkin V., Bierlaire M. (2021). Price-based regulation of oligopolistic markets under discrete choice models of demand . Transportation


@Article{BortLurkBier21b,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {Price-based regulation of oligopolistic markets under discrete choice models of demand },
  journal = {Transportation},
  year = {2021},
  DOI = {https://doi.org/10.1007/s11116-021-10217-0},
  note = {Accepted on Jul 23, 2021}}}

Bortolomiol S., Lurkin V., Bierlaire M. (2021). A simulation-based heuristic to find approximate equilibria with disaggregate demand models. Transportation Science 55 (5):1025-1045


@Article{BortLurkBier21,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {A simulation-based heuristic to find approximate equilibria with disaggregate demand models},
  journal = {Transportation Science},
  year = {2021},
  volume = {55},
  number = {5},
  pages = {1025-1045},
  DOI = {https://doi.org/10.1287/trsc.2021.1071},
  note = {Accepted on Apr 16, 2021}}}

2019

Herring J., Lurkin V., Garrow L., Clarke J., Bierlaire M. (2019). Airline customers� connection time preferences in domestic U.S. markets. Journal of Air Transport Management 79 (101688)


@Article{HerrLurkGarrClarBier19,
  author = {Jordan Herring and Virginie Lurkin and Laurie Garrow and John-Paul Clarke and Michel Bierlaire},
  title = {Airline customers{\textquoteright} connection time preferences in domestic U.S. markets},
  journal = {Journal of Air Transport Management},
  year = {2019},
  volume = {79},
  number = {101688},
  DOI = {10.1016/j.jairtraman.2019.101688},
  note = {Accepted on Jun 28, 2019}}}

2018

Lurkin V., Garrow L., Higgins M., Newman J., Schyns M. (2018). Modeling Competition among Airline Itineraries. Transportation Research Part A: Policy and Practice 113 ():157-172


@Article{LuGarHinNewSc18,
  author = {Virginie Lurkin and Laurie Garrow and Matthew Higgins and Jeffrey Newman and Michael Schyns},
  title = {Modeling Competition among Airline Itineraries},
  journal = {Transportation Research Part A: Policy and Practice},
  year = {2018},
  volume = {113},
  pages = {157-172},
  note = {Accepted on Apr 03, 2018}}}

2017

Newman J., Lurkin V., Garrow L. (2017). Computational Methods for Estimating Multinomial, Nested, and Cross-Nested Logit Models that Account for Semi-Aggregate Data. Journal of Choice Modelling 26 :28-40


@Article{NewLurGar17,
  author = {Jeffrey Newman and Virginie Lurkin and Laurie Garrow},
  title = {Computational Methods for Estimating Multinomial, Nested, and Cross-Nested Logit Models that Account for Semi-Aggregate Data},
  journal = {Journal of Choice Modelling},
  year = {2017},
  volume = {26},
  pages = {28-40},
  note = {Accepted on Nov 02, 2017}}}

Lurkin V., Garrow L., Higgins M., Newman J., Schyns M. (2017). Accounting for Price Endogeneity in Airline Itinerary Choice Models: An Application to Continental U.S. Markets. Transportation Research Part A: Policy and Practice 100 :228-246


@Article{LuGarHinNewSc17,
  author = {Virginie Lurkin and Laurie Garrow and Matthew Higgins and Jeffrey Newman and Michael Schyns},
  title = {Accounting for Price Endogeneity in Airline Itinerary Choice Models: An Application to Continental U.S. Markets},
  journal = {Transportation Research Part A: Policy and Practice},
  year = {2017},
  volume = {100},
  pages = {228-246},
  DOI = {10.1016/j.tra.2017.04.007},
  note = {Accepted on Apr 03, 2017}}}

Book chapters

2017

Bierlaire M., Lurkin V. (2017) Introduction to Disaggregate Demand Models. In R. Batta and J. Peng (ed) Tutorials in Operations Research Leading Developments from INFORMS Communities, Institute for Operations Research and the Management Sciences (INFORMS) [ISBN 978-0-9906153-0-9]


@InProceedings{BierLurk17,
  author = {Michel Bierlaire and Virginie Lurkin},
  title = {Introduction to Disaggregate Demand Models},
  year = {2017},
  booktile = {Tutorials in Operations Research

Leading Developments from INFORMS Communities},
  editor = {R. Batta and J. Peng},
  series = {Tutorials in Operations Research},
  publisher = { Institute for Operations Research and the

Management Sciences (INFORMS)},
  pages = {48-67}}}

Technical reports

2021

Bortolomiol S., Lurkin V., Bierlaire M. (2021). Price-based regulation of oligopolistic markets under discrete choice models of demand. Report TRANSP-OR 210127


@TechReport{BorLurBie2021,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {Price-based regulation of oligopolistic markets under discrete choice models of demand},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2021},
  type = {Technical Report},
  number = {TRANSP-OR 210127},
  address = {Lausanne, Switzerland}}}

2019

Bortolomiol S., Lurkin V., Bierlaire M. (2019). A disaggregate choice-based approach to find epsilon-equilibria of oligopolistic markets. Report TRANSP-OR 191107


@TechReport{BorLurBie2019,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {A disaggregate choice-based approach to find epsilon-equilibria of oligopolistic markets},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2019},
  type = {Technical Report},
  number = {TRANSP-OR 191107},
  address = {Lausanne, Switzerland}}}

2017

Bierlaire M., Lurkin V. (2017). Introduction to disaggregate demand models. Report TRANSP-OR 170508


@TechReport{BieLur2017,
  author = {Michel Bierlaire and Virginie Lurkin},
  title = {Introduction to disaggregate demand models},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2017},
  type = {Technical Report},
  number = {TRANSP-OR 170508},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2021


@InProceedings{BorLurBieBon_STRC2021,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {Benders decomposition for choice-based optimization problems with discrete upper-level variables},
  booktime = {Proceedings of the 21st Swiss Transport Research Conference (STRC), 12-14 September},
  year = {2021},
  address = {, }}}

2020

Bortolomiol S., Lurkin V., Bierlaire M. (2020) Optimal regulation of oligopolistic markets under discrete choice models of demand. Proceedings of the 20th Swiss Transport Research Conference (STRC), 13-15 May, ,


@InProceedings{BorLurBie_STRC2020,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {Optimal regulation of oligopolistic markets under discrete choice models of demand},
  booktime = {Proceedings of the 20th Swiss Transport Research Conference (STRC), 13-15 May},
  year = {2020},
  address = {, }}}

2019


@InProceedings{LEDLURHILBIER_HEART19,
  author = {Gael Lederrey and Virginie Lurkin and Tim Hillel and Michel Bierlaire},
  title = {Stochastic optimization with adaptive

batch size: Discrete choice models as a case study},
  booktime = {Proceedings of the 8th Symposium of the European

Association for Research in Transportation (HEART), 4-6 September},
  year = {2019},
  address = {Budapest, Hungary}}}

Bortolomiol S., Lurkin V., Bierlaire M. (2019) A demand-based optimization approach to find market equilibria in oligopolies. Proceedings of the 19th Swiss Transport Research Conference (STRC), 15-17 May, Ascona, Switzerland


@InProceedings{BorLurBie_STRC2019,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {A demand-based optimization approach to find market equilibria in oligopolies},
  booktime = {Proceedings of the 19th Swiss Transport Research Conference (STRC), 15-17 May},
  year = {2019},
  address = {Ascona, Switzerland}}}


@InProceedings{LEDLURHILBIER_STRC019,
  author = {Gael Lederrey and Virginie Lurkin and Tim Hillel and Michel Bierlaire},
  title = {Stochastic optimization with adaptive batch size: Discrete choice models as a case study},
  booktime = {Proceedings of the 19th Swiss Transport Research Conference (STRC), 15-17 May},
  year = {2019},
  address = {Ascona, Switzerland}}}

2018

Lederrey G., Lurkin V., Bierlaire M. (2018) SNM: Stochastic Newton Method for Optimization of Discrete Choice Models . Proceedings of the 21st IEEE International Conference on Intelligent Transportation Systems (IEEE ITSC'18), 4-7 November, Maui, Hawaii


@InProceedings{LedLurBiel_IEEE2018,
  author = {Gael Lederrey and Virginie Lurkin and Michel Bierlaire},
  title = {SNM: Stochastic Newton Method for Optimization of Discrete Choice Models },
  booktime = {Proceedings of the 21st IEEE International Conference on Intelligent Transportation Systems (IEEE  ITSC'18), 4-7 November},
  year = {2018},
  address = {Maui, Hawaii}}}

Bortolomiol S., Lurkin V., Bierlaire M. (2018) Modelling competition in demand-based optimization models. Proceedings of the 18th Swiss Transport Research Conference (STRC), 16-18 May, Ascona, Switzerland


@InProceedings{BorLurBie_STRC2018,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {Modelling competition in demand-based optimization models},
  booktime = {Proceedings of the 18th Swiss Transport Research Conference (STRC), 16-18 May},
  year = {2018},
  address = {Ascona, Switzerland}}}

Pacheco M., Gendron B., Lurkin V., Sharif Azadeh S., Bierlaire M. (2018) A Lagrangian relaxation technique for the demand-based benefit maximization problem. Proceedings of the 18th Swiss Transport Research Conference (STRC), 16-18 May, Ascona, Switzerland


@InProceedings{PacGenLurShaBie_STRC2018,
  author = {Meritxell Pacheco and Bernard Gendron and Virginie Lurkin and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {A Lagrangian relaxation technique for the demand-based benefit maximization problem},
  booktime = {Proceedings of the 18th Swiss Transport Research Conference (STRC), 16-18 May},
  year = {2018},
  address = {Ascona, Switzerland}}}

2017

Fernandez-Antolin A., Lurkin V., de Lapparent M., Bierlaire M. (2017) Discrete-continuous maximum likelihood for the estimation of nested logit models. Proceedings of the 16th Swiss Transport Research Conference (STRC), 17-19 May, Ascona, Switzerland


@InProceedings{FerLurLapBie_STRC2017,
  author = {Anna Fernandez-Antolin and Virginie Lurkin and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Discrete-continuous maximum likelihood for the estimation of nested logit models},
  booktime = {Proceedings of the 16th Swiss Transport Research Conference (STRC), 17-19 May},
  year = {2017},
  address = {Ascona, Switzerland}}}

Talks

2018

Lurkin V., Fernandez-Antolin A., Bierlaire M. Discrete-continuous maximum likelihood estimation July 16, 2018. 15th International Conference on Travel Behavior Research , , Santa Barbara, CA, USA.


@Misc{Lurkin_iatbr18,
  author = {Virginie Lurkin and Anna Fernandez-Antolin and Michel Bierlaire},
  title = {Discrete-continuous maximum likelihood estimation},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Lurkin_iatbr18.pdf}},
  year = {2018},
  note = {Presented at 15th International Conference on Travel Behavior Research , , Santa Barbara, CA, USA}}}

Lurkin V. Towards People-oriented Mobility (PoM) February 05, 2018. Operations Planning And Control Group Seminar, , Eindhoven, The Netherlands.


@Misc{Lurkin_eindhoven18,
  author = {Virginie Lurkin},
  title = {Towards People-oriented Mobility (PoM)},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Lurkin_eindhoven18.pdf}},
  year = {2018},
  note = {Presented at Operations Planning And Control Group Seminar, , Eindhoven, The Netherlands}}}

Lurkin V., Zanarini A., Bierlaire M. Planning of feeding station installment and battery sizing for an electric urban bus network February 02, 2018. ORBEL 32 Conference, , Liège, Belgium.


@Misc{Lurkin_orbel18,
  author = {Virginie Lurkin and Alessandro Zanarini and Michel Bierlaire},
  title = {Planning of feeding station installment

and battery sizing for an electric

urban bus network},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Lurkin_orbel18.pdf}},
  year = {2018},
  note = {Presented at ORBEL 32 Conference, , Li\ège, Belgium}}}

2017

Lurkin V., Garrow L., Newman J., Bierlaire M. Capturing how individuals filter and screen alternatives for discrete choice modeling applications October 24, 2017. 2017 INFORMS Annual Meeting, , Houston, USA.


@Misc{Lurkin_informs2017,
  author = {Virginie Lurkin and Laurie Garrow and Jeffrey Newman and Michel Bierlaire},
  title = {Capturing how individuals filter and screen alternatives for discrete choice modeling applications},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Lurkin_informs2017.pdf}},
  year = {2017},
  note = {Presented at 2017 INFORMS Annual Meeting, , Houston, USA}}}

Lurkin V., Garrow L. Modeling Competition among Airline Itineraries September 13, 2017. 6th Symposium of the European Association for Research in Transportation, Faculty of Civil and Environmental Engineering, Technion, Haifa, Israel.


@Misc{Lurkin_hEART2017,
  author = {Virginie Lurkin and Laurie Garrow},
  title = {Modeling Competition among Airline Itineraries},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Lurkin_hEART2017.pdf}},
  year = {2017},
  note = {Presented at 6th Symposium of the European Association for Research in Transportation, Faculty of Civil and Environmental Engineering, Technion, Haifa, Israel}}}

Lurkin V., Sharif Azadeh S., Maknoon Y., Bierlaire M. Planning of feeding station installment for a full electric large capacity urban bus system July 20, 2017. 21st IFORS Conference, , Quebec, Canada.


@Misc{Lurkin_IFORS2017,
  author = {Virginie Lurkin and Shadi {Sharif Azadeh} and Yousef Maknoon and Michel Bierlaire},
  title = {Planning of feeding station installment

for a full electric large capacity urban bus system},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Lurkin_IFORS2017.pdf}},
  year = {2017},
  note = {Presented at 21st IFORS Conference, , Quebec, Canada}}}

Lurkin V., Garrow L. Using non-traditional data sources to understand travel behavior June 23, 2017. 12th Workshop on Discrete Choice Models, EPFL, Lausanne, Switzerland.


@Misc{Lurkin_DCAws_2017,
  author = {Virginie Lurkin and Laurie Garrow},
  title = {Using non-traditional data sources

to understand travel behavior},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Lurkin_DCAws_2017.pdf}},
  year = {2017},
  note = {Presented at 12th Workshop on Discrete Choice Models, EPFL, Lausanne, Switzerland}}}

Lurkin V., Pacheco M., Sharif Azadeh S., Bierlaire M., Gendron B. A New Approach to Choice-Based Revenue Management May 17, 2017. AGIFORS RM Group Meeting, , San Francisco, United States.


@Misc{Lurkin_AGIFORSRM17,
  author = {Virginie Lurkin and Meritxell Pacheco and Shadi {Sharif Azadeh} and Michel Bierlaire and Bernard Gendron},
  title = {A New Approach to Choice-Based

Revenue Management},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Lurkin_AGIFORSRM17.pdf}},
  year = {2017},
  note = {Presented at AGIFORS RM Group Meeting, , San Francisco, United States}}}

Lurkin V., Garrow L., Higgins M., Newman J., Schyns M. Estimation of Airline Itinerary Choice Models Using Disaggregate Ticket Data May 16, 2017. AGIFORS SSP Group Meeting, , San Francisco, United States.


@Misc{Lurkin_AGIFORSSSP17,
  author = {Virginie Lurkin and Laurie Garrow and Matthew Higgins and Jeffrey Newman and Michael Schyns},
  title = {Estimation of Airline Itinerary Choice Models Using Disaggregate Ticket Data},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Lurkin_AGIFORSSSP17.pdf}},
  year = {2017},
  note = {Presented at AGIFORS SSP Group Meeting, , San Francisco, United States}}}

2016

Lurkin V. Modeling in Air Transportation: Cargo Loading and Itinerary Choice November 14, 2016. 2016 INFORMS Annual Meeting - Aviation Applications Dissertation Prize, , Nashville, United States.


@Misc{Lurkin_INFORMS2016,
  author = {Virginie Lurkin},
  title = {Modeling in Air Transportation:

Cargo Loading and Itinerary Choice},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Lurkin_INFORMS2016.pdf}},
  year = {2016},
  note = {Presented at 2016 INFORMS Annual Meeting - Aviation Applications Dissertation Prize, , Nashville, United States}}}

Awards

2018

Virginie Lurkin. ENAC Polysphère 2018, EPFL.
Every year, during the Graduation Ceremony, the students honour the best teacher of each school with an award called "Polysph�re". This prize is the greatest award a professor can receive directly from students at EPFL. .

2017

Virginie Lurkin. Best Presentation Award at AGIFORS Scheduling and Strategic Planning Study Group meeting , The Airline Group of the International Federation of Operational Research Societies (AGIFORS) .
The Airline Group of the International Federation of Operational Research Societies (AGIFORS) is a professional society dedicated to the advancement and application of Operational Research within the airline industry. The membership consists of Operational Research professional employed by recognized civil airlines and related industries and correspondents keenly interested in the application of Operational Research to aviation problems..

2016

Virginie Lurkin. Best Dissertation Prize, The Aviation Applications Section of INFORMS.
The Aviation Applications Section of INFORMS awards a prize for the best dissertation in any area related to aviation OR (air traffic management OR and airline OR)..

Reviewing

Research projects

2017

Incorporating competitors' behavior in demand based optimization models

The starting point of this research project is the general framework developed in the SNF research project 200021_165636 entitled �Incorporating advanced behavioral models in mixed integer linear optimization�. The project aims at formulating explicitly the complex interaction between the supply and demand actors. We hypothesize that the decisions of supply actors (such as capacity, assortment, and price) are highly influenced by the decisions of other actors, through competition within the market. In this project, we will therefore explicitly consider multiple operators that compete for the same pool of customers. Each operator will take the supply-side decisions that optimize its performance function (e.g., maximization of revenue). Non-cooperative game theory is commonly used to model such oligopolistic competition. We plan to investigate how to integrate these games in the already developed framework. In this context, the objective will be to analyze the concept of equilibrium, that is, stationary states of the system where no actor has an incentive to change his/her decisions.
- Nov 01, 2017 - Oct 31, 2020
- Sponsor: Swiss National Science Foundation
- Principal investigator: Michel Bierlaire
- Project manager: Virginie Lurkin
- Collaborator: Stefano Bortolomiol
Cost reduction using passenger centric timetabling

To design their timetables, train-operating companies mostly focus on operational aspects and cost. In Switzerland, a paradigm of transportation planning is to create regular-interval timetables (a.k.a. cyclic timetables) which aim for maximal transfer connections, simplicity and hence user friendlyness. SBB uses travel simulation models to predict the impact of timetable changes on travel demand and revenue. Mathematical timetable optimization methods are not yet used by SBB. But a recent EPFL thesis (2016) shows that the timetable itself has a significant impact on the performance of the operator in terms of the number of transported passengers: a timetable design that considers the behavior of passengers leads to higher revenue(s), market share(s), higher value of passenger-km etc. In this project, the aim is to use the optimization methods developed by the TRANSP-OR Lab consisting in combining cyclic and non-cyclic timetables and apply it to the Swiss Federal Railways� timetable design. The goal is to evaluate the performance of the current Swiss interval timetable and to compare it to the optimal one. Suitability of hybrid timetables for the Swiss railway network will be investigated. This one-year project is carried out by the Transport and Mobility Laboratory, led by prof. Michel Bierlaire. TRANSP-OR has vast competence in modeling, optimization and simulation of transportation systems. The project is sponsored by SBB CFF FFS.
- Sep 01, 2017 - Aug 31, 2018
- Sponsor: Swiss Federal Railways (SBB)
- Principal investigator: Michel Bierlaire
- Project manager: Virginie Lurkin

EPFL courses

Fall 2021

Introduction to optimization and operations research .
- Level: Bachelor
- Sections: Mechanical Engineering, Civil Engineering, Environmental Sciences and Engineering, Electrical and Electronics Engineering
- Lecturer: Virginie Lurkin
- Teaching assistants: Nour Dougui, Negar Rezvany, Nicholas Molyneaux, Gael Lederrey, Marija Kukic, Tom Haering, Stefano Bortolomiol, Cloe Cortes Balcells
Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Virginie Lurkin
- Teaching assistants: Melvin Wong, Silvia Varotto, Nicola Ortelli, Janody Pougala, Rico Krueger, Tim Hillel
- Webpage: https://moodle.epfl.ch/course/view.php?id=1001

Spring 2018

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Virginie Lurkin, Nikola Obrenovic
- Teaching assistants: Stefano Bortolomiol, Gael Lederrey
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2018/index.php

Fall 2017

Introduction � l'optimisation et � la recherche op�rationnelle.
- Level: Bachelor
- Sections: Mechanical Engineering, Civil Engineering, Environmental Sciences and Engineering, Electrical and Electronics Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Virginie Lurkin, Gael Lederrey, Nikola Obrenovic
- Webpage: http://transp-or.epfl.ch/courses/optimization2017/

Spring 2017

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Virginie Lurkin, Mor Kaspi
- Teaching assistants: Tom�s Robenek, Stefan Binder, Iliya Markov, Meritxell Pacheco
- Webpage: http://moodle.epfl.ch/enrol/index.php?id=15132

Master theses

2017

Demand based rolling stock allocation, Salma Deruiche (Civil Engineering)
- Supervision: Virginie Lurkin, Stefan Binder, Michel Bierlaire
- External expert: Simon Landureau
Passenger's Connection Time Preferences in Airline Itinerary Choice, Elisabeth Zbinden (Civil Engineering)
- Supervision: Virginie Lurkin, Matthieu de Lapparent, Michel Bierlaire
- External expert: Laurie Garrow

Semester projects

2018

Cost Reduction Uisng Passenger Centric Timetabling, Robert Abboud (Management of Technology and Financial Engineering)

Supervision: Virginie Lurkin, Michel Bierlaire
"To design their timetables, train-operating companies mostly focus on operational aspects and cost. In Switzerland, a paradigm of transportation planning is to create regular-interval timetables (a.k.a. cyclic timetables) which aim for maximal transfer connections, simplicity and hence user friendlyness. SBB uses travel simulation models to predict the impact of timetable changes on travel demand and revenue. Mathematical timetable optimization methods are not yet used by SBB. But a recent EPFL thesis (2016) shows that the timetable itself has a significant impact on the performance of the operator in terms of the number of transported passengers: a timetable design that considers the behavior of passengers leads to higher revenue(s), market share(s), higher value of passenger-km etc. In this project, the aim is to use the optimization methods developed by the TRANSP-OR Lab consisting in combining cyclic and non-cyclic timetables and apply it to the Swiss Federal Railways� timetable design. The goal is to evaluate the performance of the current Swiss interval timetable and to compare it to the optimal one. Suitability of hybrid timetables for the Swiss railway network will be investigated".

Modelling competition in demand-based optimization models, Charlotte Darné (Mathematics)

Supervision: Stefano Bortolomiol, Virginie Lurkin, Michel Bierlaire
The project aims at studying and understanding the interactions between supply and demand in an oligopolistic market, in which multiple operators compete for the same pool of customers. This is a common situation in the transportation sector as well as in other markets. Operators take the supply-side decisions that optimize their own performance function (e.g. maximization of revenues or profits). Such decisions are influenced both by the decisions of their competitors and by the preferences of the customers who consider purchasing one of the services offered on the market. The latter ones are modelled at a disaggregate level according to the random utility theory. The starting point of the project is a recent modelling framework that allows to include any random utility model in a mixed integer optimization formulation. In this framework, a single operator exploits its knowledge of the demand to maximize its objective function, while assuming that the decisions of its competitors are held fixed. The goal of this project is to extend the existing framework by including the case in which two operators simultaneously optimize their decisions. Such problem falls into the category of competitive games called two-player non-cooperative games. The student will refer to the concept of Nash equilibrium to answer questions such as "how does competition affect prices?", "what products should each competitor offer and in which quantity?", "should two competitors fight to attract the same group of customers or should they each target a different market segment?", among others.

Automatic utility specification using machine learning techniques, Nicola Ortelli

Supervision: Gael Lederrey, Tim Hillel, Virginie Lurkin
The objective of this project is to help building a utility function using different Data Analysis functions. It is well known that modeler spend a lot of time creating their utility function for DCMs. The goal of this project is to build an automated procedure to generate Utility functions based on the data. The tools used are Data Analysis and Machine Learning (Decision Tree, Random Forest, Linear Regression, Clustering, etc.). The utility functions found using these tools will then be compared to standard and more advanced utility functions. Another direction that we can take is using Machine Learning to extract the possible nests for a Nested Logit Model. This direction, however, requires a deeper knowledge in Discrete Choice Modelling. We are open to the discussion concerning the available directions.

2017-2018

On the optimization of CAPEX and OPEX for the design of a full electric large capacity urban bus system, Guillaume Mollard (Computational science and engineering)

Supervision: Virginie Lurkin, Stefan Binder, Michel Bierlaire
During the last few decades, environmental impact of the fossil fuel-based transportation infrastructure has led to renewed interest in electric transportation infrastructure, especially in urban public mass-transportation sector. The deployment of battery-powered electric bus systems within the public transportation sector plays an important role to increase energy efficiency and to abate emissions. RAn efficient feeding stations installation and an appropriate dimensioning of battery capacity are crucial to minimize the total cost of ownership for the citywide bus transportation net- work. The objective of this project is to extend an existing optimization model to the multiple lines case and to come up with an objective function that better reflect the real costs incurred by the operator. The objective function should include Capital Expenditures (CAPEX) and Operational Expenditures (OPEX). For the multiple line case, the central issue is to deal with the feeding stations that are shared among different lines.

2017

Planning of feeding station installment for a full electric large capacity urban bus system, Adrien Ruault (Computer science)

Supervision: Virginie Lurkin, Marija Nikolic, Michel Bierlaire
The integration of customer behavioural models in optimization provides a better understanding of the preferences of clients (the demand) to policy makers while planning for their systems (the supply). These preferences are formalized with discrete choice models, and the corresponding optimization models where supply and demand closely interact are associated with (mixed) integer optimization problems. One concrete application of this integration consists of an operator selling services to a market, each service at a given price to a finite number of customers, called the capacity of the service. We are interested in finding the best strategy in terms of pricing and capacity allocation in order to maximize the revenues of the operator. The project objectives can be tailored for both Master or Semester project students.

Speed profile of an innovative catenary-free electric bus, Valentin Axel Olivier & Nicolet Adrien (Civil Engineering)

Supervision: Riccardo Scarinci, Virginie Lurkin, Michel Bierlaire
The TOSA bus system is a revolutionary catenary-free electric bus concept that includes small short-range on-board batteries and a series of fully automated fast charging stations installed at some bus stops. The automatic fast-charging stations partially replenish the bus batteries in a few seconds whenever a bus arrives at the bus stops, while avoiding any interference with the bus schedules and operations. This system has been defined during the project myTOSA 1.0 and implemented in a pilot test in the city of Geneva in 2013. The project myTOSA 1.0 is currently extended by the project myTOSA 2.0. myTOSA 2.0 is composed of several modules, the most relevant for this semester project is the traffic simulation. The traffic simulation represents the movement of the buses in a network, and requires a representation of the infrastructure as an input. This project aims to define the typical speed profile of an electric bus moving in an urban network. The speed profile includes acceleration and deceleration patters for different driver behaviour, network configurations and traffic levels. The influence of traffic lights, bus priority, roundabouts on the speed profile should be investigated. The first step to achieve this aim is to define the probability distribution of the number of intersections crossed by the bus. This step is necessary to complete this project successfully. Further steps in the directions of the definition of the speed profile are considerate optional. Methodologies from transportation modelling, geographical information system (GIS) and programming (MATLAB) will be used for completing this project.

2016

Passengers' connection time preferences in airline itinerary choice, Elisabeth Zbinden (Civil Engineering)

Supervision: Virginie Lurkin, Matthieu de Lapparent, Michel Bierlaire
As noted by Theis et al. (2006), "Network airlines traditionally attempt to minimize passenger connecting times at hub airports, assuming that passengers prefer minimum scheduled elapsed time for their trips. However, minimizing connecting times creates schedule peaks at hub airports. These peaks are extremely cost-intensive in terms of additional personnel, resources, runway capacity, and schedule recovery. Consequently, passenger connecting times should be minimized only if the anticipated revenue gain of minimizing passenger connection times is larger than the increase." Prior work has used (small) stated preference surveys to estimate customers' connection time preferences, and explicitly whether this function is nonlinear with connection time (i.e., customers avoid very short connections and very long connections). However, little is known as to how these connection time preferences vary as a function of other characteristics, including flight frequency (or schedule delay), length of haul, whether the flight is the last flight of the day, prior on-time performance of flight legs. As part of this project, the student will estimate airline itinerary choice models using a large ticketing database provided by the Airlines Reporting Corporation (ARC). The student will build off of prior MNL models that have been estimated which have corrected for price endogeneity and focus explicitly on refining the utility function related to connection time preferences.

Pricing and capacity allocation strategies for a demand-based revenues maximization problem, Jonathan Lachkar (Civil Engineering)

Supervision: Meritxell Pacheco, Virginie Lurkin, Michel Bierlaire
The integration of customer behavioural models in optimization provides a better understanding of the preferences of clients (the demand) to policy makers while planning for their systems (the supply). These preferences are formalized with discrete choice models, and the corresponding optimization models where supply and demand closely interact are associated with (mixed) integer optimization problems. One concrete application of this integration consists of an operator selling services to a market, each service at a given price to a finite number of customers, called the capacity of the service. We are interested in finding the best strategy in terms of pricing and capacity allocation in order to maximize the revenues of the operator. The project objectives can be tailored for both Master or Semester project students.

Online courses

Bierlaire M., Lurkin V. (2018) Introduction to choice models. edX

Matthieu de Lapparent

Matthieu de Lapparent has been a member of the laboratory from Oct 01, 2014 to May 31, 2017

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Matthieu de Lapparent.

Journal articles

Accepted for publication

Ortelli N., de Lapparent M., Varotto S., Bierlaire M. (to appear). An integrated ordered logit and latent variable model for accident injury severity and risk-taking behavior. Transportation Research Part A: Policy and Practice (accepted for publication on Nov 15, 2024)

This study presents a flexible model for risk-taking behavior and accident injury severity. It is specifically designed to evaluate the impact of Via Sicura, a Swiss road safety program, on the severity of accident outcomes. Our proposed model treats the risk-taking behavior of each driver as a latent variable that depends on a number of socioeconomic and contextual factors, and whose manifestation can be measured by means of behavioral indicators. The aggregated risk, a central feature of our framework, represents the combined latent risk-taking behaviors among all drivers within an accident and is successfully identified as explanatory of the severity of injuries sustained by all individuals involved. Our findings reveal that Via Sicura’s repressive measures successfully deter risk-taking behavior among drivers, preventing an estimated 63 fatal, 876 major and 2,303 minor injuries over a ten-year period.
```
@Article{OrteDelaVaroBier24,
  author = {Nicola Ortelli and Matthieu {de Lapparent} and Silvia Varotto and Michel Bierlaire},
  title = {An integrated ordered logit and latent variable model for accident injury severity and risk-taking behavior},
  journal = {Transportation Research Part A: Policy and Practice},
  year = {to appear},
  DOI = {10.1016/j.tra.2024.104330},
  note = {Accepted on Nov 15, 2024}}}
```

2024

Ortelli N., de Lapparent M., Bierlaire M. (2024). Resampling Estimation of Discrete Choice Models. Journal of Choice Modelling 50 (100467)

In the context of discrete choice modeling, the extraction of potential behavioral insights from large datasets is often limited by the poor scalability of maximum likelihood estimation. This paper proposes a simple and fast dataset-reduction method that is specifically designed to preserve the richness of observations originally present in a dataset, while reducing the computational complexity of the estimation process. Our approach, called LSH-DR, leverages locality-sensitive hashing to create homogeneous clusters, from which representative observations are then sampled and weighted. We demonstrate the efficacy of our approach by applying it on a real-world mode choice dataset: the obtained results show that the samples generated by LSH-DR allow for substantial savings in estimation time while preserving estimation efficiency at little cost.
```
@Article{OrteLappBier2024,
  author = {Nicola Ortelli and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Resampling Estimation of Discrete Choice Models},
  journal = {Journal of Choice Modelling},
  year = {2024},
  volume = {50},
  number = {100467},
  DOI = {10.1016/j.jocm.2023.100467},
  note = {Accepted on Dec 20, 2023}}}
```

2021

Ortelli N., Hillel T., Pereira F., de Lapparent M., Bierlaire M. (2021). Assisted Specification of Discrete Choice Models. Journal of Choice Modelling 39 (100285)

Determining appropriate utility specifications for discrete choice models is time-consuming and prone to errors. As the number of possible functions exponentially grows with the vari- ables under consideration, analysts need to spend increasing amounts of time on searching for good specifications through trial-and-error and expert knowledge. This paper proposes a data-driven algorithm that aims at assisting modelers in their search. Our approach trans- lates the task into a multi-objective combinatorial optimization problem and makes use of a variant of the variable neighborhood search algorithm to generate solutions. We apply the algorithm to a real mode choice dataset as a proof of concept. The results demonstrate its ability to generate high-quality specifications in reasonable amounts of time.
```
@Article{OrteHillCamadeLaBier21,
  author = {Nicola Ortelli and Tim Hillel and Francisco Pereira and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Assisted Specification of Discrete Choice Models},
  journal = {Journal of Choice Modelling},
  year = {2021},
  volume = {39},
  number = {100285},
  DOI = {10.1016/j.jocm.2021.100285},
  note = {Accepted on Mar 16, 2021}}}
```

2018

Robenek T., Sharif Azadeh S., Maknoon Y., de Lapparent M., Bierlaire M. (2018). Train Timetable Design Under Elastic Passenger Demand. Transportation Research Part B: Methodological 111 :19-38


@Article{RoShMaDeBi18,
  author = {Tom\'a\v{s} Robenek and Shadi {Sharif Azadeh} and Yousef Maknoon and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Train Timetable Design Under Elastic Passenger Demand},
  journal = {Transportation Research Part B: Methodological},
  year = {2018},
  volume = {111},
  pages = {19-38},
  DOI = {10.1016/j.trb.2018.03.002},
  note = {Accepted on Mar 01, 2018}}}

Fernandez-Antolin A., de Lapparent M., Bierlaire M. (2018). Modeling purchases of new cars: an analysis of the 2014 French market. Theory and Decision 84 (2):277-303


@Article{FerAntDeLapBier17,
  author = {Anna Fernandez-Antolin and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Modeling purchases of new cars: an analysis of the 2014 French market},
  journal = {Theory and Decision},
  year = {2018},
  volume = {84},
  number = {2},
  pages = {277-303},
  DOI = {10.1007/s11238-017-9631-y},
  note = {Accepted on Sep 23, 2017}}}

2016

Fernandez-Antolin A., Guevara-Cue A., de Lapparent M., Bierlaire M. (2016). Correcting for endogeneity due to omitted attitudes: Empirical assessment of a modified MIS method using RP mode choice data. Journal of Choice Modelling 20 :1-15


@Article{FernGuevDeLaBier16,
  author = {Anna Fernandez-Antolin and Angelo Guevara-Cue and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Correcting for endogeneity due to omitted attitudes: Empirical assessment of a modified MIS method using RP mode choice data},
  journal = {Journal of Choice Modelling},
  year = {2016},
  volume = {20},
  pages = {1-15},
  DOI = {10.1016/j.jocm.2016.09.001},
  note = {Accepted on Sep 01, 2016}}}

de Lapparent M., Koning M. (2016). Analyzing time sensitivity in the Paris subway: an interval data model approach. Transportation 43 (5):913-933

We analyze individual travel discomfort-time tradeoffs in the Paris subway using stated choice experiments. The survey design allows to set up in a willingness-to-pay space to estimate the distributions of elasticities of values of travel time to crowd density and time multipliers. Several formulations of a generalized travel cost function are tested. Accounting for heterogeneity in preferences, the econometric models all take the form of an ordered probit with known bounds. We derive several estimates that could be used for fine-tuning of traffic simulation systems and more general transportation policy analysis.
```
@Article{lapkon2015,
  author = {Matthieu {de Lapparent} and Martin Koning},
  title = {Analyzing time sensitivity in the Paris subway: an interval data model approach},
  journal = {Transportation},
  year = {2016},
  volume = {43},
  number = {5},
  pages = {913-933},
  DOI = {10.1007/s11116-015-9629-7},
  note = {Accepted on Aug 01, 2016}}}
```
Danalet A., Tinguely L., de Lapparent M., Bierlaire M. (2016). Location choice with longitudinal WiFi data. Journal of Choice Modelling 18 :1-17

Location-aware data collection technologies provide new insights about location choices. Only a few dynamic models of location choice exist in scientific literature. To our knowledge, none of them correct for serial correlation. In this paper, we model choice of catering locations on a campus using WiFi traces. We use the [Wooldridge, J. M. (2005). Simple solutions to the initial conditions problem in dynamic, nonlinear panel data models with unobserved heterogeneity, Journal of Applied Econometrics 20(1): 39-54.] correction method that deals with the initial values problem and related endogeneity bias in estimation. Cross-validation, price elasticity and simulation of a scenario predicting the opening of a new catering location are presented. Predicted market shares of the new catering location correspond to point-of-sale data of the first week of opening.
```
@Article{DaTideLaBi15_JCM,
  author = {Antonin Danalet and Lo{\"\i}c Tinguely and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Location choice with longitudinal WiFi data},
  journal = {Journal of Choice Modelling},
  year = {2016},
  volume = {18},
  pages = {1-17},
  DOI = {10.1016/j.jocm.2016.04.003},
  note = {Accepted on Apr 12, 2016}}}
```

Nikolic M., Bierlaire M., Farooq B., de Lapparent M. (2016). Probabilistic speed-density relationship for pedestrian traffic. Transportation Research Part B: Methodological 89 :58-81


@Article{NikBieFarLap_ProbabilisticSpeedDensity,
  author = {Marija Nikolic and Michel Bierlaire and Bilal Farooq and Matthieu {de Lapparent}},
  title = {Probabilistic speed-density relationship for pedestrian traffic},
  journal = {Transportation Research Part B: Methodological},
  year = {2016},
  volume = {89},
  pages = {58-81},
  DOI = {10.1016/j.trb.2016.04.002},
  note = {Accepted on Apr 02, 2016}}}

Saujot M., de Lapparent M., Arnaud E., Prados E. (2016). Making land use � Transport models operational tools for planning: From a top-down to an end-user approach. Transport Policy 49 :20-29

Land Use and Transport Integrated models (LUTIs) are promising approaches for urban planning. There is large literature describing their technical architectures or using them in various scientific contexts. Yet little attention has been paid to expectations of practitioners (planners) and to the operational use of such models. The gap between lab application and operational use for planning practice is still to be filled. We shed light on what would make them definitely accepted and more used by planners to evaluate a range of urban and transport policies. In addition to literature review and our own experience dealing with urban planning agencies, we have interviewed different types of end users in France to identify their motivations and barriers to use LUTI models. The results show demand for a far more bottom-up oriented approach: the models should consider objectives and general needs of end users to live up to their expectations. Only a closer collaboration between modelers and end users, and more efforts to integrate modeling into urban planning, will make LUTIs considered as relevant approaches.
```
@Article{saujotetal2016,
  author = {Mathieu Saujot and Matthieu {de Lapparent} and Elise Arnaud and Emmanuel Prados},
  title = {Making land use {\textendash} Transport models operational tools for planning: From a top-down to an end-user approach},
  journal = {Transport  Policy},
  year = {2016},
  volume = {49},
  pages = {20-29},
  DOI = {10.1016/j.tranpol.2016.03.005},
  note = {Accepted on Mar 09, 2016}}}
```

2015

Cernicchiaro G., de Lapparent M. (2015). A dynamic discrete-continuous choice model for forward-looking agents owning one or more vehicles. Computational Economics 46 :15-34

During the last 40 years, a large number of studies have analyzed car holding and use behavior. Most of these ignore the dynamics of household and driver needs that very likely drive such decisions. Our work builds up on a disaggregate (compensatory) approach using revealed choices to address these dynamics. We develop a dynamic discrete/continuous choice model of car holding duration for forward-looking agents. We estimate this model using French panel survey data. Our findings indicate that a household’s time preference is a crucial element in car use and holding decisions.
```
@Article{CERNILAP2015,
  author = {Giulia Cernicchiaro and Matthieu {de Lapparent}},
  title = {A dynamic discrete-continuous choice model for forward-looking agents owning one or more vehicles},
  journal = {Computational Economics},
  year = {2015},
  volume = {46},
  pages = {15-34},
  DOI = {10.1007/s10614-014-9449-4}}}
```

Collet R., de Lapparent M., Hivert L. (2015). Are French Households Car-Use Addicts? A microeconomic perspective. Journal of Behavioral and Experimental Economics 54 :86-94


@Article{colletetal2015,
  author = {Roger Collet and Matthieu {de Lapparent} and Laurent Hivert},
  title = {Are French Households Car-Use Addicts? A microeconomic perspective},
  journal = {Journal of Behavioral and Experimental Economics},
  year = {2015},
  volume = {54},
  pages = {86-94},
  DOI = {10.1016/j.socec.2014.12.002}}}

de Palma A., Picard N., de Lapparent M. (2015). Risk and Uncertainty in Urban and Transport Economics. Mathematical Population Studies 22 (1):1-3


@Article{depalmaetal2015,
  author = {Andr\'e {de Palma} and Nathalie Picard and Matthieu {de Lapparent}},
  title = {Risk and Uncertainty in Urban and Transport Economics},
  journal = {Mathematical Population Studies},
  year = {2015},
  volume = {22},
  number = {1},
  pages = {1-3},
  DOI = {10.1080/08898480.2013.836424}}}

Book chapters

2015

de Palma A., de Lapparent M., Picard N. (2015) Modeling real estate investment decisions in households. In Bierlaire, de Palma, Hurtubia and Waddell (ed) Integrated transport and land use modeling for sustainable cities, EPFL Press , Lausanne, Switzerland [ISBN 978-2-940222-72-8]


@InProceedings{dePadeLapPic2015,
  author = {Andr\'e {de Palma} and Matthieu {de Lapparent} and Nathalie Picard},
  title = {Modeling real estate investment decisions in households},
  year = {2015},
  booktile = {Integrated transport and land use modeling for sustainable cities},
  editor = {Bierlaire and  de Palma and  Hurtubia and Waddell},
  publisher = {EPFL Press},
  address = {Lausanne, Switzerland},
  pages = {137-159}}}

Technical reports

2024

Ortelli N., de Lapparent M., Varotto S., Bierlaire M. (2024). An integrated ordered logit and latent variable model for accident injury severity and risk-taking behavior. Report TRANSP-OR 240101


@TechReport{OrteLappVaroBier2024,
  author = {Nicola Ortelli and Matthieu {de Lapparent} and Silvia Varotto and Michel Bierlaire},
  title = {An integrated ordered logit and latent variable model for accident injury severity and risk-taking behavior},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2024},
  type = {Technical Report},
  number = {TRANSP-OR 240101},
  address = {Lausanne, Switzerland}}}

2023

Ortelli N., de Lapparent M., Bierlaire M. (2023). Resampling estimation of discrete choice models. Report TRANSP-OR 230330


@TechReport{OrteLappBier2023,
  author = {Nicola Ortelli and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Resampling estimation of discrete choice models},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2023},
  type = {Technical Report},
  number = {TRANSP-OR 230330},
  address = {Lausanne, Switzerland}}}

2017

Kazagli E., Bierlaire M., de Lapparent M. (2017). Operational route choice methodologies for practical applications. Report TRANSP-OR 170526


@TechReport{KazBierDeLap2017,
  author = {Evanthia Kazagli and Michel Bierlaire and Matthieu {de Lapparent}},
  title = {Operational route choice methodologies for practical applications},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2017},
  type = {Technical Report},
  number = {TRANSP-OR 170526},
  address = {Lausanne, Switzerland}}}

Nikolic M., Bierlaire M., de Lapparent M., Scarinci R. (2017). Multi-class speed-density relationship for pedestrian traffic. Report TRANSP-OR 170115


@TechReport{NikBieLapSca_MCVK_2017,
  author = {Marija Nikolic and Michel Bierlaire and Matthieu {de Lapparent} and Riccardo Scarinci},
  title = {Multi-class speed-density relationship for pedestrian traffic},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2017},
  type = {Technical Report},
  number = {TRANSP-OR 170115},
  address = {Lausanne, Switzerland}}}

2016

Fernandez-Antolin A., de Lapparent M., Bierlaire M. (2016). Modeling purchases of new cars: an analysis of the 2014 French market. Report TRANSP-OR 161130


@TechReport{FerLapBie16,
  author = {Anna Fernandez-Antolin and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Modeling purchases of new cars: an analysis of the 2014 French market},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2016},
  type = {Technical Report},
  number = {TRANSP-OR 161130},
  address = {Lausanne, Switzerland}}}

Robenek T., Sharif Azadeh S., Maknoon Y., de Lapparent M., Bierlaire M. (2016). Train Timetable Design Under Elastic Passenger Demand. Report TRANSP-OR 160923


@TechReport{RobAzaMakLapBier16,
  author = {Tom\'a\v{s} Robenek and Shadi {Sharif Azadeh} and Yousef Maknoon and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Train Timetable Design Under Elastic Passenger Demand},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2016},
  type = {Technical Report},
  number = {TRANSP-OR 160923},
  address = {Lausanne, Switzerland}}}

Fernandez-Antolin A., Guevara-Cue A., de Lapparent M., Bierlaire M. (2016). Correcting for endogeneity using the multiple indicator solution. Report TRANSP-OR 160405


@TechReport{FerGueLapBie16,
  author = {Anna Fernandez-Antolin and Angelo Guevara-Cue and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Correcting for endogeneity using the multiple indicator solution},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2016},
  type = {Technical Report},
  number = {TRANSP-OR 160405},
  address = {Lausanne, Switzerland}}}

2015

Danalet A., Tinguely L., de Lapparent M., Bierlaire M. (2015). Location choice with longitudinal WiFi data. Report TRANSP-OR 151110


@TechReport{DaTideLaBi15,
  author = {Antonin Danalet and Lo{\"\i}c Tinguely and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Location choice with longitudinal WiFi data},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2015},
  type = {Technical Report},
  number = {TRANSP-OR 151110},
  address = {Lausanne, Switzerland}}}

Saujot M., de Lapparent M., Arnaud E., Prados E. (2015). To make LUTI models operational tools for planning. Report TRANSP-OR 150310


@TechReport{cities_cupum_2015,
  author = {Mathieu Saujot and Matthieu {de Lapparent} and Elise Arnaud and Emmanuel Prados},
  title = {To make LUTI models operational tools for planning},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2015},
  type = {Technical Report},
  number = {TRANSP-OR 150310},
  address = {Lausanne, Switzerland}}}

Peiravian F., de Lapparent M., Derrible S. (2015). Exploration of the Complex Similarity of Urban System Components. Report TRANSP-OR 150121


@TechReport{Peiravi_et_al_EPFL_format2015,
  author = {Farideddin Peiravian and Matthieu {de Lapparent} and Sybil Derrible},
  title = {Exploration of the Complex Similarity of Urban System Components},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2015},
  type = {Technical Report},
  number = {TRANSP-OR 150121},
  address = {Lausanne, Switzerland}}}

Gaudry M., de Lapparent M. (2015). Attitudes to Distance, Time and Cost in Logit Transport Choice Models. Report TRANSP-OR 150113


@TechReport{gaudry_lapparent_150113,
  author = {Marc Gaudry and Matthieu {de Lapparent}},
  title = {Attitudes to Distance, Time and Cost in Logit Transport Choice Models},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2015},
  type = {Technical Report},
  number = {TRANSP-OR 150113},
  address = {Lausanne, Switzerland}}}

de Lapparent M., Koning M. (2015). Travel discomfort-time tradeoffs in Paris subway: an empirical analysis using interval regression models. Report TRANSP-OR 150112


@TechReport{LapKon_2015,
  author = {Matthieu {de Lapparent} and Martin Koning},
  title = {Travel discomfort-time tradeoffs in Paris subway: an empirical analysis using interval regression models},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2015},
  type = {Technical Report},
  number = {TRANSP-OR 150112},
  address = {Lausanne, Switzerland}}}

2014

Buczkowska S., Coulombel N., de Lapparent M. (2014). Euclidean distance versus travel time in business location: A probabilistic mixture of hurdle-Poisson models. Report TRANSP-OR 141031


@TechReport{BucCouLap_2014,
  author = {Sabina Buczkowska and Nicolas Coulombel and Matthieu {de Lapparent}},
  title = {Euclidean distance versus travel time in business location: A probabilistic mixture of hurdle-Poisson models},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2014},
  type = {Technical Report},
  number = {TRANSP-OR 141031},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2024


@InProceedings{OrtHilPerLapBie_HEART2024,
  author = {Nicola Ortelli and Matthieu {de Lapparent} and Silvia Varotto and Michel Bierlaire},
  title = {An integrated accident injury severity and risk-taking behavior model for the evaluation of Via Sicura},
  booktime = {Proceedings of the 12th Symposium of the European Association for Research in Transportation (HEART), 18-20 June 2024},
  year = {2024},
  address = {Espoo, Finland}}}

Ortelli N., de Lapparent M., Bierlaire M. (2024) A conditional trust-region algorithm for the estimation of discrete choice models. Proceedings of the 24th Swiss Transport Research Conference (STRC), 15-17 May, Ascona, Switzerland


@InProceedings{OrtLapBie_STRC2024,
  author = {Nicola Ortelli and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {A conditional trust-region algorithm for the estimation of discrete choice models},
  booktime = {Proceedings of the 24th Swiss Transport Research Conference (STRC), 15-17 May},
  year = {2024},
  address = {Ascona, Switzerland}}}

2023

Ortelli N., de Lapparent M., Bierlaire M. (2023) Faster estimation of discrete choice models via weighted dataset reduction. Proceedings of the 11th Symposium of the European Association for Research in Transportation (HEART), 6-8 September 2023, Zurich, Switzerland


@InProceedings{OrtHilPerLapBie_HEART2023,
  author = {Nicola Ortelli and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Faster estimation of discrete choice models via

weighted dataset reduction},
  booktime = {Proceedings of the 11th Symposium of the European Association for Research in Transportation (HEART), 6-8 September 2023},
  year = {2023},
  address = {Zurich, Switzerland}}}

Ortelli N., de Lapparent M., Bierlaire M. (2023) Stochastic adaptive resampling for the estimation of discrete choice models. Proceedings of the 23rd Swiss Transport Research Conference (STRC), 10-12 May, Ascona, Switzerland


@InProceedings{OrtLapBie_STRC2023,
  author = {Nicola Ortelli and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Stochastic adaptive resampling for the estimation of discrete choice models},
  booktime = {Proceedings of the 23rd Swiss Transport Research Conference (STRC), 10-12 May},
  year = {2023},
  address = {Ascona, Switzerland}}}

2022

Ortelli N., de Lapparent M., Bierlaire M. (2022) Faster estimation of discrete choice models via dataset reduction. Proceedings of the 22nd Swiss Transport Research Conference (STRC), 18-20 May, Ascona, Switzerland


@InProceedings{OrtLapBie_STRC2022,
  author = {Nicola Ortelli and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Faster estimation of discrete choice models via dataset reduction},
  booktime = {Proceedings of the 22nd Swiss Transport Research Conference (STRC), 18-20 May},
  year = {2022},
  address = {Ascona, Switzerland}}}

2021

Ortelli N., Bierlaire M., de Lapparent M. (2021) Can we infer on behavioral impacts of public policy on accident severity outcomes? A Swiss case study using historical disaggregate accident reports. Proceedings of the 21st Swiss Transport Research Conference (STRC), 12-14 September, Ascona, Switzerland


@InProceedings{OrtBieLap_STRC2021,
  author = {Nicola Ortelli and Michel Bierlaire and Matthieu {de Lapparent}},
  title = {Can we infer on behavioral impacts of public policy on accident severity outcomes? A Swiss case study using historical disaggregate accident reports},
  booktime = {Proceedings of the 21st Swiss Transport Research Conference (STRC), 12-14 September},
  year = {2021},
  address = {Ascona, Switzerland}}}

2017


@InProceedings{FerLurLapBie_STRC2017,
  author = {Anna Fernandez-Antolin and Virginie Lurkin and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Discrete-continuous maximum likelihood for the estimation of nested logit models},
  booktime = {Proceedings of the 16th Swiss Transport Research Conference (STRC), 17-19 May},
  year = {2017},
  address = {Ascona, Switzerland}}}

2016

Fernandez-Antolin A., de Lapparent M., Bierlaire M. (2016) Uncovering substitution patterns in new car sales using a cross nested logit model. Proceedings of the 16th Swiss Transport Research Conference (STRC), 18-20 May, Ascona, Switzerland


@InProceedings{FerLapBie_STRC2016,
  author = {Anna Fernandez-Antolin and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Uncovering substitution patterns in new car sales using a cross nested logit model},
  booktime = {Proceedings of the 16th Swiss Transport Research Conference (STRC), 18-20 May},
  year = {2016},
  address = {Ascona, Switzerland}}}

2015

Saujot M., de Lapparent M., Arnaud E., Prados E. (2015) To make LUTI models operational tools for planning. Proceedings of the 14th International Conference on Computers in Urban Planning and Urban Management (CUPUM), July 7-10, Cambridge, MA , USA


@InProceedings{luti_cupum,
  author = {Mathieu Saujot and Matthieu {de Lapparent} and Elise Arnaud and Emmanuel Prados},
  title = {To make LUTI models operational tools for planning},
  booktime = {Proceedings of the 14th International Conference on Computers in Urban Planning and Urban Management (CUPUM), July 7-10},
  year = {2015},
  address = {Cambridge, MA , USA}}}

Baillif M., de Lapparent M., Fernandez-Antolin A., Bierlaire M. (2015) Modeling consideration for electric vehicles and plug-in electric vehicles in car renewal. Proceedings of the 15th Swiss Transportation Research Conference (STRC), April 15-17, Monte Verit�, Ascona, Switzerland


@InProceedings{Baillif_STRC_2015,
  author = {Maurin Baillif and Matthieu {de Lapparent} and Anna Fernandez-Antolin and Michel Bierlaire},
  title = {Modeling consideration for electric vehicles and plug-in electric vehicles in car renewal},
  booktime = {Proceedings of the 15th Swiss Transportation Research Conference (STRC), April 15-17},
  year = {2015},
  address = {Monte Verit\`a, Ascona, Switzerland}}}

Markov I., de Lapparent M., Bierlaire M., Varone S. (2015) Modeling a waste disposal process via a discrete mixture of count data models. Proceedings of the 15th Swiss Transport Research Conference (STRC), April 15-17, Ascona, Switzerland


@InProceedings{MarLappBierVar_STRC2015,
  author = {Iliya Markov and Matthieu {de Lapparent} and Michel Bierlaire and Sacha Varone},
  title = {Modeling a waste disposal process via a discrete mixture of count data models},
  booktime = {Proceedings of the 15th Swiss Transport Research Conference (STRC), April 15-17},
  year = {2015},
  address = {Ascona, Switzerland}}}

Tinguely L., Danalet A., de Lapparent M., Bierlaire M. (2015) Destination Choice Model including a panel effect using WiFi localization in a pedestrian facility. Proceedings of the 15th Swiss Transport Research Conference (STRC), April 15-17, Monte Verit�, Ascona, Switzerland


@InProceedings{TDdLB15,
  author = {Lo{\"\i}c Tinguely and Antonin Danalet and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Destination Choice Model including a panel effect using WiFi localization in a pedestrian facility},
  booktime = {Proceedings of the 15th Swiss Transport Research Conference (STRC), April 15-17},
  year = {2015},
  address = {Monte Verit\`a, Ascona, Switzerland}}}

Peiravian F., de Lapparent M., Derrible S. (2015) Transportation Networks, People, and Buildings: Characterization of Urban System Components. Proceedings of the Transportation Research Board 94th Annual Meeting (TRB), January 11-15, Washington DC, USA


@InProceedings{peiravian_lapparent_derrible_TRB2015,
  author = {Farideddin Peiravian and Matthieu {de Lapparent} and Sybil Derrible},
  title = {Transportation Networks, People, and Buildings: Characterization of Urban System Components},
  booktime = {Proceedings of the Transportation Research Board 94th Annual Meeting (TRB), January 11-15},
  year = {2015},
  address = {Washington DC, USA}}}

Talks

2017

de Lapparent M. Travel discomfort-time tradeoffs in Paris subway March 09, 2017. Seminar, Department of Civil and Environmental Engineering, University of Yamanashi, Kofu, Japan.


@Misc{Japan20174,
  author = {Matthieu {de Lapparent}},
  title = {Travel discomfort-time tradeoffs in Paris subway},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Japan20174.pdf}},
  year = {2017},
  note = {Presented at Seminar, Department of Civil and Environmental Engineering, University of Yamanashi, Kofu, Japan}}}

de Lapparent M. Structural modelling of sales and prices in the 2015 new car market in France March 09, 2017. Seminar, Department of Civil and Environmental Engineering, University of Yamanashi, Kofu, Japan.


@Misc{Japan20175,
  author = {Matthieu {de Lapparent}},
  title = {Structural modelling of sales and prices in the 2015 new car market in France},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Japan20175.pdf}},
  year = {2017},
  note = {Presented at Seminar, Department of Civil and Environmental Engineering, University of Yamanashi, Kofu, Japan}}}

de Lapparent M. On modeling optimal use and ownership duration of a car: a dynamic discrete choice approach March 07, 2017. Seminar, Department of Civil Engineering, Nagoya University, Nagoya, Japan.


@Misc{Japan20173,
  author = {Matthieu {de Lapparent}},
  title = {On modeling optimal use and ownership duration of a car: a dynamic discrete choice approach},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Japan20173.pdf}},
  year = {2017},
  note = {Presented at Seminar, Department of Civil Engineering, Nagoya University, Nagoya, Japan}}}

de Lapparent M. Structural modelling of sales and prices in the 2015 new car market in France March 06, 2017. Small International Workshop on Advanced Choice Modelling, Tokyo Institute of Technology, Tokyo, Japan.


@Misc{Japan20172,
  author = {Matthieu {de Lapparent}},
  title = {Structural modelling of sales and prices in the 2015 new car market in France},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Japan20172.pdf}},
  year = {2017},
  note = {Presented at Small International Workshop on Advanced Choice Modelling, Tokyo Institute of Technology, Tokyo, Japan}}}

de Lapparent M. Modeling Interactions under Imperfect Information March 05, 2017. International Workshop on Dynamic Risk Management of Transport Network: Social Interaction, Monitoring and Simulation, Tokyo Institute of Technology, Tokyo, Japan.


@Misc{Japan20171,
  author = {Matthieu {de Lapparent}},
  title = {Modeling Interactions under Imperfect Information},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Japan20171.pdf}},
  year = {2017},
  note = {Presented at International Workshop on Dynamic Risk Management of Transport Network: Social Interaction, Monitoring and Simulation, Tokyo Institute of Technology, Tokyo, Japan}}}

2016

de Lapparent M. Structural modeling of sales and prices in the 2015 new car market in France October 20, 2016. EI seminar, Erasmus University, Department of Econometrics, Econometric Institute, Rotterdam, The Netherlands.


@Misc{Lapparent_EUR_2016,
  author = {Matthieu {de Lapparent}},
  title = {Structural modeling of sales and prices in the 2015 new car market in France},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Lapparent_EUR_2016.pdf}},
  year = {2016},
  note = {Presented at EI seminar, Erasmus University, Department of Econometrics, Econometric Institute, Rotterdam, The Netherlands}}}

de Lapparent M., Bierlaire M. Modeling demand for new cars in Germany: a Bayesian approach June 16, 2016. 9th Triennial Symposium on Transportation Analysis , Oranjestad, Aruba.


@Misc{TRISTAN_2016_MDL,
  author = {Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Modeling demand for new cars in Germany: a Bayesian approach},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/TRISTAN_2016_MDL.pdf}},
  year = {2016},
  note = {Presented at 9th Triennial Symposium on Transportation Analysis , Oranjestad, Aruba}}}

de Lapparent M. Statistiques, Econom�trie, et Big Data January 12, 2016. Journée assurance et big data, Ecole des Ponts Paris-Tech, Paris, France.


@Misc{Lapparent_ENPC_2016,
  author = {Matthieu {de Lapparent}},
  title = {Statistiques, Econom\'etrie, et Big Data},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Lapparent_ENPC_2016.pdf}},
  year = {2016},
  note = {Presented at Journ\ée assurance et big data, Ecole des Ponts Paris-Tech, Paris, France}}}

2015

de Lapparent M. Les mod�les LUTI : �tat de l�art, exemples internationaux et effets d�agglom�ration October 22, 2015. La prise en compte des effets d’agglomération dans le calcul socioéconomique, CGI, CGEDD, France-Stratégie, Paris, France.


@Misc{Lapparent_CGI_2015,
  author = {Matthieu {de Lapparent}},
  title = {Les mod\`eles LUTI : \'etat de l{\textquoteright}art, exemples internationaux et effets d{\textquoteright}agglom\'eration},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Lapparent_CGI_2015.pdf}},
  year = {2015},
  note = {Presented at La prise en compte des effets d\’agglom\ération dans le calcul socio\économique, CGI, CGEDD, France-Strat\égie, Paris, France}}}

de Lapparent M., Koning M. Travel discomfort-time tradeoffs in Paris subway: an empirical analysis using interval regression models July 23, 2015. 14th International Conference on Travel Behaviour Research, Beaumont Estate, Windsor.


@Misc{Lapparent_IATBR15,
  author = {Matthieu {de Lapparent} and Martin Koning},
  title = {Travel discomfort-time tradeoffs in Paris subway: an empirical analysis using interval regression models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Lapparent_IATBR15.pdf}},
  year = {2015},
  note = {Presented at 14th International Conference on Travel Behaviour Research, Beaumont Estate, Windsor}}}

Reviewing

Research projects

2014

Electric vehicle adoption dynamics: exploring market potentials

This project proposes innovative methods to identify the determinants of acceptance of alternative vehicles and their impact on everyday mobility. The greatest challenge faced by the promoters of the transition towards this low carbon engine technology lies in understanding how consumers accept the financial and lifestyle investments associated with the leap from traditional to electric powertrains. This project proposes innovative methods to identify the determinants of acceptance of alternative vehicles and their impact on everyday mobility. A deeper understanding of adoption dynamics is critical to predict who will opt for EVs when and under which conditions. This project will focus on innovative data-collection and modelling methodologies to uncover the acceptance of EVs at different stages of market-penetration (considering inexperienced/experienced users, early pioneers/late-adopters). A thorough analysis of the consumer decision-making process will lead to uncovering the barriers and success factors related to EV uptake and to forecast buying and usage behaviours related to new vehicle classes.
- Apr 01, 2014 - Mar 31, 2017
- Sponsor: Nissan
- Principal investigator: Michel Bierlaire
- Project manager: Matthieu de Lapparent
- Collaborator: Anna Fernandez Antolin

2013

Revisiting the Route Choice Problem: A Multi-Level Modeling Framework for Route Choice Analysis Based On Latent Constructs

This project aims at developing behavioral models integrating the latent constructs that drive travel behavior. The objective of the project is to set the foundations of an innovative framework that facilitates the analysis and prediction of route choice behavior. Motivated by the complexity of the route choice models, we build on solid ground of the current state of the art and add on it by proposing a new approach that reduces model complexity and brings great flexibility to the analysis. The approach is inspired by the fact that people break down the complexity of the environment by forming representations of their surrounding space. Following this reasoning, we replace the conventional representation of routes which is based on paths, i.e. link-by-link sequences on the network model, with more aggregate elements that we denote as mental representation items. This key feature of the framework allows us to reduce the complexity of the model and at the same time is more behaviorally realistic.
- Oct 01, 2013 - Sep 30, 2016
- Sponsor: Swiss National Science Foundation
- Principal investigator: Michel Bierlaire
- Project manager: Matthieu de Lapparent
- Collaborator: Evanthia Kazagli

2011

ACTUM

The ACTUM research collaboration project involves development of an activity-based modelling framework for Copenhagen that is aimed at handling the future requirements for transport policy evaluations in Denmark.
- Mar 01, 2011 - Mar 01, 2016
- Sponsor: The Danish Council for Strategic Research
- Principal investigator: Michel Bierlaire
- Project manager: Matthieu de Lapparent

EPFL courses

Fall 2016

Mod�lisation des syst�mes de transports.
- Level: Master
- Section: Civil Engineering
- Lecturers: Anne Curchod, Matthieu de Lapparent
Villes et Transports.
- Level: Master
- Section: Civil Engineering
- Lecturer: Matthieu de Lapparent

Spring 2016

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Matthieu de Lapparent, Shadi Sharif Azadeh
- Teaching assistants: Anna Fernandez Antolin, Tom�s Robenek, Yousef Maknoon, Evanthia Kazagli
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2016/index.php

Fall 2015

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturers: Michel Bierlaire, Matthieu de Lapparent
- Teaching assistants: Evanthia Kazagli, Anna Fernandez Antolin
- Webpage: http://transp-or.epfl.ch/courses/dca2015/

Spring 2015

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Matthieu de Lapparent, Shadi Sharif Azadeh
- Teaching assistants: Evanthia Kazagli, Anna Fernandez Antolin, Iliya Markov, Yousef Maknoon
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2015/index.php

Fall 2014

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturers: Michel Bierlaire, Matthieu de Lapparent
- Teaching assistants: Anna Fernandez Antolin, Evanthia Kazagli
- Webpage: http://transp-or.epfl.ch/courses/dca2014/

Various lectures

2017

Hybrid Choice Models (ctd).
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 16, 2017 - Feb 16, 2017
- Lecturer: Matthieu de Lapparent
- Assistants: Evanthia Kazagli, Meritxell Pacheco, Anna Fernandez Antolin
Logit Mixture; Hybrid Choice Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 15, 2017 - Feb 15, 2017
- Lecturer: Matthieu de Lapparent
- Assistants: Evanthia Kazagli, Meritxell Pacheco, Anna Fernandez Antolin
Forecasting; Combining RP and SP.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 14, 2017 - Feb 14, 2017
- Lecturer: Meritxell Pacheco
- Assistants: Evanthia Kazagli, Matthieu de Lapparent, Anna Fernandez Antolin
Nested logit; Specification testing.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 13, 2017 - Feb 13, 2017
- Lecturer: Evanthia Kazagli
- Assistants: Meritxell Pacheco, Matthieu de Lapparent, Anna Fernandez Antolin
Introduction; Logit estimation.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 12, 2017 - Feb 12, 2017
- Lecturer: Evanthia Kazagli
- Assistants: Meritxell Pacheco, Matthieu de Lapparent, Anna Fernandez Antolin

2016

Logit Mixture; Combining SP and RP.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 23, 2016 - Mar 23, 2016
- Lecturer: Matthieu de Lapparent
- Assistants: Evanthia Kazagli, Anna Fernandez Antolin
Forecasting; Nested Logit.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 22, 2016 - Mar 22, 2016
- Lecturer: Anna Fernandez Antolin
- Assistants: Evanthia Kazagli, Matthieu de Lapparent
Logit Models; Specification testing.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 21, 2016 - Mar 21, 2016
- Lecturer: Anna Fernandez Antolin
- Assistants: Evanthia Kazagli, Matthieu de Lapparent

PhD supervision

Anna Fernandez Antolin, Dealing with correlations in discrete choice models.

Master theses

2017-2018

Modelling High Mobility Practices in Santiago de Chile, Pauline Hansotte (Civil Engineering)
- Supervision: Matthieu de Lapparent
- External expert: Prof. Ricardo Hurtubia

2017

Dynamiques de la grande mobilité, Alexis Gumy (Civil Engineering)
- Supervision: Matthieu de Lapparent, Michel Bierlaire
- External expert: V. Kaufmann, E. Ravalet, Sebastien Munafo
Concurrence sur les marchés automobiles européens: une approche par la modélisation de la demande, Christophe Paillard (Mathematics)
- Supervision: Matthieu de Lapparent, Michel Bierlaire
- External expert: Antonin Danalet
Modeling Heterogeneity of Drivers Route Choice Behavior in Quebec, Mathieu Plourde (Civil Engineering)
- Supervision: Evanthia Kazagli, Matthieu de Lapparent, Michel Bierlaire
- External expert: Charisma Choudhury
Integrating Bicycle Travel Demand to a Land-Use and Transport Model, Marc-Edouard Schultheiss (Civil Engineering)
- Supervision: Matthieu de Lapparent, Marija Nikolic, Michel Bierlaire
- External expert: Christopher Zegras
Passenger's Connection Time Preferences in Airline Itinerary Choice, Elisabeth Zbinden (Civil Engineering)
- Supervision: Virginie Lurkin, Matthieu de Lapparent, Michel Bierlaire
- External expert: Laurie Garrow

2016

Discrete choice model for the automobile market: modeling willingness-to-pay for marginal and non marginal changes in car attributes, Anna-Katharina Clodong (Civil Engineering)
- Supervision: Matthieu de Lapparent, Anna Fernandez Antolin, Michel Bierlaire
- External expert:

2015-2016

Disaggregate modeling of vehicle-miles traveled: what about users of alternative-fuel vehicles?, Takao Dantsuji (Civil Engineering)
- Supervision: Matthieu de Lapparent, Anna Fernandez Antolin, Michel Bierlaire
- External expert:

2015

Modeling consideration and willingness-to-pay for electric and plug-in hybrid electric vehicles in car renewal, Baillif Maurin (Civil Engineering)
- Supervision: Matthieu de Lapparent, Anna Fernandez Antolin, Michel Bierlaire
- External expert: Yves Delacrétaz
Exploiting pedestrian WiFi traces for destination choice modeling, Loïc Tinguely (Civil Engineering)
- Supervision: Antonin Danalet, Matthieu de Lapparent, Michel Bierlaire
- External expert: Andres Sevtsuk

Semester projects

2017

Emotions and risky discrete choices, Le Sueur Cécile Christianne Anny Déborah Suzanne (SMA)

Supervision: Matthieu de Lapparent, Michel Bierlaire
This CSE project aims at understanding, analyzing and quantitative modeling of the roles of emotions in risky choice making

2016

Une modélisation de la grande mobilité, Pauline Hosotte

Supervision: Matthieu de Lapparent, Michel Bierlaire

Grandes mobilités réversibles. Approche par la modélisation dynamique de choix discrets., Alexis Gumy

Supervision: Matthieu de Lapparent, Michel Bierlaire

4. Modeling Route Choice in Quebec City Using Mental Representations, Mathieu Plourde

Supervision: Evanthia Kazagli, Matthieu de Lapparent, Michel Bierlaire
In this project, we build upon previous work proposed by Kazagli et al., 2016 to model route choice for a big network and dataset concerning the city of Quebec. We aim first to define the mental representation items (MRIs) for the case study and then to derive operational route choice models based on them. A GPS dataset from the city of Quebec is available and will be used for this purpose. The focus of the project is methodological.

Passengers' connection time preferences in airline itinerary choice, Elisabeth Zbinden (Civil Engineering)

Supervision: Virginie Lurkin, Matthieu de Lapparent, Michel Bierlaire
As noted by Theis et al. (2006), "Network airlines traditionally attempt to minimize passenger connecting times at hub airports, assuming that passengers prefer minimum scheduled elapsed time for their trips. However, minimizing connecting times creates schedule peaks at hub airports. These peaks are extremely cost-intensive in terms of additional personnel, resources, runway capacity, and schedule recovery. Consequently, passenger connecting times should be minimized only if the anticipated revenue gain of minimizing passenger connection times is larger than the increase." Prior work has used (small) stated preference surveys to estimate customers' connection time preferences, and explicitly whether this function is nonlinear with connection time (i.e., customers avoid very short connections and very long connections). However, little is known as to how these connection time preferences vary as a function of other characteristics, including flight frequency (or schedule delay), length of haul, whether the flight is the last flight of the day, prior on-time performance of flight legs. As part of this project, the student will estimate airline itinerary choice models using a large ticketing database provided by the Airlines Reporting Corporation (ARC). The student will build off of prior MNL models that have been estimated which have corrected for price endogeneity and focus explicitly on refining the utility function related to connection time preferences.

Accounting for dynamics in pedestrian multi-class speed-density relationship, Marc-Edouard Schultheiss (Civil Engineering)

Supervision: Marija Nikolic, Matthieu de Lapparent, Michel Bierlaire
The relationship between speed and density plays an important role in modeling of pedestrian traffic. It is useful for planning and design of pedestrian facilities, and it is also a required input or calibration criterion for models of pedestrian dynamics. The relationship is specified under the assumption that the traffic system is at equilibrium (stationary and homogenous). The analysis we have performed, based on the data collected in the Lausanne train station, rules out the use of a unique equilibrium relationship due to a high scatter in the data. This scatter may be explained by the violation of the equilibrium assumptions, as documented in the literature. To characterize the observed scatter we have developed a multi-class model of the speed-density relationship based on the latent class modeling approach. The model is derived by relaxing the homogeneity assumption of equilibrium relationships. It is assumed that pedestrian population is heterogeneous (e.g. different trip purpose, different time to departure, etc.) and that this heterogeneity leads to the existence of multiple pedestrian classes that are characterized by different behavior. There are two specification issues related to the panel data set (data collected over multiple time periods for the same sample of individuals) that we use in our analysis. The first is serial correlation across the observations of the same individual due to unobserved individual factors that persist over time. The second is related to dynamics, meaning that the speed in one period may depend on the speed values in the past. We have addressed the first issue by introducing an agent effect in the model that captures individual related unobserved factors. We term this model the static model with agent effect. The aim of this project will be to deal with the second issue, or dynamics. We will start with the simplified assumption that the speed at time t is influenced by the speed at time t - 1 only. We term such a model a dynamic model with agent effect. The performance of the approach will be tested using real data.

Modeling evolution of sales of alternative fuel vehicles in Europe, Christophe Paillard (Mathematics)

Supervision: Matthieu de Lapparent, Michel Bierlaire

Modeling route choice in Québec using mental representations, Mathieu Plourde

Supervision: Evanthia Kazagli, Matthieu de Lapparent, Michel Bierlaire
In this project, we aim at simplifying the route choice problem by modeling the strategic decisions of people --represented by the mental representations of their itineraries-- instead of the operational ones --represented by paths. We define an abstracted graph based on what we denote mental representation item (MRI) and we derive operational route choice models based on it. A GPS dataset from the city of Quebec is available and will be used for this purpose. Hence, the project is divided in two main parts; the first and technical part which involves data processing, and the second methodological part which involves the development of a model for the MRI network.

2015-2016

Hedonic pricing of car attributes: a comparison across European countries, Anna-Katharina Clodong (Civil Engineering)

Supervision: Matthieu de Lapparent, Anna Fernandez Antolin, Michel Bierlaire
Hedonic pricing is a revealed preference approach that is used for valuation of constituent characteristics of a good or a service. This project aims at pricing car attributes using disaggregate data on car purchases in 5 European countries from 2010 to 2014. Attention will be paid on estimation of market price gradients and willingness-to-pay for engine types, fuel consumption, weight to power ratio, etc., while accounting for heterogenous preferences of consumers and controlling for market segments, changes in quality, and brand effects. The candidate will take a strong interest in nonlinear regression methods, issues in econometric modeling, analysis and preparation of large datasets, and programming.

2015

Development of an aggregate route choice model for a big network, Arriagada Diego Alexandre

Supervision: Evanthia Kazagli, Matthieu de Lapparent, Michel Bierlaire
The use of random utility models for route choice analysis involves challenges stemming from the high requirements in data and data processing, the physical overlap of paths, and the large size of the choice set. These factors increase the complexity of the models significantly. In order to simplify the problem, a novel approach based on an aggregate representation of route choices has been proposed. The conventional representation and modeling approach is based on path alternatives constructed as link-by-link sequences on the network. This approach entails a very large number of possible paths connecting a given origin and destination (OD), and high correlation among the alternative paths. In this work, we claim that a path is solely the manifestation of the route choice, i.e. the way the traveler implements her decision to take a specific route, and we replace the paths with aggregate elements that we denote as Mental Representation Items (MRIs). This key feature allows us to reduce the complexity of the model and at the same time is more behaviorally realistic. The aim of this project is to extend this approach and apply it in a big network for which information about congestion is available. A GPS dataset from the city of Quebec is available and will be used for this purpose. Knowledge of statistical mathematics and familiarity with MATLAB and SQL are required. Geographic Information Systems (GIS) software will be used for completing this project.

2014

A destination choice model for EPFL Campus, Loïc Tinguely (Civil Engineering)

Supervision: Antonin Danalet, Matthieu de Lapparent
Based on WiFi traces from access points, the goal of this semester project consists in developing binary discrete choice models for the choice of attending classes.

Accounting for attitudes in modeling demand for electric vehicles, Maurin Baillif (Civil Engineering)

Supervision: Matthieu de Lapparent, Anna Fernandez Antolin, Michel Bierlaire
The purpose is to characterize and to model determinants of electric vehicle acceptance and adoption by individuals. Special attention will be paid to additional integration of attitudinal drivers and barriers to adherence to such technology. It aims at understanding how consumers accept the financial and lifestyle investments associated with the leap from traditional to electric powertrains, focusing on battery electric (BEV) and plug-in hybrid electric (PHEV) vehicles. To this extent, the 2012 Renault-Nissan Alliance survey on electric vehicles will be used. Data are collected over 5 European countries: France, Italy, Germany, Spain, UK. It focuses on current owners of a car bought new between 6 months and 5 years ago and who intend to buy a new car in the next 5 years. State-of-the-art and extended discrete choice models will be developed to account for formation of latent processes and existence of endogeneity issues.

Yousef Maknoon

Yousef Maknoon has been a member of the laboratory from Oct 01, 2014 to Feb 28, 2017

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Yousef Maknoon.

Journal articles

2022

Sharif Azadeh S., Atasoy B., Ben-Akiva M., Bierlaire M., Maknoon Y. (2022). Choice-Driven Dial-A-Ride Problem for Demand Responsive Mobility Service. Transportation Research Part B: Methodological 161 :128-149

Urban mobility services face the challenge of planning their operations efficiently while complying with user preferences. In this paper, we introduce a new mathematical model called a choice-driven dial-a-ride problem (CD-DARP) which is a generalization of the dynamic DARP where passenger behavior is integrated in the operational planning using choice models and assortment optimization. We look at two types of mobility services, private and shared. Our problem extends the dynamic DARP by (i) changing its objective function to profit maximization, where both cost and revenue are variables, and (ii) incorporating assortment optimization with routing decisions in a dynamic setting. We propose a pricing scheme based on a choice model designed to offer service alternatives at the time a customer makes a request. We introduce a tailored algorithm to efficiently solve the dynamic CD-DARP. Computational results indicate that our proposed approach outperforms dynamic DARP in terms of reducing routing costs and improving the number of customers served.
```
@Article{SharAtasBenABierMakn22,
  author = {Shadi {Sharif Azadeh} and Bilge Atasoy and Moshe Ben-Akiva and Michel Bierlaire and Yousef Maknoon},
  title = {Choice-Driven Dial-A-Ride Problem for Demand Responsive Mobility Service},
  journal = {Transportation Research Part B: Methodological},
  year = {2022},
  volume = {161},
  pages = {128-149},
  DOI = {10.1016/j.trb.2022.04.008},
  note = {Accepted on Apr 29, 2022}}}
```

2021

Binder S., Maknoon Y., Sharif Azadeh S., Bierlaire M. (2021). Passenger-Centric Timetable Rescheduling: A User Equilibrium Approach. Transportation Research Part C: Emerging Technologies 132 :103368


@Article{BindMaknSharBier,
  author = {Stefan Binder and Yousef Maknoon and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {Passenger-Centric Timetable Rescheduling: A User Equilibrium Approach},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2021},
  volume = {132},
  pages = {103368},
  DOI = {10.1016/j.trc.2021.103368},
  note = {Accepted on Aug 26, 2021}}}

2020

Markov I., Bierlaire M., Cordeau J., Maknoon Y., Varone S. (2020). Waste Collection Inventory Routing with Non-stationary Stochastic Demands. Computers & Operations Research 113 (104798)


@Article{MarkBierCordMaknVaro19,
  author = {Iliya Markov and Michel Bierlaire and Jean-Fran\c{c}ois Cordeau and Yousef Maknoon and Sacha Varone},
  title = {Waste Collection Inventory Routing with Non-stationary Stochastic Demands},
  journal = {Computers \& Operations Research},
  year = {2020},
  volume = {113},
  number = {104798},
  DOI = {10.1016/j.cor.2019.104798},
  note = {Accepted on Sep 03, 2019}}}

2019

Sharif Azadeh S., Bierlaire M., Maknoon Y. (2019). A Two-Stage Route Optimization Algorithm for Light Aircraft Transport Systems. Transportation Research Part C: Emerging Technologies 100 :259-273


@Article{SharBierMakn,
  author = {Shadi {Sharif Azadeh} and Michel Bierlaire and Yousef Maknoon},
  title = {A Two-Stage Route Optimization Algorithm for Light Aircraft Transport Systems},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2019},
  volume = {100},
  pages = {259-273},
  DOI = {10.1016/j.trc.2019.01.028},
  note = {Accepted on Jan 28, 2019}}}

2018

Markov I., Bierlaire M., Cordeau J., Maknoon Y., Varone S. (2018). A Unified Framework for Rich Routing Problems with Stochastic Demands. Transportation Research Part B: Methodological 114 :213-240


@Article{MarkBierCordMaknVaro2017,
  author = {Iliya Markov and Michel Bierlaire and Jean-Fran\c{c}ois Cordeau and Yousef Maknoon and Sacha Varone},
  title = {A Unified Framework for Rich Routing Problems with Stochastic Demands},
  journal = {Transportation Research Part B: Methodological},
  year = {2018},
  volume = {114},
  pages = {213-240},
  DOI = {10.1016/j.trb.2018.05.015},
  note = {Accepted on May 24, 2018}}}


@Article{RoShMaDeBi18,
  author = {Tom\'a\v{s} Robenek and Shadi {Sharif Azadeh} and Yousef Maknoon and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Train Timetable Design Under Elastic Passenger Demand},
  journal = {Transportation Research Part B: Methodological},
  year = {2018},
  volume = {111},
  pages = {19-38},
  DOI = {10.1016/j.trb.2018.03.002},
  note = {Accepted on Mar 01, 2018}}}

2017

Binder S., Maknoon Y., Bierlaire M. (2017). Exogenous priority rules for the capacitated passenger assignment problem. Transportation Research Part B: Methodological 105 :19-42


@Article{BindMaknBier17a,
  author = {Stefan Binder and Yousef Maknoon and Michel Bierlaire},
  title = {Exogenous priority rules for the capacitated passenger assignment problem},
  journal = {Transportation Research Part B: Methodological},
  year = {2017},
  volume = {105},
  pages = {19-42},
  DOI = {10.1016/j.trb.2017.08.022},
  note = {Accepted on Aug 17, 2017}}}

Binder S., Maknoon Y., Bierlaire M. (2017). The multi-objective railway timetable rescheduling problem. Transportation Research Part C: Emerging Technologies 78 :78-94


@Article{BindMaknBier17,
  author = {Stefan Binder and Yousef Maknoon and Michel Bierlaire},
  title = {The multi-objective railway timetable rescheduling problem},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2017},
  volume = {78},
  pages = {78-94},
  DOI = {10.1016/j.trc.2017.02.001},
  note = {Accepted on Feb 01, 2017}}}

Maknoon Y., Soumis F., Baptiste P. (2017). An integer programming approach to scheduling the transshipment of products at cross-docks in less-than-truckload industries. Computers & Operations Research 82 :167�179


@Article{CORMAKNOON(2),
  author = {Yousef Maknoon and Francois Soumis and Pierre Baptiste},
  title = {An integer programming approach to scheduling the transshipment of products at cross-docks in less-than-truckload industries},
  journal = {Computers \& Operations Research},
  year = {2017},
  volume = {82},
  pages = {167{\textendash}179},
  DOI = {10.1016/j.cor.2017.01.018},
  note = {Accepted on Jan 27, 2017}}}

Robenek T., Sharif Azadeh S., Maknoon Y., Bierlaire M. (2017). Hybrid Cyclicity: Combining The Benefits Of Cyclic And Non-Cyclic Timetables. Transportation Research Part C: Emerging Technologies 75 :228-253


@Article{RobeSharMaknBier17,
  author = {Tom\'a\v{s} Robenek and Shadi {Sharif Azadeh} and Yousef Maknoon and Michel Bierlaire},
  title = {Hybrid Cyclicity: Combining The Benefits Of Cyclic And Non-Cyclic Timetables},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2017},
  volume = {75},
  pages = {228-253},
  DOI = {10.1016/j.trc.2016.12.015},
  note = {Accepted on Dec 19, 2016}}}

2016

Maknoon Y., Laporte G. (2016). Vehicle routing with cross-dock selection. Computers & Operations Research 77 :254�266


@Article{CORMAKNOON,
  author = {Yousef Maknoon and Gilbert Laporte},
  title = {Vehicle routing with cross-dock selection},
  journal = {Computers \& Operations Research},
  year = {2016},
  volume = {77},
  pages = {254{\textendash}266},
  DOI = {10.1016/j.cor.2016.08.007},
  note = {Accepted on Aug 23, 2016}}}

Maknoon Y., Soumis F., Baptiste P. (2016). Optimizing transshipment workloads in less-than-truckload cross-docks. International Journal of Production Economics 179 :90-100


@Article{IJPECD,
  author = {Yousef Maknoon and Francois Soumis and Pierre Baptiste},
  title = {Optimizing transshipment workloads in less-than-truckload cross-docks},
  journal = {International Journal of Production Economics},
  year = {2016},
  volume = {179},
  pages = {90-100},
  DOI = {10.1016/j.ijpe.2016.05.015},
  note = {Accepted on May 17, 2016}}}

Robenek T., Maknoon Y., Sharif Azadeh S., Chen J., Bierlaire M. (2016). Passenger Centric Train Timetabling Problem. Transportation Research Part B: Methodological 89 :107-126


@Article{RobeMakAzaChenBier16,
  author = {Tom\'a\v{s} Robenek and Yousef Maknoon and Shadi {Sharif Azadeh} and {Jiang Hang} Chen and Michel Bierlaire},
  title = {Passenger Centric Train Timetabling Problem},
  journal = {Transportation Research Part B: Methodological},
  year = {2016},
  volume = {89},
  pages = {107-126},
  DOI = {10.1016/j.trb.2016.04.003},
  note = {Accepted on Apr 01, 2016}}}

Book chapters

2021

Sharif Azadeh S., Maknoon Y., Chen J., Bierlaire M. (2021) The Impact of Collaborative Scheduling and Routing for Interconnected Logistics: A European Case Study. In Jafar Rezaei (ed) Strategic Decision Making for Sustainable Management of Industrial Networks, Springer , Switzerland [ISBN 978-3-030-55384-5]


@InProceedings{SharMaknChenBier21,
  author = {Shadi {Sharif Azadeh} and Yousef Maknoon and {Jiang Hang} Chen and Michel Bierlaire},
  title = {The Impact of Collaborative Scheduling and Routing for Interconnected Logistics: A European Case Study},
  year = {2021},
  booktile = {Strategic Decision Making for Sustainable Management of Industrial Networks},
  editor = {Jafar Rezaei},
  publisher = {Springer},
  address = {Switzerland},
  pages = {35-56}}}

Technical reports

2017

Binder S., Maknoon Y., Bierlaire M. (2017). Introducing exogenous priority rules for the capacitated passenger assignment problem. Report TRANSP-OR 170209


@TechReport{BinMakBier2017,
  author = {Stefan Binder and Yousef Maknoon and Michel Bierlaire},
  title = {Introducing exogenous priority rules for the capacitated passenger assignment problem},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2017},
  type = {Technical Report},
  number = {TRANSP-OR 170209},
  address = {Lausanne, Switzerland}}}

2016

Robenek T., Sharif Azadeh S., Maknoon Y., de Lapparent M., Bierlaire M. (2016). Train Timetable Design Under Elastic Passenger Demand. Report TRANSP-OR 160923


@TechReport{RobAzaMakLapBier16,
  author = {Tom\'a\v{s} Robenek and Shadi {Sharif Azadeh} and Yousef Maknoon and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Train Timetable Design Under Elastic Passenger Demand},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2016},
  type = {Technical Report},
  number = {TRANSP-OR 160923},
  address = {Lausanne, Switzerland}}}

Markov I., Bierlaire M., Cordeau J., Maknoon Y., Varone S. (2016). Inventory routing with non-stationary stochastic demands. Report TRANSP-OR 160825


@TechReport{Markov_TechreportWP5,
  author = {Iliya Markov and Michel Bierlaire and Jean-Fran\c{c}ois Cordeau and Yousef Maknoon and Sacha Varone},
  title = {Inventory routing with non-stationary stochastic demands},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2016},
  type = {Technical Report},
  number = {TRANSP-OR 160825},
  address = {Lausanne, Switzerland}}}

Maknoon Y., Bierlaire M. (2016). A passenger-centric approach to enhance railway services. Report TRANSP-OR 160805


@TechReport{MakBI,
  author = {Yousef Maknoon and Michel Bierlaire},
  title = {A passenger-centric approach to enhance

railway services},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2016},
  type = {Technical Report},
  number = {TRANSP-OR 160805},
  address = {Lausanne, Switzerland}}}

Binder S., Maknoon Y., Bierlaire M. (2016). The multi-objective railway timetable rescheduling problem. Report TRANSP-OR 160530


@TechReport{BinMakBier2016,
  author = {Stefan Binder and Yousef Maknoon and Michel Bierlaire},
  title = {The multi-objective railway timetable rescheduling problem},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2016},
  type = {Technical Report},
  number = {TRANSP-OR 160530},
  address = {Lausanne, Switzerland}}}

Robenek T., Sharif Azadeh S., Maknoon Y., Bierlaire M. (2016). Hybrid Cyclicity: Combining The Benefits Of Cyclic And Non-Cyclic Timetables. Report TRANSP-OR 160510


@TechReport{RobeAzaMakBier16,
  author = {Tom\'a\v{s} Robenek and Shadi {Sharif Azadeh} and Yousef Maknoon and Michel Bierlaire},
  title = {Hybrid Cyclicity: Combining The Benefits Of Cyclic And Non-Cyclic Timetables},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2016},
  type = {Technical Report},
  number = {TRANSP-OR 160510},
  address = {Lausanne, Switzerland}}}

2015

Robenek T., Maknoon Y., Sharif Azadeh S., Chen J., Bierlaire M. (2015). Passenger Centric Train Timetabling Problem. Report TRANSP-OR 150917


@TechReport{RobMakAzaChenBier15,
  author = {Tom\'a\v{s} Robenek and Yousef Maknoon and Shadi {Sharif Azadeh} and {Jiang Hang} Chen and Michel Bierlaire},
  title = {Passenger Centric Train Timetabling Problem},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2015},
  type = {Technical Report},
  number = {TRANSP-OR 150917},
  address = {Lausanne, Switzerland}}}

Maknoon Y., Sharif Azadeh S., Bierlaire M. (2015). Trajectory planning for small aircrafts. Report TRANSP-OR 150901


@TechReport{MakShaBi,
  author = {Yousef Maknoon and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {Trajectory planning for small aircrafts},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2015},
  type = {Technical Report},
  number = {TRANSP-OR 150901},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2017

Binder S., Maknoon Y., Bierlaire M. (2017) Efficient investigation of multiple dimensions of the railway timetable rescheduling problem. Proceedings of the 17th Swiss Transportation Research ConferenceMay 17-19th, Ascona, Switzerland


@InProceedings{Binder_STRC2017_Proceedings,
  author = {Stefan Binder and Yousef Maknoon and Michel Bierlaire},
  title = {Efficient investigation of multiple dimensions of the railway timetable rescheduling problem},
  booktime = {Proceedings of the 17th Swiss Transportation Research Conference, May 17-19th},
  year = {2017},
  address = {Ascona, Switzerland}}}

2016

Wehres U., Sharif Azadeh S., Maknoon Y., Bierlaire M. (2016) Modeling Uncertainty for a Catenary-free Electrical Bus. Proceedings of the 16th Swiss Transportation Research Conference (STRC), May 19-20, 2016, Ascona, Switzerland


@InProceedings{Ulrich_STRC_2016,
  author = {Ulrich Wehres and Shadi {Sharif Azadeh} and Yousef Maknoon and Michel Bierlaire},
  title = {Modeling Uncertainty for a Catenary-free Electrical Bus},
  booktime = {Proceedings of the 16th Swiss Transportation Research Conference (STRC), May 19-20, 2016},
  year = {2016},
  address = {Ascona, Switzerland}}}

2015

Binder S., Maknoon Y., Bierlaire M. (2015) Passenger-oriented railway disposition timetables in case of severe disruptions. Proceedings of the 15th Swiss Transportation Research ConferenceApril 15-17th, Ascona, Switzerland


@InProceedings{Binder_STRC2015_Proceedings,
  author = {Stefan Binder and Yousef Maknoon and Michel Bierlaire},
  title = {Passenger-oriented railway disposition timetables in case of severe disruptions},
  booktime = {Proceedings of the 15th Swiss Transportation Research Conference, April 15-17th},
  year = {2015},
  address = {Ascona, Switzerland}}}

Binder S., Maknoon Y., Sharif Azadeh S., Bierlaire M. (2015) Generation and evaluation of passenger-oriented railway disposition timetables in case of severe disruptions. Proceedings of the 6th International Conference on Railway Operations Modelling and Analysis (RailTokyo2015), March 23 � 26, Tokyo, Japan


@InProceedings{Binder_RailTokyo,
  author = {Stefan Binder and Yousef Maknoon and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {Generation and evaluation of passenger-oriented railway disposition timetables in case of severe disruptions},
  booktime = {Proceedings of the 6th International Conference on Railway Operations Modelling and Analysis (RailTokyo2015), March 23 {\textendash} 26},
  year = {2015},
  address = {Tokyo, Japan}}}

Robenek T., Sharif Azadeh S., Chen J., Bierlaire M., Maknoon Y. (2015) The Ideal Train Timetabling Problem. Proceedings of the 6th International Conference on Railway Operations Modelling and Analysis (RailTokyo2015), March 23 � 26, Tokyo, Japan


@InProceedings{Robenek_RailTokyo_2015,
  author = {Tom\'a\v{s} Robenek and Shadi {Sharif Azadeh} and {Jiang Hang} Chen and Michel Bierlaire and Yousef Maknoon},
  title = {The Ideal Train Timetabling Problem},
  booktime = {Proceedings of the 6th International Conference on Railway Operations Modelling and Analysis (RailTokyo2015), March 23 {\textendash} 26},
  year = {2015},
  address = {Tokyo, Japan}}}

Robenek T., Maknoon Y., Bierlaire M. (2015) Railway Passenger Service Timetable Design. Proceedings of the 15th Swiss Transportation Research Conference (STRC), 15 -17 April, Ascona, Switzerland


@InProceedings{Robenek_STRC2015,
  author = {Tom\'a\v{s} Robenek and Yousef Maknoon and Michel Bierlaire},
  title = {Railway Passenger Service Timetable Design},
  booktime = {Proceedings of the 15th Swiss Transportation Research Conference (STRC), 15 -17 April},
  year = {2015},
  address = {Ascona, Switzerland}}}

Talks

2016

Maknoon Y., Sharif Azadeh S., Bierlaire M. Network design problem for electrical bus July 06, 2016. EURO 2016, Poznan, Poland.


@Misc{Maknoon_EURO2016,
  author = {Yousef Maknoon and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {Network design problem for electrical bus

},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Maknoon_EURO2016.pdf}},
  year = {2016},
  note = {Presented at EURO 2016, Poznan, Poland}}}

2015

Maknoon Y., Sharif Azadeh S., Bierlaire M. Network Design Problem for Battery Electric Bus November 03, 2015. INFORMS Annual Meeting 2015, Philadelphia, USA.


@Misc{Maknoon_Inform2015,
  author = {Yousef Maknoon and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {Network Design Problem for Battery Electric Bus},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Maknoon_Inform2015.pdf}},
  year = {2015},
  note = {Presented at INFORMS Annual Meeting 2015, Philadelphia, USA}}}

Maknoon Y., Bierlaire M. Truck scheduling in logistic network with transshipment centers September 10, 2015. hEART2015, Copenhagen, Denmark.


@Misc{Maknoon_hEart2015,
  author = {Yousef Maknoon and Michel Bierlaire},
  title = {Truck scheduling in logistic network

with transshipment centers

},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Maknoon_hEart2015.pdf}},
  year = {2015},
  note = {Presented at hEART2015, Copenhagen, Denmark}}}

Maknoon Y., Sharif Azadeh S., Bierlaire M. Demand-based network design problem July 14, 2015. EURO 2015, Glasgow, Scotland.


@Misc{Maknoon_Euro2015,
  author = {Yousef Maknoon and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {Demand-based network design problem },
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Maknoon_Euro2015.pdf}},
  year = {2015},
  note = {Presented at EURO 2015, Glasgow, Scotland}}}

2014

Maknoon Y., Baptiste P., Laporte G. Vehicle Routing with Cross-dock Selection November 12, 2014. INFORMS Annual Meeting 2014, San Francisco, USA.


@Misc{Maknoon_Inform2014,
  author = {Yousef Maknoon and Pierre Baptiste and Gilbert Laporte},
  title = {Vehicle Routing with Cross-dock Selection

},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Maknoon_Inform2014.pdf}},
  year = {2014},
  note = {Presented at INFORMS Annual Meeting 2014, San Francisco, USA}}}

Maknoon Y. Scheduling Material Handling in Cross-Docking Terminals August 02, 2014. CUSO - doctoral program in operations research, Zinal, Switzerland.


@Misc{Maknoon_Zinal,
  author = {Yousef Maknoon},
  title = {Scheduling Material Handling 

in Cross-Docking Terminals},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Maknoon_Zinal.pdf}},
  year = {2014},
  note = {Presented at CUSO - doctoral program in operations research, Zinal, Switzerland}}}

Reviewing

Research projects

2016

Capacity building program in urban mobility and transportation

The purpose of this project is to develop graduate curriculum in urban mobility and transportation. The relevant courses of this curriculum will be available in MOOC format. This program is a collaborative project between Kwame Nkrumah University of Science and Technology (KNUST) and Urban Transport Systems Laboratory (LUTS) and Transport and Mobility Laboratory (TRANSP-OR) at EPFL.
- Sep 01, 2016 - Sep 01, 2019
- Sponsor: State Secretariat for Economic Affairs
- Principal investigator: Michel Bierlaire
- Project managers: Yousef Maknoon, Riccardo Scarinci, Yuki Oyama

2015

myTOSA 2.0 - Enhanced simulation and optimization tool for cost-optimal deployment of TOSA electric buses

The TOSA catenary-free electric bus system is the ABB response to the challenge of decreasing the environmental impact of public transportation. The project builds on the previous CTI project - myTOSA - and it aims to introduce new business analytics features and to improve the fidelity of the simulation and (robust) optimization modules used for a cost-optimal deployment of the TOSA charging infrastructure and component sizing.
- Sep 30, 2015 - Nov 16, 2017
- Sponsor: Commission pour la technologie et de l'innovation, Office Fédéral de la formation professionnelle et de la technologie.
- Principal investigator: Michel Bierlaire
- Project managers: Riccardo Scarinci, Virginie Lurkin
- Collaborators: Shadi Sharif Azadeh, Yousef Maknoon

2014

Air navigation platform: flights planning by using real-time weather data

Flying safer, cheaper, faster are keywords of this new service. This project aims at integrating an automatic route planning system, tightly coupled with the real-time meteorological data, taking into account energy consumption of the mobile device hosting the application. The route will be computed in real time on mobile devices using the information of weather forecast and respecting to the constraints such as airspace/airport restriction and terrain avoidance, etc. The energy efficient implementation of the routing application is crucial, to provide routing information to the pilot during the entire trip. This becomes challenging, as automatic route planning often requires complex algorithms. In this project, we will target at a three-dimensional flight route-planning problem and design an efficient but robust algorithm to solve the problem. The project will last 18 months. It is conducted by TRANSP-OR in collaboration with the Xample S�rl, ICARE Institut de recherche and Haute Ecole Sp�cialis�e de Suisse Occidentale (HES-SO).
- Mar 02, 2014 - Sep 02, 2015
- Sponsor: Commission pour la technologie et de l'innovation, Office Fédéral de la formation professionnelle et de la technologie.
- Principal investigator: Michel Bierlaire
- Project managers: Yousef Maknoon, Shadi Sharif Azadeh

EPFL courses

Fall 2016

Introduction � l'optimisation et � la recherche op�rationnelle.
- Level: Bachelor
- Sections: Mechanical Engineering, Civil Engineering, Environmental Sciences and Engineering, Electrical and Electronics Engineering
- Lecturer: Michel Bierlaire
- Teaching assistant: Yousef Maknoon
- Webpage: http://transp-or.epfl.ch/courses/optimization2016/

Spring 2016

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Matthieu de Lapparent, Shadi Sharif Azadeh
- Teaching assistants: Anna Fernandez Antolin, Tom�s Robenek, Yousef Maknoon, Evanthia Kazagli
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2016/index.php
Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Riccardo Scarinci, Yousef Maknoon
- Teaching assistants: Iliya Markov, Marija Nikolic
- Webpage: http://transp-or.epfl.ch/courses/OptSim2016/

Fall 2015

Introduction � l'optimisation et � la recherche op�rationnelle.
- Level: Bachelor
- Sections: Civil Engineering, Mechanical Engineering, Environmental Sciences and Engineering, Electrical and Electronics Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Shadi Sharif Azadeh, Yousef Maknoon
- Webpage: http://moodle.epfl.ch/course/view.php?id=14491

Spring 2015

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Matthieu de Lapparent, Shadi Sharif Azadeh
- Teaching assistants: Evanthia Kazagli, Anna Fernandez Antolin, Iliya Markov, Yousef Maknoon
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2015/index.php
Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Riccardo Scarinci, Yousef Maknoon
- Teaching assistants: Tom�s Robenek, Marija Nikolic
- Webpage: http://transp-or.epfl.ch/courses/OptSim2015/

Master theses

2016

Analysis, tuning, hybridization and design of experiments for an adaptive large neighborhood search (ALNS) heuristic for a complex inventory routing problem, Raphaël Lüthi (None)
- Supervision: Iliya Markov, Yousef Maknoon, Michel Bierlaire
- External expert:

2015-2016

Decision making for human resource training and allocation, Guillaume Lopez (Civil Engineering)
- Supervision: Yousef Maknoon, Shadi Sharif Azadeh, Michel Bierlaire
- External expert:
Robust Design of a Single Line Electrical Bus, Ulrich Wehres (Civil Engineering)
- Supervision: Shadi Sharif Azadeh, Yousef Maknoon, Michel Bierlaire
- External expert:

Semester projects

2016

Demand based rolling stock allocation, Salma Derouiche (Computer science)

Supervision: Yousef Maknoon, Tomás Robenek, Michel Bierlaire
Providing a high level of service for the passengers is one of the most important requirements of passenger railway company. In practice during rush hours passengers cannot be transported according to usual service standards because of a shortage of the rolling stock capacity. The purpose of this pre-project is to determine an efficient method to allocate the rolling stock taking into account passengers demand.

Generalization and policy analysis for a rich inventory routing problem, Prisca Aeby (Computer science)

Supervision: Iliya Markov, Yousef Maknoon, Michel Bierlaire
We solve a rich logistical problem inspired from practice, in which a set of trucks is used for collecting recyclable waste from large containers over a finite planning horizon. Each container is equipped with a sensor, which communicates its level at the start of the day. Given a history of observations, a forecasting model is used to estimate the point demand forecasts as well as a forecasting error representing the level of uncertainty. The problem falls under the framework of the stochastic inventory routing problem. We introduce dynamic probabilistic information in the solution process, which impacts the cost through the probability of container overflows on future days and the probability of route failures. To solve the problem, we implement an adaptive large neighborhood search algorithm, which integrates a specialized forecasting model, tested and validated on real data. The student will analyze the performance of the algorithm and its results for various scenarios and collection and routing policies. In particular, we would like to see the impact on the best solution of the full probabilistic model with various cost parameters against simpler policies, such as one using buffer truck and container capacities to handle stochastic demand. We would like to apply the model on a rolling horizon basis and analyze the expected value of perfect information, the properties of the stochastic solution, etc. Other practical features such as open tours, multi-product problems, etc. may also be explored. We can also work on improving the algorithmic performance per se through new operators and more intelligent search strategies in the current implementation. This project is appropriate for a student with excellent coding skills in Java and knowledge of a good software for plotting and data analysis such as Matlab or R. The focus of the project will be suited to the student's interests, coding abilities, and the number of credits he or she needs.

Energy consumption of an innovative catenary-free electric bus, Xiaoran Yu

Supervision: Riccardo Scarinci, Yousef Maknoon, Michel Bierlaire
Electric busses help to decrease pollution in city centers. However, they need to be constantly attached to a power source. This limits their mobility and brings visual pollution due to continuous catenaries throughout the city. Focus of this project is a revolutionary catenaryfree electrical bus that includes short-range on-board batteries and a series of fast charging stations installed at some bus stops capable to charge the bus batteries in a few seconds without interference with the bus schedules. This project aims to develop a traffic simulation of this electric bus moving on a simple road network. A discrete event simulation representing the fundamental components of the system (e.g. bus, passengers load, on-board battery, charging station, storage level) should be developed, calibrated and validated using traffic data (such as number passengers on board, traffic and congestion information). Then, key indexes representing the system performance should be defined (e.g. travel time, dwell time, battery charge level). Methodologies from transportation modelling, simulation and programming (Java) will be used for completing this project.

Traffic simulation model of an innovative catenary-free electric bus, Romain Meyer (Civil Engineering)

Supervision: Riccardo Scarinci, Yousef Maknoon, Michel Bierlaire
Electric busses help to decrease pollution in city centres. However, they need to be constantly attached to a power source. This limits their mobility and brings visual pollution due to continuous catenaries throughout the city. Focus of this project is a revolutionary catenary-free electrical bus that includes short-range on-board batteries and a series of fast charging stations installed at some bus stops capable to charge the bus batteries in a few seconds without interference with the bus schedules. This project aims to develop a traffic simulation of this electric bus moving on a simple road network. A discrete event simulation representing the fundamental components of the system (e.g. bus, passengers load, on-board battery, charging station, storage level) should be developed, calibrated and validated using traffic data (such as number passengers on board, traffic and congestion information). Then, key indexes representing the system performance should be defined (e.g. travel time, dwell time, battery charge level). Methodologies from transportation modelling, simulation and programming (MATLAB) will be used for completing this project.

2014-2015

Planning tool for the admission of medical graduates into the Otolaryngology training program in the CHUV, Guillaume Lopez

Supervision: Yousef Maknoon, Shadi Sharif Azadeh, Michel Bierlaire

Shadi Sharif Azadeh

Shadi Sharif Azadeh has been a member of the laboratory from May 01, 2014 to Sep 30, 2016

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Shadi Sharif Azadeh.

Journal articles

2022

Pacheco M., Gendron B., Sharif Azadeh S., Bierlaire M. (2022). A Lagrangian decomposition scheme for choice-based optimization. Computers & Operations Research 148 :105985


@Article{PachGendSharBier22,
  author = {Meritxell Pacheco and Bernard Gendron and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {A Lagrangian decomposition scheme for choice-based optimization},
  journal = {Computers \& Operations Research},
  year = {2022},
  volume = {148},
  pages = {105985},
  DOI = {10.1016/j.cor.2022.105985},
  note = {Accepted on Jul 29, 2022}}}

Sharif Azadeh S., Atasoy B., Ben-Akiva M., Bierlaire M., Maknoon Y. (2022). Choice-Driven Dial-A-Ride Problem for Demand Responsive Mobility Service. Transportation Research Part B: Methodological 161 :128-149

Urban mobility services face the challenge of planning their operations efficiently while complying with user preferences. In this paper, we introduce a new mathematical model called a choice-driven dial-a-ride problem (CD-DARP) which is a generalization of the dynamic DARP where passenger behavior is integrated in the operational planning using choice models and assortment optimization. We look at two types of mobility services, private and shared. Our problem extends the dynamic DARP by (i) changing its objective function to profit maximization, where both cost and revenue are variables, and (ii) incorporating assortment optimization with routing decisions in a dynamic setting. We propose a pricing scheme based on a choice model designed to offer service alternatives at the time a customer makes a request. We introduce a tailored algorithm to efficiently solve the dynamic CD-DARP. Computational results indicate that our proposed approach outperforms dynamic DARP in terms of reducing routing costs and improving the number of customers served.
```
@Article{SharAtasBenABierMakn22,
  author = {Shadi {Sharif Azadeh} and Bilge Atasoy and Moshe Ben-Akiva and Michel Bierlaire and Yousef Maknoon},
  title = {Choice-Driven Dial-A-Ride Problem for Demand Responsive Mobility Service},
  journal = {Transportation Research Part B: Methodological},
  year = {2022},
  volume = {161},
  pages = {128-149},
  DOI = {10.1016/j.trb.2022.04.008},
  note = {Accepted on Apr 29, 2022}}}
```

2021


@Article{BindMaknSharBier,
  author = {Stefan Binder and Yousef Maknoon and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {Passenger-Centric Timetable Rescheduling: A User Equilibrium Approach},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2021},
  volume = {132},
  pages = {103368},
  DOI = {10.1016/j.trc.2021.103368},
  note = {Accepted on Aug 26, 2021}}}

Pacheco M., Bierlaire M., Gendron B., Sharif Azadeh S. (2021). Integrating advanced discrete choice models in mixed integer linear optimization . Transportation Research Part B: Methodological 146 :26-49


@Article{PachSharBierGend21,
  author = {Meritxell Pacheco and Michel Bierlaire and Bernard Gendron and Shadi {Sharif Azadeh}},
  title = {Integrating advanced discrete choice models in mixed integer linear optimization },
  journal = {Transportation Research Part B: Methodological},
  year = {2021},
  volume = {146},
  pages = {26-49},
  DOI = {10.1016/j.trb.2021.02.003},
  note = {Accepted on Feb 09, 2021}}}

2019


@Article{SharBierMakn,
  author = {Shadi {Sharif Azadeh} and Michel Bierlaire and Yousef Maknoon},
  title = {A Two-Stage Route Optimization Algorithm for Light Aircraft Transport Systems},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2019},
  volume = {100},
  pages = {259-273},
  DOI = {10.1016/j.trc.2019.01.028},
  note = {Accepted on Jan 28, 2019}}}

2018


@Article{RoShMaDeBi18,
  author = {Tom\'a\v{s} Robenek and Shadi {Sharif Azadeh} and Yousef Maknoon and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Train Timetable Design Under Elastic Passenger Demand},
  journal = {Transportation Research Part B: Methodological},
  year = {2018},
  volume = {111},
  pages = {19-38},
  DOI = {10.1016/j.trb.2018.03.002},
  note = {Accepted on Mar 01, 2018}}}

2017


@Article{RobeSharMaknBier17,
  author = {Tom\'a\v{s} Robenek and Shadi {Sharif Azadeh} and Yousef Maknoon and Michel Bierlaire},
  title = {Hybrid Cyclicity: Combining The Benefits Of Cyclic And Non-Cyclic Timetables},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2017},
  volume = {75},
  pages = {228-253},
  DOI = {10.1016/j.trc.2016.12.015},
  note = {Accepted on Dec 19, 2016}}}

2016

Robenek T., Maknoon Y., Sharif Azadeh S., Chen J., Bierlaire M. (2016). Passenger Centric Train Timetabling Problem. Transportation Research Part B: Methodological 89 :107-126


@Article{RobeMakAzaChenBier16,
  author = {Tom\'a\v{s} Robenek and Yousef Maknoon and Shadi {Sharif Azadeh} and {Jiang Hang} Chen and Michel Bierlaire},
  title = {Passenger Centric Train Timetabling Problem},
  journal = {Transportation Research Part B: Methodological},
  year = {2016},
  volume = {89},
  pages = {107-126},
  DOI = {10.1016/j.trb.2016.04.003},
  note = {Accepted on Apr 01, 2016}}}

2015

Sharif Azadeh S., Hosseinalifam M., Savard G. (2015). The impact of customer behavior models on revenue management systems. Computational Management Science 12 (1):99-109

Revenue management (RM) can be considered an application of operations research in the transportation industry. For these service companies, it is a difficult task to adjust supply and demand. In order to maximize revenue, RM systems display demand behavior by using historical data. Usually, parametric methods are applied to estimate the probability of choosing a product at a given time. However, parameter estimation becomes challenging when we need to deal with constrained data. In this research, we evaluate the performance of a revenue management system when a nonparametric method for choice probability estimation is chosen. The outcomes of this method have been compared to the total expected revenue using synthetic data.
```
@Article{ShaHosMar14,
  author = {Shadi {Sharif Azadeh} and Morad Hosseinalifam and Gilles Savard},
  title = {The impact of customer behavior models on revenue management systems},
  journal = {Computational Management Science},
  year = {2015},
  volume = {12},
  number = {1},
  pages = {99-109},
  DOI = {10.1007/s10287-014-0204-z}}}
```
Sharif Azadeh S., Marcotte P., Savard G. (2015). A Non-Parametric Approach to Demand Forecasting in Revenue Management. Computers & Operations Research 12 (1):99-109

In revenue management, the profitability of the inventory and pricing decisions rests on the accuracy of demand forecasts. However, whenever a product is no longer available, true demand may differ from registered bookings, thus inducing a negative bias in the estimation figures, as well as an artificial increase in demand for substitute products. In order to address these issues, we propose an original Mixed Integer Nonlinear Program (MINLP) to estimate product utilities as well as capturing seasonal effects. This behavioral model solely rests on daily registered bookings and product availabilities. Its outputs are the product utilities and daily potential demands, together with the expected demand of each product within any given time interval. Those are obtained via a tailored algorithm that outperforms two well-known generic software for global optimization
```
@Article{ShaMarSav15,
  author = {Shadi {Sharif Azadeh} and Patrice Marcotte and Gilles Savard},
  title = { A Non-Parametric Approach to Demand Forecasting in Revenue Management},
  journal = {Computers \& Operations Research},
  year = {2015},
  volume = {12},
  number = {1},
  pages = {99-109},
  DOI = {10.1007/s10287-014-0204-z}}}
```

2014

Sharif Azadeh S., Marcotte P., Savard G. (2014). A taxonomy of demand uncensoring methods in revenue management. Journal of Revenue & Pricing Management 13 :440-456

Revenue management systems rely on customer data, and are thus affected by the absence of registered demand that arises when a product is no longer available. In the present work, we review the uncensoring (or unconstraining) techniques that have been proposed to deal with this issue, and develop a taxonomy based on their respective features. This study will be helpful in identifying the relative merits of these techniques, as well as avenues for future research.
```
@Article{SharMarSavard14,
  author = {Shadi {Sharif Azadeh} and Patrice Marcotte and Gilles Savard},
  title = { A taxonomy of demand uncensoring methods in revenue management},
  journal = {Journal of Revenue \& Pricing Management},
  year = {2014},
  volume = {13},
  pages = {440-456},
  DOI = {10.1057/rpm.2014.8}}}
```

2013

Sharif Azadeh S., Labib R., Savard G. (2013). Railway demand forecasting in revenue management using neural networks. International Journal of Revenue Management 7 (1):18-36


@Article{ShaLabSav13,
  author = {Shadi {Sharif Azadeh} and Richard Labib and Gilles Savard},
  title = {Railway demand forecasting in revenue management using neural networks},
  journal = {International Journal of Revenue Management},
  year = {2013},
  volume = {7},
  number = {1},
  pages = {18-36},
  DOI = {10.1504/IJRM.2013.053358}}}

Book chapters

2024

Sharif Azadeh S., Pacheco M., Bierlaire M. (2024) Decomposition Methods for Choice-Based Optimization Models. In Crainic, T.G., Gendreau, M., Frangioni, A. (ed) Combinatorial Optimization and Applications, Springer , Cham.


@InProceedings{SharPachBier24,
  author = {Shadi {Sharif Azadeh} and Meritxell Pacheco and Michel Bierlaire},
  title = {Decomposition Methods for Choice-Based Optimization Models},
  year = {2024},
  booktile = {Combinatorial Optimization and Applications},
  editor = {Crainic and  T.G. and  Gendreau and  M. and  Frangioni and  A. },
  volume = {358},
  series = {Series in Operations Research \& Management Science},
  publisher = {Springer},
  address = {Cham.}}}

2021


@InProceedings{SharMaknChenBier21,
  author = {Shadi {Sharif Azadeh} and Yousef Maknoon and {Jiang Hang} Chen and Michel Bierlaire},
  title = {The Impact of Collaborative Scheduling and Routing for Interconnected Logistics: A European Case Study},
  year = {2021},
  booktile = {Strategic Decision Making for Sustainable Management of Industrial Networks},
  editor = {Jafar Rezaei},
  publisher = {Springer},
  address = {Switzerland},
  pages = {35-56}}}

Technical reports

2021

Pacheco M., Gendron B., Sharif Azadeh S., Bierlaire M. (2021). A Lagrangian decomposition scheme for choice-based optimization. Report TRANSP-OR 210827


@TechReport{PachGendSharBier21,
  author = {Meritxell Pacheco and Bernard Gendron and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {A Lagrangian decomposition scheme for choice-based optimization},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2021},
  type = {Technical Report},
  number = {TRANSP-OR 210827},
  address = {Lausanne, Switzerland}}}

2017

Pacheco M., Sharif Azadeh S., Bierlaire M., Gendron B. (2017). Integrating advanced discrete choice models in mixed integer linear optimization. Report TRANSP-OR 170714


@TechReport{PacShaBieGen2017,
  author = {Meritxell Pacheco and Shadi {Sharif Azadeh} and Michel Bierlaire and Bernard Gendron},
  title = {Integrating advanced discrete choice models in mixed integer linear optimization},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2017},
  type = {Technical Report},
  number = {TRANSP-OR 170714},
  address = {Lausanne, Switzerland}}}

2016

Robenek T., Sharif Azadeh S., Maknoon Y., de Lapparent M., Bierlaire M. (2016). Train Timetable Design Under Elastic Passenger Demand. Report TRANSP-OR 160923


@TechReport{RobAzaMakLapBier16,
  author = {Tom\'a\v{s} Robenek and Shadi {Sharif Azadeh} and Yousef Maknoon and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Train Timetable Design Under Elastic Passenger Demand},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2016},
  type = {Technical Report},
  number = {TRANSP-OR 160923},
  address = {Lausanne, Switzerland}}}

Robenek T., Sharif Azadeh S., Maknoon Y., Bierlaire M. (2016). Hybrid Cyclicity: Combining The Benefits Of Cyclic And Non-Cyclic Timetables. Report TRANSP-OR 160510


@TechReport{RobeAzaMakBier16,
  author = {Tom\'a\v{s} Robenek and Shadi {Sharif Azadeh} and Yousef Maknoon and Michel Bierlaire},
  title = {Hybrid Cyclicity: Combining The Benefits Of Cyclic And Non-Cyclic Timetables},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2016},
  type = {Technical Report},
  number = {TRANSP-OR 160510},
  address = {Lausanne, Switzerland}}}

Bierlaire M., Sharif Azadeh S. (2016). Demand-based discrete optimization. Report TRANSP-OR 160209


@TechReport{BierShar16,
  author = {Michel Bierlaire and Shadi {Sharif Azadeh}},
  title = {Demand-based discrete optimization},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2016},
  type = {Technical Report},
  number = {TRANSP-OR 160209},
  address = {Lausanne, Switzerland}}}

2015

Robenek T., Maknoon Y., Sharif Azadeh S., Chen J., Bierlaire M. (2015). Passenger Centric Train Timetabling Problem. Report TRANSP-OR 150917


@TechReport{RobMakAzaChenBier15,
  author = {Tom\'a\v{s} Robenek and Yousef Maknoon and Shadi {Sharif Azadeh} and {Jiang Hang} Chen and Michel Bierlaire},
  title = {Passenger Centric Train Timetabling Problem},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2015},
  type = {Technical Report},
  number = {TRANSP-OR 150917},
  address = {Lausanne, Switzerland}}}

Maknoon Y., Sharif Azadeh S., Bierlaire M. (2015). Trajectory planning for small aircrafts. Report TRANSP-OR 150901


@TechReport{MakShaBi,
  author = {Yousef Maknoon and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {Trajectory planning for small aircrafts},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2015},
  type = {Technical Report},
  number = {TRANSP-OR 150901},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2018


@InProceedings{PacGenLurShaBie_STRC2018,
  author = {Meritxell Pacheco and Bernard Gendron and Virginie Lurkin and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {A Lagrangian relaxation technique for the demand-based benefit maximization problem},
  booktime = {Proceedings of the 18th Swiss Transport Research Conference (STRC), 16-18 May},
  year = {2018},
  address = {Ascona, Switzerland}}}

2017

Pacheco M., Sharif Azadeh S., Bierlaire M., Gendron B. (2017) Integrating advanced demand models within the framework of mixed integer linear problems: A Lagrangian relaxation method for the uncapacitated case. Proceedings of the 17th Swiss Transport Research Conference (STRC), 17-19 May, Ascona, Switzerland


@InProceedings{PacShaBieGen_STRC2017,
  author = {Meritxell Pacheco and Shadi {Sharif Azadeh} and Michel Bierlaire and Bernard Gendron},
  title = {Integrating advanced demand models within the framework of mixed integer linear problems: A Lagrangian relaxation method for the uncapacitated case},
  booktime = {Proceedings of the 17th Swiss Transport Research Conference (STRC), 17-19 May},
  year = {2017},
  address = {Ascona, Switzerland}}}

2016

Pacheco M., Sharif Azadeh S., Bierlaire M. (2016) A new mathematical representation of demand using choice-based optimization method. Proceedings of the 16th Swiss Transport Research Conference (STRC), 18-20 May, Ascona, Switzerland


@InProceedings{PacShaBie_STRC2016,
  author = {Meritxell Pacheco and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {A new mathematical representation of demand using choice-based optimization method},
  booktime = {Proceedings of the 16th Swiss Transport Research Conference (STRC), 18-20 May},
  year = {2016},
  address = {Ascona, Switzerland}}}


@InProceedings{Ulrich_STRC_2016,
  author = {Ulrich Wehres and Shadi {Sharif Azadeh} and Yousef Maknoon and Michel Bierlaire},
  title = {Modeling Uncertainty for a Catenary-free Electrical Bus},
  booktime = {Proceedings of the 16th Swiss Transportation Research Conference (STRC), May 19-20, 2016},
  year = {2016},
  address = {Ascona, Switzerland}}}

2015

Robenek T., Sharif Azadeh S., Bierlaire M. (2015) Evaluating the Quality of Railway Timetables from Passenger Point of View. Proceedings of the 13th Conference on Advanced Systems in Public Transport (CASPT2015), July 19 - 23, Rotterdam, The Netherlands


@InProceedings{Robenek_CASPT,
  author = {Tom\'a\v{s} Robenek and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {Evaluating the Quality of Railway Timetables from Passenger Point of View},
  booktime = {Proceedings of the 13th Conference on Advanced Systems in Public Transport (CASPT2015), July 19 - 23},
  year = {2015},
  address = {Rotterdam, The Netherlands}}}


@InProceedings{Binder_RailTokyo,
  author = {Stefan Binder and Yousef Maknoon and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {Generation and evaluation of passenger-oriented railway disposition timetables in case of severe disruptions},
  booktime = {Proceedings of the 6th International Conference on Railway Operations Modelling and Analysis (RailTokyo2015), March 23 {\textendash} 26},
  year = {2015},
  address = {Tokyo, Japan}}}


@InProceedings{Robenek_RailTokyo_2015,
  author = {Tom\'a\v{s} Robenek and Shadi {Sharif Azadeh} and {Jiang Hang} Chen and Michel Bierlaire and Yousef Maknoon},
  title = {The Ideal Train Timetabling Problem},
  booktime = {Proceedings of the 6th International Conference on Railway Operations Modelling and Analysis (RailTokyo2015), March 23 {\textendash} 26},
  year = {2015},
  address = {Tokyo, Japan}}}

Talks

2016

Sharif Azadeh S., Bierlaire M., Atasoy B., Ben-Akiva M. A choice-based optimization approach in flexible mobility on demand July 06, 2016. Euro 2016.


@Misc{Sharif_Euro_2016,
  author = {Shadi {Sharif Azadeh} and Michel Bierlaire and Bilge Atasoy and Moshe Ben-Akiva},
  title = {A choice-based optimization approach in flexible mobility

on demand},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Sharif_Euro_2016.pdf}},
  year = {2016},
  note = {Presented at Euro 2016}}}

Sharif Azadeh S., Bierlaire M. Choice-based routing problem in the context of flexible mobility on demand June 15, 2016. Tristan 2016, Aruba.


@Misc{Sharif_Tristan_2016,
  author = {Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {Choice-based routing problem in the context of flexible mobility on demand},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Sharif_Tristan_2016.pdf}},
  year = {2016},
  note = {Presented at Tristan 2016, Aruba}}}

2015

Sharif Azadeh S., Bierlaire M., Ben-Akiva M., Atasoy B. Choice based demand model in the context of flexible mobility on demand November 02, 2015. INFORMS Annual Meeting, Philadelphia, USA.


@Misc{Shadi_INFORMS_Philly,
  author = {Shadi {Sharif Azadeh} and Michel Bierlaire and Moshe Ben-Akiva and Bilge Atasoy},
  title = {Choice based demand model in the context of flexible mobility on demand},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Shadi_INFORMS_Philly.pdf}},
  year = {2015},
  note = {Presented at INFORMS Annual Meeting, Philadelphia, USA}}}

Sharif Azadeh S., Marcotte P., Bierlaire M. A new approach to airline and train demand modeling using registered transactions September 11, 2015. hEART 2015, DTU, Copenhagen, Denmark.


@Misc{Shadi_hEART_2015,
  author = {Shadi {Sharif Azadeh} and Patrice Marcotte and Michel Bierlaire},
  title = {A new approach to airline and train demand modeling using registered transactions},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Shadi_hEART_2015.pdf}},
  year = {2015},
  note = {Presented at hEART 2015, DTU, Copenhagen, Denmark}}}

Sharif Azadeh S., Marcotte P., Savard G., Bierlaire M. Passenger demand modeling under availability constraints and customer segmentation assumptions July 20, 2015. IATBR, Windsor, UK.


@Misc{Shadi_IATBR_2015,
  author = {Shadi {Sharif Azadeh} and Patrice Marcotte and Gilles Savard and Michel Bierlaire},
  title = {Passenger demand modeling under availability constraints and customer segmentation assumptions},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Shadi_IATBR_2015.pdf}},
  year = {2015},
  note = {Presented at IATBR, Windsor, UK}}}

Sharif Azadeh S., Maknoon Y., Bierlaire M. An optimization model to 3D route planning for air navigation systems July 13, 2015. EURO INFORMS, University of Strathclyde, Glasgow, Scotland.


@Misc{Shadi_EURO_2015,
  author = {Shadi {Sharif Azadeh} and Yousef Maknoon and Michel Bierlaire},
  title = {An optimization model to 3D route planning for air navigation systems},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Shadi_EURO_2015.pdf}},
  year = {2015},
  note = {Presented at EURO INFORMS, University of Strathclyde, Glasgow, Scotland}}}

Sharif Azadeh S., Marcotte P., Bierlaire M. Airline passenger behavior modeling in revenue management systems June 14, 2015. , Montreal, Canada.


@Misc{Shadi_CORS_2015,
  author = {Shadi {Sharif Azadeh} and Patrice Marcotte and Michel Bierlaire},
  title = {Airline passenger behavior modeling in revenue management systems},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Shadi_CORS_2015.pdf}},
  year = {2015},
  note = {Presented at , Montreal, Canada}}}

2014

Sharif Azadeh S. Impact of demand modeling in revenue management systems October 07, 2014. Workshop on Big Data, Polytechnique Montreal, Montreal.


@Misc{Shadi_Bigdata,
  author = {Shadi {Sharif Azadeh}},
  title = {Impact of demand modeling in revenue management systems},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Shadi_Bigdata.pdf}},
  year = {2014},
  note = {Presented at Workshop on Big Data, Polytechnique Montreal, Montreal}}}

Sharif Azadeh S. A global optimization method for demand modeling July 15, 2014. , Barcelona, Spain.


@Misc{SHARIF_IFORS_2014,
  author = {Shadi {Sharif Azadeh}},
  title = {A global optimization method for demand modeling},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/SHARIF_IFORS_2014.pdf}},
  year = {2014},
  note = {Presented at , Barcelona, Spain}}}

Sharif Azadeh S. Introducing a non-parametric method for customer behavior modeling June 19, 2014. EPFL, Workshop on discrete choice models, Lausanne.


@Misc{workshop_Shadi,
  author = {Shadi {Sharif Azadeh}},
  title = {Introducing a non-parametric method for customer behavior modeling},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/workshop_Shadi.pdf}},
  year = {2014},
  note = {Presented at EPFL, Workshop on discrete choice models, Lausanne}}}

Awards

2016

Shadi Sharif Azadeh. EU-Marie Curie EPFL fellowship.

Reviewing

Research projects

2016

Incorporating advanced behavioral models in mixed integer linear optimization

Discrete choice models are used for detailed representation of the "demand". However, their complexity makes mathematical formulations highly non convex in the explanatory variables. On the other hand, Mixed Integer Linear Programs (MILP) are optimization problems with discrete variables that are used in many applications to design and configure the "supply". In this project, we propose a new modeling framework that allows to include any random utility model in a mixed integer optimization formulation. The heterogeneity of demand is captured within the general choice model framework and the offers are tailored in a way that is beneficial for users as wells as providers. The main objective of the project is to obtain a framework that is both general, so that it can be applied in many applications, and operational, so that it can be used in practice.
- Apr 01, 2016 - Mar 31, 2019
- Sponsor: Swiss National Science Foundation
- Principal investigator: Michel Bierlaire
- Project manager: Shadi Sharif Azadeh
- Collaborator: Meritxell Pacheco
TRANS-FORM: Smart transfers through unravelling urban form and travel flow dynamics

TRANS-FORM, a cooperation between universities, industrial partners, public authorities and private operators, will develop, implement and test a data driven decision making tool that will support smart planning, and proactive and adaptive operations. The objective of the project is to better understand transferring dynamics in multi-modal public transport systems and develop insights, strategies and methods to support decision makers in transforming public transport usage to a seamless travel experience by using smart data. The tool will integrate new concepts and methods of behavioral modelling, passenger flow forecasting and network state predictions into real-time operations. TRANS-FORM is funded under the European Commission Horizon 2020 ERA-NET program.
- Mar 03, 2016 - Mar 03, 2019
- Sponsor: The Federal Department of the Environment, Transport, Energy and Communications (DETEC)
- Principal investigator: Michel Bierlaire
- Project managers: Shadi Sharif Azadeh, Riccardo Scarinci, Yuki Oyama
- Collaborators: Nicholas Molyneaux, Nikola Obrenovic

2015

myTOSA 2.0 - Enhanced simulation and optimization tool for cost-optimal deployment of TOSA electric buses

The TOSA catenary-free electric bus system is the ABB response to the challenge of decreasing the environmental impact of public transportation. The project builds on the previous CTI project - myTOSA - and it aims to introduce new business analytics features and to improve the fidelity of the simulation and (robust) optimization modules used for a cost-optimal deployment of the TOSA charging infrastructure and component sizing.
- Sep 30, 2015 - Nov 16, 2017
- Sponsor: Commission pour la technologie et de l'innovation, Office Fédéral de la formation professionnelle et de la technologie.
- Principal investigator: Michel Bierlaire
- Project managers: Riccardo Scarinci, Virginie Lurkin
- Collaborators: Shadi Sharif Azadeh, Yousef Maknoon
Demand-based facility location problem

The project aims at integrating demand models in a state-of-the-art mathematical model for Location-Routing Problem (LRP) in the context of energy. We are investigating different assumptions about the representation of the demand in the context of facility location and routing problem.
- Aug 01, 2015 - Dec 31, 2015
- Sponsor: EDF
- Principal investigator: Michel Bierlaire
- Project manager: Shadi Sharif Azadeh

2012

Modular Logistics Units in Shared Co-modal Networks

The objective is to achieve the first genuine contribution to the development of intercontinental logistics at the European level, in close coordination with North America partners and the international Physical Internet Initiative. The goal of the project is to enable operations with developed iso-modular logistics units of size adequate for real modal and co-modal flows of fast-moving consumer goods, providing a basis for an interconnected logistics system for 2030.
- Jul 01, 2012 - Jun 30, 2015
- Sponsor: European Commission
- Principal investigator: Michel Bierlaire
- Project managers: Shadi Sharif Azadeh, Yousef Maknoon

EPFL courses

Spring 2016

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Matthieu de Lapparent, Shadi Sharif Azadeh
- Teaching assistants: Anna Fernandez Antolin, Tom�s Robenek, Yousef Maknoon, Evanthia Kazagli
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2016/index.php
Enjeux mondiaux : Mobilit� A.
- Level: Bachelor
- Section: All sections
- Lecturer: Michel Bierlaire
- Teaching assistants: Stefan Binder, Shadi Sharif Azadeh
- Webpage: http://moodle.epfl.ch/course/view.php?id=13982

Fall 2015

Introduction � l'optimisation et � la recherche op�rationnelle.
- Level: Bachelor
- Sections: Civil Engineering, Mechanical Engineering, Environmental Sciences and Engineering, Electrical and Electronics Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Shadi Sharif Azadeh, Yousef Maknoon
- Webpage: http://moodle.epfl.ch/course/view.php?id=14491

Spring 2015

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Matthieu de Lapparent, Shadi Sharif Azadeh
- Teaching assistants: Evanthia Kazagli, Anna Fernandez Antolin, Iliya Markov, Yousef Maknoon
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2015/index.php

Fall 2014

Introduction � l'optimisation.
- Level: Bachelor
- Sections: Civil Engineering, Environmental Sciences and Engineering, Mechanical Engineering, Electrical and Electronics Engineering
- Lecturer: Michel Bierlaire
- Teaching assistant: Shadi Sharif Azadeh
- Webpage: http://transp-or.epfl.ch/courses/opti2014

Various lectures

2016

Demand modeling in revenue management .
- New Paradigms in Revenue Management: Methods and Applications, University of Maryland, Maryland, USA
- May 25, 2016 - May 27, 2016
- Lecturer: Shadi Sharif Azadeh

PhD supervision

Meritxell Pacheco, A general framework for the integration of complex choice models into mixed integer optimization.

Master theses

2015-2016

Decision making for human resource training and allocation, Guillaume Lopez (Civil Engineering)
- Supervision: Yousef Maknoon, Shadi Sharif Azadeh, Michel Bierlaire
- External expert:
Robust Design of a Single Line Electrical Bus, Ulrich Wehres (Civil Engineering)
- Supervision: Shadi Sharif Azadeh, Yousef Maknoon, Michel Bierlaire
- External expert:

2014-2015

Optimization of arrivals and departure ow management at congested airports, Guilhem Pujol (None)
- Supervision: Shadi Sharif Azadeh, Michel Bierlaire, Tomás Robenek
- External expert:

Semester projects

2016

Analysis of External Effects on Cyclicity in Passenger Railway Service, Lucia Montero (Computational science and engineering)

Supervision: Tomás Robenek, Shadi Sharif Azadeh
In the passenger railway service, cyclicity is in general perceived as a beneficial attribute. The main allegation being memorability of such timetables by the passengers. However no quantitative proof has been presented to support such statement. In this project, the student will become familiar with a passenger satisfaction (that is based on utility theory) and further extend this concept by the attribute expressing the perception of the cyclicity. Student will then solve an optimization problem maximizing the passenger satisfaction and/or train operating company's profit. The benchmark will be done on a small part of Swiss network, followed by a test on a full scale network of Israeli Railways. Basic knowledge of programming is required.

Strategic Energy Planning under Uncertainty, Cyprien Say (Civil Engineering)

Supervision: Stefano Moret, Shadi Sharif Azadeh, Michel Bierlaire
The main goal of the project is to classify parameter uncertainty (i.e. defining ranges of variations or probability distribution functions) for the Swiss energy system in the year 2035 and evaluate its impact on energy planning decisions.

2014-2015

Planning tool for the admission of medical graduates into the Otolaryngology training program in the CHUV, Guillaume Lopez

Supervision: Yousef Maknoon, Shadi Sharif Azadeh, Michel Bierlaire

2014

3D routing approach for air navigation planning for small sized planes, Jamal El Rhazi (Civil Engineering)

Supervision: Shadi Sharif Azadeh, Michel Bierlaire, Stefan Binder
This projects aims to study and visualize the aviation data using factors such as, geographical information of the plane as well as weather condition for a flight most specifically during cruise phase. MATLAB is a powerful software with high quality of visualization of data, however, when the size of data gets bigger, the performance of MATLAB degrades and it becomes slower. Recently, some new software such as, Tableau has been introduced that provide powerful tools to visualize the big data.

Riccardo Scarinci

Riccardo Scarinci has been a member of the laboratory from Oct 15, 2013 to Nov 30, 2018

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Riccardo Scarinci.

Journal articles

2021

Molyneaux N., Scarinci R., Bierlaire M. (2021). Design and analysis of control strategies for pedestrian flows. Transportation 48 :1767-1807


@Article{MolyScarBier20,
  author = {Nicholas Molyneaux and Riccardo Scarinci and Michel Bierlaire},
  title = {Design and analysis of control strategies for pedestrian flows},
  journal = {Transportation},
  year = {2021},
  volume = {48},
  pages = {1767-1807},
  DOI = {10.1007/s11116-020-10111-1},
  note = {Accepted on Apr 18, 2020}}}

2019

Scarinci R., Zanarini A., Bierlaire M. (2019). Electrification of urban mobility: the case of catenary-free buses. Transport Policy 80 :39-48


@Article{ScarZanaBier19,
  author = {Riccardo Scarinci and Alessandro Zanarini and Michel Bierlaire},
  title = {Electrification of urban mobility: the case of catenary-free buses},
  journal = {Transport  Policy},
  year = {2019},
  volume = {80},
  pages = {39-48},
  DOI = {10.1016/j.tranpol.2019.05.006},
  note = {Accepted on May 04, 2019}}}

Nikolic M., Bierlaire M., de Lapparent M., Scarinci R. (2019). Multi-class speed-density relationship for pedestrian traffic. Transportation Science 53 (3):642-664


@Article{NikBieLapSca_2018_TS,
  author = {Marija Nikolic and Michel Bierlaire and Matthieu {de Lapparent} and Riccardo Scarinci},
  title = {Multi-class speed-density relationship for pedestrian traffic},
  journal = {Transportation Science},
  year = {2019},
  volume = {53},
  number = {3},
  pages = {642-664},
  DOI = {10.1287/trsc.2018.0849},
  note = {Accepted on Apr 30, 2018}}}

2017

Scarinci R., Hegyi A., Heydecker B. (2017). Definition of a Merging Assistant Strategy Using Intelligent Vehicles. Transportation Research Part C: Emerging Technologies 82 :161�179


@Article{ScaHegHey17,
  author = {Riccardo Scarinci and Andreas Hegyi and Benjamin Heydecker},
  title = {Definition of a Merging Assistant Strategy Using Intelligent Vehicles},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2017},
  volume = {82},
  pages = {161{\textendash}179},
  DOI = {10.1016/j.trc.2017.06.017},
  note = {Accepted on Jul 01, 2017}}}

Scarinci R., Rast F., Bierlaire M. (2017). Needed reduction in mobility energy consumption to meet the goal of a 2000-watt society. Transportation Research Part A: Policy and Practice 101 ():133-148

Greenhouse gas emissions related to energy production is the main cause of climate change. Transportation accounts for 30% of the total energy consumption, and a reduction in the energy used for mobility is necessary. The 2000-watt society is an environmental concept that fixes a sustainable limit to the energy consumption in different sectors, including mobility. This paper evaluates the energy consumption in several mobility scenarios, and it assesses whether the goal suggested by the 2000-watt society is achievable. We investigate the social characteristics and travel habits of the population living in a case study area. Then, we calculate the modal shift induced by transportation policies such as car-sharing, car-pooling and car-free district. We evaluate the resulting energy consumption, and we compare it with the 2000-watt society limit. We conclude that only a set of measures combining car usage reduction, increase in walking and cycling, and reduction in the total travel distance can achieve the needed energy reduction.
```
@Article{ScaRasBie_2017,
  author = {Riccardo Scarinci and Frederic Rast and Michel Bierlaire},
  title = {Needed reduction in mobility energy consumption to meet the goal of a 2000-watt society},
  journal = {Transportation Research Part A: Policy and Practice},
  year = {2017},
  volume = {101},
  pages = {133-148},
  DOI = {10.1016/j.tra.2017.05.010},
  note = {Accepted on May 03, 2017}}}
```
Scarinci R., Markov I., Bierlaire M. (2017). Network design of a transport system based on accelerating moving walkways. Transportation Research Part C: Emerging Technologies 80 :310�328

Pollution, congestion and urbanistic considerations are leading to a change in the use of private vehicles in dense city centers. More frequently, the last-mile is covered with systems such as public transport, car sharing and bike sharing as well as an increase in walking and cycling. Following this trend, we assume a hypothetical scenario where the use of private cars is strongly limited in dense urban areas, and innovative transport modes must be used. This work investigates a futuristic system based on a network of accelerating moving walkways (AMW) to facilitate the movement of pedestrians in city centers where cars have been banned. Unlike constant speed moving walkways, AMWs can reach speeds of up to 15km/h thanks to an acceleration section. This paper presents a rigorous description of the system characteristics from a transportation point of view, develops a heuristic algorithm for the network design problem, and tests it on a real case study. Given a network of urban roads and an origin-destination demand, the optimization algorithm, which combines traffic assignment and supply modification, explores the trade-off curve between the total travel time and capital cost of the infrastructure. The results give practical insight on the possible dimensioning of the system, show the optimal network designs, and how these vary with a reduction of the available budget. This paper investigates for the first time the use of AMWs at a network scale, and provides results useful for analyzing the system feasibility. The results on travel time, investment budget and payback period indicates that AMWs could be an effective mode of transport in cities.
```
@Article{ScaMarBie_2017,
  author = {Riccardo Scarinci and Iliya Markov and Michel Bierlaire},
  title = {Network design of a transport system based on accelerating moving walkways},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2017},
  volume = {80},
  pages = {310{\textendash}328},
  DOI = {10.1016/j.trc.2017.04.016},
  note = {Accepted on Apr 19, 2017}}}
```
Scarinci R., Bahrami F., Ourednik A., Bierlaire M. (2017). An exploration of moving walkways as a transport system in urban centers. European Journal of Transport and Infrastructure Research 17 (2):191-206

Moving walkways (MW) have been imagined as a possible means of transport since the late 19th century, and this system has fascinated urban planners and engineers ever since. Contrary to what has been imagined, moving walkways are only used in transportation hub corridors, and not as a main transport mode in city centers. Today however, MWs are receiving increasing attention as a possible solution to congestion and pollution, as well as a catalyst for soft mobility. This paper explores the role of moving walkways as a transport system, and it presents an optimized design of a network of MWs in a city center. We review historical MWs, current installations and future possibilities, using different perspectives, from geography to urban planning to transport engineering. We discuss the way in which MWs influence how people inhabit the urban space, and we review this system in the context of history of urban planning. Then, we describe a technological development called accelerating moving walkways (AMW), i.e. MWs able to reach a higher speed than traditional ones. We develop an optimization framework to design a network of AMWs, and we apply it to a real case study. The results of the network design are a reference useful to discuss the feasibility of the system starting from an engineering perspective. We conclude that the use of MWs can facilitate the flexibility and spontaneity typical of pedestrian movements, and this system could be integrated in the mix of urban transport modes in city centers.
```
@Article{ScaBahOurBie_2017,
  author = {Riccardo Scarinci and Farzaneh Bahrami and Andr\'e Ourednik and Michel Bierlaire},
  title = {An exploration of moving walkways as a transport system in urban centers},
  journal = {European Journal of Transport and Infrastructure Research},
  year = {2017},
  volume = {17},
  number = {2},
  pages = {191-206},
  DOI = {10.18757/ejtir.2017.17.2.3190},
  note = {Accepted on Jan 11, 2017}}}
```

2016

Hänseler F., Bierlaire M., Scarinci R. (2016). Assessing the usage and level-of-service of pedestrian facilities in train stations: A Swiss case study. Transportation Research Part A: Policy and Practice 89 :106-123


@Article{HaenBierScar16,
  author = {Flurin H\"anseler and Michel Bierlaire and Riccardo Scarinci},
  title = {Assessing the usage and level-of-service of pedestrian facilities in train stations: A Swiss case study},
  journal = {Transportation Research Part A: Policy and Practice},
  year = {2016},
  volume = {89},
  pages = {106-123},
  DOI = {10.1016/j.tra.2016.05.010},
  note = {Accepted on May 16, 2016}}}

2015

Scarinci R., Heydecker B., Hegyi A. (2015). Analysis of Traffic Performance of a Merging Assistant Strategy Using Cooperative Vehicles. IEEE Transactions on Intelligent Transportation Systems 16 (4):2094-2103


@Article{ScaHeyHeg15,
  author = {Riccardo Scarinci and Benjamin Heydecker and Andreas Hegyi},
  title = {Analysis of Traffic Performance of a Merging Assistant Strategy Using Cooperative Vehicles},
  journal = {IEEE Transactions on Intelligent Transportation Systems},
  year = {2015},
  volume = {16},
  number = {4},
  pages = {2094-2103},
  DOI = {10.1109/TITS.2015.2394772}}}

2014

Scarinci R., Heydecker B. (2014). Control concepts for facilitating motorway on-ramp merging using intelligent vehicles. Transport Reviews 34 (6):775-797


@Article{ScaHey14,
  author = {Riccardo Scarinci and Benjamin Heydecker},
  title = {Control concepts for facilitating motorway on-ramp merging using intelligent vehicles},
  journal = {Transport Reviews},
  year = {2014},
  volume = {34},
  number = {6},
  pages = {775-797},
  DOI = {10.1080/01441647.2014.983210}}}

Book chapters

2020


@InProceedings{BierScarNikoOyamMolyWang20,
  author = {Michel Bierlaire and Riccardo Scarinci and Marija Nikolic and Yuki Oyama and Nicholas Molyneaux and Zengchao Wang},
  title = {Methodologies for understanding and improving pedestrian mobility},
  year = {2020},
  booktile = {Handbook of Urban Mobilities},
  editor = {Ole B. Jensen and  Claus Lassen and  Vincent Kaufmann and  Malene Freudendal-Pedersen and  Ida Sofie G{\o}tzsche Lange},
  series = {Routledge International Handbooks},
  publisher = {Routledge}}}

Technical reports

2019

Molyneaux N., Scarinci R., Bierlaire M. (2019). Design and analysis of control strategies for pedestrian flows. Report TRANSP-OR 191031


@TechReport{MolyScarBier19,
  author = {Nicholas Molyneaux and Riccardo Scarinci and Michel Bierlaire},
  title = {Design and analysis of control strategies for pedestrian flows},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2019},
  type = {Technical Report},
  number = {TRANSP-OR 191031},
  address = {Lausanne, Switzerland}}}

2018

Scarinci R., Zanarini A., Bierlaire M. (2018). Electrification of urban mobility: the case of catenary-free buses. Report TRANSP-OR 181030


@TechReport{ScaZanBie_myTOSA_2018,
  author = {Riccardo Scarinci and Alessandro Zanarini and Michel Bierlaire},
  title = {Electrification of urban mobility: the case of catenary-free buses},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2018},
  type = {Technical Report},
  number = {TRANSP-OR 181030},
  address = {Lausanne, Switzerland}}}

2017

Scarinci R., Markov I., Bierlaire M. (2017). Network design of a transport system based on accelerating moving walkways. Report TRANSP-OR 170123


@TechReport{ScaMarBie_AMWopt_2017,
  author = {Riccardo Scarinci and Iliya Markov and Michel Bierlaire},
  title = {Network design of a transport system based on accelerating moving walkways},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2017},
  type = {Technical Report},
  number = {TRANSP-OR 170123},
  address = {Lausanne, Switzerland}}}

Nikolic M., Bierlaire M., de Lapparent M., Scarinci R. (2017). Multi-class speed-density relationship for pedestrian traffic. Report TRANSP-OR 170115


@TechReport{NikBieLapSca_MCVK_2017,
  author = {Marija Nikolic and Michel Bierlaire and Matthieu {de Lapparent} and Riccardo Scarinci},
  title = {Multi-class speed-density relationship for pedestrian traffic},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2017},
  type = {Technical Report},
  number = {TRANSP-OR 170115},
  address = {Lausanne, Switzerland}}}

2016

Scarinci R., Bahrami F., Ourednik A., Bierlaire M. (2016). An exploration of moving walkways as a transport system in urban centers. Report TRANSP-OR 160810


@TechReport{ScaBahOurBie_AMWpolicy_2016,
  author = {Riccardo Scarinci and Farzaneh Bahrami and Andr\'e Ourednik and Michel Bierlaire},
  title = {An exploration of moving walkways as a transport system in urban centers},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2016},
  type = {Technical Report},
  number = {TRANSP-OR 160810},
  address = {Lausanne, Switzerland}}}

Scarinci R., Rast F., Bierlaire M. (2016). Evaluation of the energy consumption in different mobility scenarios to meet the goal of a 2000-watt society. Report TRANSP-OR 130916


@TechReport{ScaRasBie_SolarDecathlon_2016,
  author = {Riccardo Scarinci and Frederic Rast and Michel Bierlaire},
  title = {Evaluation of the energy consumption in different mobility scenarios to meet the goal of a 2000-watt society},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2016},
  type = {Technical Report},
  number = {TRANSP-OR 130916},
  address = {Lausanne, Switzerland}}}

2015

Hänseler F., Bierlaire M., Scarinci R. (2015). Assessing the usage and level-of-service of pedestrian facilities in train stations: A Swiss case study. Report TRANSP-OR 151008


@TechReport{HaBiSc_2015,
  author = {Flurin H\"anseler and Michel Bierlaire and Riccardo Scarinci},
  title = {Assessing the usage and level-of-service of pedestrian facilities in train stations: A Swiss case study},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2015},
  type = {Technical Report},
  number = {TRANSP-OR 151008},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2019

Molyneaux N., Scarinci R., Bierlaire M. (2019) The impact of counter-flow on pedestrian walking times. Proceedings of the 19th Swiss Transport Research Conference (STRC), 15-17 May, Ascona, Switzerland


@InProceedings{MolScaBie_STRC2019,
  author = {Nicholas Molyneaux and Riccardo Scarinci and Michel Bierlaire},
  title = {The impact of counter-flow on pedestrian walking times},
  booktime = {Proceedings of the 19th Swiss Transport Research Conference (STRC), 15-17 May},
  year = {2019},
  address = {Ascona, Switzerland}}}

Molyneaux N., Scarinci R., Bierlaire M. (2019) Improving pedestrian dynamics by preventing counter-flow. Proceedings of the Tenth Triennial Symposium on Transportation Analysis (TRISTAN X), 17-21 June, Hamilton Island, Australia


@InProceedings{MolScaBie_TRISTAN_2019,
  author = {Nicholas Molyneaux and Riccardo Scarinci and Michel Bierlaire},
  title = {Improving pedestrian dynamics by preventing counter-flow},
  booktime = {Proceedings of the Tenth Triennial Symposium on Transportation Analysis (TRISTAN X), 17-21 June},
  year = {2019},
  address = {Hamilton Island, Australia}}}

2018

Molyneaux N., Scarinci R., Bierlaire M. (2018) Controlling Pedestrian Flows Using a Dynamic Traffic Management System. Proceedings of the 7th International Symposium on Dynamic Traffic Assignment: Smart Transportation (DTA), 6-8 June, Hong Kong, China


@InProceedings{MolScaBie_DTA2018,
  author = {Nicholas Molyneaux and Riccardo Scarinci and Michel Bierlaire},
  title = {Controlling Pedestrian Flows Using a Dynamic Traffic Management System},
  booktime = {Proceedings of the 7th International Symposium on 

Dynamic Traffic Assignment: Smart Transportation (DTA), 6-8 June},
  year = {2018},
  address = {Hong Kong, China}}}

Jeanbart C., Molyneaux N., Scarinci R., Bierlaire M. (2018) Network design of moving walkways in transportation hubs. Proceedings of the 18th Swiss Transport Research Conference (STRC), 16-18 May, Ascona, Switzerland


@InProceedings{JeaMolScaBie_STRC2018,
  author = {Charles Jeanbart and Nicholas Molyneaux and Riccardo Scarinci and Michel Bierlaire},
  title = {Network design of moving walkways in transportation hubs},
  booktime = {Proceedings of the 18th Swiss Transport Research Conference (STRC), 16-18 May},
  year = {2018},
  address = {Ascona, Switzerland}}}

Molyneaux N., Scarinci R., Bierlaire M. (2018) Two management strategies for improving passenger transfer experience in train stations . Proceedings of the 18th Swiss Transport Research Conference (STRC), 16-18 May, Ascona, Switzerland


@InProceedings{MolScaBie_STRC2018,
  author = {Nicholas Molyneaux and Riccardo Scarinci and Michel Bierlaire},
  title = {Two management strategies for improving passenger transfer experience in train stations },
  booktime = {Proceedings of the 18th Swiss Transport Research Conference (STRC), 16-18 May},
  year = {2018},
  address = {Ascona, Switzerland}}}

2017

Molyneaux N., Scarinci R., Bierlaire M. (2017) Pedestrian management strategies for improving flow dynamics in transportation hubs. Proceedings of the 17th Swiss Transport Research Conference (STRC), 17-19 May, Ascona, Switzerland


@InProceedings{MolScaBie_STRC2017,
  author = {Nicholas Molyneaux and Riccardo Scarinci and Michel Bierlaire},
  title = {Pedestrian management strategies for improving flow dynamics in transportation hubs},
  booktime = {Proceedings of the 17th Swiss Transport Research Conference (STRC), 17-19 May},
  year = {2017},
  address = {Ascona, Switzerland}}}

2015

Hänseler F., Bierlaire M., Molyneaux N., Scarinci R., Thémans M. (2015) Modeling pedestrian flows in train stations: The example of Lausanne railway station. Proceedings of the Swiss Transportation Research Conference (STRC), April 15-17, Ascona, Switzerland


@InProceedings{Flurin_STRC_2015,
  author = {Flurin H\"anseler and Michel Bierlaire and Nicholas Molyneaux and Riccardo Scarinci and Micha\"el Th\'emans},
  title = {Modeling pedestrian flows in train stations: The example of Lausanne railway station},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), April 15-17},
  year = {2015},
  address = {Ascona, Switzerland}}}

2014

Scarinci R., Lopez G., Chen J., Bierlaire M. (2014) Optimization of the network design of a futuristic transport system based on moving walkways. Proceedings of the Swiss Transportation Research Conference (STRC), 14 - 16 May, Ascona, Switzerland


@InProceedings{Scarinci2014_STRC,
  author = {Riccardo Scarinci and Guillaume Lopez and {Jiang Hang} Chen and Michel Bierlaire},
  title = {Optimization of the network design of a futuristic transport system based on moving walkways},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), 14 - 16 May},
  year = {2014},
  address = {Ascona, Switzerland}}}

Talks

2017

Scarinci R., Bierlaire M., Zanarini A. Hybrid traffic simulation of an innovative catenary-free electric bus service September 12, 2017. 6th Symposium of the European Association for Research in Transportation, Faculty of Civil and Environmental Engineering, Technion, Haifa, Israel.


@Misc{Sca_hEART2017,
  author = {Riccardo Scarinci and Michel Bierlaire and Alessandro Zanarini},
  title = {Hybrid traffic simulation of an innovative catenary-free electric bus service},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Sca_hEART2017.pdf}},
  year = {2017},
  note = {Presented at 6th Symposium of the European Association for Research in Transportation, Faculty of Civil and Environmental Engineering, Technion, Haifa, Israel}}}

2016

Scarinci R., Markov I., Bierlaire M. Network design of a transport system based on accelerating moving walkways June 15, 2016. Ninth Triennial Symposium on Transportation Analysis TRISTAN IX, Oranjestad, Aruba.


@Misc{Scarinci_TRISTAN2016,
  author = {Riccardo Scarinci and Iliya Markov and Michel Bierlaire},
  title = {Network design of a transport system based on accelerating moving walkways},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Scarinci_TRISTAN2016.pdf}},
  year = {2016},
  note = {Presented at Ninth Triennial Symposium on Transportation Analysis TRISTAN IX, Oranjestad, Aruba}}}

Scarinci R., Nikolic M., Danalet A., Bierlaire M. Pedestrians in transportation hubs: movement and behavior in the era of big data April 21, 2016. Verkehr Aktuell - TUM Speaker's series at Deutsches Museum, Technical University of Munich TUM, Munich, Germany.


@Misc{RS-TUM2016,
  author = {Riccardo Scarinci and Marija Nikolic and Antonin Danalet and Michel Bierlaire},
  title = {Pedestrians in transportation hubs: movement and behavior in the era of big data},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/RS-TUM2016.pdf}},
  year = {2016},
  note = {Presented at Verkehr Aktuell - TUM Speaker's series at Deutsches Museum, Technical University of Munich TUM, Munich, Germany}}}

2015

Scarinci R., Bierlaire M. Mobility in a Post-Car World: investigating a transport system based on Accelerated Moving Walkways October 02, 2015. Master course "On the road" , Laboratory of Urbanism Lab-U, École Polytechnique Fédérale de Lausanne EPFL, Lausanne Switzerland.


@Misc{RS-LabU15,
  author = {Riccardo Scarinci and Michel Bierlaire},
  title = {Mobility in a Post-Car World: investigating a transport system based on Accelerated Moving Walkways},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/RS-LabU15.pdf}},
  year = {2015},
  note = {Presented at Master course \"On the road\" , Laboratory of Urbanism Lab-U, \École Polytechnique F\éd\érale de Lausanne EPFL, Lausanne Switzerland}}}

Scarinci R., Bahrami F., Ourednik A., Bierlaire M. Moving walkways: from a past science-fiction transport system to future reality September 17, 2015. The Future of Mobilities, T2M Cosmobilities, Caserta, Italy.


@Misc{RS-Caserta15,
  author = {Riccardo Scarinci and Farzaneh Bahrami and Andr\'e Ourednik and Michel Bierlaire},
  title = {Moving walkways: from a past science-fiction transport system to future reality},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/RS-Caserta15.pdf}},
  year = {2015},
  note = {Presented at The Future of Mobilities, T2M Cosmobilities, Caserta, Italy}}}

Scarinci R., Markov I., Bierlaire M. Accelerating Moving Walkways: Optimization of an Innovative Transport System for Dense Urban Areas September 11, 2015. 4th Symposium of the European Association for Research in Transportation hEART, Technical University of Denmark, Copenhagen, Denmark.


@Misc{RS-hEART15,
  author = {Riccardo Scarinci and Iliya Markov and Michel Bierlaire},
  title = {Accelerating Moving Walkways: Optimization of an Innovative Transport System for Dense Urban Areas},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/RS-hEART15.pdf}},
  year = {2015},
  note = {Presented at 4th Symposium of the European Association for Research in Transportation hEART, Technical University of Denmark, Copenhagen, Denmark}}}

Scarinci R., Danalet A., Hänseler F., Nikolic M., Bierlaire M. Pedestrian research at TRANSP-OR: from fundamental indexes to behavioral modeling February 27, 2015. Saudi Arabia delegation from Mecca visit at EPFL, Transportation Center (TraCE), EPFL, Lausanne, Switzerland.


@Misc{RS-SaudiaArabia,
  author = {Riccardo Scarinci and Antonin Danalet and Flurin H\"anseler and Marija Nikolic and Michel Bierlaire},
  title = {Pedestrian research at TRANSP-OR: from fundamental indexes to behavioral modeling},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/RS-SaudiaArabia.pdf}},
  year = {2015},
  note = {Presented at Saudi Arabia delegation from Mecca visit at EPFL, Transportation Center (TraCE), EPFL, Lausanne, Switzerland}}}

2014

Scarinci R., Rojanawisut B., Markov I., Bierlaire M., Lopez G., Chen J. Optimization of the network design of a futuristic transport system based on accelerated moving walkways October 31, 2014. Master course "On the road" LAB-U, EPFL, Lausanne, Switzerland.


@Misc{Scarinci2014_LabU,
  author = {Riccardo Scarinci and Bastien Rojanawisut and Iliya Markov and Michel Bierlaire and Guillaume Lopez and {Jiang Hang} Chen},
  title = {Optimization of the network design of a futuristic transport system based on accelerated moving walkways},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Scarinci2014_LabU.pdf}},
  year = {2014},
  note = {Presented at Master course \"On the road\" LAB-U, EPFL, Lausanne, Switzerland}}}

Scarinci R., Lopez G., Chen J., Bierlaire M. Optimization of the network design of a futuristic transport system based on moving walkways May 16, 2014. 14th Swiss Transportation Research Conference, Ascona, Switzerland.


@Misc{Scarinci2014_STRC,
  author = {Riccardo Scarinci and Guillaume Lopez and {Jiang Hang} Chen and Michel Bierlaire},
  title = {Optimization of the network design of a futuristic transport system based on moving walkways},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Scarinci2014_STRC.pdf}},
  year = {2014},
  note = {Presented at 14th Swiss Transportation Research Conference, Ascona, Switzerland}}}

Awards

2018

Riccardo Scarinci. Global Transport Hackathon Dubai. Fast Moving Walkways for a sustainable future., Roads and Transport Authority of the Emirate of Dubai (RTA) and Youth For Public Transport (Y4PT) Foundation, with the support of the International Association of Public Transport (UITP).

2017

Riccardo Scarinci. European Transport Innovation Challenge Winner, creating innovative and sustainable mobility solutions, European Commission, Directorate-General for Mobility and Transport, Strasbourg, France.

2016

Riccardo Scarinci, Iliya Markov, Michel Bierlaire. Green Transportation Award, for the extended abstract and presentation "Network design of a transport system based on accelerating moving walkways". Triennial Symposium on Transportation Analysis TRISTAN IX, 12-17/06/2016 Oranjestad, Aruba..

Reviewing

Research projects

2018

Accessibility based optimization of educational infrastructure networks

The aim of this project is to propose a methodology to assess and optimize educational infrastructure networks based on accessibility. In 2014, the World Bank launched the Global Program for Safer Schools (GPSS) with a focus on integrating risk reduction considerations into education infrastructure policies and investments. The GPSS aims to boost and facilitate informed, large-scale investments for the safety and resilience of new and existing school infrastructure at risk from natural hazards, contributing to high-quality learning environments. Understanding accessibility of school infrastructure networks is an important element to optimize risk reduction interventions as well as to improve the quality and efficiency of the educational service. To support this goal, the Transportation and Mobility Laboratory proposes a methodology to assess and optimize educational infrastructure networks based on accessibility; and proposes solutions to improve the performance of educational infrastructure networks. In other words, researchers will evaluate the risks based on the school network, including parameters like transportation network, home location of the students, mobility patterns... They will then provide a methodology in order to help direct investments to reduce the risks in case of disaster.
- Jan 01, 2018 - Dec 31, 2018
- Sponsor: World Bank
- Principal investigator: Michel Bierlaire
- Project manager: Riccardo Scarinci

2015

myTOSA 2.0 - Enhanced simulation and optimization tool for cost-optimal deployment of TOSA electric buses

The TOSA catenary-free electric bus system is the ABB response to the challenge of decreasing the environmental impact of public transportation. The project builds on the previous CTI project - myTOSA - and it aims to introduce new business analytics features and to improve the fidelity of the simulation and (robust) optimization modules used for a cost-optimal deployment of the TOSA charging infrastructure and component sizing.
- Sep 30, 2015 - Nov 16, 2017
- Sponsor: Commission pour la technologie et de l'innovation, Office Fédéral de la formation professionnelle et de la technologie.
- Principal investigator: Michel Bierlaire
- Project managers: Riccardo Scarinci, Virginie Lurkin
- Collaborators: Shadi Sharif Azadeh, Yousef Maknoon

2014

Drive For You: a driving assistant tool to detecting pedestrians

This project aims to develop an onboard pedestrian tracking system to assist the driver detect them and, ultimately, to increase security. The project, with a duration of four years, will focus on pedestrians detection, tracking and trajectory prediction, and will be will be closely related to vehicle command strategies. The project is part of the automated driving research Chair "Drive for you" led by MINES ParisTech in partnership with French industrialists and three prestigious academic institutions the Ecole Polytechnique F�d�rale de Lausanne EPFL (Switzerland), the University of Shanghai Jiao Tong (China) and the University of Berkeley (USA). Supported by the Foundation MINES ParisTech, with Valeo industrial, PSA Peugeot Citro�n and Safran contributing 3.7 million euros in funds, the Chair will work for five years on the subject of automated driving. The three main objectives are expand knowledge of self-driving vehicles, develop intelligent onboard systems, get self-driving vehicles on the road in Asia, Europe and the United States.
- Dec 01, 2014 - Nov 30, 2018
- Sponsor: MINES ParisTech
- Principal investigator: Michel Bierlaire
- Project manager: Riccardo Scarinci

2013

PostCarWorld: A Trans-Discplinary Multi-Dimensional Stimulation

The goal of this project is to explore the future of mobility through the role of the car. The main originality of this research is to raise the following problem: �What, if the world were a post-car world�. The basic idea is to define a hypothetical situation where the place of the car would have been dramatically reduced and to use qualitative and quantitative simulation methods to examine the consequences of this initial hypothesis. The research is based on the idea that by simulating the future through scenarios we can understand the present better. This project is fully interdisciplinary and trans-disciplinary. It brings together social sciences, engineering sciences, urban planning and urban design in six different laboratories associated to three different universities. The role of TRANSP-OR in this project is to study and optimize an innovative transport system based on accelerated moving walkways (AMW). Differently from constant moving walkways, AMW can reach speeds up to 15km/h thanks to an acceleration section. The project aims to identify the optimal design of a network of AMW using optimization. A network of accelerated moving walkway in a car-free urban environment may present an innovative solution, and this project could delineate the system feasibility.
- Dec 01, 2013 - Nov 30, 2016
- Sponsor: Swiss National Science Foundation
- Principal investigator: Michel Bierlaire
- Project manager: Riccardo Scarinci

EPFL courses

Spring 2018

Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Yuki Oyama, Nikola Obrenovic, Riccardo Scarinci
- Teaching assistants: Gael Lederrey, Zhengchao Wang
- Webpage: http://transp-or.epfl.ch/courses/OptSim2018/

Spring 2017

Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Riccardo Scarinci
- Teaching assistants: Marija Nikolic, Stefan Binder
- Webpage: http://transp-or.epfl.ch/courses/OptSim2017/

Spring 2016

Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Riccardo Scarinci, Yousef Maknoon
- Teaching assistants: Iliya Markov, Marija Nikolic
- Webpage: http://transp-or.epfl.ch/courses/OptSim2016/
Semaine ENAC "Remix Public Space".
- Level: Bachelor
- Sections: Environmental Sciences and Engineering, Architecture, Civil Engineering
- Lecturer: Riccardo Scarinci
- Webpage: http://enac.epfl.ch/projeter-ensemble/semaine-ENAC

Spring 2015

Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Riccardo Scarinci, Yousef Maknoon
- Teaching assistants: Tom�s Robenek, Marija Nikolic
- Webpage: http://transp-or.epfl.ch/courses/OptSim2015/

Spring 2014

Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Riccardo Scarinci, Jianghang Chen
- Teaching assistants: Tom�s Robenek, Marija Nikolic
- Webpage: http://transp-or.epfl.ch/courses/OptSim2014/

Master theses

2017-2018

Moving walkways in train stations, Charles Jeanbart (Civil Engineering)
- Supervision: Nicholas Molyneaux, Riccardo Scarinci, Michel Bierlaire
- External expert: TBD

2017

Simulator for fleet of autonomous vehicles, Demotz Vincent (Computer science)
- Supervision: Riccardo Scarinci, Yuki Oyama, Michel Bierlaire
- External expert: Bastien Rojanawisut

2016-2017

Information system for passenger discretionary activities in transport terminals, Federico Orsini (None)
- Supervision: Riccardo Scarinci, Marija Nikolic, Michel Bierlaire
- External expert: Riccardo Rossi

2015-2016

Towards Solar Decathlon: evaluation of different mobility scenarios, Frédéric Rast (Environmental Sciences and Engineering)
- Supervision: Riccardo Scarinci, Michel Bierlaire
- External expert: Philippe Couty

2014-2015

Optimisation of the network design of a futuristic transport system based on accelerated moving walkways, Bastien Rojanawisut (Mathematics)
- Supervision: Riccardo Scarinci, Iliya Markov, Michel Bierlaire
- External expert: Sacha Varone

Semester projects

2018

Optimization of school accessibility in developing countries, Yassine El Ouazzani, Oliver Mathias Buschor (Civil Engineering)

Supervision: Riccardo Scarinci, Meritxell Pacheco, Michel Bierlaire
The Global Program for Safer Schools (GPSS) focuses on risks linked to education infrastructure. The program aims to save lives and reduce the physical impact of disasters on school infrastructure. We are working with the Kyrgyz Republic Government to improve the capacity to respond to disasters, providing safer and quality learning environment for children, and managing the cost of disasters and climate shocks. This semester project/master thesis proposes a methodology to optimize educational infrastructure networks based on accessibility; and proposes solutions to improve the performance of educational infrastructure networks. In other words, it optimizes the location and the dimension of school buildings. Several factors are included such as transportation network, home location of the students and mobility patterns. The results is a methodology to suggest investments to reduce the risks in case of disaster. The cities of Bishkek in the Kyrgyz Republic is used as a case study. Methodologies from optimization, programming (Java) and geographical information system (GIS) will be used for completing this project.

Safer schools thanks to an improved transport access in developing countries, Zora Oswald

Supervision: Riccardo Scarinci, Meritxell Pacheco, Michel Bierlaire
The Global Program for Safer Schools (GPSS) focuses on risks linked to education infrastructure. The program aims to save lives and reduce the physical impact of disasters on school infrastructure. We are working with the Kyrgyz Republic Government to improve the capacity to respond to disasters, providing safer and quality learning environment for children, and managing the cost of disasters and climate shocks. This semester project/master thesis proposes a methodology to assess and optimize educational infrastructure networks based on accessibility; and proposes solutions to improve the performance of educational infrastructure networks. In other words, it evaluates the risks based on the school network, including parameters like transportation network, home location of the students and mobility patterns. The results is a methodology to suggest investments to reduce the risks in case of disaster. Two case studies will be carry on in the cities of Bishkek and Osh in the Kyrgyz Republic. Methodologies from transportation studies, geographical information system (GIS) and programming will be used for completing this project.

2017

Speed profile of an innovative catenary-free electric bus, Valentin Axel Olivier & Nicolet Adrien (Civil Engineering)

Supervision: Riccardo Scarinci, Virginie Lurkin, Michel Bierlaire
The TOSA bus system is a revolutionary catenary-free electric bus concept that includes small short-range on-board batteries and a series of fully automated fast charging stations installed at some bus stops. The automatic fast-charging stations partially replenish the bus batteries in a few seconds whenever a bus arrives at the bus stops, while avoiding any interference with the bus schedules and operations. This system has been defined during the project myTOSA 1.0 and implemented in a pilot test in the city of Geneva in 2013. The project myTOSA 1.0 is currently extended by the project myTOSA 2.0. myTOSA 2.0 is composed of several modules, the most relevant for this semester project is the traffic simulation. The traffic simulation represents the movement of the buses in a network, and requires a representation of the infrastructure as an input. This project aims to define the typical speed profile of an electric bus moving in an urban network. The speed profile includes acceleration and deceleration patters for different driver behaviour, network configurations and traffic levels. The influence of traffic lights, bus priority, roundabouts on the speed profile should be investigated. The first step to achieve this aim is to define the probability distribution of the number of intersections crossed by the bus. This step is necessary to complete this project successfully. Further steps in the directions of the definition of the speed profile are considerate optional. Methodologies from transportation modelling, geographical information system (GIS) and programming (MATLAB) will be used for completing this project.

Modeling public transport transfers in the “new” Lausanne train station, José Ramón Rodriguez

Supervision: Nicholas Molyneaux, Riccardo Scarinci, Michel Bierlaire
Exploration of the tracking data collected in the main station of Basel. The objective is to calculate passenger-centric variability indicators and perform some simple modelling tasks.

Building an integrated model for modelling pedestrian movements inside hubs, Charles Jeanbart

Supervision: Nicholas Molyneaux, Riccardo Scarinci, Michel Bierlaire
The objective of this project is to build a simulator for measuring the impact of management strategies inside transportation hubs.

2016

Measure of user-oriented service variability in hubs, Anouk Allenspach and Dieynaba Dia (Civil Engineering)

Supervision: Nicholas Molyneaux, Riccardo Scarinci, Michel Bierlaire
This project's goal is to explore the service variability (reliability) in public transport hubs. Three operator oriented service characteristics are common in literature (robustness, reliability and punctuality). As these measures are operator oriented, they might not reflect actual level-of-service (LOS) experienced by users (pedestrians). To account for this difference, user-centered measures will be defined then observed using an already secured data set. Some examples of variability measures are OD travel time, passenger transfer times, passenger waiting times, train punctuality, etc. The main data sets used for this project is the pedestrian tracking data from the Lausanne and Basel train stations and possibly some effective train time tables.

Energy consumption of an innovative catenary-free electric bus, Xiaoran Yu

Supervision: Riccardo Scarinci, Yousef Maknoon, Michel Bierlaire
Electric busses help to decrease pollution in city centers. However, they need to be constantly attached to a power source. This limits their mobility and brings visual pollution due to continuous catenaries throughout the city. Focus of this project is a revolutionary catenaryfree electrical bus that includes short-range on-board batteries and a series of fast charging stations installed at some bus stops capable to charge the bus batteries in a few seconds without interference with the bus schedules. This project aims to develop a traffic simulation of this electric bus moving on a simple road network. A discrete event simulation representing the fundamental components of the system (e.g. bus, passengers load, on-board battery, charging station, storage level) should be developed, calibrated and validated using traffic data (such as number passengers on board, traffic and congestion information). Then, key indexes representing the system performance should be defined (e.g. travel time, dwell time, battery charge level). Methodologies from transportation modelling, simulation and programming (Java) will be used for completing this project.

Traffic simulation model of an innovative catenary-free electric bus, Romain Meyer (Civil Engineering)

Supervision: Riccardo Scarinci, Yousef Maknoon, Michel Bierlaire
Electric busses help to decrease pollution in city centres. However, they need to be constantly attached to a power source. This limits their mobility and brings visual pollution due to continuous catenaries throughout the city. Focus of this project is a revolutionary catenary-free electrical bus that includes short-range on-board batteries and a series of fast charging stations installed at some bus stops capable to charge the bus batteries in a few seconds without interference with the bus schedules. This project aims to develop a traffic simulation of this electric bus moving on a simple road network. A discrete event simulation representing the fundamental components of the system (e.g. bus, passengers load, on-board battery, charging station, storage level) should be developed, calibrated and validated using traffic data (such as number passengers on board, traffic and congestion information). Then, key indexes representing the system performance should be defined (e.g. travel time, dwell time, battery charge level). Methodologies from transportation modelling, simulation and programming (MATLAB) will be used for completing this project.

Solar Decathlon: strategies for a sustainable mobility to achieve the goal of a 2000-Watt society, Charles Albert Jeanbart (Civil Engineering)

Supervision: Riccardo Scarinci, Michel Bierlaire
Solar Decathlon is an international competition that challenges twenty university teams from around the world to build and operate solar-powered houses. This project is part of the EPFL multidisciplinary team of students participating at this competition. The global objective is to transform a regular district in Fribourg into a sustainable eco-district using the solar-powered building as an activator. This building would promote sustainable actions, reduction in energy consumption and soft mobility. This project aims to evaluate the necessary strategies to incentive sustainable mobility inside the district. The goal is to suggest concrete actions that would incentive the modal shift toward more sustainable modes of transport. The effects of these strategies should be quantified and analyzed. The total energy consumed for mobility should respect the limit suggested by the 2000-Watt society. This concept proposes a way of living where nobody consumes more than a continuous 2000 W in comparison with the 6000 W currently consumed in Europe. Knowledge of transportation systems, environmental impacts and strong quantitative analysis skills are required to complete this project. The student will also interact with the other members of the Solar Decathlon competition.

2015-2016

Accelerating moving walkways as a transport mode of the future: system optimization and management, Alexandre Petit

Supervision: Riccardo Scarinci, Michel Bierlaire
In a hypothetical future where the use of private cars will be limited in cities, the need for movement will be satisfied by a mix of transport modes such as public transport, cycling, walking and other innovative systems. One of these possible futuristic systems, focus of this project, is an urban network of Accelerating Moving Walkways (AMW), i.e. a moving conveyor system for pedestrian similar to the one used in airports capable to reach speeds up to 15km/h. This project aims to optimize the network design of this innovative transport system of AMWs on the city of Geneva. Given the origin-destination demand, pedestrians are assigned to the city road network in order to obtain route choice and trip distributions. This information is used to identify the optimal configuration of link equipped with AMWs and their capacity. For this, a specifically developed optimization framework is used. Empirical mobility data and the road network (both already available) should be used as input of the optimization framework. Methodologies from mathematical optimisation, traffic assignment, programming (MATLAB) and Geographic Information Systems (GIS) will be used for completing this project.

2015

Pedestrian movement in train stations: modeling speed-density relationship for different classes of passengers, Laure Emma Rosine

Supervision: Marija Nikolic, Riccardo Scarinci, Michel Bierlaire
The increased number of passengers in train stations is causing congestion not only on trains, but also on platforms and underpasses. To better design and manage these infrastructures, pedestrian movement should be understood and modeled accurately. Fundamental Diagram (FD) plays an important role in the representation of pedestrian dynamics. FD models the relationship between density of pedestrians and the speed at which they are able to move. This macroscopic model represents the average behavior and does not take into account differences among pedestrians. They can differ in terms of their purpose of the trip (e.g. business/leisure), personal characteristics (e.g. age, gender), presence of luggage, etc. This heterogeneity can lead to different walking behavior of pedestrians and should be adequately modeled by the FD. This project aims to develop a Multi-Class Fundamental Diagram (MC-FD) assuming the existence of different classes of passengers in a train station. As a case study we will use the Lausanne train station where detailed pedestrian trajectories have been collected. The key elements of the project are: (i) literature review of MC-FD for both pedestrians and vehicles; (ii) development of the modeling assumptions employing empirical, qualitative and sociological considerations; (iii) model specification; (iv) sensitivity analysis, calibration and validation of the proposed model based on empirical data. Knowledge of statistical mathematics and familiarity with programming (MATLAB) are required.

Implementation of a futuristic transport system based on accelerated moving walkways: optimization on a real case study, Raphaël Luthi (Environmental Sciences and Engineering)

Supervision: Riccardo Scarinci, Iliya Markov, Michel Bierlaire
In a hypothetical future where the use of private cars will be limited in cities, the need for movement will be satisfied by a mix of transport modes such as public transport, cycling, walking and other innovative systems. One of these possible futuristic systems, focus of this project, is an urban network of Accelerated Moving Walkways (AMWs), i.e. a moving conveyor system for pedestrian similar to the one used in airports. This project aims to apply an optimization framework to identify the optimal network design of this innovative transport system of AMWs on a real case study. Given the origin-destination demand, pedestrians are assigned to a road network in order to have route choice and trip distributions. On this scenario, the optimal configuration of link equipped with AMWs and their capacity is define. For this purpose, a specifically developed optimization framework is used, and it should be applied to a real city. Lausanne presents appropriate transportation and geographical characteristic to be used as a case study. Empirical mobility data and the city network should be used as input of the optimization framework. Methodologies from mathematical optimization, traffic assignment, programming (MATLAB) and Geographic Information Systems (GIS) will be used for completing this project.

2014

Optimisation of the network design of a futuristic transport system based on moving walkways, Guillaume Lopez

Supervision: Riccardo Scarinci, Jianghang Chen, Michel Bierlaire
In a hypothetical future where the use of private cars will be limited in cities, the need of movement will be satisfied by a mix of transport modes like public transport, cycling, walking and other innovative systems. One of these possible futuristic systems, focus of this project, is an urban network of moving walkways, i.e. a moving conveyor system for pedestrian like the one used in airports. This project aims to study and optimize the network design of this innovative transport system of moving walkways, exploring various network configuration and system characteristics to understand which specification could satisfy at best the increased demand. Given the origin destination demand and trip distribution, the variables of the optimization problem should be defined such that indexes of performance, e.g. overall traveling time and cost, are minimized. Example of design variables for this innovative transport system are: number of links to be equipped with moving walkways, moving pathway speed and system capacity that can be related to energy consumption and construction cost. Methodologies from mathematical optimization, transport network design, simulation and scripting will be used for complete this project.

Service

Ongoing

Completed

Mobility systems coach expert for the Solar Decathlon 2017 project, EPFL, Lausanne, Switzerland (Sep 01, 2015 - Sep 01, 2017)

Jianghang Chen

Jianghang Chen has been a member of the laboratory from Nov 01, 2012 to Jul 31, 2014

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Jianghang Chen.

Journal articles

2017

Chen J., Bierlaire M. (2017). The study of the unidirectional quay crane scheduling problem: complexity and risk-aversion. European Journal of Operational Research 260 (2):613-624


@Article{ChenBier17,
  author = {{Jiang Hang} Chen and Michel Bierlaire},
  title = {The study of the unidirectional quay crane scheduling problem: complexity and risk-aversion},
  journal = {European Journal of Operational Research},
  year = {2017},
  volume = {260},
  number = {2},
  pages = {613-624},
  DOI = {10.1016/j.ejor.2017.01.007}}}

2016

Robenek T., Maknoon Y., Sharif Azadeh S., Chen J., Bierlaire M. (2016). Passenger Centric Train Timetabling Problem. Transportation Research Part B: Methodological 89 :107-126


@Article{RobeMakAzaChenBier16,
  author = {Tom\'a\v{s} Robenek and Yousef Maknoon and Shadi {Sharif Azadeh} and {Jiang Hang} Chen and Michel Bierlaire},
  title = {Passenger Centric Train Timetabling Problem},
  journal = {Transportation Research Part B: Methodological},
  year = {2016},
  volume = {89},
  pages = {107-126},
  DOI = {10.1016/j.trb.2016.04.003},
  note = {Accepted on Apr 01, 2016}}}

Book chapters

2021


@InProceedings{SharMaknChenBier21,
  author = {Shadi {Sharif Azadeh} and Yousef Maknoon and {Jiang Hang} Chen and Michel Bierlaire},
  title = {The Impact of Collaborative Scheduling and Routing for Interconnected Logistics: A European Case Study},
  year = {2021},
  booktile = {Strategic Decision Making for Sustainable Management of Industrial Networks},
  editor = {Jafar Rezaei},
  publisher = {Springer},
  address = {Switzerland},
  pages = {35-56}}}

Technical reports

2015

Robenek T., Maknoon Y., Sharif Azadeh S., Chen J., Bierlaire M. (2015). Passenger Centric Train Timetabling Problem. Report TRANSP-OR 150917


@TechReport{RobMakAzaChenBier15,
  author = {Tom\'a\v{s} Robenek and Yousef Maknoon and Shadi {Sharif Azadeh} and {Jiang Hang} Chen and Michel Bierlaire},
  title = {Passenger Centric Train Timetabling Problem},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2015},
  type = {Technical Report},
  number = {TRANSP-OR 150917},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2014

Binder S., Chen J., Bierlaire M. (2014) Generation and evaluation of passenger-oriented railway disposition timetables. Proceedings of the Swiss Transportation Research Conference (STRC), 14 - 16 May, Ascona, Switzerland


@InProceedings{Binder_STRC2014,
  author = {Stefan Binder and {Jiang Hang} Chen and Michel Bierlaire},
  title = {Generation and evaluation of passenger-oriented railway disposition timetables},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), 14 - 16 May},
  year = {2014},
  address = {Ascona, Switzerland}}}

Robenek T., Chen J., Bierlaire M. (2014) The Ideal Train Timetabling Problem. Proceedings of the 14th Swiss Transportation Research Conference (STRC), 14 - 16 May, Ascona, Switzerland


@InProceedings{Robenek_STRC2014,
  author = {Tom\'a\v{s} Robenek and {Jiang Hang} Chen and Michel Bierlaire},
  title = {The Ideal Train Timetabling Problem},
  booktime = {Proceedings of the 14th Swiss Transportation Research Conference (STRC), 14 - 16 May},
  year = {2014},
  address = {Ascona, Switzerland}}}


@InProceedings{Scarinci2014_STRC,
  author = {Riccardo Scarinci and Guillaume Lopez and {Jiang Hang} Chen and Michel Bierlaire},
  title = {Optimization of the network design of a futuristic transport system based on moving walkways},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), 14 - 16 May},
  year = {2014},
  address = {Ascona, Switzerland}}}

2013

Chen J., Atasoy B., Robenek T., Bierlaire M., Thémans M. (2013) Planning of feeding station installment for electric urban public mass-transportation system. Proceedings of the 13th Swiss Transportation Research Conference (STRC), 24-26 April, Ascona, Switzerland


@InProceedings{ChenAtasRobeBierThemSTRC2013,
  author = {Jingmin Chen and Bilge Atasoy and Tom\'a\v{s} Robenek and Michel Bierlaire and Micha\"el Th\'emans},
  title = {Planning of feeding station installment for electric urban public mass-transportation system},
  booktime = {Proceedings of the 13th Swiss Transportation Research Conference (STRC), 24-26 April},
  year = {2013},
  address = {Ascona, Switzerland}}}

Robenek T., Chen J., Bierlaire M. (2013) Exploratory Analysis of Demand Interaction in the Planning of Passenger Railway Service. Proceedings of the 13th Swiss Transportation Research Conference (STRC), 24-26 April, Ascona, Switzerland


@InProceedings{Robenek_STRC2013,
  author = {Tom\'a\v{s} Robenek and {Jiang Hang} Chen and Michel Bierlaire},
  title = {Exploratory Analysis of Demand Interaction in the Planning of Passenger Railway Service},
  booktime = {Proceedings of the 13th Swiss Transportation Research Conference (STRC), 24-26 April},
  year = {2013},
  address = {Ascona, Switzerland}}}

Research projects

2012

myTOSA: catenary-free 100% electric urban public mass-transportation system

myTOSA is a simulation tool for the dimensioning, commercial promotion and case study set-up for ABB's revolutionary "catenary-free" 100% electric urban public mass-transportation system TOSA 2013. The objective of the project is to provide a simulation tool that will allow ABB to perform the proper dimensioning, promote the commercial idea and allow for specific study cases for the implementation of ABB's new public electric transportation concept, namely TOSA 2013.
- Mar 01, 2012 - Sep 30, 2013
- Sponsor: Commission pour la technologie et de l'innovation, Office Fédéral de la formation professionnelle et de la technologie.
- Principal investigator: Michel Bierlaire
- Project manager: Jianghang Chen
- Collaborators: Bilge Atasoy, Tom�s Robenek

EPFL courses

Spring 2014

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Amanda Stathopoulos, Jianghang Chen
- Teaching assistants: Iliya Markov, Anna Fernandez Antolin
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2014
Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Riccardo Scarinci, Jianghang Chen
- Teaching assistants: Tom�s Robenek, Marija Nikolic
- Webpage: http://transp-or.epfl.ch/courses/OptSim2014/

Spring 2013

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Michel Bierlaire, Jianghang Chen
- Teaching assistants: Evanthia Kazagli, Tom�s Robenek
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2013
Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Bilal Farooq, Jianghang Chen
- Teaching assistants: Aur�lie Glerum, Antonin Danalet
- Webpage: http://transp-or.epfl.ch/courses/OptSim2013/

Master theses

2014

Development of a urban distribution model and a strategic decision making tool for Singapore’s freight transport planning, Alexis Dubil (Civil Engineering)
- Supervision: Michel Bierlaire, Jianghang Chen
- External expert: Der Horng Lee

Semester projects

2014

Optimisation of the network design of a futuristic transport system based on moving walkways, Guillaume Lopez

Supervision: Riccardo Scarinci, Jianghang Chen, Michel Bierlaire
In a hypothetical future where the use of private cars will be limited in cities, the need of movement will be satisfied by a mix of transport modes like public transport, cycling, walking and other innovative systems. One of these possible futuristic systems, focus of this project, is an urban network of moving walkways, i.e. a moving conveyor system for pedestrian like the one used in airports. This project aims to study and optimize the network design of this innovative transport system of moving walkways, exploring various network configuration and system characteristics to understand which specification could satisfy at best the increased demand. Given the origin destination demand and trip distribution, the variables of the optimization problem should be defined such that indexes of performance, e.g. overall traveling time and cost, are minimized. Example of design variables for this innovative transport system are: number of links to be equipped with moving walkways, moving pathway speed and system capacity that can be related to energy consumption and construction cost. Methodologies from mathematical optimization, transport network design, simulation and scripting will be used for complete this project.

2013-2014

Vehicle dispatching problem in physical internet hub and spoke model, Alexis Dubil (Civil Engineering)

Supervision: Jianghang Chen
The call for sustainability in logistics section promotes the idea of Physical Internet (PI). The approach of PI aims to universally interconnect logistics networks as the digital internet did with computer networks. In the world of physical internet, consumer goods are encapsulated in smart and secured containers (i.e., PI containers) and are routed in logistics networks with the similar pattern that digital packets are handled in the internet.

Vehicle routing problem coupling with bin packing, Buytaert Gabrielle (Communication Systems)

Supervision: Jianghang Chen
The call for sustainability in logistics section promotes the idea of Physical Internet (PI). The approach of PI aims to universally interconnect logistics networks as the digital internet did with computer networks. In the world of physical internet, consumer goods are encapsulated in smart and secured containers (i.e., PI boxes) and are routed in logistics networks with the similar pattern that digital packets are handled in the internet. In this student project, we focus on the last mile problem in the PI. After PI boxes arrive their final designated PI hub, given clients� addresses and the information of the trucks (e.g., truck weight and volume capacities) available at this hub, the decision makers aim to assign the minimal number of trucks to deliver all the arrived PI containers to their destinations in a cost-effective way. This is a typical Vehicle Routing Problem (VRP) but with the side constraint that we need to take the dimensions of the PI boxes (in 3D) into account when loading and/or unloading occur. This problem is termed vehicle routing problem coupling with bin packing. Its essential constraints that the student need to consider are: 1. The available number of vehicles is bounded; 2. Vehicle weight and volume capacities cannot be exceeded; 3. The loading and unloading need to follow the policy of �Last-in-first-out�.

2013

Optimization of Paris' Metro System, Thomas Cibils (Mathematics)

Supervision: Tomás Robenek, Jianghang Chen, Michel Bierlaire
The Metrolab (a joint venture between RATP (R�gie Autonome des Transports Parisiens) and Alstom) would like to conduct analysis of their current metro system in terms of metro schedules and pedestrian congestion in the stations. The aim of this project is to use optimization techniques to design more flexible dynamic timetables and partially to handle the pedestrian congestion in the stations. This project will be offered only for spring semester 2013.

Amanda Stathopoulos

Amanda Stathopoulos has been a member of the laboratory from Jan 01, 2012 to Jul 31, 2014

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Amanda Stathopoulos.

Journal articles

2017


@Article{VaroGlerStatBierLong17,
  author = {Silvia Varotto and Aur\'elie Glerum and Amanda Stathopoulos and Michel Bierlaire and Giovanni Longo},
  title = {Mitigating the impact of errors in travel time reporting on mode choice modelling},
  journal = {Journal of Transport Geography},
  year = {2017},
  volume = {62},
  pages = {236-246},
  DOI = {10.1016/j.jtrangeo.2017.05.016},
  note = {Accepted on May 31, 2017}}}

2014

Hess S., Stathopoulos A. (2014). A mixed random utility � Random regret model linking the choice of decision rule to latent character traits. Journal of Choice Modelling


@Article{as_jocm_2014,
  author = {Stephane Hess and Amanda Stathopoulos},
  title = {A mixed random utility {\textemdash} Random regret model linking the choice of decision rule to latent character traits},
  journal = {Journal of Choice Modelling},
  year = {2014},
  DOI = {10.1016/j.jocm.2013.12.005},
  note = {Accepted on Jan 06, 2014}}}

Stathopoulos A., Marcucci E. (2014). De Gustibus Disputandum Est: Non-Linearity in Public Transportation Service Quality Evaluation . International Journal of Sustainable Transportation 8 (1):47-68


@Article{as_ijst_2014,
  author = {Amanda Stathopoulos and Edoardo Marcucci},
  title = {De Gustibus Disputandum Est: Non-Linearity in Public Transportation Service Quality Evaluation },
  journal = {International Journal of Sustainable Transportation},
  year = {2014},
  volume = {8},
  number = {1},
  pages = {47-68},
  DOI = {10.1080/15568318.2012.758523},
  note = {Accepted on Dec 11, 2012}}}

2013

Hess S., Stathopoulos A., Campbell D., O'Neill V., Caussade S. (2013). It�s not that I don�t care, I just don�t care very much: confounding between attribute non-attendance and taste heterogeneity. Transportation 40 (3):583-607


@Article{as_t_2012,
  author = {Stephane Hess and Amanda Stathopoulos and Danny Campbell and Vikki O'Neill and Sebastian Caussade},
  title = {It{\textquoteright}s not that I don{\textquoteright}t care, I just don{\textquoteright}t care very much: confounding between attribute non-attendance and taste heterogeneity},
  journal = {Transportation},
  year = {2013},
  volume = {40},
  number = {3},
  pages = {583-607},
  DOI = {10.1007/s11116-012-9438-1},
  note = {Accepted on Oct 08, 2012}}}

Hess S., Stathopoulos A. (2013). Linking response quality to survey engagement: A combined random scale and latent variable approach. Journal of Choice Modelling 7 ():1-12


@Article{as_jocm_2013,
  author = {Stephane Hess and Amanda Stathopoulos},
  title = {Linking response quality to survey engagement: A combined random scale and latent variable approach},
  journal = {Journal of Choice Modelling},
  year = {2013},
  volume = {7},
  pages = {1-12},
  DOI = {10.1016/j.jocm.2013.03.005}}}

2012

Stathopoulos A., Hess S. (2012). Revisiting reference point formation, gains-losses asymmetry and non-linear sensitivities with an emphasis on attribute specific treatment. Transportation Research Part A: Policy and Practice 46 (10):1673-1689


@Article{as_tra_2012,
  author = {Amanda Stathopoulos and Stephane Hess},
  title = {Revisiting reference point formation, gains-losses asymmetry and non-linear sensitivities with an emphasis on attribute specific treatment},
  journal = {Transportation Research Part A: Policy and Practice},
  year = {2012},
  volume = {46},
  number = {10},
  pages = {1673-1689},
  DOI = {10.1016/j.tra.2012.08.005},
  note = {Accepted on Aug 14, 2012}}}

Marcucci E., Stathopoulos A. (2012). Multi-level governance and transport policy: the case of local roads in Italy. International journal of transport economics 39 (1):15-38


@Article{ijte_2012,
  author = {Edoardo Marcucci and Amanda Stathopoulos},
  title = { Multi-level governance and transport policy: the case of local roads in Italy},
  journal = {International journal of transport economics},
  year = {2012},
  volume = {39},
  number = {1},
  pages = {15-38}}}

Books

Marcucci E., Gatta V., Valeri E., Stathopoulos A. (2013) Urban freight transport modelling: an agent-specific approach . FrancoAngeli [ISBN 9788856859836 ]


@Book{freightbook13,
  author = {Edoardo Marcucci and Valerio Gatta and Eva Valeri and Amanda Stathopoulos},
  title = {Urban freight transport modelling: an agent-specific approach },
  publisher = {FrancoAngeli},
  ISBN = {9788856859836 },
  year = {2013}}}

Articles in conference proceedings

2014

Fernandez-Antolin A., Stathopoulos A., Bierlaire M. (2014) Exploratory Analysis of Endogeneity in Discrete Choice Models. Proceedings of the 14th Swiss Transport Research Conference (STRC), 14-16 May, Ascona, Switzerland


@InProceedings{FerStaBie_STRC2014,
  author = {Anna Fernandez-Antolin and Amanda Stathopoulos and Michel Bierlaire},
  title = {Exploratory Analysis of Endogeneity in Discrete Choice Models},
  booktime = {Proceedings of the 14th Swiss Transport Research Conference (STRC), 14-16 May},
  year = {2014},
  address = {Ascona, Switzerland}}}

Hänseler F., Molyneaux N., Bierlaire M., Stathopoulos A. (2014) Schedule-based estimation of pedestrian demand within a railway station. Proceedings of the Swiss Transportation Research Conference (STRC), 14-16 May, Ascona, Switzerland


@InProceedings{Haens_STRC_2014,
  author = {Flurin H\"anseler and Nicholas Molyneaux and Michel Bierlaire and Amanda Stathopoulos},
  title = {Schedule-based estimation of pedestrian demand within a railway station},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), 14-16 May},
  year = {2014},
  address = {Ascona, Switzerland}}}


@InProceedings{VarGleStaBie_STRC2014,
  author = {Silvia Varotto and Aur\'elie Glerum and Amanda Stathopoulos and Michel Bierlaire},
  title = {Modelling travel time perception in transport mode choices},
  booktime = {Proceedings of the 14th Swiss Transport Research Conference (STRC), May 14-16},
  year = {2014},
  address = {Ascona, Switzerland}}}

2013

Stathopoulos A., Glerum A., Thémans M., Bierlaire M. (2013) Dynamic vehicle ownership forecasting: a framework to model inter-temporal renewal decisions. Proceedings of the Swiss Transportation Research Conference (STRC), April 24-26, Ascona, Switzerland


@InProceedings{StaGleTheBie,
  author = {Amanda Stathopoulos and Aur\'elie Glerum and Micha\"el Th\'emans and Michel Bierlaire},
  title = { Dynamic vehicle ownership forecasting: a framework to model inter-temporal renewal decisions},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), April 24-26},
  year = {2013},
  address = {Ascona, Switzerland}}}

Talks

2013

Stathopoulos A., Glerum A., Thémans M., Bierlaire M. A framework to model inter-temporal renewal decisions May 30, 2013. 8th Workshop on discrete choice models, EPFL, Lausanne.


@Misc{sta_dcworkshop8,
  author = {Amanda Stathopoulos and Aur\'elie Glerum and Micha\"el Th\'emans and Michel Bierlaire},
  title = {A framework to model inter-temporal renewal decisions},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/sta_dcworkshop8.pdf}},
  year = {2013},
  note = {Presented at 8th Workshop on discrete choice models, EPFL, Lausanne}}}

Stathopoulos A., Glerum A., Thémans M., Bierlaire M. Dynamic vehicle ownership forecasting: a framework to model inter-temporal renewal decisions April 25, 2013. Swiss Transportation Research Conference, , Ascona, Switzerland.


@Misc{sta_strc2013,
  author = {Amanda Stathopoulos and Aur\'elie Glerum and Micha\"el Th\'emans and Michel Bierlaire},
  title = { Dynamic vehicle ownership forecasting: a framework to model inter-temporal renewal decisions},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/sta_strc2013.pdf}},
  year = {2013},
  note = {Presented at Swiss Transportation Research Conference, , Ascona, Switzerland}}}

2012

Stathopoulos A., Glerum A., Thémans M., Bierlaire M. Car demand in the future: enriching forecasting models with market dynamics, behavioural variables and policy evolution November 14, 2012. Research and innovation for transport systems in of the future, Paristech, Ministère Recherche et Enseignement Supérieur, Paris.


@Misc{sta_ritf,
  author = {Amanda Stathopoulos and Aur\'elie Glerum and Micha\"el Th\'emans and Michel Bierlaire},
  title = {Car demand in the future: enriching forecasting models with market dynamics, behavioural variables and policy evolution},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/sta_ritf.pdf}},
  year = {2012},
  note = {Presented at Research and innovation for transport systems in of the future, Paristech, Minist\ère Recherche et Enseignement Sup\érieur, Paris}}}

Stathopoulos A., Glerum A., Thémans M., Bierlaire M. Dynamic vehicle ownership forecasting September 05, 2012. Latsis Symposium 2012, EPFL, EPFL.


@Misc{sta_latsis,
  author = {Amanda Stathopoulos and Aur\'elie Glerum and Micha\"el Th\'emans and Michel Bierlaire},
  title = {Dynamic vehicle ownership forecasting},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/sta_latsis.pdf}},
  year = {2012},
  note = {Presented at Latsis Symposium 2012, EPFL, EPFL}}}

Stathopoulos A., Marcucci E. Heterogeneity in Urban Freight Policy Analysis: The Case of Own-Account Retailers and Transport Providers in Rome's LTZ July 17, 2012. The 13th International Conference on Travel Behavior Research, University of Toronto.


@Misc{STATHOPOULOS_iatbr2,
  author = {Amanda Stathopoulos and Edoardo Marcucci},
  title = {Heterogeneity in Urban Freight Policy Analysis: The Case of Own-Account Retailers and Transport Providers in Rome's LTZ},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/STATHOPOULOS_iatbr2.pdf}},
  year = {2012},
  note = {Presented at The 13th International Conference on Travel Behavior Research, University of Toronto}}}

Hess S., Stathopoulos A. Linking the decision process to underlying constructs in a latent variable latent class approach: first round July 16, 2012. The 13th International Conference on Travel Behavior Research, University of Toronto.


@Misc{STATHOPOULOS_iatbr1,
  author = {Stephane Hess and Amanda Stathopoulos},
  title = {Linking the decision process to underlying constructs in a latent variable latent class approach: first round},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/STATHOPOULOS_iatbr1.pdf}},
  year = {2012},
  note = {Presented at The 13th International Conference on Travel Behavior Research, University of Toronto}}}

Stathopoulos A. Modeling alternative fuel vehicle purchases: a discrete choice experiment February 10, 2012. NECTAR CLUSTER 2 Workshop Urban and Regional Transport: Regulation, Sustainability, E-Mobility, Dresden University of Technology, Germany.


@Misc{statdresden,
  author = {Amanda Stathopoulos},
  title = {Modeling alternative fuel vehicle purchases: a discrete choice experiment},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/statdresden.pdf}},
  year = {2012},
  note = {Presented at NECTAR CLUSTER 2 Workshop  Urban and Regional Transport: Regulation, Sustainability, E-Mobility, Dresden University of Technology, Germany}}}

Reviewing

Research projects

2012

A DYNAMIC VEHICLE CHOICE FORECASTING FRAMEWORK

The aim of this research project is to develop a dynamic model framework to forecast car demand. The model-system jointly accounts for behavioural variables (e.g. household evolution, individual motivations), institutional factors (e.g. incentives and taxation) and market features (e.g. new fuel or vehicle technology launches) to forecast vehicle acquisition. The project benefits from a large-scale, longitudinal dataset on vehicle transactions from major European markets. Methodologically the framework consists of a system of aggregate, disaggregate and duration-based choice models, accounting for dynamic features of the decision at each stage. Importantly, the proposed dynamic framework enhances realism by representing the durability of possession, rapid changes in value across product and ownership cycles and uncertainty about future market developments and institutional factors. The proposed framework sheds light on the timing and type of vehicle ownership, illustrating the benefits of taking the first steps away from a static approach. The findings will aid the prediction of consumer behaviour in response to critical policy variables, such as incentives, alongside market dynamics, such as the appearance and diffusion of novel technologies. A deeper understanding of future vehicle choice behaviour is critical given sizable institutional and industrial investments to promote alternative vehicle technologies with a final aim to improve energy efficiency in the transportation sector. More information http://transport.epfl.ch/car-market-structure
- Apr 01, 2012 - Apr 30, 2013
- Sponsor: PSA Peugeot-Citroën
- Principal investigator: Michel Bierlaire
- Project manager: Amanda Stathopoulos
- Collaborator: Aur�lie Glerum

EPFL courses

Spring 2014

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Amanda Stathopoulos, Jianghang Chen
- Teaching assistants: Iliya Markov, Anna Fernandez Antolin
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2014

Fall 2013

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturers: Michel Bierlaire, Amanda Stathopoulos
- Teaching assistants: Evanthia Kazagli, Anna Fernandez Antolin
- Webpage: http://transp-or.epfl.ch/courses/dca2013/

Fall 2012

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Antonin Danalet, Amanda Stathopoulos
- Webpage: http://transp-or.epfl.ch/courses/dca2012/

Various lectures

2012

Modelling the Choice of Alternative Fuel Vehicles.
- Lectures in doctoral programme, section 'government and institutions', University of 'Roma Tre', Rome
- Feb 27, 2012
- Lecturer: Amanda Stathopoulos

Master theses

2014

Exploring approaches to model financial decisions, Billal Mahoubi (Civil Engineering)
- Supervision: Amanda Stathopoulos, Michel Bierlaire
- External expert:

2013

How perceptions affect the modal choice? A cross country comparison from a gender oriented point of view, Silvia Francesca Varotto (None)
- Supervision: Michel Bierlaire, Amanda Stathopoulos, Aurélie Glerum
- External expert:

Semester projects

2013-2014

Schedule-based estimation of pedestrian travel demand within a quasi-uncongested railway station, Quentin Mazars-Simon (Communication Systems)

Supervision: Flurin Hänseler, Amanda Stathopoulos
In many railway stations, capacity limits are reached at peak hours and congestion in pedestrian facilities occurs. There is thus a general need to analyze and model pedestrian flows in train stations. In this process, estimating pedestrian origin-destination demand and, more precisely, route flows is a major challenge. The ultimate goal of this research project is to dynamically predict pedestrian travel demand within a train station based on train time table and train track assignment. To this end, a preliminary methodology has been developed. This framework needs to be refined and extended in many ways, which can be an interesting and suitable task for a semester or Master's thesis. Your thesis would be part of a comprehensive project employing pedestrian tracking, flow modeling and infrastructure optimization. All ideas and model concepts will be tested, parametrized and validated on a real case study.

Modeling the demand for financial products, Billal Mahoubi (Civil Engineering)

Supervision: Amanda Stathopoulos
This MA pre-project focuses on developing a demand model for financial products. The work is carried out in collaboration with a trading service partner an based on real data on commodity portfolio investments. The project will cover the following: i) a literature review on the demand for financial products, behavioural finance on trading choices, ii) development of a demand model on the client data that is able to qualify the impact of different determinant (price, spread, client features, external events) on decisions to buy/sell the commodity, iii) testing the model on different scenarios (sensitivity to different changes in conditions) and validation. The work comprises: conceptual modeling, data elaboration/exploration and empirical model development, hence this pre-project and the related MA project requires skills in mathematics, management of large data, statistics/econometrics related to discrete choice models and some knowledge of behavioural theories in finance.

2013

Enhancement of Naville's Press Delivery Regulation Tool: An Exploratory Analysis, Lea Kissling (Mathematics)

Supervision: Evanthia Kazagli, Amanda Stathopoulos
The aim of this project is to explore data driven complementary strategies to the existing allocation strategy of Naville, in order to provide guidance for potential improvements of the existing allocation tool of the company. In this project the student will investigate the potential benefits of including a wider set of data in order to identify press demand patterns over time. Accounting for consumer profiles, detailed sale points data, geographical area, external events, etc., will enable a more accurate understanding and anticipation of demand fluctuations. Drawing from the results of this analysis we will provide recommendations for improvements of the existing tool used by Naville. The proposed exploratory project can form the basis for a further work on the challenging theme of modeling and predicting demand and optimizing distribution strategies in the context of declining and uncertain evolution of the press market.

Modelling car ownership duration, Natalie Sauerwald (Mathematics)

Supervision: Amanda Stathopoulos, Aurélie Glerum
Household vehicle ownership influences many aspects of travel demand, with pronounced impact for energy consumption, travel mode distribution, residential location patterns and city attractiveness. Despite a large number of vehicle choice models focusing on the type of car chosen, formal modelling of the timing and duration of ownership has received relatively little attention. Statistical models known as duration (hazard) models can be used to estimate the distribution of vehicle ownership lengths in a population. A central interest is to identify the determinants of the time that elapses between two automobile transactions, including characteristics of the car and household and macroeconomic/policy variables. In addition, the influence of less tangible factors such as expectations regarding the market, future vehicle launches, propensity for planning and personal aspirations may have a large impact on the timing of renewal and vehicle ownership duration. We have a large dataset available containing rich information on vehicle acquisitions and are looking for a student to collaborate on data elaboration, exploration and development of a duration model for vehicle ownership. Several assumptions for the hazard function and innovative determinants of ownership spells will be considered. The student should be familiar with management of large data, statistics/econometrics and have some notion of behavioral theories of decision-making.

Movement patterns of pedestrians on platforms, Nicholas Alan Molyneaux

Supervision: Flurin Hänseler, Amanda Stathopoulos
To understand how people access a train station by means of trains, the arrival and departure pattern of pedestrians on platforms is of interest. In particular, the embarkation/disembarkation behavior of train passengers is an important factor for congestion in pedestrian facilities. The departure pattern of pedestrians awaiting to board a train has been shown to follow a beta distribution. In contrast to that, arriving passengers usually enter a train station as a very dense crowd, causing a theoretical inflow that exceeds the capacity of pedestrian facilities. The goal of this work is to mathematically describe the arrival and departure patterns caused by single trains as well as for platforms on which multiple trains follow each other in close succession. Very detailed pedestrian tracking data of platform 3/4 in Gare de Lausanne will form the basis of this analysis. Basic programming skills or a strong willingness to acquire such knowledge is desired.

2012-2013

Modelling the choice of vehicle in an extended framework, Areg Gevorgyan (Management of Technology and Financial Engineering)

Supervision: Amanda Stathopoulos
It is becoming increasingly clear that models of vehicle choice need to find a way to measure complex consumer substitution patterns across products and over time, while accounting for a wealth of features that modulate the buying experience. This means that planning, acquisition and use of the vehicle is linked through features such as attitudes, life-event changes, status aspirations and perceptions of making a good deal. We have a large dataset available containing rich information on vehicle acquisitions and are looking for a student to collaborate on data elaboration, exploration and modelling that factors in richer behavioral variables than is common in traditional vehicle choice models. Methodologically the choice of vehicle will be modeled using random utility discrete choice demand systems. The student should be familiar with management of large data, statistics/econometrics and have some notion of behavioral theories of decision-making. The work will start with exploring the structure in the data, formulating simple models to identify some constructs and segments in the data then move towards a more formal choice model with perceptual/attitudinal components.

Service

Ongoing

Completed

Guest editor for special issue on "Quality, Regulation and Environmental Sustainability in Public Transport", International Journal of Transport Economics, Anno XXXIX/1, 2012, (Jan 04, 2012 - Jan 10, 2013)
Guest editor of special issue on "Measuring Service Quality and Local Public Transport Performance", International Journal of Sustainable Transportation (Sep 30, 2010 - Jan 10, 2013)

Reviewer, The National Science Foundation, Arlington, US (Feb 01, 2013 - Mar 14, 2013)
Project manager - Scientific service contract, Constellium / Innovation Cells (EPFL), EPFL (Jul 02, 2012 - Dec 31, 2012)

Bilal Farooq

Bilal Farooq has been a member of the laboratory from Jan 01, 2011 to Jul 31, 2013

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Bilal Farooq.

Journal articles

2016

Nikolic M., Bierlaire M., Farooq B., de Lapparent M. (2016). Probabilistic speed-density relationship for pedestrian traffic. Transportation Research Part B: Methodological 89 :58-81


@Article{NikBieFarLap_ProbabilisticSpeedDensity,
  author = {Marija Nikolic and Michel Bierlaire and Bilal Farooq and Matthieu {de Lapparent}},
  title = {Probabilistic speed-density relationship for pedestrian traffic},
  journal = {Transportation Research Part B: Methodological},
  year = {2016},
  volume = {89},
  pages = {58-81},
  DOI = {10.1016/j.trb.2016.04.002},
  note = {Accepted on Apr 02, 2016}}}

2014

Hänseler F., Bierlaire M., Farooq B., Mühlematter T. (2014). A macroscopic loading model for time-varying pedestrian flows in public walking areas. Transportation Research Part B: Methodological 69 :60 -- 80

A macroscopic loading model applicable to time-dependent and congested pedestrian flows in public walking areas is proposed. Building on the continuum theory of pedestrian flows and the cell transmission model for car traffic, an isotropic framework is developed that can describe the simultaneous and potentially conflicting propagation of multiple pedestrian groups. The model is formulated at the aggregate level and thus computationally cheap, which is advantageous for studying large-scale problems. A detailed analysis of several basic flow patterns including counter- and cross flows, as well as two generic scenarios involving a corner- and a bottleneck flow is carried out. Various behavioral patterns ranging from disciplined queueing to impatient jostling can be realistically reproduced. Following a systematic model calibration, two case studies involving a Swiss railway station and a Dutch bottleneck flow experiment are presented. A comparison with the social force model and pedestrian tracking data shows a good performance of the proposed model with respect to predictions of travel time and density.
```
@Article{Haens_Bier_Far_Muhl_2014,
  author = {Flurin H\"anseler and Michel Bierlaire and Bilal Farooq and Thomas M\"uhlematter},
  title = {A macroscopic loading model for time-varying pedestrian flows in public walking areas},
  journal = {Transportation Research Part B: Methodological},
  year = {2014},
  volume = {69},
  pages = {60 -- 80},
  DOI = {10.1016/j.trb.2014.08.003},
  note = {Accepted on Aug 08, 2014}}}
```
Danalet A., Farooq B., Bierlaire M. (2014). A Bayesian Approach to Detect Pedestrian Destination-Sequences from WiFi Signatures. Transportation Research Part C: Emerging Technologies 44 :146 - 170

In this paper, we propose a methodology to use the communication network infrastructure, in particular WiFi traces, to detect the sequence of activity episodes visited by pedestrians. Due to the poor quality of WiFi localization, a probabilistic method is proposed that infers activity-episode locations based on WiFi traces and calculates the likelihood of observing these traces in the pedestrian network, taking into account prior knowledge. The output of the method consists of candidates of activity-episodes sequences associated with the likelihood to be the true one. The methodology is validated on traces generated by a known sequence of activities, while the performance being evaluated on a set of anonymous users. Results show that it is possible to predict the number of episodes and the activity-episodes locations and durations, by merging information about the activity locations on the map, WiFi measurements and prior information about schedules and the attractivity in pedestrian infrastructure. The ambiguity of each activity episode in the sequence is explicitly measured.
```
@Article{DanaletFarooqBierlaire_2014,
  author = {Antonin Danalet and Bilal Farooq and Michel Bierlaire},
  title = {A Bayesian Approach to Detect Pedestrian Destination-Sequences from WiFi Signatures},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2014},
  volume = {44},
  pages = {146 - 170},
  DOI = {10.1016/j.trc.2014.03.015},
  note = {Accepted on Mar 26, 2014}}}
```

Anderson P., Farooq B., Efthymiou D., Bierlaire M. (2014). Association Generation in Synthetic Population for Transportation Applications: Graph-Theoretic Solution . Transportation Research Record 2429 :38-50


@Article{AndeFaroEfthBier15,
  author = {Paul Anderson and Bilal Farooq and Dimitrios Efthymiou and Michel Bierlaire},
  title = {Association Generation in Synthetic Population for Transportation Applications: Graph-Theoretic Solution },
  journal = {Transportation Research Record},
  year = {2014},
  volume = {2429},
  pages = {38-50},
  DOI = {10.3141/2429-05},
  note = {Accepted on Feb 14, 2014}}}

Efthymiou D., Farooq B., Bierlaire M., Antoniou C. (2014). Multidimensional Indicator Analysis for Transport Policy Evaluation. Transportation Research Record 2430


@Article{EfthFarrBierAnto15,
  author = {Dimitrios Efthymiou and Bilal Farooq and Michel Bierlaire and Constantinos Antoniou},
  title = {Multidimensional Indicator Analysis for Transport Policy Evaluation},
  journal = {Transportation Research Record},
  year = {2014},
  volume = {2430},
  DOI = {10.3141/2430-09},
  note = {Accepted on Feb 14, 2014}}}

2013

Farooq B., Bierlaire M., Hurtubia R., Flötteröd G. (2013). Simulation based population synthesis. Transportation Research Part B: Methodological 58 :243-263


@Article{FaroBierHurtFloe13,
  author = {Bilal Farooq and Michel Bierlaire and Ricardo Hurtubia and Gunnar Fl\"otter\"od},
  title = {Simulation based population synthesis},
  journal = {Transportation Research Part B: Methodological},
  year = {2013},
  volume = {58},
  pages = {243-263},
  DOI = {10.1016/j.trb.2013.09.012},
  note = {Accepted on Sep 21, 2013}}}

Farooq B., Miller E., Haider M. (2013). A Multidimensional Decisions Modelling Framework for Built Space Supply. Journal of Transport and Land Use 6 (3)

The spatial and temporal distribution of built space supply plays an important role in shaping urban form and thus the general travel pattern in an urban area. Within an integrated framework, we are interested in modeling the decisions of a builder in terms of when, where, what type, and how much built-space to build. We present a multidimensional discrete-continuous model formulation for the built space supply decisions that are based on expected profit maximization. The framework is applied to estimate a model for supply of new office space in the Greater Toronto Area (GTA) for the duration of 1986 to 2006. To our knowledge, this work is the first that models the where, when, how much, and what type of office space to supply in a single econometric framework at a fairly disaggregate spatial zoning system. The results indicate a risk taker behaviour on the builders’ part, while market conditions and supply of resources (labour, construction cost etc.) are also found to be important factors in decision making.
```
@Article{BF_SupplyDec_JTLU2012,
  author = {Bilal Farooq and Eric Miller and Murtaza Haider},
  title = {A Multidimensional Decisions Modelling Framework for Built Space Supply},
  journal = {Journal of Transport and Land Use},
  year = {2013},
  volume = {6},
  number = {3},
  DOI = {10.5198/jtlu.v6i3.350},
  note = {Accepted on May 03, 2012}}}
```
Farooq B., Miller E., Chingcuanco F., Giroux-Cook M. (2013). Microsimulation Framework for Urban Price-Taker Markets. Journal of Transport and Land Use 6 (1)

In the context of integrated transportation and other urban engineering infrastructure systems, there are many examples of markets, where consumers exhibit price-taking behaviour. While this behaviour is ubiquitous, the underlying mechanism can be captured in a single framework. Here, we present a microsimulation framework of a price-taker market that recognizes this generality and develop efficient algorithms for the associated market clearing problem. By abstracting the problem as a specific graph theoretic problem (i.e. maximum weighted bipartite graph), first we are able to exploit algorithms that are developed in graph theory. We then explore their appropriateness in terms of large-scale integrated urban microsimulations. Based on which, we further develop a generic and efficient clearing algorithm that takes advantage of the features specific to urban price-taker markets. This clearing solution is then used to operationalize two price-taker markets, from two different contexts, within a microsimulation of urban systems. The initial validation of results against the observed data generally shows a close match.
```
@Article{BF_Market_JTLU2012,
  author = {Bilal Farooq and Eric Miller and Franco Chingcuanco and Martin Giroux-Cook},
  title = {Microsimulation Framework for Urban Price-Taker Markets},
  journal = {Journal of Transport and Land Use},
  year = {2013},
  volume = {6},
  number = {1},
  DOI = {10.5198/jtlu.v6i1.325},
  note = {Accepted on Feb 01, 2012}}}
```

2012

Farooq B., Miller E. (2012). Towards Integrated Land Use and Transportation: A Dynamic Disequilibrium based Microsimulation Framework for Built Space Markets. Transportation Research Part A: Policy and Practice 46 (7):1030-1053

Investigating the factors and processes that influence the spatiotemporal distribution of built space and population in an urban area, plays an extremely important role in our greater understanding of the urban travel behaviour. Existing location of activity centres, especially home and work, strongly influences the short-term individual-level decisions such as mode of transportation, and long-term household-level decisions such as change in job and residential location. Conditions in the built space market also affect households’ and firms’ location and relocation decisions, and hence influence the general travel patterns in an urban area. In this context, this paper addresses a very important, but at the same time, not very widely investigated dimension that plays a key role in the evolution of built space and population distribution: Market. A disequilibrium based microsimulation modelling framework is developed for the built space markets. This framework is then used to operationalize the Greater Toronto and Hamilton Area’s owner-occupied housing market within Integrated Land Use Transportation and Environment (ILUTE) modelling system. Simulation results captured heterogeneity in the transaction prices, due to type of dwellings and different market conditions, in a very disaggregate fashion. The proposed methodology is validated by running the simulation from 1986 to 2006 and comparing the results with the historic data.
```
@Article{BF_TRA_2012,
  author = {Bilal Farooq and Eric Miller},
  title = {Towards Integrated Land Use and Transportation: A Dynamic Disequilibrium based Microsimulation Framework for Built Space Markets},
  journal = {Transportation Research Part A: Policy and Practice},
  year = {2012},
  volume = {46},
  number = {7},
  pages = {1030-1053},
  DOI = {10.1016/j.tra.2012.04.005},
  note = {Accepted on Apr 18, 2012}}}
```

2011

Miller E., Farooq B., Chingcuanco F., Wang D. (2011). Historical Validation of an Integrated Transport � Land Use Model System. Transportation Research Record 2 (2255):91-99

The ILUTE (Integrated Land Use, Transportation, Environment) model system is an agent-based microsimulation model for the Greater Toronto-Hamilton Area (GTHA) in which disaggregate, process-based models of spatial socio-economic processes are used to evolve the GTHA system state from a known base case to a predicted future year end state in one-year time steps. ILUTE has reached a state of operational implementation in which historical validation runs are being undertaken. A 100% GTA population of persons, families, households and dwelling units has been synthesized for the year 1986. Twenty-year historical simulations (1986-2006) have been run, with model outputs being compared to Canadian Census data and Transportation Tomorrow Survey (TTS) data for 1991, 1996, 2001 and 2006. This paper presents recent findings from these historical validation tests, with particular emphasis on the system’s modelling of demographic evolution of the population and of the region’s housing market.
```
@Article{BF_TRR_2011,
  author = {Eric Miller and Bilal Farooq and Franco Chingcuanco and David Wang},
  title = {Historical Validation of an Integrated Transport {\textendash} Land Use Model System},
  journal = {Transportation Research Record},
  year = {2011},
  volume = {2},
  number = {2255},
  pages = {91-99},
  DOI = {10.3141/2255-10},
  note = {Accepted on Mar 05, 2011}}}
```

Book chapters

2015

Farooq B., Hurtubia R., Bierlaire M. (2015) Simulation based generation of a synthetic population for Brussels. In Bierlaire, de Palma, Hurtubia and Waddell (ed) Integrated Transport and Land Use Modeling for Sustainable Cities, [ISBN 978-2-940222-72-8]


@InProceedings{FaroHurtBier15,
  author = {Bilal Farooq and Ricardo Hurtubia and Michel Bierlaire},
  title = {Simulation based generation of a synthetic population for Brussels},
  year = {2015},
  booktile = {Integrated Transport and Land Use Modeling for Sustainable Cities},
  editor = {Bierlaire and  de Palma and  Hurtubia and Waddell},
  pages = {95-112}}}

Farooq B., Mueller K., Bierlaire M., Axhausen K. (2015) Methodologies for synthesizing populations. In Bierlaire, de Palma, Hurtubia and Waddell (ed) Integrated Transport and Land Use Modeling for Sustainable Cities, EPFL Press , Lausanne, Switzerland [ISBN 978-2-940222-72-8]


@InProceedings{FaroMuelBierAxha15,
  author = {Bilal Farooq and Kirill Mueller and Michel Bierlaire and Kay Axhausen},
  title = {Methodologies for synthesizing populations},
  year = {2015},
  booktile = {Integrated Transport and Land Use Modeling for Sustainable Cities},
  editor = {Bierlaire and  de Palma and  Hurtubia and Waddell},
  publisher = {EPFL Press},
  address = {Lausanne, Switzerland},
  pages = {77-94}}}

2014

Danalet A., Bierlaire M., Farooq B. (2014) Estimating Pedestrian Destinations Using Traces from WiFi Infrastructures. In U. Weidmann, U. Kirsch and M. Schreckenberg (ed) Pedestrian and Evacuation Dynamics 2012, Springer International Publishing [ISBN 978-3-319-02446-2]


@InProceedings{DanaletBierlaireFarooqPED2012,
  author = {Antonin Danalet and Michel Bierlaire and Bilal Farooq},
  title = {Estimating Pedestrian Destinations Using Traces from WiFi Infrastructures},
  year = {2014},
  booktile = {Pedestrian and Evacuation Dynamics 2012},
  editor = {U. Weidmann and  U. Kirsch and M. Schreckenberg},
  publisher = {Springer International Publishing},
  pages = {1341-1352}}}

Technical reports

2015

Nikolic M., Bierlaire M., Farooq B. (2015). Probabilistic speed-density relationship for pedestrian traffic: a data-driven approach. Report TRANSP-OR 150411


@TechReport{NikBieFar_PedMixFD_2015,
  author = {Marija Nikolic and Michel Bierlaire and Bilal Farooq},
  title = {Probabilistic speed-density relationship for pedestrian traffic: a data-driven approach},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2015},
  type = {Technical Report},
  number = {TRANSP-OR 150411},
  address = {Lausanne, Switzerland}}}

2013

Hänseler F., Bierlaire M., Farooq B., Mühlematter T. (2013). An aggregate model for transient and multi-directional pedestrian flows in public walking areas. Report TRANSP-OR 131219


@TechReport{PedCTM_2013,
  author = {Flurin H\"anseler and Michel Bierlaire and Bilal Farooq and Thomas M\"uhlematter},
  title = {An aggregate model for transient and multi-directional pedestrian flows in public walking areas},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2013},
  type = {Technical Report},
  number = {TRANSP-OR 131219},
  address = {Lausanne, Switzerland}}}

Danalet A., Farooq B., Bierlaire M. (2013). A Bayesian Approach to Detect Pedestrian Destination-Sequences from WiFi Signatures. Report TRANSP-OR 131002


@TechReport{Danaletetal_WiFi,
  author = {Antonin Danalet and Bilal Farooq and Michel Bierlaire},
  title = {A Bayesian Approach to Detect Pedestrian Destination-Sequences from WiFi Signatures},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2013},
  type = {Technical Report},
  number = {TRANSP-OR 131002},
  address = {Lausanne, Switzerland}}}

Farooq B., Bierlaire M., Hurtubia R., Flötteröd G. (2013). Simulation based Synthesis of Population. Report TRANSP-OR 130125


@TechReport{FaroBierHurtFloe_PopSyn2013,
  author = {Bilal Farooq and Michel Bierlaire and Ricardo Hurtubia and Gunnar Fl\"otter\"od},
  title = {Simulation based Synthesis of Population},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2013},
  type = {Technical Report},
  number = {TRANSP-OR 130125},
  address = {Lausanne, Switzerland}}}

2012

Farooq B., Miller E., Chingcuanco F., Giroux-Cook M. (2012). Microsimulation framework for urban price-taker markets. Report TRANSP-OR 120827


@TechReport{FaroMilleChingCook2012,
  author = {Bilal Farooq and Eric Miller and Franco Chingcuanco and Martin Giroux-Cook},
  title = {Microsimulation framework for urban price-taker markets},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2012},
  type = {Technical Report},
  number = {TRANSP-OR 120827},
  address = {Lausanne, Switzerland}}}

Farooq B., Miller E., Haider M. (2012). A Multidimensional Decisions Modelling Framework for Built Space Supply. Report TRANSP-OR 120826


@TechReport{FaroMilleHaid2012.pdf,
  author = {Bilal Farooq and Eric Miller and Murtaza Haider},
  title = {A Multidimensional Decisions Modelling Framework for Built Space Supply},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2012},
  type = {Technical Report},
  number = {TRANSP-OR 120826},
  address = {Lausanne, Switzerland}}}

Hänseler F., Sahaleh S., Farooq B., Lavadinho S., Thémans M., Bierlaire M. (2012). Final report on the modeling part of the "Flux pietons Gare de Lausanne" project within the framework of "Leman 2030". Report TRANSP-OR 120801


@TechReport{LEMAN2030,
  author = {Flurin H\"anseler and Sohrab Sahaleh and Bilal Farooq and Sonia Lavadinho and Micha\"el Th\'emans and Michel Bierlaire},
  title = {Final report on the modeling part of the ''Flux pietons Gare de Lausanne'' project within the framework of ''Leman 2030''},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2012},
  type = {Technical Report},
  number = {TRANSP-OR 120801},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2014

Nikolic M., Bierlaire M., Farooq B. (2014) Probabilistic speed-density relationship for pedestrians based on data driven space and time representation. Proceedings of the Swiss Transportation Research Conference (STRC), 14 - 16 May, Ascona, Switzerland


@InProceedings{NikBieFar_STRC2014,
  author = {Marija Nikolic and Michel Bierlaire and Bilal Farooq},
  title = {Probabilistic speed-density relationship for pedestrians based on data driven space and time representation},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), 14 - 16 May},
  year = {2014},
  address = {Ascona, Switzerland}}}

2013

Danalet A., Farooq B., Bierlaire M. (2013) Towards an activity-based model for pedestrian facilities. Proceedings of the 13th Swiss Transport Research Conference (STRC), April 24-26, Monte Verit�, Ascona, Switerland


@InProceedings{Danalet_Farooq_STRC13v2,
  author = {Antonin Danalet and Bilal Farooq and Michel Bierlaire},
  title = {Towards an activity-based model for pedestrian facilities},
  booktime = {Proceedings of the 13th Swiss Transport Research Conference (STRC), April 24-26},
  year = {2013},
  address = {Monte Verit\`a, Ascona, Switerland}}}

Efthymiou D., Farooq B., Bierlaire M., Antoniou C. (2013) Agent Based Indicators Analysis in the Context of Policy Evaluation. Proceedings of the Swiss Transport Research Conference (STRC), April 24-26, Ascona, Switzerland


@InProceedings{EfthymiouSTRC2013b,
  author = {Dimitrios Efthymiou and Bilal Farooq and Michel Bierlaire and Constantinos Antoniou},
  title = {Agent Based Indicators Analysis in the Context of Policy Evaluation},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), April 24-26},
  year = {2013},
  address = {Ascona, Switzerland}}}

Hänseler F., Farooq B., Bierlaire M. (2013) An aggregated dynamic flow model for pedestrian movement in railway stations. Proceedings of the Swiss Transportation Research Conference (STRC), 24-26 April, Ascona, Switzerland


@InProceedings{Haens_STRC_2013,
  author = {Flurin H\"anseler and Bilal Farooq and Michel Bierlaire},
  title = {An aggregated dynamic flow model for pedestrian movement in railway stations},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), 24-26 April},
  year = {2013},
  address = {Ascona, Switzerland}}}

Nikolic M., Farooq B., Bierlaire M. (2013) Exploratory analysis of pedestrian flow characteristics in mobility hubs using trajectory data. Proceedings of the Swiss Transportation Research Conference (STRC), 24-26 April, Ascona, Switzerland


@InProceedings{Nikolic_Farooq_Bierlaire_STRC_2013,
  author = {Marija Nikolic and Bilal Farooq and Michel Bierlaire},
  title = {Exploratory analysis of pedestrian flow characteristics in mobility hubs using trajectory data},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), 24-26 April},
  year = {2013},
  address = {Ascona, Switzerland}}}

2012

Farooq B., Bierlaire M., Hurtubia R., Flötteröd G. (2012) Simulation based Approach for Agents Synthesis in Large-Scale Urban Systems Modelling. Proceedings of the 13th Conference of International Association of Travel Behaviour Research (IATBR), July 15-20, Toronto, Canada


@InProceedings{FaroBierHurtFlot2012,
  author = {Bilal Farooq and Michel Bierlaire and Ricardo Hurtubia and Gunnar Fl\"otter\"od},
  title = {Simulation based Approach for Agents Synthesis in Large-Scale Urban Systems Modelling},
  booktime = {Proceedings of the 13th Conference of International Association of Travel Behaviour Research (IATBR), July 15-20},
  year = {2012},
  address = {Toronto, Canada}}}

Hänseler F., Farooq B., Bierlaire M. (2012) Preliminary ideas for dynamic estimation of pedestrian origin-destination demand within train stations. Proceedings of the Swiss Transport Research Conference (STRC), 02.05.2012-04.05.2012, Ascona, Switzerland


@InProceedings{HaeFarBie_STRC_2012,
  author = {Flurin H\"anseler and Bilal Farooq and Michel Bierlaire},
  title = {Preliminary ideas for dynamic estimation of pedestrian origin-destination demand within train stations},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), 02.05.2012-04.05.2012},
  year = {2012},
  address = {Ascona, Switzerland}}}

Sahaleh S., Bierlaire M., Farooq B., Danalet A., Hänseler F. (2012) Scenario Analysis of Pedestrian Flow in Public Spaces. Proceedings of the 12th Swiss Transport Research Conference (STRC), May 2-4, Monte Verit�, Ascona, Switzerland


@InProceedings{SahBie_STRC_2012,
  author = {Sohrab Sahaleh and Michel Bierlaire and Bilal Farooq and Antonin Danalet and Flurin H\"anseler},
  title = {Scenario Analysis of Pedestrian Flow in Public Spaces},
  booktime = {Proceedings of the 12th Swiss Transport Research Conference (STRC), May 2-4},
  year = {2012},
  address = {Monte Verit\`a, Ascona, Switzerland}}}

2011

Breuer A., Farooq B. (2011) Participation? I like it! The Impact of Social Digital Media on Political Participation: Evidence from the Brazilian Case. Proceedings of the 6th General Conference of the European Consortium for Political Research (ECPR), August 25�27, 2011, Reykjavik, Iceland


@InProceedings{AB_Reykjavik_Aug2011,
  author = {Anita Breuer and Bilal Farooq},
  title = {Participation? I like it! The Impact of Social Digital Media on Political Participation: Evidence from the  Brazilian Case},
  booktime = {Proceedings of the 6th General Conference of the European Consortium for Political  Research (ECPR), August 25{\textendash}27, 2011},
  year = {2011},
  address = {Reykjavik, Iceland}}}

Farooq B. (2011) Towards a unified framework of urban built space evolution: Agents and Processes. Proceedings of the Swiss Transport Research Conference (STRC), May 11-13, 2011, Monte Verit�, Ascona, Switzerland


@InProceedings{BF_STRC2011_Paper,
  author = {Bilal Farooq},
  title = {Towards a unified framework of urban built space evolution: Agents and Processes},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), May 11-13, 2011},
  year = {2011},
  address = {Monte Verit\`a, Ascona, Switzerland}}}

Farooq B., Miller E., Haider M. (2011) Multidimensional Decision Modeling Framework for Built Space Supply . Proceedings of the Annual Meeting of Transportation Research Board (TRB), January 23-27, 2011, Washington DC, USA


@InProceedings{BF_WashDC_Jan2011b,
  author = {Bilal Farooq and Eric Miller and Murtaza Haider},
  title = {Multidimensional Decision Modeling Framework for Built Space Supply },
  booktime = {Proceedings of the Annual Meeting of Transportation Research Board (TRB), January 23-27, 2011},
  year = {2011},
  address = {Washington DC, USA}}}

Farooq B., Miller E., Chingcuanco F., Giroux-Cook M. (2011) Microsimulation Framework for Urban Price-Taker Markets. Proceedings of the World Symposium on Transport and Land Use Research (WSTLUR), July 28-30, 2011, Whistler, British Columbia, Canada


@InProceedings{BF_WCTLR2011_Paper,
  author = {Bilal Farooq and Eric Miller and Franco Chingcuanco and Martin Giroux-Cook},
  title = {Microsimulation Framework for Urban Price-Taker Markets},
  booktime = {Proceedings of the World Symposium on Transport and Land Use Research (WSTLUR), July 28-30, 2011},
  year = {2011},
  address = {Whistler, British Columbia, Canada}}}

Talks

2013

Farooq B., Bierlaire M. Synthesizing Data on Agents and Their Associations: A Simulation and Graph Theoretic Approach May 31, 2013. Eighth Workshop on Discrete Choice Models, Lausanne.


@Misc{FARO_DCA2013,
  author = {Bilal Farooq and Michel Bierlaire},
  title = {Synthesizing Data on Agents and Their Associations: A Simulation and Graph Theoretic Approach},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/FARO_DCA2013.pdf}},
  year = {2013},
  note = {Presented at Eighth Workshop on Discrete Choice Models, Lausanne}}}

Farooq B., Bierlaire M. Population Synthesis: A Different Perspective May 24, 2013. Workshop on Land-Use Transport Interactions, Paris.


@Misc{FARO_LUTIParis,
  author = {Bilal Farooq and Michel Bierlaire},
  title = {Population Synthesis: A Different Perspective},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/FARO_LUTIParis.pdf}},
  year = {2013},
  note = {Presented at Workshop on Land-Use Transport Interactions, Paris}}}

2012

Farooq B. Integrated Transportation and Urban Infrastructure Systems: Planning and Design December 06, 2012. Invited speaker, École Polytechnique de Montréal, Montréal, Canada.


@Misc{BF_PolyDec2012,
  author = {Bilal Farooq},
  title = {Integrated Transportation and Urban Infrastructure Systems: Planning and Design },
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/BF_PolyDec2012.pdf}},
  year = {2012},
  note = {Presented at Invited speaker, \École Polytechnique de Montr\éal, Montr\éal, Canada}}}

Farooq B. Simulation Methods in Urban Infrastructure Systems November 26, 2012. Invited speaker, Universidade de Coimbra, Coimbra, Portugal.


@Misc{BF_CoimbraNov2012,
  author = {Bilal Farooq},
  title = {Simulation Methods in Urban Infrastructure Systems},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/BF_CoimbraNov2012.pdf}},
  year = {2012},
  note = {Presented at Invited speaker, Universidade de Coimbra, Coimbra, Portugal}}}

Farooq B., Bierlaire M., Flötteröd G. A new approach to synthesize heterogeneous agents and their associations for urban microsimulations March 28, 2012. 2nd Workshop of Urban Dynamics, Termas de Chillán, Chile.


@Misc{URBANICSII_FAR2012,
  author = {Bilal Farooq and Michel Bierlaire and Gunnar Fl\"otter\"od},
  title = {A new approach to synthesize heterogeneous agents and their associations for urban microsimulations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/URBANICSII_FAR2012.pdf}},
  year = {2012},
  note = {Presented at 2nd Workshop of Urban Dynamics, Termas de Chill\án, Chile}}}

2011

Farooq B. Recent Advances in Agent Synthesis for Large-Scale Integrated Models November 18, 2011. Invited Speaker, Institute of Transportation Engineers, University of Toronto Chapter, Toronto, ON, Canada.


@Misc{BF_UofTNov2011,
  author = {Bilal Farooq},
  title = {Recent Advances in Agent Synthesis for Large-Scale Integrated Models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/BF_UofTNov2011.pdf}},
  year = {2011},
  note = {Presented at Invited Speaker, Institute of Transportation Engineers, University of Toronto Chapter, Toronto, ON, Canada}}}

Farooq B. Understanding Sustainable Evolution of Urban Engineering Systems using Behavioural Modelling and Microsimulation September 08, 2011. Invited Speaker, University of British Columbia, Kelowna, Okanagen, BC, Canada.


@Misc{UBCOSept11,
  author = {Bilal Farooq},
  title = {Understanding Sustainable Evolution of Urban Engineering Systems using Behavioural Modelling and Microsimulation},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/UBCOSept11.pdf}},
  year = {2011},
  note = {Presented at Invited Speaker, University of British Columbia, Kelowna, Okanagen, BC, Canada}}}

Farooq B., Bierlaire M., Flötteröd G. Simulation based Population Synthesis August 26, 2011. Seventh workshop on discrete choice models, EPFL, Lausanne, Switzerland.


@Misc{Farooq_WDCA_11,
  author = {Bilal Farooq and Michel Bierlaire and Gunnar Fl\"otter\"od},
  title = {Simulation based Population  Synthesis},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Farooq_WDCA_11.pdf}},
  year = {2011},
  note = {Presented at Seventh workshop on discrete choice models, EPFL, Lausanne, Switzerland}}}

Farooq B., Miller E., Chingcuanco F., Giroux-Cook M. Microsimulation Framework for Urban Price-Taker Markets July 29, 2011. Microsimulation Framework for Urban Price-Taker Markets, Whistler, Canada.


@Misc{BF_WCTLR2011,
  author = {Bilal Farooq and Eric Miller and Franco Chingcuanco and Martin Giroux-Cook},
  title = {Microsimulation Framework for Urban Price-Taker Markets},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/BF_WCTLR2011.pdf}},
  year = {2011},
  note = {Presented at Microsimulation Framework for Urban Price-Taker Markets, Whistler, Canada}}}

Farooq B. Towards a unified framework of urban built space evolution: Agents and Processes May 12, 2011. Swiss Transport Research Conference, Monte Verita / Ascona, Switzerland.


@Misc{BF_STRC2011,
  author = {Bilal Farooq},
  title = {Towards a unified framework of urban built space evolution: Agents and Processes},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/BF_STRC2011.pdf}},
  year = {2011},
  note = {Presented at Swiss Transport Research Conference, Monte Verita / Ascona, Switzerland}}}

Farooq B. A Dynamic Multidimensional Decisions Modelling Framework for New Built Space Supply March 09, 2011. Workshop on Equilibrium Sorting in Urban Economics and Transportation Models, Center for Energy Policy and Economics, ETHZ, Zurich.


@Misc{BF_URBANECON_2011,
  author = {Bilal Farooq},
  title = {A Dynamic Multidimensional Decisions Modelling Framework for New Built Space Supply},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/BF_URBANECON_2011.pdf}},
  year = {2011},
  note = {Presented at Workshop on Equilibrium Sorting in Urban Economics and Transportation Models, Center for Energy Policy and Economics, ETHZ, Zurich}}}

Farooq B. Multidimensional Discrete-Continuous Modelling of Choice Bundles: Theory and Application February 25, 2011. Invited Speaker, Department of Transport and Regional Economics, University of Antwerp, Antwerp.


@Misc{BF_UANTWERP_2011a,
  author = {Bilal Farooq},
  title = {Multidimensional Discrete-Continuous Modelling of Choice Bundles: Theory and Application},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/BF_UANTWERP_2011a.pdf}},
  year = {2011},
  note = {Presented at Invited Speaker, Department of Transport and Regional Economics, University of Antwerp, Antwerp}}}

Farooq B., Miller E. ILUTE Microsimulation Framework of Urban Spatial Dynamics: Recent Developments January 27, 2011. iTeam Workshop on Activity Based Modelling and Microsimulation, Washington DC.


@Misc{BF_WashDC_Jan2011c,
  author = {Bilal Farooq and Eric Miller},
  title = {ILUTE Microsimulation Framework of Urban Spatial Dynamics: Recent Developments},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/BF_WashDC_Jan2011c.pdf}},
  year = {2011},
  note = {Presented at iTeam Workshop on Activity Based Modelling and Microsimulation, Washington DC}}}

Farooq B., Miller E., Haider M. Multidimensional Decision Modeling Framework for Built Space Supply January 25, 2011. Annual Meeting of Transportation Research Board, TRB, Washington DC.


@Misc{BF_WashDC_Jan2011b,
  author = {Bilal Farooq and Eric Miller and Murtaza Haider},
  title = {Multidimensional Decision Modeling Framework for Built Space Supply},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/BF_WashDC_Jan2011b.pdf}},
  year = {2011},
  note = {Presented at Annual Meeting of Transportation Research Board, TRB, Washington DC}}}

Farooq B. Evolution of Urban Built Space: Markets and Decisions January 23, 2011. Annual Meeting of Transportation Research Board, TRB, Washington DC.


@Misc{BF_WashDC_Jan2011a,
  author = {Bilal Farooq},
  title = {Evolution of Urban Built Space: Markets and Decisions},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/BF_WashDC_Jan2011a.pdf}},
  year = {2011},
  note = {Presented at Annual Meeting of Transportation Research Board, TRB, Washington DC}}}

Reviewing

Research projects

2012

Pedestrian dynamics: flows and behavior

This project aims at developing mathematical models of pedestrian dynamics, both at aggregate and disaggregate levels. Integrated and holistic mathematical models will handle the complexity of this unique transport mode and help us to answer open research questions. in the future, such foundations will also allow to create the tools society needs to better understand pedestrian dynamics.
- Apr 01, 2012 - Mar 31, 2015
- Sponsor: Swiss National Science Foundation
- Principal investigator: Michel Bierlaire
- Project managers: Bilal Farooq, Riccardo Scarinci
- Collaborators: Antonin Danalet, Flurin H�nseler, Marija Nikolic

2010

NRP 65: Sustainable Urban Patterns (SUPat)

This project aims at developing methodologies for the integration of qualitative an quantitative tools for land use planning and urban project-evaluation . The methodology will allow the interaction between urban design experts and land use modelers, developing techniques to use the description of urban projects and policies as inputs for land use models like UrbanSim and transport models like MATSim. The modeling effort output is used as input for the experts, generating an iterative feedback.
- Oct 01, 2010 - Sep 30, 2013
- Sponsor: Swiss National Science Foundation
- Principal investigator: Michel Bierlaire
- Project managers: Bilal Farooq, Ricardo Hurtubia
- Collaborator: Dimitrios Efthymiou

2009

Methods and tools for supporting the use, calibration and validation of traffic simulation models

The main objective of this Action is to develop, implement and promote methodologies and procedures to support the use of traffic simulations, especially on the topics of calibration and validation. To this aim, the sharing and exchanging of available traffic datasets will also be a key task of the Action.
- May 26, 2009 - May 25, 2013
- Sponsor: European Commission
- Principal investigator: Michel Bierlaire
- Project manager: Bilal Farooq

2008

NEARCTIS

NEARCTIS (Network of Excellence: Advanced Road Cooperative Traffic management in the Information Society) is an academic network involving teams working on the field of traffic management and optimization, with a particular focus on cooperative systems. The main objective of the project is to constitute what could be considered as a virtual research institute.
- Jul 01, 2008 - Jun 30, 2012
- Sponsor: European Commission
- Principal investigator: Michel Bierlaire
- Project manager: Bilal Farooq

EPFL courses

Spring 2013

Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Bilal Farooq, Jianghang Chen
- Teaching assistants: Aur�lie Glerum, Antonin Danalet
- Webpage: http://transp-or.epfl.ch/courses/OptSim2013/

Spring 2012

Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Bilal Farooq, Prem Kumar
- Teaching assistant: Nitish Umang
- Webpage: http://transp-or.epfl.ch/courses/OptSim2012/

Master theses

2011-2012

Pedestrian flow simulation and optimization in transportation hubs (case study), Sohrab Sahaleh (Civil Engineering)
- Supervision: Michel Bierlaire, Bilal Farooq, Antonin Danalet
- External expert: Prof. Winnie Daamen

Semester projects

2013

Visualization of pedestrian demand in a 3D graph, Javier Lopez-Montenegro Ramil (Computer science)

Supervision: Antonin Danalet, Bilal Farooq
This project aims at visualizing flows in a pedestrian graph in 3D. The graph is coded as a postGIS database (postgresql). The goal consists in representing the density at each node and eventually the flows between the nodes (data coming from our own algorithm). The visualization needs to be both in 3D and in 2D for printing. An IC student would ideally fit the goal of this project. The first step would be to compare the pros and cons of <a href="http://processing.org/">Processing</a> and Google <a href="https://maps.google.com/">Map</a>/<a href="www.google.com/earth/index.html">Earth</a>. Then it would consists in visualizing the pedestrian graph in the chosen tool. As a final step, the student will include density data of signals (without treatment) and the results of our algorithm in the map (treated data) and generate final maps and animations from data. As an inspiration of how it could possibly look like <a href="http://youtu.be/I17_nuPiJI4">this</a> (but with pedestrian as dots instead of trains)

Associations generation in synthetic population, Paul Anderson

Supervision: Bilal Farooq, Dimitrios Efthymiou
In recent years significant advancements have been made in the research related to agent based urban systems modelling, especially in the area of activity based large scale travel demand models. Synthesis of different types of agents (person, family, and household) is an integral part of the input preparation for such models and micosimulations. In addition to agents generation, these recent developments also require synthesizing associations between different types of agents. For instance, which individual person is married to whom, who is the father of a 7 years old male going to a particular school, etc. Such information is very useful in realistic modelling and microsimulation of short term decisions like who gets to take the car for work and long term decisions for instance, what type of dwelling a particular household will buy. A Markov chain Monte Carlo simulation based agents synthesis approach has been proposed by Farooq et al. (2012). At core, the approach used Gibbs sampler to draw from the joint distribution of agent attributes using the available data. Among other advantages, they also demonstrated that the approach can reproduce the joint distribution better than the conventional fitting based approaches. Here we extend the simulation based synthesis approach so that it can also generate the association among drawn agents of different types. Required skill set: Experience in data analysis and pre-processing; probability and statistic; coding in Java or C#

Development of a novel pedestrian flow simulator, Thomas Mühlematter

Supervision: Flurin Hänseler, Bilal Farooq
Due to a general increase in travel demand, pedestrian flows in railway stations are gaining importance. Space is getting scarce, pedestrian density is reaching critical levels, and walking times are getting longer. To better understand these phenomena, we are currently developing a cell-based pedestrian flow simulator. Key features of this framework include its ability to i) realistically reproduce pedestrian density waves caused by arriving trains, ii) adequately describe multi-directional flows often present in public spaces, iii) consider differences in walking speeds among characteristic groups of pedestrians (such as passengers with luggage, handicapped people, travelers in a hurry, etc). To extend and implement this framework, basic programming skills or a strong willingness to acquire such knowledge is needed. Familiarity with fundamental fluid dynamics would be a plus. Extensive support and insight into ongoing research are provided.

2012-2013

Pedestrian flow simulation in Lausanne train station, Nicolas de Lamberterie

Supervision: Bilal Farooq, Marija Nikolic
This project is about modelling, simulating, and analyzing the future expansion scenarios, in the context of pedestrian flows within Lausanne Gare (train station). We have already developed the modelling and simulation test-bed in a pedestrian flow simulator, called VisWalk. Here we would like to use more detailed data for existing and future demand in our models and analysis. A considerable amount of time will be spent to perform the calibration of various parameters using aggregate level speed and density related data. If time permits, we would also be interested in doing small infrastructure changes, specifically tapering of the intersections between PIs and ramps in order to evaluate their effects of the pedestrian flows. Ideal student should have some experience in using CAD software (AutoCAD, Microstation); should have some knowledge of databases; and be able to do basic programming. The student working on the project will have a great and unique opportunity to work directly with SBB CFF FFS, a major transportation software company called PTV AG, and a rapidly growing startup from EPFL called VisioSafe.

Population synthesis for large-scale agent based microsimulation, Lovisa Arnesson

Supervision: Bilal Farooq
Dynamic microsimulation of cities, including transportation, land use, and energy, require an initial dissaggregate population of agents (households and persons) as a key input. Due to privacy reasons, most of the times, governments do not provide access to full information on the population in census. This requires synthesizing the population from available datasets. In principle two datasets are necessary for such synthesis: a) disaggregate sample of households/persons; b) demographic summaries for all the zones in the study area. Techniques like Iterative Proportional Fitting (IPF) method are developed to use these datasets and generate a synthetic population of households and persons. A new technique for population synthesis has been developed at Transportation and Mobility lab. The scope of this project is to a) prepare datasets from the census and various other micro data samples b) run the simulations code based of the developed technique, for various scenarios (code is written in c++ and will be provided to the student. Only a very basic programming knowledge is required from the student) c) analysis and comparison of the results with other methods. This project will require developing understanding of the general methodology of population synthesis, preprocessing the datasets, familiarity with MySQL, GIS software, and some programming experience is recommended.

Prem Kumar

Prem Kumar has been a member of the laboratory from Mar 01, 2010 to Jun 30, 2012

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Prem Kumar.

Journal articles

2015

Piu F., Kumar P., Bierlaire M., Speranza G. (2015). Introducing a preliminary Consists Selection in the Locomotive Assignment Problem. Transportation Research Part E: Logistics and Transportation Review 82 :217-237


@Article{PiuKumaBierSper15,
  author = {Francesco Piu and Prem Kumar and Michel Bierlaire and Grazia Speranza},
  title = {Introducing a preliminary Consists Selection in the Locomotive Assignment Problem},
  journal = {Transportation Research Part E: Logistics and Transportation Review},
  year = {2015},
  volume = {82},
  pages = {217-237},
  DOI = {10.1016/j.tre.2015.07.003},
  note = {Accepted on Jul 06, 2015}}}

Kumar P., Bierlaire M. (2015). Optimizing Fueling Decisions for Locomotives in Railroad Networks. Transportation Science 49 (1):149-159


@Article{KumaBier13,
  author = {Prem Kumar and Michel Bierlaire},
  title = {Optimizing Fueling Decisions for Locomotives in Railroad Networks},
  journal = {Transportation Science},
  year = {2015},
  volume = {49},
  number = {1},
  pages = {149-159},
  DOI = {10.1287/trsc.2013.0479},
  note = {Accepted on Apr 01, 2013}}}

2014

Kumar P., Bierlaire M. (2014). Multi-Objective Airport Gate Assignment Problem in Planning and Operations. Journal of Advanced Transportation 48 (7):902-926


@Article{ViswBier13,
  author = {Prem Kumar and Michel Bierlaire},
  title = {Multi-Objective Airport Gate Assignment Problem in Planning and Operations},
  journal = {Journal of Advanced Transportation},
  year = {2014},
  volume = {48},
  number = {7},
  pages = {902-926},
  DOI = {10.1002/atr.1235},
  note = {Accepted on May 01, 2013}}}

2010

Kumar P., Kumar P. (2010). A DSS to Optimize Facings on the Shelf of a Retail Store. International Journal of Business Insights and Transformation 3 (1)


@Article{KumaKuma10,
  author = {Prem Kumar and Pradeep Kumar},
  title = {A DSS to Optimize Facings on the Shelf of a Retail Store},
  journal = {International Journal of Business Insights and Transformation},
  year = {2010},
  volume = {3},
  number = {1}}}

Technical reports

2012

Kumar P., Bierlaire M. (2012). Multi-Objective Airport Gate Assignment Problem in Planning and Operations. Report TRANSP-OR 120321


@TechReport{KumarBier12,
  author = {Prem Kumar and Michel Bierlaire},
  title = {Multi-Objective Airport Gate Assignment Problem in Planning and Operations},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2012},
  type = {Technical Report},
  number = {TRANSP-OR 120321},
  address = {Lausanne, Switzerland}}}

2011

Kumar P., Bierlaire M. (2011). Optimizing Fueling Decisions for Locomotives in Railroad Networks. Report TRANSP-OR 111006


@TechReport{KumarBier11,
  author = {Prem Kumar and Michel Bierlaire},
  title = {Optimizing Fueling Decisions for Locomotives in Railroad Networks},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2011},
  type = {Technical Report},
  number = {TRANSP-OR 111006},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2012

Kumar P., Bierlaire M. (2012) Optimizing Locations for a Vehicle Sharing System. Proceedings of the Swiss Transport Research Conference (STRC), 02.05.2012-04.05.2012, Ascona, Switzerland


@InProceedings{Kumar_STRC_2012,
  author = {Prem Kumar and Michel Bierlaire},
  title = {Optimizing Locations for a Vehicle Sharing System},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), 02.05.2012-04.05.2012},
  year = {2012},
  address = {Ascona, Switzerland}}}

2011

Kumar P., Bierlaire M. (2011) Generalized Airport Gate Assignment. Proceedings of the International Federations of Operations Research (IFORS), 10-15 July 2011, Melbourne, Australia


@InProceedings{IFORS_2011_Kumar,
  author = {Prem Kumar and Michel Bierlaire},
  title = {Generalized Airport Gate Assignment},
  booktime = {Proceedings of the International Federations of Operations Research (IFORS), 10-15 July 2011},
  year = {2011},
  address = {Melbourne, Australia}}}

Kumar P., Bierlaire M. (2011) Experience of Optimizing Fueling Decisions for Locomotives in Railroad Networks. Proceedings of the INTERNATIONAL CONFERENCE OF OPERATIONS RESEARCH (OR2011), 30 AUG - 2 SEP 2011, ZURICH, SWITZERLAND


@InProceedings{Kumar_OR2011,
  author = {Prem Kumar and Michel Bierlaire},
  title = {Experience of Optimizing Fueling Decisions for Locomotives in Railroad Networks},
  booktime = {Proceedings of the INTERNATIONAL CONFERENCE OF OPERATIONS RESEARCH (OR2011), 30 AUG - 2 SEP 2011},
  year = {2011},
  address = {ZURICH, SWITZERLAND}}}

Kumar P., Bierlaire M. (2011) Multi-Objective Airport Gate Assignment Problem. Proceedings of the Swiss Transport Research Conference (STRC), 11-13 May 2011, Monte Verita, CH


@InProceedings{KUMAR_STRC_2011,
  author = {Prem Kumar and Michel Bierlaire},
  title = {Multi-Objective Airport Gate Assignment Problem},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), 11-13 May 2011},
  year = {2011},
  address = {Monte Verita, CH}}}

2010

Kumar P., Bierlaire M. (2010) Optimal Staffing Plans at Airports. Proceedings of the INFORMS Annual Meeting 2010 (INFORMS2010), 7-10, Nov 2010, Austin, USA


@InProceedings{OptAirportINFORMS2010,
  author = {Prem Kumar and Michel Bierlaire},
  title = {Optimal Staffing Plans at Airports},
  booktime = {Proceedings of the INFORMS Annual Meeting 2010 (INFORMS2010), 7-10, Nov 2010},
  year = {2010},
  address = {Austin, USA}}}

Kumar P., Bierlaire M., Gallay O. (2010) Generalized Algorithms for Crew Planning: Survey and Future Directions for Railways. Proceedings of the 10th Swiss Transport Research Conference (STRC), September 1-3, 2010, Ascona, Switzerland


@InProceedings{KumarBierGall2010,
  author = {Prem Kumar and Michel Bierlaire and Olivier Gallay},
  title = {Generalized Algorithms for Crew Planning: Survey and Future Directions for Railways},
  booktime = {Proceedings of the 10th Swiss Transport Research Conference (STRC), September 1-3, 2010},
  year = {2010},
  address = {Ascona, Switzerland}}}

Talks

2012

Kumar P., Bierlaire M. Location Optimization for a Vehicle Sharing Service May 04, 2012. Swiss Transport Research Conference, STRC, Ascona.


@Misc{Kumar_STRC_12,
  author = {Prem Kumar and Michel Bierlaire},
  title = {Location Optimization for a Vehicle Sharing Service},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Kumar_STRC_12.pdf}},
  year = {2012},
  note = {Presented at Swiss Transport Research Conference, STRC, Ascona}}}

2010

Kumar P. A Mathematical Model for the Locomotive Refueling Problem September 27, 2010. Internal Seminar Series, TRANSP-OR, EPFL.


@Misc{KUMAR_LOCO_REFUEL10,
  author = {Prem Kumar},
  title = {A Mathematical Model for the Locomotive Refueling Problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/KUMAR_LOCO_REFUEL10.pdf}},
  year = {2010},
  note = {Presented at Internal Seminar Series, TRANSP-OR, EPFL}}}

Kumar P. Gate Optimization: Schedule Planning and Day of Operations September 09, 2010. VIII IBM Joint OR Days, University of Fribourg, Fribourg.


@Misc{KUMAR_ORDAYS10,
  author = {Prem Kumar},
  title = {Gate Optimization: Schedule Planning and Day of Operations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/KUMAR_ORDAYS10.pdf}},
  year = {2010},
  note = {Presented at VIII IBM Joint OR Days, University of Fribourg, Fribourg}}}

Kumar P. Crew Scheduling in Transportation: A Survey and Proposed Directions September 03, 2010. Swiss Transport Research Conference, Universita Della Svizerra Italiano, Monte Verita, Ascona.


@Misc{Kumar_STRC10,
  author = {Prem Kumar},
  title = {Crew Scheduling in Transportation: A Survey and Proposed Directions},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Kumar_STRC10.pdf}},
  year = {2010},
  note = {Presented at Swiss Transport Research Conference, Universita Della Svizerra Italiano, Monte Verita, Ascona}}}

Kumar P. An Introduction to EPFL and TRANSP-OR June 24, 2010. AGIFORS Schedule Planning 2010, EPFL, Starling Hotel.


@Misc{Prem_AGIF2010,
  author = {Prem Kumar},
  title = {An Introduction to EPFL and TRANSP-OR},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Prem_AGIF2010.pdf}},
  year = {2010},
  note = {Presented at AGIFORS Schedule Planning 2010, EPFL, Starling Hotel}}}

Research projects

2010

Optimizing Staffing Plans at Airports

Minimizing operating costs for maintaining ground personnel at airports is a complex problem due to uneven flight activities, passenger service expectations and staffing inflexibilities due to shift durations. In this work, we would use the flight schedule and service criteria to develop a method to find optimal shift timings that considers non-productive time due to activity changeovers, the mix of full-time and part-time workers and passenger waiting time criteria.
- Oct 01, 2010 - Oct 01, 2011
- Sponsor: Transport and Mobility Laboratory, EPFL
- Principal investigator: Michel Bierlaire
- Project manager: Prem Kumar
Robust Optimization of Railway Locomotive Assignment

Locomotive assignment at Railway companies is a complex problem that must optimally assign a set of locomotives to known, scheduled trains. Each train has a power and traction requirement and locomotives may be available in groups known as "consist". There is a cost involved in breaking or adding a locomotive to a consist. Determining an optimal locomotive assignment that would also be robust to handle delays, maintenance requirements and other unknown factors is a complex problem. We are inspired from the research in a similar, closely related subject in the airline industry and would explore the possibilities of extending the same to railways. This project would be a part of the larger concept of "Flexible Transportation Systems"
- Oct 01, 2010 - Sep 30, 2011
- Sponsor: Transport and Mobility Laboratory, EPFL
- Principal investigator: Michel Bierlaire
- Project manager: Prem Kumar
- Collaborator: Francesco Piu
A Solution Technique for the Locomotive Refueling Problem

This problem corresponds to refueling locomotives at different station yards during the course of its journey. Locomotive tanks have a fixed fuel capacity and prices of fuel vary across yards. In addition, there is a fixed cost for hiring a refueling truck at a yard and every refueling stop that the locomotive makes. Locomotives can power different train sets during a cyclical planning horizon running 14 days. The objective of this exercise is to minimize the total fuel costs � fixed and operational � for a given set of locomotives, trains and yards. In addition, there are numerous constraints relating to refueling, locomotive tank capacity, refueling truck capacity etc. This problem has similarity to the network flow problem. We formulate this problem as a Mixed Integer Program (MIP) and present our experience in this project.
- Jul 15, 2010 - Jul 15, 2012
- Sponsor: Transport and Mobility Laboratory, EPFL
- Principal investigator: Michel Bierlaire
- Project manager: Prem Kumar

EPFL courses

Spring 2012

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Michel Bierlaire, Prem Kumar
- Teaching assistants: Jingmin Chen, Nitish Umang
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2012
Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Bilal Farooq, Prem Kumar
- Teaching assistant: Nitish Umang
- Webpage: http://transp-or.epfl.ch/courses/OptSim2012/

Spring 2011

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Michel Bierlaire, Prem Kumar
- Teaching assistants: Jingmin Chen, Nitish Umang
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2011

Master theses

2012

MEETAWAY: Connecting People Optimally, François Anken (Mathematics)
- Supervision: Prem Kumar, Bilge Atasoy, Michel Bierlaire
- External expert: Pedro Faustino
A two-stage sequential linear programming approach to optimize security staff at Geneva Airport, Mahmoud Kharouf (Civil Engineering)
- Supervision: Michel Bierlaire, Nitish Umang, Prem Kumar
- External expert: Vincent-Ruben Jimenez

2010

Blind Booking Purchase Patterns: discrete choice analysis, Alexandre Khelifa (Civil Engineering)
- Supervision: Michel Bierlaire, Bilge Atasoy, Prem Kumar
- External expert: Prof. Laurie Garrow, Georgia Tech.
Modeling for Strategic Robustness, Peter G. Swartz (Civil Engineering)
- Supervision: Michel Bierlaire, Prem Kumar
- External expert: Prof. Christopher Zegras, MIT

Semester projects

2011-2012

Optimizing Security Staff Operations at Geneva Airport, MAHMOUD KHAROUF

Supervision: Michel Bierlaire, Prem Kumar, Nitish Umang
Geneva airport is the second largest airport in Switzerland. Airport is capable of easily handling 80-100 landings and take-offs per hour. However one of the major bottlenecks today is the passenger handling capacity. The airport terminal area can handle up to 3000 passengers per hour. In recent times, passenger congestion is frequently building up at the airport. Because of the geographical reasons, it is not easy to expand the terminal building. As a result, it may be fruitful to attempt reducing congestion by efficient handling of the passengers and not letting the passengers wait too long to be serviced. Security screening is the most important area for departing passengers. Optimizing the operating costs for security personnel at airports is a complex problem due to a number of reasons. Each passenger and their corresponding hand baggage need to undergo security screening before entering the boarding gates. Even though the passengers and the baggage need to move together, the rate of service for the two can be vastly different. Security personnel work over specific shift times and need to be provided with suitable meal breaks. Staff members can work full-time or part-time, with a minimum of four hours per day. Passenger arrival pattern at an airport can be extremely uneven. Flight activities also tend to be non-uniform while passenger service expectations and staffing inflexibilities due to shift durations can make the problem even more complex. In this work, we would use the flight schedule and service criteria to develop a method to find optimal shift timings and the mix of full-time and part-time workers such that the overall costs are minimized and the service criteria conditions are fulfilled. Term Project (Master Project Pre-Study) Deliverables � Determine global parameters for passenger arrival rates, service times and shift times at different times of the day and days of the week for both passengers and baggages � Develop and implement a cost optimization MIP model with discrete time intervals Masters Project Deliverables � Adapt the deterministic linear model to account for non-linear passenger arrival and service rates and implement the same � Build a robust optimization model to capture vastly varying arrival and service rates. Determine the various ways to capture model stability with special emphasis on recoverability � Perform sensitivity analysis and compare the results of the stochastic model with simulation � Use the results to make recommendations: For example, create a separate queue or sub-queue for passengers without baggage, or passengers whose flights depart in 20 mins should be brought ahead of the queue, etc. � Develop and implement the model for staff rostering at the security screening Apart from expertise in modeling, the student is expected to be able to implement his model and write his own codes in a standard programming language, such as C or C++ Desired Masters Project Deliverables � Evaluate the tendency for staff to take leaves (including sick leaves) and vacation (subject to data availability) � Plan for contingencies in your model Project Organization The student would be expected to update us on the progress and revert to us for queries on a pre-decided day of the week. The student would be expected to update us on the progress and revert to us for queries on a pre-decided day of the week. A midterm presentation would be scheduled on Thursday, 10.11.2011. At the completion of the term project, a report will be delivered (both in paper as well as electronic form) before the 13.01.2012. The final oral presentation for the term project will be scheduled on 11.01.2012. Similarly, the Masters project would be due before the 01.06.2012 while the oral presentation for Masters project will be scheduled between 18.06.2012 and 29.06.2012 or a mutually convenient and agreed date. All the files, programs, codes, data and report associated with the project must be delivered before these date. All reports will be submitted in two copies to TRANSP-OR Lab and GVA Airport. References � Dowling, D., Krishnamoorthy, M., Mackenzie, H., and Sier, D. (1997). Staff rostering at a large international airport. Annals of Operations Research, 72:125-147. � Ernst, A., Jiang, H., Krishnamoorthy, M., and Sier, D. (2004). Staff scheduling and rostering: A review of applications, methods and models. European journal of operational research, 153(1):3-27. � Gilliam, R. (1979). An application of queueing theory to airport passenger security screening. Interfaces, 9(4):117-123.

Optimizing Train Design in Capacitated Railroads, Stefan Binder

Supervision: Michel Bierlaire, Prem Kumar
The problems of Train Design, Railroad Blocking and Train Assignment are fairly complex and often observed in the railroad industry. Efficient solution methods to these problems bring a huge potential to achieve enhanced operational performance and dramatically reduced costs. Blocking is defined as an activity where a set of shipments arriving at or commencing from a certain node station and departing to another particular node station, or further, are grouped together and sent across as the same train to minimize costs and exploit economies of scale. This problem has marked similarities with the airline scheduling which operates flights across a predetermined hub and spoke network. The problem considered here not only necessitates determining the �right� hubs and �right� trains to be scheduled on the network, but also scheduling the shipments on appropriate trains between the hub station yards and spoke station yards so that the overall costs are minimized. In the problem considered by us, we are given a network comprising a set of nodes and arcs. We are also given a set of shipments with their origin and destination nodes. We are given a range of costs such as the cost of car travel per mile, cost of train travel per mile, cost of starting a train, cost of grouping (also referred to as classifying or blocking) shipments at an intermediate station of a train, cost of train imbalance, cost of crew imbalance and the cost of a missed car that is not transported. It is also required that each train path overlaps one or more crew segments completely. Crew segment between two nodes will also always follow the shortest path between those two nodes. Thus a train cannot run on a section which is not on the path of a crew. Train imbalance is defined as the imbalance generated due to the fact that the number of outgoing and incoming trains at a node differ. Total train imbalance for the network is computed as the sum of imbalances at every node. Crew imbalance is generated due to the fact that a crew operates on a segment, but cannot find an operational train to return to their base. In addition to these considerations, there are specific requirements relating to the maximum number of trains that a shipment can travel on, the maximum number of blocking (or classifications or work events � as referred in the problem statement) allowed for each train, the maximum number of trains allowed on any arc and the limitation on the maximum train length and tonnage. The main objective of our efforts would be to find a cost minimizing set of feasible trains that operate on one or multiple crew segments completely. We would also need to determine the least cost assignment of shipments to these trains. Term Project Deliverables � Develop and implement a cost optimization single or multi-stage mixed integer program model � Solve the model using a mix of relaxations and heuristics and report results on two data sets � Prepare a comprehensive report on solution methods and future research tracks on this problem Apart from expertise in modeling, the student is expected to be able to implement his model and write his own codes in a standard programming language, such as Java or C# Project Organization The student would be expected to update us on the progress and revert to us for queries on a pre-decided day of the week. A midterm presentation would be scheduled on Thursday, 10.11.2011. At the completion of the term project, a report will be delivered (both in paper as well as electronic form) before the 13.01.2012. The final oral presentation for the term project will be scheduled on 11.01.2012. All the files, programs, codes, data and report associated with the project must be delivered before these date. All reports will be submitted in five copies to TRANSP-OR Lab, LUTS Lab, Dr. Prem Kumar and Mr. Burak Boyaci. One copy is for the student.

2010-2011

Optimizing Staffing Plans at Airports, François Anken (Mathematics)

Supervision: Prem Kumar
Minimizing operating costs for maintaining ground personnel at airports is a complex problem due to uneven flight activities, passenger service expectations and staffing inflexibilities due to shift durations. In this work, we would use the flight schedule and service criteria to develop a method to find optimal shift timings that considers non-productive time due to activity changeovers, the mix of full-time and part-time workers and passenger waiting time criteria.

Gunnar Flötteröd

Gunnar Flötteröd has been a member of the laboratory from Jan 01, 2009 to Aug 31, 2011

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Gunnar Flötteröd.

Journal articles

2013

Farooq B., Bierlaire M., Hurtubia R., Flötteröd G. (2013). Simulation based population synthesis. Transportation Research Part B: Methodological 58 :243-263


@Article{FaroBierHurtFloe13,
  author = {Bilal Farooq and Michel Bierlaire and Ricardo Hurtubia and Gunnar Fl\"otter\"od},
  title = {Simulation based population synthesis},
  journal = {Transportation Research Part B: Methodological},
  year = {2013},
  volume = {58},
  pages = {243-263},
  DOI = {10.1016/j.trb.2013.09.012},
  note = {Accepted on Sep 21, 2013}}}

Flötteröd G., Bierlaire M. (2013). Metropolis-Hastings sampling of paths. Transportation Research Part B: Methodological 48 :53-66


@Article{FloeBier13,
  author = {Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Metropolis-Hastings sampling of paths},
  journal = {Transportation Research Part B: Methodological},
  year = {2013},
  volume = {48},
  pages = {53-66},
  DOI = {10.1016/j.trb.2012.11.002},
  note = {Accepted on Oct 17, 2012}}}

2012

Corthout R., Flötteröd G., Viti F., Tampere C. (2012). Non-unique flows in macroscopic first-order intersection models. Transportation Research Part B: Methodological 46 (3):343-359


@Article{CorFloVitTam11,
  author = {Ruben Corthout and Gunnar Fl\"otter\"od and Francesco Viti and Chris Tampere},
  title = {Non-unique flows in macroscopic first-order intersection models},
  journal = {Transportation Research Part B: Methodological},
  year = {2012},
  volume = {46},
  number = {3},
  pages = {343-359},
  DOI = {10.1016/j.trb.2011.10.011},
  note = {Accepted on Oct 28, 2011}}}

Flötteröd G., Chen Y., Nagel K. (2012). Behavioral calibration and analysis of a large-scale travel microsimulation. Networks and Spatial Economics 12 (4):481-502

This article reports on the calibration and analysis of a fully disaggregate (agent-based) transport simulation for the metropolitan area of Zurich. The agent-based simulation goes beyond traditional transport models in that it equilibrates not only route choice but all-day travel behavior, including departure time choice and mode choice. Previous work has shown that the application of a novel calibration technique that adjusts all choice dimensions at once from traffic counts yields cross-validation results that are competitive with any state-of-the-art four-step model. While the previous study aims at a methodological illustration of the calibration method, this work focuses on the real-world scenario, and it elaborates on the usefulness of the obtained results for further demand analysis purposes.
```
@Article{FloeNETS2011,
  author = {Gunnar Fl\"otter\"od and Yu Chen and Kai Nagel},
  title = {Behavioral calibration and analysis of a large-scale travel microsimulation},
  journal = {Networks and Spatial Economics},
  year = {2012},
  volume = {12},
  number = {4},
  pages = {481-502},
  DOI = {10.1007/s11067-011-9164-9},
  note = {Accepted on Jul 12, 2011}}}
```

2011

Osorio C., Flötteröd G., Bierlaire M. (2011). Dynamic network loading: a differentiable model that derives link state distributions. Transportation Research Part B: Methodological 45 (9):1410-1423


@Article{OsoFloeBier2011,
  author = {Carolina Osorio and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Dynamic network loading: a differentiable model that derives link state distributions},
  journal = {Transportation Research Part B: Methodological},
  year = {2011},
  volume = {45},
  number = {9},
  pages = {1410-1423},
  DOI = {10.1016/j.trb.2011.05.014},
  note = {Accepted on Mar 07, 2011}}}

Flötteröd G., Rohde J. (2011). Operational macroscopic modeling of complex urban intersections. Transportation Research Part B: Methodological 45 (6):903-922

This article describes a new approach to the macroscopic first order modeling and simulation of traffic flow in complex urban road intersections. The framework is theoretically sound, operational, and comprises a large body of models presented so far in the literature.
```
@Article{FloeRohTRB11,
  author = {Gunnar Fl\"otter\"od and Jannis Rohde},
  title = {Operational macroscopic modeling of complex urban intersections},
  journal = {Transportation Research Part B: Methodological},
  year = {2011},
  volume = {45},
  number = {6},
  pages = {903-922},
  DOI = {10.1016/j.trb.2011.04.001},
  note = {Accepted on Feb 04, 2011}}}
```
Illenberger J., Flötteröd G., Nagel K. (2011). A model of risk-sensitive route-choice behaviour and the potential benefit of route guidance. IEEE Transactions on Intelligent Transportation Systems 12 (2):384-389

In this paper, we present a simulation-based investigation of the potential benefit of route-guidance information in the context of risk-sensitive travelers. We set up a simple two-route scenario where travelers are repeatedly faced with risky route-choice decisions. The risk averseness of the travelers is implicitly controlled through a generic utility function. We vary both the travelers' sensitivity toward risk and the equipment fraction with route-guidance devices and show that the benefits of guided travelers increase with their sensitivity toward risk.
```
@Article{IllFloNage2010,
  author = {Johannes Illenberger and Gunnar Fl\"otter\"od and Kai Nagel},
  title = {A model of risk-sensitive route-choice behaviour and the potential benefit of route guidance},
  journal = {IEEE Transactions on Intelligent Transportation Systems},
  year = {2011},
  volume = {12},
  number = {2},
  pages = {384-389},
  DOI = {10.1109/TITS.2011.2105266},
  note = {Accepted on Dec 25, 2010}}}
```
Flötteröd G., Bierlaire M., Nagel K. (2011). Bayesian demand calibration for dynamic traffic simulations. Transportation Science 45 (4):541-561

We present an operational framework for the calibration of demand models for dynamic traffic simulations, where calibration refers to the estimation of a structurally predefined model's parameters from real data. Our focus is on disaggregate simulators that represent every traveler individually. We calibrate, also at an individual level, arbitrary choice dimensions within a Bayesian framework, where the analyst's prior knowledge is represented by the dynamic traffic simulator itself and the measurements are comprised of time-dependent traffic counts. The approach is equally applicable to an equilibrium-based planning model and to a telematics model of spontaneous and imperfectly informed drivers. It is based on consistent mathematical arguments, yet it is applicable in a purely simulation-based environment and, as our experimental results show, is capable of handling large scenarios.
```
@Article{FloeBierNageTS10,
  author = {Gunnar Fl\"otter\"od and Michel Bierlaire and Kai Nagel},
  title = {Bayesian demand calibration for dynamic traffic simulations},
  journal = {Transportation Science},
  year = {2011},
  volume = {45},
  number = {4},
  pages = {541-561},
  DOI = {10.1287/trsc.1100.0367},
  note = {Accepted on Dec 01, 2010}}}
```

2010

Bierlaire M., Hurtubia R., Flötteröd G. (2010). An analysis of the implicit choice set generation using the Constrained Multinomial Logit model. Transportation Research Record 2175 :92-97

Discrete choice models are defined conditional to the analyst's knowledge of the actual choice set. The common practice for many years has been to assume that individual-based choice sets can be deterministically generated on the basis of the choice context and characteristics of the decision maker. This assumption is not valid or not applicable in many situations, and probabilistic choice set formation procedures must be considered. The constrained multinomial logit model (CMNL) has recently been proposed as a convenient way to deal with this issue, as it is also appropriate for models with a large choice set. In this paper, how well the implicit choice set generation of the CMNL approximates the explicit choice set generation is analyzed as described in earlier research. The results based on synthetic data show that the implicit choice set generation model may be a poor approximation of the explicit model.
```
@Article{BierHurtFlo_TRB10,
  author = {Michel Bierlaire and Ricardo Hurtubia and Gunnar Fl\"otter\"od},
  title = {An analysis of the implicit choice set generation using the Constrained Multinomial Logit model},
  journal = {Transportation Research Record},
  year = {2010},
  volume = {2175},
  pages = {92-97},
  DOI = {10.3141/2175-11},
  note = {Accepted on Feb 24, 2010}}}
```

Book chapters

2012

Flötteröd G., Bierlaire M. (2012) Running urban microsimulations consistently with real-world data. In S. Müller Arisona, G. Aschwanden, J. Halatsch (ed) Digital Urban Modelling and Simulation, Springer [ISBN 978-3-642-29757-1]


@InProceedings{FloeDUM2011,
  author = {Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Running urban microsimulations consistently with real-world data},
  year = {2012},
  booktile = {Digital Urban Modelling and Simulation},
  editor = {S. M\"uller Arisona and  G. Aschwanden and  J. Halatsch},
  series = {CCIS series},
  publisher = {Springer},
  pages = {181-199}}}

Nagel K., Flötteröd G. (2012) Agent-based traffic assignment: going from trips to behavioral travelers. In C. Bhat, R.M. Pendyala (ed) Travel Behaviour Research in an Evolving World, Emerald Group Publishing


@InProceedings{NageFloe2012,
  author = {Kai Nagel and Gunnar Fl\"otter\"od},
  title = {Agent-based traffic assignment: going from trips to behavioral travelers},
  year = {2012},
  booktile = {Travel Behaviour Research in an Evolving World},
  editor = {C. Bhat and  R.M. Pendyala},
  publisher = {Emerald Group Publishing}}}

2011

Osorio C., Flötteröd G., Bierlaire M. (2011) Dynamic network loading: a stochastic differentiable model that derives link state distributions. In M. Cassidy, A. Skarbadonis (ed) Procedia - Social and Behavioral Sciences. Papers selected for the 19th International Symposium on Transportation and Traffic Theory, Elsevier


@InProceedings{OsoFloBieISTTTbook11,
  author = {Carolina Osorio and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Dynamic network loading: a stochastic differentiable model that derives link state distributions},
  year = {2011},
  booktile = {Procedia - Social and Behavioral Sciences. Papers selected for the 19th International Symposium on Transportation and Traffic Theory},
  editor = {M. Cassidy and  A. Skarbadonis},
  volume = {17},
  series = {Procedia - Social and Behavioral Sciences},
  publisher = {Elsevier},
  pages = {364-381}}}

2010

Dressler D., Flötteröd G., Lämmel G., Nagel K., Skutella M. (2010) Optimal evacuation solutions for large-scale scenarios. In B. Hu, K. Morasch, S. Pickl, M. Siegle (ed) Operations Research Proceedings 2010. Selected Papers of the Annual International Conference of the German Operations Research Society, Springer


@InProceedings{FloeOR2010,
  author = {Daniel Dressler and Gunnar Fl\"otter\"od and Gregor L\"ammel and Kai Nagel and Martin Skutella},
  title = {Optimal evacuation solutions for large-scale scenarios},
  year = {2010},
  booktile = {Operations Research Proceedings 2010. Selected Papers of the Annual International Conference of the German Operations Research Society},
  editor = {B. Hu and  K. Morasch and  S. Pickl and  M. Siegle},
  publisher = {Springer},
  pages = {239-244}}}

2009

Flötteröd G. (2009) Macroscopic Network Loading of Microscopic Network Demand. In Chris M.J. Tampère, Francesco Viti and Ben L.H. Immers (ed) New Developments in Transport Planning: Advances in Dynamic Traffic Assignment, Edward Elgar


@InProceedings{Floe09,
  author = {Gunnar Fl\"otter\"od},
  title = {Macroscopic Network Loading of Microscopic Network Demand},
  year = {2009},
  booktile = {New Developments in Transport Planning: Advances in Dynamic Traffic  Assignment},
  editor = {Chris M.J. Tamp\`ere and  Francesco Viti and Ben L.H. Immers},
  publisher = {Edward Elgar},
  pages = {275-291}}}

Lämmel G., Flötteröd G. (2009) Towards system optimum: Finding optimal routing strategies in time dependent networks for large-scale evacuation problems. In B. Mertsching (ed) KI 2009: Advances in Artificial Intelligence, Springer


@InProceedings{LaemFloe09,
  author = {Gregor L\"ammel and Gunnar Fl\"otter\"od},
  title = {Towards system optimum: Finding optimal routing strategies in time dependent networks for large-scale evacuation problems},
  year = {2009},
  booktile = {KI 2009: Advances in Artificial Intelligence},
  editor = {B. Mertsching},
  series = {Lecture Notes in Computer Science},
  publisher = {Springer},
  pages = {532-539}}}

Technical reports

2015

Kazagli E., Bierlaire M., Flötteröd G. (2015). Revisiting the Route Choice Problem: A Modeling Framework Based on Mental Representations. Report TRANSP-OR 150824


@TechReport{KazBierFloe_2015,
  author = {Evanthia Kazagli and Michel Bierlaire and Gunnar Fl\"otter\"od},
  title = {Revisiting the Route Choice Problem: A Modeling Framework Based on Mental Representations},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2015},
  type = {Technical Report},
  number = {TRANSP-OR 150824},
  address = {Lausanne, Switzerland}}}

2011

Flötteröd G., Bierlaire M. (2011). Metropolis-Hastings sampling of paths. Report TRANSP-OR 110606


@TechReport{FloeBier11,
  author = {Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Metropolis-Hastings sampling of paths},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2011},
  type = {Technical Report},
  number = {TRANSP-OR 110606},
  address = {Lausanne, Switzerland}}}

Corthout R., Flötteröd G., Viti F., Tampere C. (2011). Non-unique flows in macroscopic first-order intersection models. Report TRANSP-OR 110520


@TechReport{CorFloVitTam2011,
  author = {Ruben Corthout and Gunnar Fl\"otter\"od and Francesco Viti and Chris Tampere},
  title = {Non-unique flows in macroscopic first-order intersection models},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2011},
  type = {Technical Report},
  number = {TRANSP-OR 110520},
  address = {Lausanne, Switzerland}}}

2010

Flötteröd G., Chen Y., Nagel K. (2010). Behavioral calibration and analysis of a large-scale travel microsimulation. Report TRANSP-OR 101212


@TechReport{FloeChenNage2010,
  author = {Gunnar Fl\"otter\"od and Yu Chen and Kai Nagel},
  title = {Behavioral calibration and analysis of a large-scale travel microsimulation},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2010},
  type = {Technical Report},
  number = {TRANSP-OR 101212},
  address = {Lausanne, Switzerland}}}

Flötteröd G., Rohde J. (2010). Operational macroscopic modeling of complex urban road intersections. Report TRANSP-OR 101204


@TechReport{FloeRoh2010,
  author = {Gunnar Fl\"otter\"od and Jannis Rohde},
  title = {Operational macroscopic modeling of complex urban road intersections},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2010},
  type = {Technical Report},
  number = {TRANSP-OR 101204},
  address = {Lausanne, Switzerland}}}

Flötteröd G., Liu R. (2010). Disaggregate path flow estimation in an iterated DTA microsimulation. Report TRANSP-OR 101116


@TechReport{FloeLiu2010,
  author = {Gunnar Fl\"otter\"od and Ronghui Liu},
  title = {Disaggregate path flow estimation in an iterated DTA microsimulation},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2010},
  type = {Technical Report},
  number = {TRANSP-OR 101116},
  address = {Lausanne, Switzerland}}}

Flötteröd G., Bierlaire M. (2010). A framework for the data-consistent deployment of urban microsimulations. Report TRANSP-OR 100904


@TechReport{FloeBier10,
  author = {Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {A framework for the data-consistent deployment of urban microsimulations},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2010},
  type = {Technical Report},
  number = {TRANSP-OR 100904},
  address = {Lausanne, Switzerland}}}

Osorio C., Flötteröd G., Bierlaire M. (2010). Dynamic network loading: a differentiable model that derives link state distributions. Report TRANSP-OR 100815


@TechReport{OsorFloeBier10,
  author = {Carolina Osorio and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Dynamic network loading: a differentiable model that derives link state distributions},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2010},
  type = {Technical Report},
  number = {TRANSP-OR 100815},
  address = {Lausanne, Switzerland}}}

Flötteröd G., Bierlaire M., Nagel K. (2010). Bayesian demand calibration for dynamic traffic simulations. Report TRANSP-OR 100105


@TechReport{FloeBierNage10,
  author = {Gunnar Fl\"otter\"od and Michel Bierlaire and Kai Nagel},
  title = {Bayesian demand calibration for dynamic traffic simulations},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2010},
  type = {Technical Report},
  number = {TRANSP-OR 100105},
  address = {Lausanne, Switzerland}}}

2009

Flötteröd G., Rohde J. (2009). Modeling complex intersections with the cell-transmission model. Report TRANSP-OR 090719


@TechReport{FloeRoh09,
  author = {Gunnar Fl\"otter\"od and Jannis Rohde},
  title = {Modeling complex intersections with the cell-transmission model},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2009},
  type = {Technical Report},
  number = {TRANSP-OR 090719},
  address = {Lausanne, Switzerland}}}

Bierlaire M., Hurtubia R., Flötteröd G. (2009). An experimental analysis of the implicit choice set generation using the Constrained Multinomial Logit model. Report TRANSP-OR 090518


@TechReport{BierHurFlo09,
  author = {Michel Bierlaire and Ricardo Hurtubia and Gunnar Fl\"otter\"od},
  title = {An experimental analysis of the implicit choice set generation using the Constrained Multinomial Logit model},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2009},
  type = {Technical Report},
  number = {TRANSP-OR 090518},
  address = {Lausanne, Switzerland}}}

Lämmel G., Flötteröd G. (2009). Towards system optimum: Finding optimal routing strategies in time dependent networks for large-scale evacuation problems. Report TRANSP-OR 090420


@TechReport{LaemFloe09,
  author = {Gregor L\"ammel and Gunnar Fl\"otter\"od},
  title = {Towards system optimum: Finding optimal routing strategies in time dependent networks for large-scale evacuation problems},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2009},
  type = {Technical Report},
  number = {TRANSP-OR 090420},
  address = {Lausanne, Switzerland}}}

Flötteröd G. (2009). Macroscopic Network Loading of Microscopic Network Demand. Report TRANSP-OR 090115


@TechReport{Floe09,
  author = {Gunnar Fl\"otter\"od},
  title = {Macroscopic Network Loading of Microscopic Network Demand},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2009},
  type = {Technical Report},
  number = {TRANSP-OR 090115},
  address = {Lausanne, Switzerland}}}

2008

Flötteröd G., Bierlaire M., Nagel K. (2008). Bayesian calibration of dynamic traffic simulations. Report TRANSP-OR 081028


@TechReport{FloeBierNage08,
  author = {Gunnar Fl\"otter\"od and Michel Bierlaire and Kai Nagel},
  title = {Bayesian calibration of dynamic traffic simulations},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2008},
  type = {Technical Report},
  number = {TRANSP-OR 081028},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2011

Chen J., Bierlaire M., Flötteröd G. (2011) Probabilistic multi-modal map matching with rich smartphone data. Proceedings of the Swiss Transportation Research Conference (STRC), May 11-13, 2011 , Monte Verit�, Ascona , Switzerland


@InProceedings{STRC_2011_CHEN,
  author = {Jingmin Chen and Michel Bierlaire and Gunnar Fl\"otter\"od},
  title = {Probabilistic multi-modal map matching with rich smartphone data},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), May 11-13, 2011	},
  year = {2011},
  address = {Monte Verit\`a, Ascona	, Switzerland}}}

Huibregtse O., Flötteröd G., Bierlaire M., Hegyi A., Hoogendoorn S. (2011) Optimization of evacuation instructions as a fixed-point problem. Proceedings of the Swiss Transport Research Conference (STRC), May 11 to 13, Ascona / Monte Verita, Switzerland


@InProceedings{Huibregtse2011,
  author = {Olga Huibregtse and Gunnar Fl\"otter\"od and Michel Bierlaire and Andreas Hegyi and Serge Hoogendoorn},
  title = {Optimization of evacuation instructions as a fixed-point problem},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), May 11 to 13},
  year = {2011},
  address = {Ascona / Monte Verita, Switzerland}}}

2010

Hurtubia R., Flötteröd G., Bierlaire M. (2010) Estimation techniques for MEV models with sampling of alternatives. Proceedings of the European Transport ConferenceOctober 11 - 13, Glasgow, Scotland


@InProceedings{Hurt_ETC2010,
  author = {Ricardo Hurtubia and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Estimation techniques for MEV models with sampling of alternatives},
  booktime = {Proceedings of the European Transport Conference, October 11 - 13},
  year = {2010},
  address = {Glasgow, Scotland}}}

Hurtubia R., Martinez F., Flötteröd G., Bierlaire M. (2010) Comparative analysis of hedonic rents and maximum bids in a land-use simulation context. Proceedings of the 10th Swiss Transport Research ConferenceSeptember 1 - 3, 2010, Ascona, Switzerland


@InProceedings{HURTUBIA_STRC_2010,
  author = {Ricardo Hurtubia and Francesco Martinez and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Comparative analysis of hedonic rents and maximum bids in a land-use simulation context},
  booktime = {Proceedings of the 10th Swiss Transport Research Conference, September 1 - 3, 2010},
  year = {2010},
  address = {Ascona, Switzerland}}}

Osorio C., Flötteröd G., Bierlaire M. (2010) A differentiable dynamic network loading model that yields queue length distributions and accounts for spillback. Proceedings of the International Symposium on Dynamic Traffic Assignment (DTA), July 29-31, Takayama, Japan


@InProceedings{DTA_osoFloBie2010,
  author = {Carolina Osorio and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {A differentiable dynamic network loading model that yields queue length distributions and accounts for spillback},
  booktime = {Proceedings of the International Symposium on Dynamic Traffic Assignment (DTA), July 29-31},
  year = {2010},
  address = {Takayama, Japan}}}

Flötteröd G. (2010) A general methodology and a free software for the calibration of DTA models. Proceedings of the The Third International Symposium on Dynamic Traffic Assignment (DTA 2010), July 29 - 31, 2010, Takayama, Japan


@InProceedings{DTA2010_Floetteroed,
  author = {Gunnar Fl\"otter\"od},
  title = {A general methodology and a free software for the calibration of DTA models},
  booktime = {Proceedings of the The Third International Symposium on Dynamic Traffic Assignment (DTA 2010), July 29 - 31, 2010},
  year = {2010},
  address = {Takayama, Japan}}}

Fetiarison M., Flötteröd G., Bierlaire M. (2010) Evaluation of pedestrian data collection methods within a simulation framework. Proceedings of the European Transport Conference (ETC), October 11 - 13, Glasgow, Scotland


@InProceedings{FetiFloeBier_ETC2010,
  author = {Mamy Fetiarison and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Evaluation of pedestrian data collection methods within a simulation framework},
  booktime = {Proceedings of the European Transport Conference (ETC), October 11 - 13},
  year = {2010},
  address = {Glasgow, Scotland}}}

Flötteröd G., Lämmel G. (2010) Evacuation simulation with limited capacity sinks. Proceedings of the International Conference on Evolutionary Computation (ICEC), October 24 - 26, Valencia, Spain


@InProceedings{FloeLaem10,
  author = {Gunnar Fl\"otter\"od and Gregor L\"ammel},
  title = {Evacuation simulation with limited capacity sinks},
  booktime = {Proceedings of the International Conference on Evolutionary Computation (ICEC), October 24 - 26},
  year = {2010},
  address = {Valencia, Spain}}}

Bierlaire M., Flötteröd G. (2010) Metropolis-Hastings sampling of alternatives for route choice models. Proceedings of the Swiss Transport Research Conference (STRC), September 1-3, Ascona / Monte Verita, Switzerland


@InProceedings{BierFloeSTRC2010,
  author = {Michel Bierlaire and Gunnar Fl\"otter\"od},
  title = {Metropolis-Hastings sampling of alternatives for route choice models},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), September 1-3},
  year = {2010},
  address = {Ascona / Monte Verita, Switzerland}}}

Fetiarison M., Flötteröd G., Bierlaire M. (2010) Evaluation of pedestrian data collection methods within a simulation framework. Proceedings of the 10th Swiss Transport Research Conference (STRC), September 1-3, Ascona, Switzerland


@InProceedings{FetiFloeBier_STRC2010,
  author = {Mamy Fetiarison and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Evaluation of pedestrian data collection methods within a simulation framework},
  booktime = {Proceedings of the 10th Swiss Transport Research Conference (STRC), September 1-3},
  year = {2010},
  address = {Ascona, Switzerland}}}

Bierlaire M., Hurtubia R., Flötteröd G. (2010) An analysis of the implicit choice set generation using the Constrained Multinomial Logit model. Proceedings of the Transportation Research Board 2010 Annual Meeting (TRB 2010), January 10-14, Washington, D.C., United States


@InProceedings{BierHurtFloe_TRB10,
  author = {Michel Bierlaire and Ricardo Hurtubia and Gunnar Fl\"otter\"od},
  title = {An analysis of the implicit choice set generation using the Constrained Multinomial Logit model},
  booktime = {Proceedings of the Transportation Research Board 2010 Annual Meeting (TRB 2010), January 10-14},
  year = {2010},
  address = {Washington, D.C., United States}}}

Osorio C., Flötteröd G., Bierlaire M. (2010) A differentiable dynamic network loading model that yields queue length distributions and accounts for spillback. Proceedings of the Triennial Symposium on Transportation Analysis (TRISTAN VII), June 20-25, Troms�, Norway


@InProceedings{TristanOsoFloBie2010,
  author = {Carolina Osorio and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {A differentiable dynamic network loading model that yields queue length distributions and accounts for spillback},
  booktime = {Proceedings of the Triennial Symposium on Transportation Analysis (TRISTAN VII), June 20-25},
  year = {2010},
  address = {Troms{\o}, Norway}}}

2009

Bierlaire M., Hurtubia R., Flötteröd G. (2009) An experimental analysis of the implicit choice set generation using the Constrained Multinomial Logit Model. Proceedings of the 4th Kuhmo-Nectar ConferenceJuly 2 - 3, Copenhagen, Denmark


@InProceedings{BieHurFlo_kuhmo2009,
  author = {Michel Bierlaire and Ricardo Hurtubia and Gunnar Fl\"otter\"od},
  title = {An experimental analysis of the implicit choice set generation using the Constrained Multinomial Logit Model},
  booktime = {Proceedings of the 4th Kuhmo-Nectar Conference, July 2 - 3},
  year = {2009},
  address = {Copenhagen, Denmark}}}

Flötteröd G., Bierlaire M. (2009) Improved estimation of travel demand from traffic counts by a new linearization of the network loading map. Proceedings of the European Transport Conference (ETC), October 5-7, , Netherlands


@InProceedings{ETC2009FloBier,
  author = {Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Improved estimation of travel demand from traffic counts by a new linearization of the network loading map},
  booktime = {Proceedings of the European Transport Conference (ETC), October 5-7},
  year = {2009},
  address = {, Netherlands}}}

Hurtubia R., Flötteröd G., Bierlaire M. (2009) Inferring the activities of smartphone users from context measurements using Bayesian inference and random utility models. Proceedings of the European Transport Conference (ETC), October 5 - 7, , The Netherlands


@InProceedings{HurFloBier_ETC2009,
  author = {Ricardo Hurtubia and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Inferring the activities of smartphone users from context measurements using Bayesian inference and random utility models},
  booktime = {Proceedings of the European Transport Conference (ETC), October 5 - 7},
  year = {2009},
  address = {, The Netherlands}}}

Flötteröd G., Chen Y., Rieser M., Nagel K. (2009) Behavioral calibration of a large-scale travel behavior microsimulation. Proceedings of the 12 International Conference on Travel Behaviour Research (IATBR), December 13-18, Jaipur, Rajasthan, India


@InProceedings{FloCheRieNag09,
  author = {Gunnar Fl\"otter\"od and Yu Chen and Marcel Rieser and Kai Nagel},
  title = {Behavioral calibration of a large-scale travel behavior microsimulation},
  booktime = {Proceedings of the 12 International Conference on Travel Behaviour Research (IATBR), December 13-18},
  year = {2009},
  address = {Jaipur, Rajasthan, India}}}

Illenberger J., Flötteröd G., Kowald M., Nagel K. (2009) A model for spatially embedded social networks. Proceedings of the 12th International Conference on Travel Behavior Research (IATBR), December 13-18, Jaipur, Rajasthan, India


@InProceedings{IllFloKowNag09,
  author = {Johannes Illenberger and Gunnar Fl\"otter\"od and Matthias Kowald and Kai Nagel},
  title = {A model for spatially embedded social networks},
  booktime = {Proceedings of the 12th International Conference on Travel Behavior Research (IATBR), December 13-18},
  year = {2009},
  address = {Jaipur, Rajasthan, India}}}

Nagel K., Flötteröd G. (2009) Agent-based traffic assignment: going from trips to behavioral travelers. Proceedings of the 12th International Conference on Travel Behaviour Research (IATBR), December 13-18, Jaipur, Rajasthan, India


@InProceedings{NagFlo09,
  author = {Kai Nagel and Gunnar Fl\"otter\"od},
  title = {Agent-based traffic assignment: going from trips to behavioral travelers},
  booktime = {Proceedings of the 12th International Conference on Travel Behaviour Research (IATBR), December 13-18},
  year = {2009},
  address = {Jaipur, Rajasthan, India}}}

Bierlaire M., Hurtubia R., Flötteröd G. (2009) A comparative analysis of implicit and explicit methods to model choice set generation. Proceedings of the 9th Swiss Transport Research Conference (STRC), September 9 - 11, Ascona, Switzerland


@InProceedings{BIE_HUR_FLO_STRC2009,
  author = {Michel Bierlaire and Ricardo Hurtubia and Gunnar Fl\"otter\"od},
  title = {A comparative analysis of implicit and explicit methods to model choice set generation},
  booktime = {Proceedings of the 9th Swiss Transport Research Conference (STRC), September 9 - 11},
  year = {2009},
  address = {Ascona, Switzerland}}}

Flötteröd G. (2009) Cadyts � a free calibration tool for dynamic traffic simulations. Proceedings of the 9th Swiss Transport Research Conference (STRC), September 9 - 11, Ascona, Switzerland


@InProceedings{Floetteroed_STRC09,
  author = {Gunnar Fl\"otter\"od},
  title = {Cadyts {\textendash} a free calibration tool for dynamic traffic simulations},
  booktime = {Proceedings of the 9th Swiss Transport Research Conference (STRC), September 9 - 11},
  year = {2009},
  address = {Ascona, Switzerland}}}

Talks

2011

Flötteröd G. 1. Towards a comprehensive calibration methodology for MATSim October 18, 2011. transportation seminar, Technical University of Berlin, Berlin, Germany.


@Misc{FloeTUBNov11,
  author = {Gunnar Fl\"otter\"od},
  title = {1. Towards a comprehensive calibration methodology for MATSim},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/FloeTUBNov11.pdf}},
  year = {2011},
  note = {Presented at transportation seminar, Technical University of Berlin, Berlin, Germany}}}

Flötteröd G. Calibration of traffic simulations from network data October 07, 2011. KTH Transportation Seminar Series, KTH Royal Institute of Technology, Stockholm, Sweden.


@Misc{FloeKTH11b,
  author = {Gunnar Fl\"otter\"od},
  title = {Calibration of traffic simulations from network data},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/FloeKTH11b.pdf}},
  year = {2011},
  note = {Presented at KTH Transportation Seminar Series, KTH Royal Institute of Technology, Stockholm, Sweden}}}

Osorio C., Flötteröd G., Bierlaire M. Dynamic network loading: a stochastic differentiable model that derives link state distributions July 19, 2011. 19th International Symposium on Transportation and Traffic Theory, Berkeley CA.


@Misc{FloeISTTT11,
  author = {Carolina Osorio and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Dynamic network loading: a stochastic differentiable model that derives link state distributions},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/FloeISTTT11.pdf}},
  year = {2011},
  note = {Presented at 19th International Symposium on Transportation and Traffic Theory, Berkeley CA}}}

Flötteröd G., Bierlaire M. Metropolis-Hastings sampling of paths July 06, 2011. International Choice Modeling Conference (ICMC), Oulton Hall, Leeds.


@Misc{FloeICMC2011,
  author = {Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Metropolis-Hastings sampling of paths},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/FloeICMC2011.pdf}},
  year = {2011},
  note = {Presented at International Choice Modeling Conference (ICMC), Oulton Hall, Leeds}}}

Flötteröd G. Disaggregate simulation and some implications for calibration June 28, 2011. MULTITUDE project meeting, Royal Institute of Technology (KTH), Stochholm, Sweden.


@Misc{FloeMULTITUDE2011,
  author = {Gunnar Fl\"otter\"od},
  title = {Disaggregate simulation and some implications for calibration},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/FloeMULTITUDE2011.pdf}},
  year = {2011},
  note = {Presented at MULTITUDE project meeting, Royal Institute of Technology (KTH), Stochholm, Sweden}}}

Flötteröd G., Bierlaire M. Metropolis-Hastings sampling of paths June 22, 2011. Conference on Models and Technologies for Intelligent Transportation Systems (MT-ITS), KU Leuven, Leuven, Belgium.


@Misc{FloeMTITS2011,
  author = {Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Metropolis-Hastings sampling of paths},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/FloeMTITS2011.pdf}},
  year = {2011},
  note = {Presented at Conference on Models and Technologies for Intelligent Transportation Systems (MT-ITS), KU Leuven, Leuven, Belgium}}}

Flötteröd G. Necessary and sufficient condition for unique flows in certain intersection models May 12, 2011. Swiss Transport Research Conference, STRC, Monte Verita / Ascona, Switzerland.


@Misc{FloeSTRC11,
  author = {Gunnar Fl\"otter\"od},
  title = {Necessary and sufficient condition for unique flows in certain intersection models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/FloeSTRC11.pdf}},
  year = {2011},
  note = {Presented at Swiss Transport Research Conference, STRC, Monte Verita / Ascona, Switzerland}}}

Flötteröd G., Bierlaire M. Choice set generation for iterated DTA simulations May 04, 2011. internal seminar, TU Berlin, Berlin, Germany.


@Misc{FloeTUB2011,
  author = {Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Choice set generation for iterated DTA simulations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/FloeTUB2011.pdf}},
  year = {2011},
  note = {Presented at internal seminar, TU Berlin, Berlin, Germany}}}

Flötteröd G. Integrated dynamic transport simulations March 11, 2011. KTH seminar "Methodological advances in transport modeling", KTH Royal Institute of Technology, Stockholm, Sweden.


@Misc{FloeKTH2011,
  author = {Gunnar Fl\"otter\"od},
  title = {Integrated dynamic transport simulations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/FloeKTH2011.pdf}},
  year = {2011},
  note = {Presented at KTH seminar \"Methodological advances in transport modeling\", KTH Royal Institute of Technology, Stockholm, Sweden}}}

Flötteröd G., Liu R. Disaggregate path flow estimation in an iterated DTA microsimulation January 24, 2011. 90th Annual Meeting of the Transportation Research Board, Washington D.C., USA.


@Misc{FloeTRB2011,
  author = {Gunnar Fl\"otter\"od and Ronghui Liu},
  title = {Disaggregate path flow estimation in an iterated DTA microsimulation},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/FloeTRB2011.pdf}},
  year = {2011},
  note = {Presented at 90th Annual Meeting of the Transportation Research Board, Washington D.C., USA}}}

Flötteröd G. Simulation-based dynamic traffic assignment is not a black box January 07, 2011. internal seminar, Massachusetts Institute of Technology, Cambridge MA, USA.


@Misc{FloeBoston2011,
  author = {Gunnar Fl\"otter\"od},
  title = {Simulation-based dynamic traffic assignment is not a black box},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/FloeBoston2011.pdf}},
  year = {2011},
  note = {Presented at internal seminar, Massachusetts Institute of Technology, Cambridge MA, USA}}}

2010

Flötteröd G. File-based interaction between Cadyts and SUMO November 11, 2010. SUMO workshop, German Aerospace Center, Berlin, Germany.


@Misc{Floe_DLR11nov2010,
  author = {Gunnar Fl\"otter\"od},
  title = {File-based interaction between Cadyts and SUMO},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Floe_DLR11nov2010.pdf}},
  year = {2010},
  note = {Presented at SUMO workshop, German Aerospace Center, Berlin, Germany}}}

Osorio C., Flötteröd G., Bierlaire M. Computing full link state distributions in the dynamic network loading problem October 12, 2010. European Transport Conference (ETC), Glasgow, Scotland.


@Misc{FloeETC2010,
  author = {Carolina Osorio and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Computing full link state distributions in the dynamic network loading problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/FloeETC2010.pdf}},
  year = {2010},
  note = {Presented at European Transport Conference (ETC), Glasgow, Scotland}}}

Flötteröd G. Intelligent traffic systems September 14, 2010. eCAADe 2010 -- 28th Conference Future Cities, ETHZ, Zurich, Switzerland.


@Misc{FloeECAADE2010,
  author = {Gunnar Fl\"otter\"od},
  title = {Intelligent traffic systems},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/FloeECAADE2010.pdf}},
  year = {2010},
  note = {Presented at eCAADe 2010 -- 28th Conference Future Cities, ETHZ, Zurich, Switzerland}}}

Bierlaire M., Flötteröd G. Metropolis-Hastings sampling of alternatives for route choice models September 02, 2010. 10th STRC Swiss Transport Research Conference, Ascona / Monte Verita.


@Misc{FloeSTRC2010,
  author = {Michel Bierlaire and Gunnar Fl\"otter\"od},
  title = {Metropolis-Hastings sampling of alternatives for route choice models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/FloeSTRC2010.pdf}},
  year = {2010},
  note = {Presented at 10th STRC Swiss Transport Research Conference, Ascona / Monte Verita}}}

Bierlaire M., Flötteröd G. Metropolis-Hastings sampling of alternatives for route choice models August 20, 2010. Workshop on discrete choice models, EPFL TRANSP-OR, Lausanne, Switzerland.


@Misc{Floe_DC-WS10,
  author = {Michel Bierlaire and Gunnar Fl\"otter\"od},
  title = {Metropolis-Hastings sampling of alternatives for route choice models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Floe_DC-WS10.pdf}},
  year = {2010},
  note = {Presented at Workshop on discrete choice models, EPFL TRANSP-OR, Lausanne, Switzerland}}}

Osorio C., Flötteröd G., Bierlaire M. A differentiable dynamic network loading model that yields queue length distributions and accounts for spillback July 30, 2010. DTA 2010 -- The Third International Symposium on Dynamic Traffic Assignment, Takayama, Japan.


@Misc{Floe_DTA10b,
  author = {Carolina Osorio and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {A differentiable dynamic network loading model that yields queue length distributions and accounts for spillback},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Floe_DTA10b.pdf}},
  year = {2010},
  note = {Presented at DTA 2010 -- The Third International Symposium on Dynamic Traffic Assignment, Takayama, Japan}}}

Flötteröd G. A general methodology and a free software for the calibration of DTA models July 29, 2010. DTA 2010 -- The Third International Symposium on Dynamic Traffic Assignment, Takayama, Japan.


@Misc{Floe_DTA10a,
  author = {Gunnar Fl\"otter\"od},
  title = {A general methodology and a free software for the calibration of DTA models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Floe_DTA10a.pdf}},
  year = {2010},
  note = {Presented at DTA 2010 -- The Third International Symposium on Dynamic Traffic Assignment, Takayama, Japan}}}

Flötteröd G. Estimation of choice models in dynamic traffic simulations July 23, 2010. ITS Leeds Seminar series, Institute for Transport Studies, University of Leeds, Leeds, England.


@Misc{Floe_Leeds10,
  author = {Gunnar Fl\"otter\"od},
  title = {Estimation of choice models in dynamic traffic simulations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Floe_Leeds10.pdf}},
  year = {2010},
  note = {Presented at ITS Leeds Seminar series, Institute for Transport Studies, University of Leeds, Leeds, England}}}

Flötteröd G., Bierlaire M. A framework for the data-consistent deployment of urban microsimulations July 09, 2010. Traffic Flow Theory and Characteristics Committee (AHB45) Summer Meeting of the Transportation Research Board, Annecy, France.


@Misc{Floe_Annecy10,
  author = {Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {A framework for the data-consistent deployment of urban microsimulations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Floe_Annecy10.pdf}},
  year = {2010},
  note = {Presented at Traffic Flow Theory and Characteristics Committee (AHB45) Summer Meeting of the Transportation Research Board, Annecy, France}}}

Himpe W., Flötteröd G., Hurtubia R., Bierlaire M. Modeling the dynamics of all-day activity plans June 22, 2010. Seventh Triennial Symposium on Transportation Analysis (TRISTAN VII), Tromso, Norway.


@Misc{Floe_Tristan10b,
  author = {Willem Himpe and Gunnar Fl\"otter\"od and Ricardo Hurtubia and Michel Bierlaire},
  title = {Modeling the dynamics of all-day activity plans},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Floe_Tristan10b.pdf}},
  year = {2010},
  note = {Presented at Seventh Triennial Symposium on Transportation Analysis (TRISTAN VII), Tromso, Norway}}}

Osorio C., Flötteröd G., Bierlaire M. A differentiable dynamic network loading model that yields queue length distributions and accounts for spillback June 21, 2010. Seventh Triennial Symposium on Transportation Analysis (TRISTAN VII), Tromso, Norway.


@Misc{Floe_Tristan10a,
  author = {Carolina Osorio and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {A differentiable dynamic network loading model that yields queue length distributions and accounts for spillback},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Floe_Tristan10a.pdf}},
  year = {2010},
  note = {Presented at Seventh Triennial Symposium on Transportation Analysis (TRISTAN VII), Tromso, Norway}}}

Flötteröd G., Chen Y. Demand calibration from network data May 19, 2010. MATSim user meeting, ETH Zurich, Zurich, Switzerland.


@Misc{Floe_19may2010,
  author = {Gunnar Fl\"otter\"od and Yu Chen},
  title = {Demand calibration from network data},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Floe_19may2010.pdf}},
  year = {2010},
  note = {Presented at MATSim user meeting, ETH Zurich, Zurich, Switzerland}}}

Flötteröd G. Models and methods for road traffic telematics May 05, 2010. IVT-Seminar "Perspektiven der Strassenverkehrstechnik" (perspectives of road traffic engineering), ETH Zurich, Zurich, Switzerland.


@Misc{Floe_5may2010,
  author = {Gunnar Fl\"otter\"od},
  title = {Models and methods for road traffic telematics},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Floe_5may2010.pdf}},
  year = {2010},
  note = {Presented at IVT-Seminar \"Perspektiven der Strassenverkehrstechnik\" (perspectives of road traffic engineering), ETH Zurich, Zurich, Switzerland}}}

Flötteröd G. Going beyond path flow estimation -- calibration of arbitrary demand dimensions from traffic counts February 04, 2010. Workshop of COST Action TU0903 "Methods and tools for supporting the use, calibration and validation of traffic simulation models", Barcelona, Spain.


@Misc{Floe_Feb2010,
  author = {Gunnar Fl\"otter\"od},
  title = {Going beyond path flow estimation -- calibration of arbitrary demand dimensions from traffic counts},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Floe_Feb2010.pdf}},
  year = {2010},
  note = {Presented at Workshop of COST Action TU0903 \"Methods and tools for supporting the use, calibration and validation of traffic simulation models\", Barcelona, Spain}}}

2009

Flötteröd G., Chen Y., Rieser M., Nagel K. Behavioral calibration of a large-scale travel behavior microsimulation December 17, 2009. 12th International Conference on Travel Behavior Research (IATBR), Jaipur, India.


@Misc{IATBR09_Floetteroed,
  author = {Gunnar Fl\"otter\"od and Yu Chen and Marcel Rieser and Kai Nagel},
  title = {Behavioral calibration of a large-scale travel behavior microsimulation},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/IATBR09_Floetteroed.pdf}},
  year = {2009},
  note = {Presented at 12th International Conference on Travel Behavior Research (IATBR), Jaipur, India}}}

Flötteröd G., Bierlaire M. Improved estimation of travel demand from traffic counts based on a new linearization of the network loading map October 07, 2009. European Transport Research Conference 2009, Leeuwenhorst, The Netherlands.


@Misc{ETC09_FloeBier,
  author = {Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Improved estimation of travel demand from traffic counts based on a new linearization of the network loading map},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/ETC09_FloeBier.pdf}},
  year = {2009},
  note = {Presented at European Transport Research Conference 2009, Leeuwenhorst, The Netherlands}}}

Flötteröd G. Cadyts - a free calibration tool for dynamic traffic simulations September 10, 2009. 9th Swiss Transport Research Conference, Ascona / Monte Verita.


@Misc{STRC09-GF,
  author = {Gunnar Fl\"otter\"od},
  title = {Cadyts - a free calibration tool for dynamic traffic simulations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/STRC09-GF.pdf}},
  year = {2009},
  note = {Presented at 9th Swiss Transport Research Conference, Ascona / Monte Verita}}}

Flötteröd G. Recent advances in the calibration of travel demand models from traffic counts June 24, 2009. presented to the committee VSS FK 9 in ITS of the Swiss association of road and transportation experts, EPFL, Lausanne.


@Misc{VSSFK9calibration,
  author = {Gunnar Fl\"otter\"od},
  title = {Recent advances in the calibration of travel demand models from traffic counts},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/VSSFK9calibration.pdf}},
  year = {2009},
  note = {Presented at presented to the committee VSS FK 9 in ITS of the Swiss association of road and transportation experts, EPFL, Lausanne}}}

Flötteröd G. Transportation research at the TRANSP-OR laboratory June 24, 2009. presented to the committee VSS FK 9 in ITS of the Swiss association of road and transportation experts, EPFL, Lausanne.


@Misc{VSSFK9general,
  author = {Gunnar Fl\"otter\"od},
  title = {Transportation research at the TRANSP-OR laboratory},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/VSSFK9general.pdf}},
  year = {2009},
  note = {Presented at presented to the committee VSS FK 9 in ITS of the Swiss association of road and transportation experts, EPFL, Lausanne}}}

Reviewing

EPFL courses

Spring 2011

Intelligent Transportation Systems.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Gunnar Fl�tter�d
- Webpage: http://moodle.epfl.ch/course/view.php?id=9901
Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Gunnar Fl�tter�d
- Teaching assistant: Ilaria Vacca
- Webpage: http://moodle.epfl.ch/course/view.php?id=6791

Spring 2010

M�thodologies d'aide � la d�cision dans le domaine des transports.
- Level: Master
- Section: Civil Engineering
- Lecturers: Michel Bierlaire, Gunnar Fl�tter�d, Jean-Pierre Leyvraz, Niklaus Eggenberg
Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Gunnar Fl�tter�d
- Teaching assistant: Ilaria Vacca
- Webpage: http://moodle.epfl.ch/course/view.php?id=6791

Spring 2009

M�thodologies d'aide � la d�cision dans le domaine des transports.
- Level: Master
- Section: Civil Engineering
- Lecturers: Michel Bierlaire, Matteo Salani, Jean-Pierre Leyvraz, Gunnar Fl�tter�d
- Webpage: http://moodle.epfl.ch/course/view.php?id=2361

Various lectures

2009

Challenges in the calibration of transport network models.
- TransportNET course on Transport Systems, EPFL, Lausanne, Switzerland
- Mar 04, 2009
- Lecturer: Gunnar Fl�tter�d

Master theses

2011

An analysis of Singapore's road pricing system using Multi-agent transport simulations, Youssef Mezdani (Civil Engineering)
- Supervision: Gunnar Flötteröd
- External expert: Dr. Alexander Erath

2009-2010

Combining heterogeneous sensor information for the activity tracking of smart phone users, Willem Himpe (None)
- Supervision: Michel Bierlaire, Gunnar Flötteröd, Ricardo Hurtubia
- External expert: Prof. Ben Immers, Dr. Chris Tampere

Semester projects

2010-2011

Prototype MATSim model for Brussels, Sohrab Sahaleh (Civil Engineering)

Supervision: Gunnar Flötteröd, Ricardo Hurtubia

An analysis of a potential implementation and investigation Singapore's road pricing system within the MATSim transportation microsimulation, Youssef Mezdani

Supervision: Gunnar Flötteröd

Quantitative analysis of urban sustainability indicators, Timothée Vincent (Civil Engineering)

Supervision: Gunnar Flötteröd, Ricardo Hurtubia

Jeffrey Newman

Jeffrey Newman has been a member of the laboratory from Aug 01, 2008 to Sep 30, 2009

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Jeffrey Newman.

Journal articles

2013

Bierlaire M., Chen J., Newman J. (2013). A Probabilistic Map Matching Method for Smartphone GPS data. Transportation Research Part C: Emerging Technologies 26 :78�98


@Article{BierChenNewm12,
  author = {Michel Bierlaire and Jingmin Chen and Jeffrey Newman},
  title = {A Probabilistic Map Matching Method for Smartphone GPS data},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2013},
  volume = {26},
  pages = {78{\textendash}98},
  DOI = {10.1016/j.trc.2012.08.001},
  note = {Accepted on Aug 03, 2012}}}

2010

Newman J., Bernardin V. (2010). Hierarchical ordering of nests in a joint mode and destination choice model. Transportation 37 (4):677-688

This paper seeks to explore the relationship between mode and destination choice in an integrated nested choice model. A fundamental argument can be made that in certain circumstances, the ordering of choices should be reversed from the usual sequence of destination choice preceding mode choice. This results in a travel demand model where travelers are more likely to change destinations than to change transportation modes. For small and medium size urban areas, particularly in the United States, with less well developed public transit systems that draw few choice riders, this assumption makes much more sense than the traditional modeling assumptions. The models used in the new travel modeling system developed for Knoxville, Tennessee utilize this reversed ordering, with generally good results, which required no external tinkering in the logsum parameters.
```
@Article{NewmBern10,
  author = {Jeffrey Newman and {Vincent Jr} Bernardin},
  title = { Hierarchical ordering of nests in a joint mode and destination choice model},
  journal = {Transportation},
  year = {2010},
  volume = {37},
  number = {4},
  pages = {677-688},
  DOI = {10.1007/s11116-010-9277-x},
  note = {Accepted on Apr 01, 2010}}}
```

2008

Newman J. (2008). Normalization of network generalized extreme value models. Transportation Research Part B: Methodological 42 (10):958-969

Abstract Generalized extreme value (GEV) models provide a convenient way to model choice behavior that is consistent with utility maximization theory, but the development of specific new models within the GEV family has been slow, due to the difficulty of ensuring new formulations comply with all the GEV rules. The network GEV structure introduced by Daly and Bierlaire [Daly, A. and M. Bierlaire, 2006. A general and operational representation of Generalised Extreme Value models. Transportation Research Part B, v. 40, pp. 285-305.] provides a tool to quickly generate new models in the GEV family, without the burden of complex analysis of the new model to ensure its properties. This paper further develops the network GEV tool, describing several methodologies for correctly normalizing the allocation parameters in such models, to ensure unbiasedness. These methods vary depending on the structure of the underlying network.
```
@Article{Newman08,
  author = {Jeffrey Newman},
  title = {Normalization of network generalized extreme value models},
  journal = {Transportation Research Part B: Methodological},
  year = {2008},
  volume = {42},
  number = {10},
  pages = {958-969},
  DOI = {10.1016/j.trb.2008.04.001 },
  note = {Accepted on Apr 20, 2008}}}
```

Book chapters

2010

Newman J. (2010) Network GEV Models. In Laurie Garrow (ed) Discrete Choice Modelling and Air Travel Demand, Ashgate [ISBN 978-0-7546-7051-3]


@InProceedings{Newm10b,
  author = {Jeffrey Newman},
  title = {Network GEV Models},
  year = {2010},
  booktile = {Discrete Choice Modelling and Air Travel Demand},
  editor = {Laurie Garrow},
  publisher = {Ashgate}}}

Technical reports

2010

Bierlaire M., Chen J., Newman J. (2010). Modeling Route Choice Behavior From Smartphone GPS data. Report TRANSP-OR 101016


@TechReport{BierChenNewm10,
  author = {Michel Bierlaire and Jingmin Chen and Jeffrey Newman},
  title = {Modeling Route Choice Behavior From Smartphone GPS data},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2010},
  type = {Technical Report},
  number = {TRANSP-OR 101016},
  address = {Lausanne, Switzerland}}}

2009

Newman J. (2009). Systematically heterogeneous covariance in network GEV Models. Report


@TechReport{Newm09,
  author = {Jeffrey Newman},
  title = {Systematically heterogeneous covariance in network GEV Models},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2009},
  type = {Technical Report},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2010

Bierlaire M., Chen J., Newman J. (2010) Using location observations to observe routing for choice models. Proceedings of the 89th Transportation Research Board Annual Meeting (TRB), January 10-14, Washington D.C., US


@InProceedings{trb10bierchennewman,
  author = {Michel Bierlaire and Jingmin Chen and Jeffrey Newman},
  title = {Using location observations to observe routing for choice models},
  booktime = {Proceedings of the 89th Transportation Research Board Annual Meeting (TRB), January 10-14},
  year = {2010},
  address = {Washington D.C., US}}}

2009

Newman J., Chen J., Bierlaire M. (2009) Generating probabilistic path observation from GPS data for route choice modeling. Proceedings of the European Transport Conference (ETC), 5-7 October 2009, , The Netherlands


@InProceedings{etcnewchenbier09,
  author = {Jeffrey Newman and Jingmin Chen and Michel Bierlaire},
  title = {Generating probabilistic path observation from GPS data for route choice modeling},
  booktime = {Proceedings of the European Transport Conference (ETC), 5-7 October 2009},
  year = {2009},
  address = {, The Netherlands}}}

Chen J., Newman J., Bierlaire M. (2009) Modeling Route Choice Behavior From Smart-phone GPS data. Proceedings of the The 12th International Conference on Travel Behaviour Research (IATBR), December 13-18, 2009, Jaipur, India


@InProceedings{CHEN09_IATBR,
  author = {Jingmin Chen and Jeffrey Newman and Michel Bierlaire},
  title = {Modeling Route Choice Behavior From Smart-phone GPS data},
  booktime = {Proceedings of the The 12th International Conference on Travel Behaviour Research (IATBR), December 13-18, 2009},
  year = {2009},
  address = {Jaipur, India}}}

Newman J. (2009) Systematically heterogeneous covariance in network GEV models. Proceedings of the International Choice Modelling Conference (ICMC), 30 March - 1 April, Harrogate, UK


@InProceedings{Newm09a,
  author = {Jeffrey Newman},
  title = {Systematically heterogeneous covariance in network GEV models},
  booktime = {Proceedings of the International Choice Modelling Conference (ICMC), 30 March - 1 April},
  year = {2009},
  address = {Harrogate, UK}}}

Bierlaire M., Newman J., Chen J. (2009) A method of probabilistic map distribution of path likelihood. Proceedings of the 9th Swiss Transport Research Conference (STRC), September 9 - 11, Ascona, Switzerland


@InProceedings{strc09chen,
  author = {Michel Bierlaire and Jeffrey Newman and Jingmin Chen},
  title = {A method of probabilistic map distribution of path likelihood},
  booktime = {Proceedings of the 9th Swiss Transport Research Conference (STRC), September 9 - 11},
  year = {2009},
  address = {Ascona, Switzerland}}}

Talks

2009

Newman J., Bierlaire M. Properties, advantages, and drawbacks of the block logit model September 09, 2009. 9th Swiss Transport Research Conference, Ascona, Switzerland.


@Misc{Newm_STRC_09,
  author = {Jeffrey Newman and Michel Bierlaire},
  title = {Properties, advantages, and drawbacks of the block logit model},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Newm_STRC_09.pdf}},
  year = {2009},
  note = {Presented at 9th Swiss Transport Research Conference, Ascona, Switzerland}}}

Newman J. Pay no attention to the alternatives behind the curtain: demand forecasting with missing data August 27, 2009. Workshop on discrete choice models, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.


@Misc{WDCA09n,
  author = {Jeffrey Newman},
  title = {Pay no attention to the alternatives behind the curtain: demand forecasting with missing data},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/WDCA09n.pdf}},
  year = {2009},
  note = {Presented at Workshop on discrete choice models, Ecole Polytechnique F\éd\érale de Lausanne, Lausanne, Switzerland}}}

2008

Newman J. Pieces of Choices: Alternative Allocations in Network-GEV Models August 26, 2008. Workshop on Discrete Choice Models, EPFL, Lausanne, Switzerland.


@Misc{JPN08a,
  author = {Jeffrey Newman},
  title = {Pieces of Choices: Alternative Allocations in Network-GEV Models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/JPN08a.pdf}},
  year = {2008},
  note = {Presented at Workshop on Discrete Choice Models, EPFL, Lausanne, Switzerland}}}

Research projects

2008

Disaggregate behavioral models exploiting data from Nokia devices

The projects aims at investigating how to perform an appropriate fusion of data from smartphones in order to predict the mobility behavior of a given individual.
- Dec 01, 2008 - Jun 30, 2010
- Sponsor: Nokia Research Center
- Principal investigator: Michel Bierlaire
- Project manager: Jeffrey Newman
- Collaborator: Jingmin Chen

EPFL courses

Fall 2008

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Management of Technology and Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Thomas Robin, Jeffrey Newman
- Webpage: NULL

Various lectures

2009

Air Travel behaviour modelling.
- TransportNET course on Transport Systems, EPFL, Lausanne, Switzerland
- Mar 02, 2009
- Lecturer: Jeffrey Newman

Kamran Houshang Pour

Kamran Houshang Pour has been a member of the laboratory from Feb 01, 2007 to Mar 31, 2008

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Kamran Houshang Pour.

Research projects

2006

Path to purchase

To understand consumer behavior in his or her path to purchase.
- Jul 01, 2006 - Jun 30, 2008
- Sponsor: Nestlé
- Principal investigator: Michel Bierlaire
- Project manager: Kamran Houshang Pour
- Collaborators: Thomas Robin, Gianluca Antonini

Zachary Patterson

Zachary Patterson has been a member of the laboratory from Oct 01, 2006 to Aug 31, 2008

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Zachary Patterson.

Journal articles

2010

Patterson Z., Kryvobokov M., Marchal F., Bierlaire M. (2010). Disaggregate Models with Aggregate Data: Two UrbanSim Applications. Journal of Transport and Land Use 3 (2):5-37


@Article{PattKryvMarcBier10,
  author = {Zachary Patterson and Marko Kryvobokov and Fabrice Marchal and Michel Bierlaire},
  title = {Disaggregate Models with Aggregate Data: Two UrbanSim Applications},
  journal = {Journal of Transport and Land Use},
  year = {2010},
  volume = {3},
  number = {2},
  pages = {5-37},
  DOI = {10.5198/jtlu.v3i2.113},
  note = {Accepted on Jan 08, 2010}}}

Patterson Z., Bierlaire M. (2010). Development of Prototype UrbanSim Models. Environment and Planning B 37 (2):344-366

UrbanSim is an integrated transportation land-use model that has been under development since the late 1990s. It has received a significant amount of attention in the integrated modeling community. It is well known for its disaggregated approach. A number of papers describing the application of UrbanSim have appeared in the formal and gray literatures. Some of these papers report on successful applications of UrbanSim with little description of the amount of effort required to develop an operational model. Those that do report on the effort and challenges of using UrbanSim suggest that substantial data and human resources are required. One recent report quantifies the human resource requirements as an interdisciplinary team of four for three years. This reputation makes many potential users think twice before developing an UrbanSim model. We believe the best way to evaluate UrbanSim for a new region is by having a sense of how it can be used, and how much effort is required to do so. Understanding UrbanSim, however, does not require having a fully operational model. This paper is aimed at researchers and institutions that would like to evaluate UrbanSim, but are concerned about the effort required to do so. Based on two applications (Brussels in Belgium and Lausanne in Switzerland), it describes a procedure to develop a prototype UrbanSim model and how to use it to evaluate UrbanSim for application to a new region. Its objective is to motivate, describe, comment and illustrate a procedure for an efficient evaluation of the use of UrbanSim. Its main contributions are threefold. First, it develops a procedure by which a prototype UrbanSim model can be developed for evaluation purposes in a new region. Second, it provides an analysis of the effort required to do so. Finally, in so doing it advances knowledge in the field of transportation and land-use modeling by helping modelers to evaluate the use of UrbanSim for a particular study region, in a rigorous and systematic way.
```
@Article{PattBier09,
  author = {Zachary Patterson and Michel Bierlaire},
  title = {Development of Prototype UrbanSim Models},
  journal = {Environment and Planning B},
  year = {2010},
  volume = {37},
  number = {2},
  pages = {344-366},
  DOI = {10.1068/b35107},
  note = {Accepted on Jul 08, 2009}}}
```

2008

Patterson Z., Ewing G., Haider M. (2008). The Potential for Premium-intermodal Services to Reduce Freight CO2 Emissions in the Quebec City - Windsor Corridor. Transportation Research Part D: Transport and Environment 13 (1):1-9

The Quebec City-Windsor corridor (the Corridor) is the busiest and most important trade and transportation corridor in Canada. The transportation sector is the second largest greenhouse gas (GHG) emission category in the country. This paper develops estimates of the potential for CO2 emission reductions in the freight transportation sector by estimating demand for premium-intermodal services between the main Corridor destinations. CO2 reductions are estimated on the basis of a stated-preference carrier-choice survey of shippers in the Corridor. Survey data were used to develop mode share models for five different categories of shipments between eighteen city-pairs. A railyard-catchment approach was taken to arrive at estimates of contestable intercity truck traffic using a subset of the Ontario Ministry of Transportation’s Commercial Vehicle Survey. CO2 emissions were based on current truck traffic estimates, and emissions factors obtained from MOBILE6.2C. The results show that premium-intermodal service has the potential to capture a significant share of traffic between the main Corridor destinations with potential CO2 emissions reductions in the range of 0.058 to 0.484 Mt a year.
```
@Article{PattEwinHaid2008,
  author = {Zachary Patterson and Gordon Ewing and Murtaza Haider},
  title = {The Potential for Premium-intermodal Services to Reduce Freight CO2 Emissions in the Quebec City - Windsor Corridor},
  journal = {Transportation Research Part D: Transport and Environment},
  year = {2008},
  volume = {13},
  number = {1},
  pages = {1-9},
  DOI = {10.1016/j.trd.2007.10.001},
  note = {Accepted on Oct 01, 2007}}}
```

2007

Patterson Z., Ewing G., Haider M. (2007). Shipper Mistrust of Rail Use: First Stated Preference Carrier Choice Survey for the Quebec City - Windsor Corridor. Transportation Research Record 2008 :67-74

The Quebec City-Windsor corridor is the busiest and most important trade and transportation corridor in Canada. The transportation sector is the second largest contributor to greenhouse gas (GHG) emissions in the country. Governments around the world, including Canada, are considering increased mode share by rail as a way to reduce transportation emissions. To understand whether freight mode shift is a realistic means to reduce transportation emissions, an analytical model is needed that can predict the effect of government policy on mode split. This paper presents the findings of the first such model developed for the Quebec City-Windsor Corridor. The model itself is a stated preference carrier choice model of shippers in this busy corridor. The model was developed using the results of a stated preference survey undertaken in the fall of 2005. The survey was designed explicitly to evaluate shipper preferences for the carriage of intercity consignments, and particularly their preferences for carriers that contract the services of rail companies to carry these shipments via rail. The results of the study show that shippers are very mistrustful of using rail to move their consignments and suggests that increasing rail’s share of freight faces tremendous challenges.
```
@Article{PattEwinHaid07a,
  author = {Zachary Patterson and Gordon Ewing and Murtaza Haider},
  title = {Shipper Mistrust of Rail Use: First Stated Preference Carrier Choice Survey for the Quebec City - Windsor Corridor},
  journal = {Transportation Research Record},
  year = {2007},
  volume = {2008},
  pages = {67-74},
  DOI = {10.3141/2008-09},
  note = {Accepted on Mar 02, 2007}}}
```

2005

Patterson Z., Ewing G., Haider M. (2005). A Gender-based Analysis of Work Trip Mode Choice of Suburban Montreal Commuters Using Stated Preference Data. Transportation Research Record 1924 :85-93

Transportation literature suggests that men and women have different characteristics with respect to commuting patterns, as well as with respect to their propensity to switch between travel options. In North America, women are expected to have an increasing impact on travel demand. As such, differences in female responses to travel demand management strategies are likely to become increasingly important as governments try to curtail travel demand in the future. This paper uses a 1994 stated preference (SP) survey of suburban commuters in Montreal to: determine whether there is evidence for differences between men and women in the factors that affect work trip choices; quantify those differences; and suggest what these differences imply for travel demand management in the future in Montreal. The main conclusions of this paper are as follows. First, women and men should be modeled separately with respect to work trip mode choice. Second, there are three main differences that appear from the econometric models: women are less likely to choose public transit than men; women are more likely to choose to rideshare; and women are less time sensitive when it comes to commuting than men are.
```
@Article{PatEwiHai2005,
  author = {Zachary Patterson and Gordon Ewing and Murtaza Haider},
  title = {A Gender-based Analysis of Work Trip Mode Choice of Suburban Montreal Commuters Using Stated Preference Data},
  journal = {Transportation Research Record},
  year = {2005},
  volume = {1924},
  pages = {85-93},
  DOI = {10.3141/1924-11},
  note = {Accepted on Mar 01, 2005}}}
```

Book chapters

2008

Patterson Z., Thalmann P. (2008) Road pricing as a means to reduce congestion. In Lavadinho S. and Leuba J. (ed) Territories of debate in a direct democracy "Space: the Achilles' heel of sustainable development?", Spacewatch , Lausanne, Switzerland


@InProceedings{PattThal08,
  author = {Zachary Patterson and Philippe Thalmann},
  title = {Road pricing as a means to reduce congestion},
  year = {2008},
  booktile = {Territories of debate in a direct democracy ''Space: the Achilles' heel of sustainable development?''},
  editor = {Lavadinho S. and Leuba J.},
  publisher = {Spacewatch},
  address = {Lausanne, Switzerland},
  pages = {14-17}}}

Technical reports

2008

Patterson Z., Bierlaire M. (2008). Development of Prototype UrbanSim Models. Report TRANSP-OR 080814


@TechReport{PattBier2008,
  author = {Zachary Patterson and Michel Bierlaire},
  title = {Development of Prototype UrbanSim Models},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2008},
  type = {Technical Report},
  number = {TRANSP-OR 080814},
  address = {Lausanne, Switzerland}}}

Patterson Z., Hurtubia R. (2008). A Prototype Integrated Transportation Land-use Model for the Lausanne Region. Report


@TechReport{PattHurt2008,
  author = {Zachary Patterson and Ricardo Hurtubia},
  title = {A Prototype Integrated Transportation Land-use Model for the Lausanne Region},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2008},
  type = {Technical Report},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2007

Patterson Z., Ewing G., Haider M. (2007) Is Carrier Choice Different for 3PLs and other End-shippers? Some Preliminary Findings. Proceedings of the 42nd Canadian Transportation Research Forum (CTRF), 2-6 June 2007, Winnipeg, Canada


@InProceedings{pattersonctrf2007,
  author = {Zachary Patterson and Gordon Ewing and Murtaza Haider},
  title = {Is Carrier Choice Different for 3PLs and other End-shippers? Some Preliminary Findings},
  booktime = {Proceedings of the 42nd Canadian Transportation Research Forum (CTRF), 2-6 June 2007},
  year = {2007},
  address = {Winnipeg, Canada}}}

Patterson Z., Bierlaire M. (2007) An UrbanSim Model of Brussels in a Short Timeline. Proceedings of the Swiss Transport Research Conference (STRC), 12-14 September, Monte Verita, Switzerland


@InProceedings{PattersonBierlaire2007a,
  author = {Zachary Patterson and Michel Bierlaire},
  title = {An UrbanSim Model of Brussels in a Short Timeline},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), 12-14 September},
  year = {2007},
  address = {Monte Verita, Switzerland}}}

Patterson Z., Ewing G., Haider M. (2007) Shipper Mistrust of Rail Use: First Stated Preference Carrier Choice Survey for the Quebec City - Windsor Corridor. Proceedings of the 86th Meeting of the Transportation Research Board (TRB), 21-25 January 2007, Washington, DC, USA


@InProceedings{PattEwinHaid07a,
  author = {Zachary Patterson and Gordon Ewing and Murtaza Haider},
  title = {Shipper Mistrust of Rail Use: First Stated Preference Carrier Choice Survey for the Quebec City - Windsor Corridor},
  booktime = {Proceedings of the 86th Meeting of the Transportation Research Board (TRB), 21-25 January 2007},
  year = {2007},
  address = {Washington, DC, USA}}}

Patterson Z., Ewing G., Haider M. (2007) The Potential for Premium-intermodal Services to Reduce Freight CO2 Emissions in the Quebec City - Windsor Corridor: A Stated Preference Application. Proceedings of the 86th Meeting of the Transportation Research Board (TRB), 21-25 January 2007, Washington, DC, USA


@InProceedings{PattEwinHaid07b,
  author = {Zachary Patterson and Gordon Ewing and Murtaza Haider},
  title = {The Potential for Premium-intermodal Services to Reduce Freight CO2 Emissions in the Quebec City - Windsor Corridor: A Stated Preference Application},
  booktime = {Proceedings of the 86th Meeting of the Transportation Research Board (TRB), 21-25 January 2007},
  year = {2007},
  address = {Washington, DC, USA}}}

Patterson Z., Ewing G., Haider M. (2007) Mode and Carrier Choice in the Quebec City - Windsor Corridor: A Random Parameters Approach. Proceedings of the 6th Triennal Symposium on Transportation Analysis (TRISTAN-VI), 10-15 June 2007, Phuket Island, Thailand


@InProceedings{pattersontristantVI,
  author = {Zachary Patterson and Gordon Ewing and Murtaza Haider},
  title = {Mode and Carrier Choice in the Quebec City - Windsor Corridor: A Random Parameters Approach},
  booktime = {Proceedings of the 6th Triennal Symposium on Transportation Analysis (TRISTAN-VI), 10-15 June 2007},
  year = {2007},
  address = {Phuket Island, Thailand}}}

Talks

2007

Patterson Z. La planification des transports et la forme urbaine : de l'approche traditionnelle vers les mod�les int�gr�s October 09, 2007. Conférences de l'Inter, EPFL, Lausanne.


@Misc{ZPINTER,
  author = {Zachary Patterson},
  title = {La planification des transports et la forme urbaine : de l'approche traditionnelle vers les mod\`eles int\'egr\'es},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/ZPINTER.pdf}},
  year = {2007},
  note = {Presented at Conf\érences de l'Inter, EPFL, Lausanne}}}

Patterson Z., Bierlaire M. An UrbanSim Model of Brussels in a Short Timeline September 13, 2007. Swiss Transport Research Conference, Monte Verita.


@Misc{ZP-STRC-07,
  author = {Zachary Patterson and Michel Bierlaire},
  title = {An UrbanSim Model of Brussels in a Short Timeline},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/ZP-STRC-07.pdf}},
  year = {2007},
  note = {Presented at Swiss Transport Research Conference, Monte Verita}}}

Patterson Z. Mode and Carrier Choice in the Quebec City - A Random Parameters Approach August 31, 2007. Third Workshop on Discrete Choice Models, Transport and Mobility Laboratory, EPFL, Lausanne, Switzerland.


@Misc{DCA07-ZAK,
  author = {Zachary Patterson},
  title = {Mode and Carrier Choice in the Quebec City - A Random Parameters Approach},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/DCA07-ZAK.pdf}},
  year = {2007},
  note = {Presented at Third Workshop on Discrete Choice Models, Transport and Mobility Laboratory, EPFL, Lausanne, Switzerland}}}

Patterson Z., Ewing G., Haider M. Mode and Carrier Choice in the Quebec City - Windsor Corridor: A Random Parameters Approach June 11, 2007. TRISTAN-VI, EPFL, Phuket Island, Thailand.


@Misc{TRISTAN-ZP,
  author = {Zachary Patterson and Gordon Ewing and Murtaza Haider},
  title = {Mode and Carrier Choice in the Quebec City - Windsor Corridor: A Random Parameters Approach},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/TRISTAN-ZP.pdf}},
  year = {2007},
  note = {Presented at TRISTAN-VI, EPFL, Phuket Island, Thailand}}}

Patterson Z., Ewing G., Haider M. Is Carrier Choice Different for 3PLs and other End-shippers? Some Preliminary Findings June 04, 2007. Canadian Transportation Research Forum, Winnipeg, Canada.


@Misc{CTRF-ZP,
  author = {Zachary Patterson and Gordon Ewing and Murtaza Haider},
  title = {Is Carrier Choice Different for 3PLs and other End-shippers? Some Preliminary Findings},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/CTRF-ZP.pdf}},
  year = {2007},
  note = {Presented at Canadian Transportation Research Forum, Winnipeg, Canada}}}

Patterson Z. Exploring the impact of gender in travel behaviour: A case study of suburban commuters in Montreal March 19, 2007. (Invited lecture), McGill University, School of Urban Planning, Montreal, Quebec.


@Misc{patt200701,
  author = {Zachary Patterson},
  title = {Exploring the impact of gender in travel behaviour: A case study of suburban commuters in Montreal},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/patt200701.pdf}},
  year = {2007},
  note = {Presented at , McGill University, School of Urban Planning, Montreal, Quebec}}}

Patterson Z., Ewing G., Haider M. Shipper Mistrust of Rail Use: First Stated Preference Carrier Choice Survey for the Quebec City - Windsor Corridor January 23, 2007. 86th Annual Meeting of the Transportation Research Board, Transportation Research Board, Washington, DC.


@Misc{TRB07a,
  author = {Zachary Patterson and Gordon Ewing and Murtaza Haider},
  title = {Shipper Mistrust of Rail Use: First Stated Preference Carrier Choice Survey for the Quebec City - Windsor Corridor},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/TRB07a.pdf}},
  year = {2007},
  note = {Presented at 86th Annual Meeting of the Transportation Research Board, Transportation Research Board, Washington, DC}}}

2006

Patterson Z. The potential for Premium-intermodal Services to Reduce Freight CO2 Emissions in the Quebec City - Windsor Corridor: A Stated Preference Application November 18, 2006. 53rd Annual North American Meetings of the Regional Science Association International, Toronto, Canada.


@Misc{NAM06,
  author = {Zachary Patterson},
  title = {The potential for Premium-intermodal Services to Reduce Freight CO2 Emissions in the Quebec City - Windsor Corridor: A Stated Preference Application},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/NAM06.pdf}},
  year = {2006},
  note = {Presented at 53rd Annual North American Meetings of the Regional Science Association International, Toronto, Canada}}}

Research projects

2008

A PrototypeTransportation Land-use Model for the Region of Lausanne, Switzerland

Development of a prototype integrated transportation land-use model for the region of Lausanne.
- Jan 07, 2008 - Mar 01, 2009
- Sponsor: Institut du développement territorial (INTER), EPFL
- Principal investigator: Zachary Patterson
- Project managers: Zachary Patterson, Michel Bierlaire
- Collaborator: Zachary Patterson

EPFL courses

Spring 2008

M�thodologies d'aide � la d�cision dans le domaine des transports.
- Level: Master
- Section: Civil Engineering
- Lecturers: Michel Bierlaire, Matteo Salani, Jean-Pierre Leyvraz, Zachary Patterson

Various lectures

2007

Planification des transports - de l�approche traditionnelle vers les mod�les int�gr�s.
- Mod�lisation des syst�mes �nergie et Transports, EPFL, Lausanne, Suisse
- Dec 06, 2007
- Lecturer: Zachary Patterson
La mod�lisation et planification des transports: de l�approche traditionnelle vers les mod�les int�gr�s.
- Cours Environnement G�nie Civil, EPFL, Lausanne, Suisse
- Dec 03, 2007
- Lecturer: Zachary Patterson
La mod�lisation de transport dans la r�gion de la mer d'Aral.
- Cours Environnement G�nie Civil, EPFL, Lausanne, Switzerland
- Jan 15, 2007
- Lecturer: Zachary Patterson

Master theses

2006-2007

Modélisation de Bruxelles avec UrbanSIM, Lefteris Samartzis (Mathematics)
- Supervision: Michel Bierlaire, Zachary Patterson
- External expert: Sylvie Gayda, STRATEC

Semester projects

2008

La modélisation de transport de la région Lausannoise avec PTV Vision, Chen Lu (Communication Systems)

Supervision: Zachary Patterson
La mod�lisation de transport est un aspect fondamental de la planification de transport. Plusieurs diff�rents logiciels existent pour mod�liser la performance des r�seaux de transports urbains. Les logiciels EMME, TransCAD et PTV Vision sont parmi les plus utilis�s au monde pour mod�liser le trafic. Au sein du laboratoire TRANSP-OR existent d�j� des mod�les EMME et TransCAD de Lausanne. Pour faire conna�tre aux �tudiants de l'EPFL les diff�rentes options disponibles pour la mod�lisation de transport, le d�veloppement d'un mod�le PTV Vision de Lausanne est pr�vu. Le but de ce projet est d'utiliser les donn�es existantes pour monter un mod�le PTV Vision de la ville de Lausanne.

Analyse géographique pour l'implémentation d'un prototype de modèle intégré de transport et d'occupation du sol pour la région lausannoise, Bettex Laetitia (Civil Engineering)

Supervision: Zachary Patterson
UrbanSim est un syst�me de mod�lisation transport et occupation du sol qui devient de plus en plus utilis�. Se projet se fera dans le cadre d'un projet plus large pour d�velopper un prototype d'un mod�le int�gr� de transport et d'occupation du sol pour la r�gion lausannoise. Ces mod�les demandes beaucoup de donn�es socio-d�mographiques ainsi que g�ographiques pour la r�gion d'�tude. L'objectif de ce projet est de contribuer au d�veloppement des donn�es pour le tableau `Gridcells' du mod�le en d�veloppement. En particulier le projet aura comme but : l'identification des donn�es manquantes pour ce tableau, l'identification des sources pour les donn�es manquantes, le traitement de ces donn�es et l'incorporation dans le tableau `Gridcells.'

2007-2008

Analyse de données requises pour un modèle intégré de Lausanne, Maret Jonathan (Civil Engineering)

Supervision: Zachary Patterson
Depuis longtemps l'importance de l'interaction entre la forme urbaine, les infrastructures de transports et la demande de transport a �t� reconnu. Par contre ce n'est que r�cemment que des m�thodes analytiques tel que des syst�mes de mod�lisation de transport et d'occupation du sol ont �t� d�velopp�es pour pouvoir mieux comprendre ces interactions. UrbanSim est un syst�me de mod�lisation qui devient de plus en plus utilis�. Ce projet repr�sente une phase pr�paratoire pour le d�veloppement d'un mod�le UrbanSim pour la r�gion lausannoise.

Calibration of on Integrated Transportation Land-use Model - UrbanSim for Brussels, Zemzemi Fatima and Stoitzev Iordanka (Mathematics)

Supervision: Zachary Patterson
Transportation and infrastructure planning requires a good understanding of future transportation demand. Traditionally, transportation demand analysis has focused primarily on the transportation system independent of its relationship with land-use and urban form. Integrated Transportation and Land-use Models (ILUMs) explicitly model these interactions. The TRANSP-OR laboratory currently has an operational land-use model (UrbanSim) for the city of Brussels in Belgium. The purpose of this project is to is to fine-tune UrbanSim for Brussels by improving the location, developer and land-price models. The analysis will take advantage of GIS land-use data for Brussels. The project will include an application of the modeling system to a practical transportation and land-use planning problem. The project will be undertaken in cooperation with Stratec of Brussels.

2007

A Survey of Active Integrated Land-use Models around the World, Vignon Olayitan (Civil Engineering)

Supervision: Zachary Patterson
Traditional travel demand modeling has tended to ignore the important interactions between urban form and transportation demand and the performance of the transportation system. Integrated transportation land-use models (ILUMs) explicitly model these interactions. These models are becoming increasingly popular. Better understanding these models requires a better knowledge of how they are applied in different contexts. The purpose of this project is to undertake research to provide a summary of active ILUM applications around the world.

2006-2007

An Integrated Land Use Model Application to Brussels using UrbanSim, Samartzis Lefteris (Mathematics)

Supervision: Zachary Patterson
The interrelationship between urban form, transportation infrastructure and transportation demand has long been recognized. More recently, analysts have been developing Integrated Transportation and Land-use Models (ILUMs) to better understand and quantify these interrelationships. As a result, several modeling options are now available to develop ILUMs. One such model has already been applied to the city of Brussels in Belgium. UrbanSim is an increasingly popular alternative for integrated land-use modeling. The current study is intended to test the feasibility of applying UrbanSim to a city for which a fair bit of transportation and land-use data already exist, within a medium-term project timeline. The project is being undertaken in collaboration with Stratec in Brussels.

Service

Ongoing

Completed

Member of the Editorial Advisory Board, EspaceTemps.net (Nov 26, 2007 - Aug 31, 2008)

External expert for project evaluation, Swiss National Science Foundation, Switzerland (Nov 07, 2007 - Dec 07, 2007)
Co-managing director, Executive Master in Urban Utilities Management, EPFL (Jun 19, 2007 - Aug 31, 2008)

Matteo Salani

Matteo Salani has been a member of the laboratory from Jun 01, 2006 to Dec 31, 2009

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Matteo Salani.

Journal articles

2014

Atasoy B., Salani M., Bierlaire M. (2014). An integrated airline scheduling, fleeting and pricing model for a monopolized market. Computer-Aided Civil and Infrastructure Engineering 29 (2):76-90


@Article{AtasSalaBier13,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire},
  title = {An integrated airline scheduling, fleeting and pricing model for a monopolized market},
  journal = {Computer-Aided Civil and Infrastructure Engineering},
  year = {2014},
  volume = {29},
  number = {2},
  pages = {76-90},
  DOI = {10.1111/mice.12032},
  note = {Accepted on Apr 13, 2013}}}

2013

Vacca I., Salani M., Bierlaire M. (2013). An exact algorithm for the integrated planning of berth allocation and quay crane assignment. Transportation Science 47 (2):148-161


@Article{VaccSalaBier12,
  author = {Ilaria Vacca and Matteo Salani and Michel Bierlaire},
  title = {An exact algorithm for the integrated planning of berth allocation and quay crane assignment},
  journal = {Transportation Science},
  year = {2013},
  volume = {47},
  number = {2},
  pages = {148-161},
  DOI = {10.1287/trsc.1120.0428},
  note = {Accepted on Mar 17, 2012}}}

2011

Salani M., Vacca I. (2011). Branch and Price for the Vehicle Routing Problem with Discrete Split Deliveries and Time Windows. European Journal of Operational Research 213 (3):470-477

The Discrete Split Delivery Vehicle Routing Problem with Time Windows (DSDVRPTW) consists of designing the optimal set of routes to serve, at least cost, a given set of customers while respecting constraints on vehicles' capacity and customer time windows. Each customer can be visited by more than one vehicle since each customer's demand, discretized in items, can be split in orders, i.e., feasible combinations of items. In this work, we model the DSDVRPTW assuming that all feasible orders are known in advance. Remarkably, service time at customer's location depends on the delivered combination of items, which is a modeling feature rarely found in literature. We present a flow-based mixed integer program for the DSDVRPTW, we reformulate it via Dantzig-Wolfe and we apply column generation. The proposed branch-and-price algorithm largely outperforms a commercial solver, as shown by computational experiments on Solomon-based instances. A comparison in terms of complexity between constant service time vs delivery-dependent service time is presented and potential savings are discussed. (C) 2011 Elsevier B.V. All rights reserved.
```
@Article{SalaVacc11,
  author = {Matteo Salani and Ilaria Vacca},
  title = {Branch and Price for the Vehicle Routing Problem with Discrete Split Deliveries and Time Windows},
  journal = {European Journal of Operational Research},
  year = {2011},
  volume = {213},
  number = {3},
  pages = {470-477},
  DOI = {10.1016/j.ejor.2011.03.023},
  note = {Accepted on Mar 09, 2011}}}
```
Liberatore F., Righini G., Salani M. (2011). A column generation algorithm for the vehicle routing problem with soft time windows. 4OR - A Quarterly Journal of Operations Research 9 (1):49-82

The Vehicle Routing Problem with Time Windows consists of computing a minimum cost set of routes for a fleet of vehicles of limited capacity visiting a given set of customers with known demand, with the additional constraint that each customer must be visited in a specified time window. We consider the case in which time window constraints are relaxed into "soft" constraints, that is penalty terms are added to the solution cost whenever a vehicle serves a customer outside of his time window. We present a branch-and-price algorithm which is the first exact optimization algorithm for this problem
```
@Article{LibeRighSala10,
  author = {Federico Liberatore and G. Righini and Matteo Salani},
  title = {A column generation algorithm for the vehicle routing problem with soft time windows},
  journal = {4OR - A Quarterly Journal of Operations Research},
  year = {2011},
  volume = {9},
  number = {1},
  pages = {49-82},
  DOI = {10.1007/s10288-010-0136-6},
  note = {Accepted on Jun 18, 2010}}}
```
Eggenberg N., Salani M., Bierlaire M. (2011). Uncertainty Feature Optimization: an implicit paradigm for problems with noisy data. Networks 57 (3):270-284

Optimization problems with noisy data solved using stochastic programming or robust optimization approaches require the explicit characterization of an uncertainty set U that models the nature of the noise. Such approaches depend on the modeling of the uncertainty set and suffer from an erroneous estimation of the noise.
```
@Article{EggeSalaBier10,
  author = {Niklaus Eggenberg and Matteo Salani and Michel Bierlaire},
  title = {Uncertainty Feature Optimization: an implicit paradigm for problems with noisy data},
  journal = {Networks},
  year = {2011},
  volume = {57},
  number = {3},
  pages = {270-284},
  DOI = {10.1002/net.20428},
  note = {Accepted on Jun 16, 2010}}}
```

2010

Salani M., Duyckaerts G., Swartz P. (2010). Ambush avoidance in Vehicle Routing for valuable delivery. Journal of Transportation Security 3 (1):41-55


@Article{SalaDuykSwart2010,
  author = {Matteo Salani and Gaetan Duyckaerts and Peter Swartz},
  title = {Ambush avoidance in Vehicle Routing for valuable delivery},
  journal = {Journal of Transportation Security},
  year = {2010},
  volume = {3},
  number = {1},
  pages = {41-55},
  DOI = {10.1007/s12198-010-0037-0},
  note = {Accepted on Jan 12, 2010}}}

Eggenberg N., Salani M., Bierlaire M. (2010). Constraint-specific recovery networks for solving airline recovery problems. Computers & Operations Research 37 (6):1014-1026

In this paper, we consider the recovery of an airline schedule after an unforeseen event called disruption, making the planned schedule infeasible. We present a modeling framework that allows the consideration of operational constraints within a Column Generation (CG) scheme. We introduce the general concept of recovery network, generated for each individual unit of the problem, and show how unit-specific constraints are modeled using resources. We fully illustrate the concept by solving the Aircraft Recovery Problem (ARP) with maintenance planning, we give some insights into applying the model to the Passenger Recovery Problem (PRP) and we present computational results on real data. (C) 2009 Elsevier Ltd. All rights reserved.
```
@Article{EggeSalaBier09,
  author = {Niklaus Eggenberg and Matteo Salani and Michel Bierlaire},
  title = {Constraint-specific recovery networks for solving airline recovery problems},
  journal = {Computers \& Operations Research},
  year = {2010},
  volume = {37},
  number = {6},
  pages = {1014-1026},
  DOI = {10.1016/j.cor.2009.08.006 },
  note = {Accepted on Aug 31, 2009}}}
```
Giallombardo G., Moccia L., Salani M., Vacca I. (2010). Modeling and Solving the Tactical Berth Allocation Problem. Transportation Research Part B: Methodological 44 (2):232-245

In this paper we integrate at the tactical level two decision problems arising in container terminals: the berth allocation problem, which consists of assigning and scheduling incoming ships to berthing positions, and the quay crane assignment problem, which assigns to incoming ships a certain quay crane profile (i.e. number of quay cranes per working shift). We present two formulations: a mixed integer quadratic program and a linearization which reduces to a mixed integer linear program. The objective function aims, on the one hand, to maximize the total value of chosen quay crane profiles and, oil the other hand, to minimize the housekeeping costs generated by transshipment flows between ships. To Solve the problem we developed a heuristic algorithm which combines tabu search methods and mathematical programming techniques. Computational results on instances based on real data are presented and compared to those obtained through a commercial solver. (C) 2009 Elsevier Ltd. All rights reserved.
```
@Article{GialMoccSalaVacc09,
  author = {Giovanni Giallombardo and Luigi Moccia and Matteo Salani and Ilaria Vacca},
  title = {Modeling and Solving the Tactical Berth Allocation Problem},
  journal = {Transportation Research Part B: Methodological},
  year = {2010},
  volume = {44},
  number = {2},
  pages = {232-245},
  DOI = {10.1016/j.trb.2009.07.003},
  note = {Accepted on Jul 15, 2009}}}
```

2009

Ceselli A., Righini G., Salani M. (2009). A column generation algorithm for a vehicle routing problem with economies of scale and additional constraints. Transportation Science 43 (1):56-69

We present an optimization algorithm developed for a provider of software planning tools for distribution logistics companies. The algorithm computes a daily plan for a heterogeneous fleet of vehicles, that can depart from different depots and must visit a set of customers for delivery operations. Besides multiple capacities and time windows associated with depots and customers, the problem also considers incompatibility constraints between goods, depots, vehicles and customers, maximum route length and durations, upper limits on the number of consecutive driving hours and compulsory drivers' rest periods, the possibility to skip some customers and to use express courier services instead of the given fleet to fulfill some orders, the option of splitting up the orders, and the possibility of open routes that do not terminate at the depots. Moreover, the cost of each vehicle route is computed through a system of fares, depending on the locations visited by the vehicle, the distance traveled, the vehicle load and the number of stops along the route. We developed a column generation algorithm, where the pricing problem is a particular resource constrained elementary shortest path problem, solved through a bounded bi-directional dynamic programming algorithm. We describe how to encode the cost function and the complicating constraints by an appropriate use of resources and we present computational results on real instances obtained from the software company.
```
@Article{CeseRighSala08,
  author = {Alberto Ceselli and G. Righini and Matteo Salani},
  title = {A column generation algorithm for a vehicle routing problem with economies of scale and additional constraints},
  journal = {Transportation Science},
  year = {2009},
  volume = {43},
  number = {1},
  pages = {56-69},
  DOI = {10.1287/trsc.1080.0256},
  note = {Accepted on Nov 18, 2008}}}
```

Bierlaire M., Salani M. (2009). Selected papers from the Triennial symposium on transportation analysis (TRISTAN), Phuket, Thailand, June 11�15, 2007, Special Issue of Transportation Research Part C . Transportation Research Part C: Emerging Technologies 17 (2):105


@Article{BierSala09,
  author = {Michel Bierlaire and Matteo Salani},
  title = {Selected papers from the Triennial symposium on transportation  analysis (TRISTAN), Phuket, Thailand, June 11{\textendash}15, 2007, Special Issue of Transportation Research Part C },
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2009},
  volume = {17},
  number = {2},
  pages = {105},
  DOI = {10.1016/j.trc.2008.12.001 },
  note = {Accepted on Oct 28, 2008}}}

Righini G., Salani M. (2009). Decremental state space relaxation strategies and initialization heuristics for solving the orienteering problem with time windows with dynamic programming. Computers & Operations Research 36 (4):1191-1203

We present an exact optimization algorithm for the Orienteering Problem with Time Windows (OPTW). The algorithm is based on bi-directional and bounded dynamic programming with decremental state space relaxation. We compare different strategies proposed in the literature to guide decremental state space relaxation: our experiments on instances derived from the literature show that there is no dominance between these strategies. We also propose a new heuristic technique to initialize the critical vertex set and we provide experimental evidence of its effectiveness
```
@Article{RighiSala08,
  author = {G. Righini and Matteo Salani},
  title = {Decremental state space relaxation strategies and initialization heuristics for solving the orienteering problem with time windows with dynamic programming},
  journal = {Computers \& Operations Research},
  year = {2009},
  volume = {36},
  number = {4},
  pages = {1191-1203},
  DOI = {10.1016/j.cor.2008.01.003},
  note = {Accepted on Jan 14, 2008}}}
```

2008

Righini G., Salani M. (2008). New dynamic programming algorithms for the resource constrained shortest path problem.. Networks 51 (3):155-170

The resource constrained elementary shortest path problem (RCESPP) arises as a pricing subproblem in branch-and-price algorithms for vehicle-routing problems with additional constraints. We address the optimization of the RCESPP and we present and compare three methods. The first method is a well-known exact dynamic-programming algorithm improved by new ideas, such as bidirectional search with resource-based bounding. The second method consists in a branch-and-bound algorithm, where lower bounds are computed by dynamic-programming with state-space relaxation; we show how bounded bidirectional search can be adapted to state-space relaxation and we present different branching strategies and their hybridization. The third method, called decremental state-space relaxation, is a new one; exact dynamic-programming and state-space relaxation are two special cases of this new method. The experimental comparison of the three methods is definitely favorable to decrement state-space relaxation. Computational results are given for different kinds of resources, arising from the capacitated vehicle-routing problem, the vehicle-routing problem with distribution and collection, and the vehicle-routing problem with capacities and time windows.
```
@Article{RighSala07,
  author = {G. Righini and Matteo Salani},
  title = {New dynamic programming algorithms for the resource constrained shortest path problem.},
  journal = {Networks},
  year = {2008},
  volume = {51},
  number = {3},
  pages = {155-170},
  DOI = {10.1002/net.20212},
  note = {Accepted on May 05, 2007}}}
```

2006

Righini G., Salani M. (2006). Symmetry helps: Bounded bi-directional dynamic programming for the elementary shortest path problem with resource constraints. Discrete Optimization 3 (3):255-273

When vehicle routing problems with additional constraints, such as capacity or time windows, are solved via column generation and branch-and-price, it is common that the pricing subproblem requires the computation of a minimum cost constrained path on a graph with costs on the arcs and prizes on the vertices. A common solution technique for this problem is dynamic programming. In this paper we illustrate how the basic dynamic programming algorithm can be improved by bounded bi-directional search and we experimentally evaluate the effectiveness of the enhancement proposed. We consider as benchmark problems the elementary shortest path problems arising as pricing subproblems in branch-and-price algorithms for the capacitated vehicle routing problem, the vehicle routing problem with distribution and collection and the capacitated vehicle routing problem with time windows.
```
@Article{RighSala06,
  author = {G. Righini and Matteo Salani},
  title = {Symmetry helps: Bounded bi-directional dynamic programming for the elementary shortest path problem with resource constraints},
  journal = {Discrete Optimization},
  year = {2006},
  volume = {3},
  number = {3},
  pages = {255-273},
  DOI = {10.1016/j.disopt.2006.05.007}}}
```
Dell'Amico M., Righini G., Salani M. (2006). A Branch-and-Price Approach to the Vehicle Routing Problem with Simultaneous Distribution and Collection. Transportation Science 40 (2):235-247

The vehicle routing problem with simultaneous distribution and collection (VRPSDC) is the variation of the capacitated vehicle routing problem that arises when the distribution of goods from a depot to a set of customers and the collection of waste from the customers to the depot must be performed by the same vehicles of limited capacity and the customers can be visited in any order. We study how the branch-and-price technique can be applied to the solution of this problem and in particular we compare two different ways of solving the pricing subproblem: exact dynamic programming and state space relaxation. By applying a bidirectional search we experimentally prove its effectiveness in solving the subproblem. We also devise suitable branching strategies for both the exact and the relaxed approach and we report on an extensive set of computational experiments on benchmark instances with both simple and composite demands.
```
@Article{DellRighSala06,
  author = {M. Dell'Amico and G. Righini and Matteo Salani},
  title = {A Branch-and-Price Approach to the Vehicle Routing Problem with Simultaneous Distribution and Collection},
  journal = {Transportation Science},
  year = {2006},
  volume = {40},
  number = {2},
  pages = {235-247},
  DOI = {10.1287/trsc.1050.0118}}}
```

2004

Righini G., Salani M. (2004). Dynamic programming algorithms for the elementary shortest path problem with resource constraints. Electronic Notes in Discrete Mathematics 17 :247 - 249


@Article{RighSala04,
  author = {G. Righini and Matteo Salani},
  title = {Dynamic programming algorithms for the elementary shortest path problem with resource constraints},
  journal = {Electronic Notes in Discrete Mathematics},
  year = {2004},
  volume = {17},
  pages = {247 - 249},
  DOI = {10.1016/j.endm.2004.03.047}}}

Book chapters

2012

Atasoy B., Salani M., Bierlaire M. (2012) Integrated schedule planning with supply-demand interactions for a new generation of aircrafts. In D. Klatte et al. (ed) Operations Research Proceedings 2011, Springer


@InProceedings{AtasSalaBier12,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire},
  title = {Integrated schedule planning with supply-demand interactions for a new generation of aircrafts},
  year = {2012},
  booktile = {Operations Research Proceedings 2011},
  editor = {D. Klatte et al. },
  publisher = {Springer},
  pages = {495-500}}}

2009

Liberatore F., Righini G., Salani M. (2009) A pricing algorithm for the vehicle routing problem with soft time windows. In L. Bertazzi, M.G. Speranza, J. Nunen (ed) Innovations in Distribution Logistics, Springer [ISBN 978-3-540-92943-7]


@InProceedings{LibeRighSala09,
  author = {Federico Liberatore and G. Righini and Matteo Salani},
  title = {A pricing algorithm for the vehicle routing problem with soft time windows},
  year = {2009},
  booktile = {Innovations in Distribution Logistics},
  editor = {L. Bertazzi and  M.G. Speranza and  J. Nunen},
  volume = {619},
  series = {LNEMS},
  publisher = {Springer},
  pages = {251-266}}}

2008

Ceselli A., Colombo A., Righini G., Salani M. (2008) Ottimizzazione nella distribuzione di merci. In G. Felici, A. Sciomachen (ed) Scienza delle Decisioni in Italia: Applicazioni della Ricerca Operativa a Problemi Aziendali, ECIG [ISBN 9788875441500]


@InProceedings{CeseColoRighSala08,
  author = {Alberto Ceselli and A. Colombo and G. Righini and Matteo Salani},
  title = {Ottimizzazione nella distribuzione di merci},
  year = {2008},
  booktile = {Scienza delle Decisioni in Italia: Applicazioni della Ricerca Operativa a Problemi Aziendali},
  editor = {G. Felici and  A. Sciomachen},
  publisher = {ECIG},
  pages = {309-319}}}

2005

Loiseau I., Maculan N., Ceselli A., Salani M. (2005) Génération de colonnes en programmation linéaire en nombres entiers. In Paschos, V. Th. (ed) Optimisation combinatoire 1 : concepts fondamentaux, Hermes Science publications - Lavoisier [ISBN 978-2746210387]


@InProceedings{LoisMacuCeseSala05,
  author = {Ir\`ene Loiseau and Nelson Maculan and Alberto Ceselli and Matteo Salani},
  title = {G\'en\'eration de colonnes en programmation lin\'eaire en nombres entiers},
  year = {2005},
  booktile = { Optimisation combinatoire 1 : concepts fondamentaux},
  editor = {Paschos and  V. Th.},
  series = {S\'erie Informatique et Syst\`emes d'Information},
  publisher = {Hermes Science publications - Lavoisier},
  pages = {237-262}}}

Technical reports

2011

Atasoy B., Salani M., Leonardi C., Bierlaire M. (2011). Clip-Air, a flexible air transportation system. Report TRANSP-OR 110929


@TechReport{AtaSalLeoBier_2011,
  author = {Bilge Atasoy and Matteo Salani and Claudio Leonardi and Michel Bierlaire},
  title = {Clip-Air, a flexible air transportation system},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2011},
  type = {Technical Report},
  number = {TRANSP-OR 110929},
  address = {Lausanne, Switzerland}}}

Vacca I., Salani M., Bierlaire M. (2011). An exact algorithm for the integrated planning of berth allocation and quay crane assignment. Report TRANSP-OR 110323


@TechReport{VaccSalaBier2011,
  author = {Ilaria Vacca and Matteo Salani and Michel Bierlaire},
  title = {An exact algorithm for the integrated planning of berth allocation and quay crane assignment},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2011},
  type = {Technical Report},
  number = {TRANSP-OR 110323},
  address = {Lausanne, Switzerland}}}

2010

Salani M., Vacca I., Bierlaire M. (2010). Two-stage column generation. Report TRANSP-OR 101130


@TechReport{SalaVaccBier2010,
  author = {Matteo Salani and Ilaria Vacca and Michel Bierlaire},
  title = {Two-stage column generation},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2010},
  type = {Technical Report},
  number = {TRANSP-OR 101130},
  address = {Lausanne, Switzerland}}}

Eggenberg N., Salani M., Bierlaire M. (2010). Robust and Recoverable Maintenance Routing Schedules. Report TRANSP-OR 100115


@TechReport{NEMSMB_2010,
  author = {Niklaus Eggenberg and Matteo Salani and Michel Bierlaire},
  title = {Robust and Recoverable Maintenance Routing Schedules},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2010},
  type = {Technical Report},
  number = {TRANSP-OR 100115},
  address = {Lausanne, Switzerland}}}

2009

Salani M., Vacca I. (2009). Branch and Price for the Vehicle Routing Problem with Discrete Split Deliveries and Time Windows. Report TRANSP-OR 091224


@TechReport{SalaniVacca09,
  author = {Matteo Salani and Ilaria Vacca},
  title = {Branch and Price for the Vehicle Routing Problem with Discrete Split Deliveries and Time Windows},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2009},
  type = {Technical Report},
  number = {TRANSP-OR 091224},
  address = {Lausanne, Switzerland}}}

Swartz P., Duyckaerts G., Salani M. (2009). Ambush avoidance in Vehicle Routing for valuable delivery. Report TRANSP-OR 091216


@TechReport{GoSwDuycSala09,
  author = {Peter Swartz and Gaetan Duyckaerts and Matteo Salani},
  title = {Ambush avoidance in Vehicle Routing for valuable delivery},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2009},
  type = {Technical Report},
  number = {TRANSP-OR 091216},
  address = {Lausanne, Switzerland}}}

Giallombardo G., Moccia L., Salani M., Vacca I. (2009). Modeling and Solving the Tactical Berth Allocation Problem. Report TRANSP-OR 090312


@TechReport{GialMoccSalaVacc09,
  author = {Giovanni Giallombardo and Luigi Moccia and Matteo Salani and Ilaria Vacca},
  title = {Modeling and Solving the Tactical Berth Allocation Problem},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2009},
  type = {Technical Report},
  number = {TRANSP-OR 090312},
  address = {Lausanne, Switzerland}}}

Eggenberg N., Salani M. (2009). Uncertainty Feature Optimization for the Airline Scheduling Problem. Report TRANSP-OR 090105


@TechReport{EggeSala09,
  author = {Niklaus Eggenberg and Matteo Salani},
  title = {Uncertainty Feature Optimization for the Airline Scheduling Problem},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2009},
  type = {Technical Report},
  number = {TRANSP-OR 090105},
  address = {Lausanne, Switzerland}}}

Eggenberg N., Salani M., Bierlaire M. (2009). Constraint-Specific Recovery Networks for Solving Airline Recovery Problems. Report TRANSP-OR 081001


@TechReport{EggeSalaBier08_ARP,
  author = {Niklaus Eggenberg and Matteo Salani and Michel Bierlaire},
  title = {Constraint-Specific Recovery Networks for Solving Airline Recovery Problems},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2009},
  type = {Technical Report},
  number = {TRANSP-OR 081001},
  address = {Lausanne, Switzerland}}}

Eggenberg N., Salani M., Bierlaire M. (2009). UFO: Uncertainty Feature Optimization, an Implicit Paradigm for Problems with Noisy Data. Report TRANSP-OR 080829


@TechReport{EggeSalaBier08_UFO,
  author = {Niklaus Eggenberg and Matteo Salani and Michel Bierlaire},
  title = {UFO: Uncertainty Feature Optimization, an Implicit Paradigm for Problems with Noisy Data},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2009},
  type = {Technical Report},
  number = {TRANSP-OR 080829},
  address = {Lausanne, Switzerland}}}

2008

Salani M., Vacca I. (2008). Two-stage column generation and applications. Report TRANSP-OR 081002


@TechReport{SalaniVacca08,
  author = {Matteo Salani and Ilaria Vacca},
  title = {Two-stage column generation and applications},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2008},
  type = {Technical Report},
  number = {TRANSP-OR 081002},
  address = {Lausanne, Switzerland}}}

Vacca I., Bierlaire M., Salani M. (2008). Optimization at Container Terminals: Status, Trends and Perspectives (revised version). Report TRANSP-OR 080528


@TechReport{VaccBierSala2007rev,
  author = {Ilaria Vacca and Michel Bierlaire and Matteo Salani},
  title = {Optimization at Container Terminals: Status, Trends and Perspectives (revised version)},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2008},
  type = {Technical Report},
  number = {TRANSP-OR 080528},
  address = {Lausanne, Switzerland}}}

2007

Vacca I., Bierlaire M., Salani M. (2007). Optimization at Container Terminals: Status, Trends and Perspectives. Report TRANSP-OR 071204


@TechReport{VaccBierSala07,
  author = {Ilaria Vacca and Michel Bierlaire and Matteo Salani},
  title = {Optimization at Container Terminals: Status, Trends and Perspectives},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2007},
  type = {Technical Report},
  number = {TRANSP-OR 071204},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2011

Atasoy B., Salani M., Bierlaire M. (2011) Integrated schedule planning with supply-demand interactions for a new generation of aircrafts. Proceedings of the International Conference on Operations Research (OR), August 30 - September 2, Zurich, Switzerland


@InProceedings{Atasoy_OR2011,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire},
  title = {Integrated schedule planning with supply-demand interactions for a new generation of aircrafts},
  booktime = {Proceedings of the International Conference on Operations Research (OR), August 30 - September 2},
  year = {2011},
  address = {Zurich, Switzerland}}}

Atasoy B., Salani M., Bierlaire M. (2011) Integrated schedule planning with supply-demand interactions. Proceedings of the 11th Swiss Transport Research Conference (STRC), May 11-13, Ascona, Switzerland


@InProceedings{Atasoy_STRC2011,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire},
  title = {Integrated schedule planning with supply-demand interactions},
  booktime = {Proceedings of the 11th Swiss Transport Research Conference (STRC), May 11-13},
  year = {2011},
  address = {Ascona, Switzerland}}}

2010

Vacca I., Salani M., Bierlaire M. (2010) Optimization of operations in container terminals: hierarchical vs integrated approaches. Proceedings of the 10th Swiss Transport Research Conference (STRC), September 1-3, Ascona, Switzerland


@InProceedings{VaccSalaBier10_STRC,
  author = {Ilaria Vacca and Matteo Salani and Michel Bierlaire},
  title = {Optimization of operations in container terminals: hierarchical vs integrated approaches},
  booktime = {Proceedings of the 10th Swiss Transport Research Conference (STRC), September 1-3},
  year = {2010},
  address = {Ascona, Switzerland}}}

2009

Giallombardo G., Moccia L., Salani M., Vacca I. (2009) Models and Heuristics for the Tactical Berth Allocation Problem with Quay-Crane Assignment and Transshipment Costs. Proceedings of the European Transport Conference (ETC), October 5-7, Leeuwenhorst conference centre, The Netherlands


@InProceedings{GialMoccSalaVacc09_ETC,
  author = {Giovanni Giallombardo and Luigi Moccia and Matteo Salani and Ilaria Vacca},
  title = {Models and Heuristics for the Tactical Berth Allocation Problem with Quay-Crane Assignment and Transshipment Costs},
  booktime = {Proceedings of the European Transport Conference (ETC), October 5-7},
  year = {2009},
  address = {Leeuwenhorst conference centre, The Netherlands}}}

Vacca I., Salani M. (2009) The Vehicle Routing Problem with Discrete Split Delivery and Time Windows. Proceedings of the 9th Swiss Transport Research Conference (STRC), September 9-11, Ascona, Switzerland


@InProceedings{VaccSala09_STRC,
  author = {Ilaria Vacca and Matteo Salani},
  title = {The Vehicle Routing Problem with Discrete Split Delivery and Time Windows},
  booktime = {Proceedings of the 9th Swiss Transport Research Conference (STRC), September 9-11},
  year = {2009},
  address = {Ascona, Switzerland}}}

2008

Giallombardo G., Moccia L., Salani M., Vacca I. (2008) The Tactical Berth Allocation Problem (TBAP) with quay crane assignment and transshipment-related quadratic yard costs. Proceedings of the European Transport Conference (ETC), October 6-8, Leeuwenhorst conference centre, The Netherlands


@InProceedings{GialMoccSalaVacc08_ETC,
  author = {Giovanni Giallombardo and Luigi Moccia and Matteo Salani and Ilaria Vacca},
  title = {The Tactical Berth Allocation Problem (TBAP) with quay crane assignment and transshipment-related quadratic yard costs},
  booktime = {Proceedings of the European Transport Conference (ETC), October 6-8},
  year = {2008},
  address = {Leeuwenhorst conference centre, The Netherlands}}}

Eggenberg N., Salani M., Bierlaire M. (2008) Optimization of Uncertainty Features for Transportation Problems. Proceedings of the Swiss Transportation Research Conference (STRC), October 15-17, Monte Verit�, Ascona, Switzerland


@InProceedings{EggSalBier_STRC08,
  author = {Niklaus Eggenberg and Matteo Salani and Michel Bierlaire},
  title = {Optimization of Uncertainty Features for Transportation Problems},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), October 15-17},
  year = {2008},
  address = {Monte Verit\`a, Ascona, Switzerland}}}

Vacca I., Salani M., Bierlaire M. (2008) Two-stage column generation and applications in container terminal management. Proceedings of the 8th Swiss Transport Research Conference (STRC), October 15-17, Ascona, Switzerland


@InProceedings{VaccSalaBier08_STRC,
  author = {Ilaria Vacca and Matteo Salani and Michel Bierlaire},
  title = {Two-stage column generation and applications in container terminal management},
  booktime = {Proceedings of the 8th Swiss Transport Research Conference (STRC), October 15-17},
  year = {2008},
  address = {Ascona, Switzerland}}}

2007

Cordone R., Milesi M., Salani M. (2007) A decision support tool to plan shifts in a home for the aged. Proceedings of the International Conference on Service Operations and Logistics, and Informatics (SOLI), August 27-29, Philadelphia, USA


@InProceedings{CordMileSala07,
  author = {Roberto Cordone and Michele Milesi and Matteo Salani},
  title = {A decision support tool to plan shifts in a home for the aged},
  booktime = {Proceedings of the International Conference on Service Operations and Logistics, and Informatics (SOLI), August 27-29},
  year = {2007},
  address = {Philadelphia, USA}}}

Eggenberg N., Salani M., Bierlaire M. (2007) Robust Optimization with Recovery: Application to Shortest Paths and Airline Scheduling. Proceedings of the Swiss Transport Research Conference (STRC), September 12-14, Monte Verit�, Switzerland


@InProceedings{NEg_STRC_2007,
  author = {Niklaus Eggenberg and Matteo Salani and Michel Bierlaire},
  title = {Robust Optimization with Recovery: Application to Shortest Paths and Airline Scheduling},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), September 12-14},
  year = {2007},
  address = {Monte Verit\`a, Switzerland}}}

Vacca I., Bierlaire M., Salani M. (2007) Optimization at Container Terminals: Status, Trends and Perspectives. Proceedings of the Swiss Transport Research Conference (STRC), September 12-14, Ascona, Switzerland


@InProceedings{VaccBierSala07,
  author = {Ilaria Vacca and Michel Bierlaire and Matteo Salani},
  title = {Optimization at Container Terminals: Status, Trends and Perspectives},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), September 12-14},
  year = {2007},
  address = {Ascona, Switzerland}}}

Bierlaire M., Eggenberg N., Salani M. (2007) Column generation methods for disrupted airline schedules. Proceedings of the Proceedings of the Sixth Triennial Symposium on Transportation Analysis (TRISTAN), June 10-15, Phuket, Thailand


@InProceedings{BierEggeSala07,
  author = {Michel Bierlaire and Niklaus Eggenberg and Matteo Salani},
  title = {Column generation methods for disrupted airline schedules},
  booktime = {Proceedings of the Proceedings of the Sixth Triennial Symposium on Transportation Analysis (TRISTAN), June 10-15},
  year = {2007},
  address = {Phuket, Thailand}}}

Ceselli A., Righini G., Salani M. (2007) Column generation for a real world vehicle routing problem. Proceedings of the Sixth Triennial Symposium on Transportation Analysis (TRISTAN), June 10-15, Phuket, Thailand


@InProceedings{CeseRighSala07,
  author = {Alberto Ceselli and G. Righini and Matteo Salani},
  title = {Column generation for a real world vehicle routing problem},
  booktime = {Proceedings of the Sixth Triennial Symposium on Transportation Analysis (TRISTAN), June 10-15},
  year = {2007},
  address = {Phuket, Thailand}}}

Talks

2009

Salani M., Swartz P., Duyckaerts G. Ambush avoidance in Vehicle Routing September 08, 2009. AIRO 2009, Siena.


@Misc{SALA_AIRO2009,
  author = {Matteo Salani and Peter Swartz and Gaetan Duyckaerts},
  title = {Ambush avoidance in Vehicle Routing},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/SALA_AIRO2009.pdf}},
  year = {2009},
  note = {Presented at AIRO 2009, Siena}}}

Swartz P., Duyckaerts G., Salani M. Ambush avoidance in Vehicle Routing September 04, 2009. IBM OR Days, Lugano.


@Misc{SALA_IBM2009,
  author = {Peter Swartz and Gaetan Duyckaerts and Matteo Salani},
  title = {Ambush avoidance in Vehicle Routing},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/SALA_IBM2009.pdf}},
  year = {2009},
  note = {Presented at IBM OR Days, Lugano}}}

Salani M., De Tenorio A. ClipAir: a modular air transportation system July 10, 2009. Seminar at Amadeus, Sophia-Antipolis, France.


@Misc{SALA_AMADEUS09,
  author = {Matteo Salani and Alexandre {De Tenorio}},
  title = {ClipAir: a modular air transportation system},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/SALA_AMADEUS09.pdf}},
  year = {2009},
  note = {Presented at Seminar at Amadeus, Sophia-Antipolis, France}}}

Eggenberg N., Salani M. Robust scheduling and disruption recovery for airlines July 03, 2009. Seminar at IDSIA, , Lugano.


@Misc{EGGESALA_IDSIA09,
  author = {Niklaus Eggenberg and Matteo Salani},
  title = {Robust scheduling and disruption recovery for airlines},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/EGGESALA_IDSIA09.pdf}},
  year = {2009},
  note = {Presented at Seminar at IDSIA, , Lugano}}}

Eggenberg N., Salani M. Airline disruption recovery and robustness February 11, 2009. ROADEF, Nancy, France.


@Misc{EGGESALA_ROADEF09,
  author = {Niklaus Eggenberg and Matteo Salani},
  title = {Airline disruption recovery and robustness},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/EGGESALA_ROADEF09.pdf}},
  year = {2009},
  note = {Presented at ROADEF, Nancy, France}}}

2008

Salani M., Vacca I., Vandaele A. Measures of congestions in container terminals September 10, 2008. AIRO 2008, Ischia, Italy.


@Misc{SVV_AIRO08,
  author = {Matteo Salani and Ilaria Vacca and Arnaud Vandaele},
  title = {Measures of congestions in container terminals},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/SVV_AIRO08.pdf}},
  year = {2008},
  note = {Presented at AIRO 2008, Ischia, Italy}}}

Salani M., Vacca I. Two-stage column generation May 15, 2008. 7th Cologne-Twente Workshop on Graphs and Combinatorial Optimization (CTW08), Università degli Studi di Milano, Gargnano, Italy.


@Misc{CTW08_MS,
  author = {Matteo Salani and Ilaria Vacca},
  title = {Two-stage column generation},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/CTW08_MS.pdf}},
  year = {2008},
  note = {Presented at 7th Cologne-Twente Workshop on Graphs and Combinatorial Optimization (CTW08), Universit\à degli Studi di Milano, Gargnano, Italy}}}

Awards

2010

Ilaria Vacca, Matteo Salani. Ranked 16th in the TOP 25 hottest articles of Transportation Research Part B for January-March 2010, Transportation Research Part B: Methodological.
Giallombardo, G., Moccia, L., Salani, M., and Vacca, I. (2010). Modeling and Solving the Tactical Berth Allocation Problem, Transportation Research Part B: Methodological 44(2):232-245. doi:10.1016/j.trb.2009.07.003.

2006

Matteo Salani. Ranked fourth in the TOP 25 hottest articles of Discrete Optimization for July-September 2006, Discrete Optimization. with G. Righini.
Righini, G., and Salani, M. (2006). Symmetry helps: Bounded bi-directional dynamic programming for the elementary shortest path problem with resource constraints, Discrete Optimization 3(3):255-273..

Reviewing

Research projects

2008

Simulation-based optimization of a railroad yard

Simulation-based optimization of the operations of Vale's railroad yards.
- Jul 01, 2008 - Feb 28, 2009
- Sponsor: Vale
- Principal investigator: Michel Bierlaire
- Project managers: Matteo Salani, Anne Curchod

2006

Schedule disruption recovery for airlines

Development of a software product dedicated to airlines and providing solutions to recover from schedule disruptions with minimum cost.
- Jun 01, 2006 - May 31, 2008
- Sponsor: Commission pour la technologie et de l'innovation, Office Fédéral de la formation professionnelle et de la technologie.
- Principal investigator: Michel Bierlaire
- Project manager: Matteo Salani
- Collaborator: Niklaus Eggenberg

EPFL courses

Spring 2009

M�thodologies d'aide � la d�cision dans le domaine des transports.
- Level: Master
- Section: Civil Engineering
- Lecturers: Michel Bierlaire, Matteo Salani, Jean-Pierre Leyvraz, Gunnar Fl�tter�d
- Webpage: http://moodle.epfl.ch/course/view.php?id=2361

Spring 2008

Mathematical models and algorithms for decision-making support.
- Level: Master
- Sections: Mathematics, Mechanical Engineering
- Lecturers: Michel Bierlaire, Matteo Salani
- Webpage: NULL
M�thodologies d'aide � la d�cision dans le domaine des transports.
- Level: Master
- Section: Civil Engineering
- Lecturers: Michel Bierlaire, Matteo Salani, Jean-Pierre Leyvraz, Zachary Patterson

Spring 2007

Recherche op�rationnelle.
- Level: Bachelor
- Sections: Civil Engineering, Environmental Sciences and Engineering
- Lecturer: Michel Bierlaire
- Teaching assistant: Matteo Salani

Various lectures

2009

Airline scheduling optimization.
- TransportNET course on Transport Systems, EPFL, Lausanne, Switzerland
- Mar 02, 2009
- Lecturer: Matteo Salani

PhD supervision

Bilge Atasoy, Integrated supply-demand models for the optimization of flexible transportation systems.
Ilaria Vacca, Container terminal management: integrated models and large-scale optimization algorithms.

Master theses

2009

Comparative Study of CLIP-AIR's Multimodal Performance, Alexandre de Tenorio (Communication Systems)
- Supervision: Michel Bierlaire, Matteo Salani, Claudio Leonardi
- External expert: François Bouteiller, Baboo
Simulation and optimization in container terminals, Atoosa Kasirzadeh (None)
- Supervision: Michel Bierlaire, Matteo Salani, Ilaria Vacca
- External expert: -

2008

Measures of congestion in container terminals, Arnaud Vandaele (None)
- Supervision: Michel Bierlaire, Matteo Salani, Ilaria Vacca
- External expert:

Semester projects

2011-2012

Multi-modal transportation modeling for a new generation of aircraft: Clip-Air, Jonathan Blaiberg (Civil Engineering)

Supervision: Bilge Atasoy, Matteo Salani
Clip-Air is an innovative air transportation system based on modularity. By design, loading units (capsules) can be detached from the carrying unit (wing) which has several advantages in terms of fleeting operations. To quantify these advantages an integrated schedule design and fleet assignment model is developed for both standard planes and Clip-Air. The comparative analysis has shown that there is a potential increase in the transportation capacity thanks to modularity of Clip-Air. As a further investigation, the performance of Clip-Air is needed to be analyzed from a network perspective. Repositioning of Clip-Air capsules by other means of transport, specifically railways, will give this multi-modal network viewpoint. The repositioning is believed to increase the profit especially in case of unbalanced demand between airport pairs. Furthermore, since Clip-Air capsules are completely detached from the wing, the storage and transfer costs are expected to be reduced. The aim of this project is to develop an appropriate model for the repositioning of Clip-Air capsules and obtain an integrated fleeting model. The tasks of this semester project are the following: 1. Get familiar with the concept of fleet assignment and already developed models. 2. Make a literature search on empty container management models. 3. Develop an appropriate model for the repositioning of capsules to be integrated into the existing fleet assignment model. Repositioning model will determine the flow of empty capsules throughout the network considering the carrying costs of capsules by rail and storage cost of capsules at airports. 4. Obtain preliminary results for a few data instances. 5. Evaluate the effect of repositioning.

2010-2011

Integrating demand functions inside optimization model, Nancy Moret (Mathematics)

Supervision: Bilge Atasoy, Matteo Salani
For the new air-transportation system CLIP-AIR we want to have a fleeting model which includes a demand model. The project requires 1. understanding of the concept, 2. implementing the model in a general purpose math language, 3. using a solver for the nonlinear mixed integer problem, 4. performing preliminary tests with given instances.

2009-2010

Game theory applied to ambush avoidance, Peter Goodings Swartz (Civil Engineering)

Supervision: Matteo Salani
This project continues along the stream of the previous project "Minimizing risk of ambush for vehicle routes". The goal of the project is to apply game theory to determine the optimal mixed strategy to select as set of vehicle routes. Each route comes along with the expected maximal payoff when the route is implemented. A strategy to determine the game matrix is to be conceived.

2009

Minimizing risk of ambush for vehicle routes, Gaëtan Duyckaerts, Peter Goodings Swartz (Civil Engineering)

Supervision: Matteo Salani
Vehicle routing problems are known problems in which a fleet of vehicles is routed through a network to collect (or deliver) items from customers. The objective of routing problems in an hostile environment is to prevent ambushes (for valuables deliveries). The goal of routing under potential attacks is to design safe routes in order to minimize the risk of being exposed to dangers. This project is designed to investigate and implement innovative routing strategies.

2008-2009

Minimizing risk of vehicle routes in valuables collection from banks, Fabrice Piat (Civil Engineering)

Supervision: Matteo Salani
Vehicle routing problems are well known combinatorial problems in which a fleet of vehicles is routed through a network to collect (or deliver) items from customers. The objective of routing problems is to minimize operational costs in terms of distance traveled such that all customers are visited and all operational constraints are respected. In the context of logistic services delivered to credit institutes, e.g. the collection of valuables or distribution of coins, the total distance traveled is no more the primary objective to optimize. For logistic companies is more convenient to design {\em safe} routes in order to minimize the risk of being robbed. Beside risk minimization, logistic companies commit to provide a certain level of service to credit institutes in terms of pick-up frequencies.

Service

Ongoing

Completed

Editor - Special Issue, Transportation Research Part C (Jul 01, 2007 - Apr 01, 2009)

Mats Weber

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Mats Weber.

Journal articles

2006

Antonini G., Bierlaire M., Weber M. (2006). Discrete choice models of pedestrian walking behavior. Transportation Research Part B: Methodological 40 (8):667-687

We propose a discrete choice framework for pedestrian dynamics, modelling short term behavior of individuals as a response to the presence of other pedestrians. We use a dynamic and individual-based spatial discretization, representing the physical space. We develop a model predicting where the next step of a walking pedestrian will be, at a given point in time. The use of the discrete choice framework is justified by its flexibility, the capacity to deal with individuals and the compatibility with agent-based simulation. The model is calibrated using data from actual pedestrian movements, manually taken from video sequences. We present two different formulations: a cross-nested logit and a mixed nested logit. In order to verify the quality of the calibrated model, we have designed and developed a pedestrians simulator.
```
@Article{AntoBierWebe06,
  author = {Gianluca Antonini and Michel Bierlaire and Mats Weber},
  title = {Discrete choice models of pedestrian walking behavior},
  journal = {Transportation Research Part B: Methodological},
  year = {2006},
  volume = {40},
  number = {8},
  pages = {667-687},
  DOI = {10.1016/j.trb.2005.09.006}}}
```

Book chapters

2007

Bierlaire M., Antonini G., Weber M. (2007) Behavioural dynamics for pedestrians. In Axhausen, K. W. (ed) Moving through nets: the physical and social dimensions of travel, Elsevier [ISBN 0 08 044213 7]


@InProceedings{BierAntoWebe07,
  author = {Michel Bierlaire and Gianluca Antonini and Mats Weber},
  title = {Behavioural dynamics for pedestrians},
  year = {2007},
  booktile = {Moving through nets: the physical and social dimensions of travel},
  editor = {Axhausen and  K. W.},
  publisher = {Elsevier},
  pages = {81-105}}}

Technical reports

2004

Antonini G., Bierlaire M., Weber M. (2004). Discrete choice models of pedestrian behavior. Report RO-040916


@TechReport{AntoBierWebe04,
  author = {Gianluca Antonini and Michel Bierlaire and Mats Weber},
  title = {Discrete choice models of pedestrian behavior},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2004},
  type = {Technical Report},
  number = {RO-040916},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2004

Antonini G., Bierlaire M., Weber M. (2004) Simulation of Pedestrian Behaviour using a Discrete Choice Model Calibrated on Actual Motion Data. Proceedings of the Swiss Transport Research Conference (STRC), March 24-26, Ascona, Switzerland


@InProceedings{AntoBierWebe04,
  author = {Gianluca Antonini and Michel Bierlaire and Mats Weber},
  title = {Simulation of Pedestrian Behaviour using a Discrete Choice Model Calibrated on Actual Motion Data},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), March 24-26},
  year = {2004},
  address = {Ascona, Switzerland}}}

Awards

2009

Gianluca Antonini, Michel Bierlaire, Mats Weber. Ranked 12th in the TOP 25 hottest articles of Transportation Research Part B for January-March 2009, Transportation Research Part B.
Antonini, G., Bierlaire, M., and Weber, M. (2006). Discrete choice models of pedestrian walking behavior, Transportation Research Part B: Methodological 40(8):667-687. doi:10.1016/j.trb.2005.09.006.

Research projects

2002

SIMBAD: Simulation-Based Automatic Detection

Develop a model-based detection system where the scene analysis is supported by a crowd simulator
- Oct 01, 2002 - Sep 30, 2004
- Sponsor: Commission pour la technologie et de l'innovation, Office Fédéral de la formation professionnelle et de la technologie.
- Principal investigator: Michel Bierlaire
- Project manager: Mats Weber
- Collaborator: Gianluca Antonini

Personal webpage

Nicola Ortelli

Nicola Ortelli has been a member of the laboratory from Sep 02, 2019 to Sep 30, 2024

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Nicola Ortelli.

Journal articles

2024

Ortelli N., de Lapparent M., Bierlaire M. (2024). Resampling Estimation of Discrete Choice Models. Journal of Choice Modelling 50 (100467)

In the context of discrete choice modeling, the extraction of potential behavioral insights from large datasets is often limited by the poor scalability of maximum likelihood estimation. This paper proposes a simple and fast dataset-reduction method that is specifically designed to preserve the richness of observations originally present in a dataset, while reducing the computational complexity of the estimation process. Our approach, called LSH-DR, leverages locality-sensitive hashing to create homogeneous clusters, from which representative observations are then sampled and weighted. We demonstrate the efficacy of our approach by applying it on a real-world mode choice dataset: the obtained results show that the samples generated by LSH-DR allow for substantial savings in estimation time while preserving estimation efficiency at little cost.
```
@Article{OrteLappBier2024,
  author = {Nicola Ortelli and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Resampling Estimation of Discrete Choice Models},
  journal = {Journal of Choice Modelling},
  year = {2024},
  volume = {50},
  number = {100467},
  DOI = {10.1016/j.jocm.2023.100467},
  note = {Accepted on Dec 20, 2023}}}
```

2021

Ortelli N., Hillel T., Pereira F., de Lapparent M., Bierlaire M. (2021). Assisted Specification of Discrete Choice Models. Journal of Choice Modelling 39 (100285)

Determining appropriate utility specifications for discrete choice models is time-consuming and prone to errors. As the number of possible functions exponentially grows with the vari- ables under consideration, analysts need to spend increasing amounts of time on searching for good specifications through trial-and-error and expert knowledge. This paper proposes a data-driven algorithm that aims at assisting modelers in their search. Our approach trans- lates the task into a multi-objective combinatorial optimization problem and makes use of a variant of the variable neighborhood search algorithm to generate solutions. We apply the algorithm to a real mode choice dataset as a proof of concept. The results demonstrate its ability to generate high-quality specifications in reasonable amounts of time.
```
@Article{OrteHillCamadeLaBier21,
  author = {Nicola Ortelli and Tim Hillel and Francisco Pereira and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Assisted Specification of Discrete Choice Models},
  journal = {Journal of Choice Modelling},
  year = {2021},
  volume = {39},
  number = {100285},
  DOI = {10.1016/j.jocm.2021.100285},
  note = {Accepted on Mar 16, 2021}}}
```

2020

Rodrigues F., Ortelli N., Bierlaire M., Pereira F. (2020). Bayesian Automatic Relevance Determination for Utility Function Specification in Discrete Choice Models. IEEE Transactions on Intelligent Transportation Systems


@Article{RodrOrteBierPere20,
  author = {Filipe Rodrigues and Nicola Ortelli and Michel Bierlaire and Francisco Pereira},
  title = {Bayesian Automatic Relevance Determination for Utility Function Specification in Discrete Choice Models},
  journal = {IEEE Transactions on Intelligent Transportation Systems},
  year = {2020},
  DOI = {10.1109/TITS.2020.3031965},
  note = {Accepted on Oct 14, 2020}}}

Technical reports

2024

Ortelli N., de Lapparent M., Varotto S., Bierlaire M. (2024). An integrated ordered logit and latent variable model for accident injury severity and risk-taking behavior. Report TRANSP-OR 240101


@TechReport{OrteLappVaroBier2024,
  author = {Nicola Ortelli and Matthieu {de Lapparent} and Silvia Varotto and Michel Bierlaire},
  title = {An integrated ordered logit and latent variable model for accident injury severity and risk-taking behavior},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2024},
  type = {Technical Report},
  number = {TRANSP-OR 240101},
  address = {Lausanne, Switzerland}}}

2023

Ortelli N., de Lapparent M., Bierlaire M. (2023). Resampling estimation of discrete choice models. Report TRANSP-OR 230330


@TechReport{OrteLappBier2023,
  author = {Nicola Ortelli and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Resampling estimation of discrete choice models},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2023},
  type = {Technical Report},
  number = {TRANSP-OR 230330},
  address = {Lausanne, Switzerland}}}

Bierlaire M., Ortelli N. (2023). Assisted specification with Biogeme 3.2.12. Report TRANSP-OR 230816


@TechReport{BierOrte23,
  author = {Michel Bierlaire and Nicola Ortelli},
  title = {Assisted specification with Biogeme 3.2.12},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2023},
  type = {Technical Report},
  number = {TRANSP-OR 230816},
  address = {Lausanne, Switzerland}}}

2022

Bierlaire M., Ortelli N. (2022). Assisted specification with Biogeme. Report TRANSP-OR 220707


@TechReport{BierOrte22,
  author = {Michel Bierlaire and Nicola Ortelli},
  title = {Assisted specification with Biogeme},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2022},
  type = {Technical Report},
  number = {TRANSP-OR 220707},
  address = {Lausanne, Switzerland}}}

2020

Ortelli N., Hillel T., Pereira F., de Lapparent M., Bierlaire M. (2020). Assisted Specification of Discrete Choice Models. Report TRANSP-OR 200708


@TechReport{OrtHilPerLapBie2020,
  author = {Nicola Ortelli and Tim Hillel and Francisco Pereira and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Assisted Specification of Discrete Choice Models},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2020},
  type = {Technical Report},
  number = {TRANSP-OR 200708},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2024


@InProceedings{OrtHilPerLapBie_HEART2024,
  author = {Nicola Ortelli and Matthieu {de Lapparent} and Silvia Varotto and Michel Bierlaire},
  title = {An integrated accident injury severity and risk-taking behavior model for the evaluation of Via Sicura},
  booktime = {Proceedings of the 12th Symposium of the European Association for Research in Transportation (HEART), 18-20 June 2024},
  year = {2024},
  address = {Espoo, Finland}}}


@InProceedings{OrtLapBie_STRC2024,
  author = {Nicola Ortelli and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {A conditional trust-region algorithm for the estimation of discrete choice models},
  booktime = {Proceedings of the 24th Swiss Transport Research Conference (STRC), 15-17 May},
  year = {2024},
  address = {Ascona, Switzerland}}}

2023


@InProceedings{OrtHilPerLapBie_HEART2023,
  author = {Nicola Ortelli and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Faster estimation of discrete choice models via

weighted dataset reduction},
  booktime = {Proceedings of the 11th Symposium of the European Association for Research in Transportation (HEART), 6-8 September 2023},
  year = {2023},
  address = {Zurich, Switzerland}}}


@InProceedings{OrtLapBie_STRC2023,
  author = {Nicola Ortelli and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Stochastic adaptive resampling for the estimation of discrete choice models},
  booktime = {Proceedings of the 23rd Swiss Transport Research Conference (STRC), 10-12 May},
  year = {2023},
  address = {Ascona, Switzerland}}}

2022


@InProceedings{OrtLapBie_STRC2022,
  author = {Nicola Ortelli and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Faster estimation of discrete choice models via dataset reduction},
  booktime = {Proceedings of the 22nd Swiss Transport Research Conference (STRC), 18-20 May},
  year = {2022},
  address = {Ascona, Switzerland}}}

2021


@InProceedings{OrtBieLap_STRC2021,
  author = {Nicola Ortelli and Michel Bierlaire and Matthieu {de Lapparent}},
  title = {Can we infer on behavioral impacts of public policy on accident severity outcomes? A Swiss case study using historical disaggregate accident reports},
  booktime = {Proceedings of the 21st Swiss Transport Research Conference (STRC), 12-14 September},
  year = {2021},
  address = {Ascona, Switzerland}}}

2020


@InProceedings{OrtHilPerLapBie_HEART2020,
  author = {Nicola Ortelli and Tim Hillel and Francisco Pereira and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Variable Neighborhood Search for Assisted Utility Specification in Discrete Choice Models},
  booktime = {Proceedings of the 9th Symposium of the European Association for Research in Transportation (HEART), 3-4 February 2021},
  year = {2020},
  address = {Lyon, France}}}

Talks

2024

Ortelli N., de Lapparent M., Varotto S., Bierlaire M. An integrated injury severity and risk-taking behavior model for the evaluation of Via Sicura June 19, 2024. 12th Symposium of the European Association for Research in Transportation, Aalto University, Espoo, Finland.


@Misc{Ortelli_hEART2024,
  author = {Nicola Ortelli and Matthieu {de Lapparent} and Silvia Varotto and Michel Bierlaire},
  title = {An integrated injury severity and risk-taking behavior model for the evaluation of Via Sicura},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Ortelli_hEART2024.pdf}},
  year = {2024},
  note = {Presented at 12th Symposium of the European Association for Research in Transportation, Aalto University, Espoo, Finland}}}

Ortelli N., de Lapparent M., Bierlaire M. A conditional trust-region algorithm for the estimation of discrete choice models May 16, 2024. 24th Swiss Transport Research Conference, Monte Verità, Ascona, Switzerland.


@Misc{Ortelli_strc2024,
  author = {Nicola Ortelli and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {A conditional trust-region algorithm for the estimation of discrete choice models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Ortelli_strc2024.pdf}},
  year = {2024},
  note = {Presented at 24th Swiss Transport Research Conference, Monte Verit\à, Ascona, Switzerland}}}

2023

Ortelli N., Varotto S., Bierlaire M., de Lapparent M. Un nouveau modèle hybride pour la modélisation de la conduite imprudente et de la gravité des accidents October 12, 2023. Séminaire interne de l'IIDE, Yverdon-les-Bains, Switzerland.


@Misc{Ortelli_iide2023,
  author = {Nicola Ortelli and Silvia Varotto and Michel Bierlaire and Matthieu {de Lapparent}},
  title = {Un nouveau mod\èle hybride pour la mod\élisation de la conduite imprudente et de la gravit\é des accidents

},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Ortelli_iide2023.pdf}},
  year = {2023},
  note = {Presented at S\éminaire interne de l'IIDE, Yverdon-les-Bains, Switzerland}}}

Ortelli N., de Lapparent M., Bierlaire M. Resampling estimation of discrete choice models September 07, 2023. 11th Symposium of the European Association for Research in Transportation, ETHZ, Zurich, Switzerland.


@Misc{Ortelli_hEART2023,
  author = {Nicola Ortelli and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Resampling estimation of discrete choice models

},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Ortelli_hEART2023.pdf}},
  year = {2023},
  note = {Presented at 11th Symposium of the European Association for Research in Transportation, ETHZ, Zurich, Switzerland}}}

Ortelli N., de Lapparent M., Bierlaire M. Stochastic adaptive resampling for the estimation of discrete choice models June 01, 2023. 15th workshop on Discrete Choice Models, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.


@Misc{Ortelli_dcm2023,
  author = {Nicola Ortelli and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Stochastic adaptive resampling

for the estimation of discrete choice models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Ortelli_dcm2023.pdf}},
  year = {2023},
  note = {Presented at 15th workshop on Discrete Choice Models, Ecole Polytechnique F\éd\érale de Lausanne, Lausanne, Switzerland}}}

Ortelli N., de Lapparent M., Bierlaire M. Stochastic adaptive resampling for the estimation of discrete choice models May 11, 2023. 23rd Swiss Transport Research Conference, Monte Verità, Ascona, Switzerland.


@Misc{Ortelli_strc2023,
  author = {Nicola Ortelli and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Stochastic adaptive resampling for the estimation of discrete choice models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Ortelli_strc2023.pdf}},
  year = {2023},
  note = {Presented at 23rd Swiss Transport Research Conference, Monte Verit\à, Ascona, Switzerland}}}

Ortelli N., Varotto S., Bierlaire M., de Lapparent M. An integrated ordered logit and latent variable model for crash injury severity: a Swiss case study using disaggregate crash reports February 16, 2023. 1st EPFL Symposium on Transportation Research, EPFL, Annecy, France.


@Misc{Ortelli_sympo2023,
  author = {Nicola Ortelli and Silvia Varotto and Michel Bierlaire and Matthieu {de Lapparent}},
  title = {An integrated ordered logit and latent variable model for crash injury severity: a Swiss case study using disaggregate crash reports},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Ortelli_sympo2023.pdf}},
  year = {2023},
  note = {Presented at 1st EPFL Symposium on Transportation Research, EPFL, Annecy, France}}}

2022

Ortelli N., Varotto S., Bierlaire M., de Lapparent M. An integrated ordered logit and latent variable model for crash injury severity: a Swiss case study using disaggregate crash reports December 15, 2022. 16th International Conference on Travel Behaviour Research, International Association for Travel Behaviour Research (IATBR), Santiago, Chile.


@Misc{Ortelli_iatbr2022,
  author = {Nicola Ortelli and Silvia Varotto and Michel Bierlaire and Matthieu {de Lapparent}},
  title = {An integrated ordered logit and latent variable model for crash injury severity: a Swiss case study using disaggregate crash reports},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Ortelli_iatbr2022.pdf}},
  year = {2022},
  note = {Presented at 16th International Conference on Travel Behaviour Research, International Association for Travel Behaviour Research (IATBR), Santiago, Chile}}}

Ortelli N., de Lapparent M., Bierlaire M. Faster estimation of discrete choice models via dataset reduction May 19, 2022. 22nd Swiss Transport Research Conference, Monte Verità, Ascona, Switzerland.


@Misc{Ortelli_strc2022,
  author = {Nicola Ortelli and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Faster estimation of discrete choice models via dataset reduction},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Ortelli_strc2022.pdf}},
  year = {2022},
  note = {Presented at 22nd Swiss Transport Research Conference, Monte Verit\à, Ascona, Switzerland}}}

2021

Ortelli N., Bierlaire M., de Lapparent M. Can we infer on behavioral impacts of public policy on accident severity outcomes? September 13, 2021. 21st Swiss Transport Research Conference, Monte Verità, Ascona, Switzerland.


@Misc{Ortelli_strc2021,
  author = {Nicola Ortelli and Michel Bierlaire and Matthieu {de Lapparent}},
  title = {Can we infer on behavioral impacts of public policy on accident severity outcomes?},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Ortelli_strc2021.pdf}},
  year = {2021},
  note = {Presented at 21st Swiss Transport Research Conference, Monte Verit\à, Ascona, Switzerland}}}

Ortelli N. Assisted specification of discrete choice models July 13, 2021. CMC Online Seminar Series 2021, Choice Modelling Centre (CMC), University of Leeds, Leeds, UK.


@Misc{Ortelli_leeds2021,
  author = {Nicola Ortelli},
  title = {Assisted specification of discrete choice models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Ortelli_leeds2021.pdf}},
  year = {2021},
  note = {Presented at CMC Online Seminar Series 2021, Choice Modelling Centre (CMC), University of Leeds, Leeds, UK}}}

Reviewing

EPFL courses

Fall 2023

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Evangelos Paschalidis, Nicola Ortelli, Janody Pougala, Cloe Cortes Balcells, Pavel Ilinov, Risa Kobayashi
- Webpage: https://moodle.epfl.ch/course/view.php?id=1001

Fall 2022

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Silvia Varotto, Nicola Ortelli, Cloe Cortes Balcells, Tom Haering
- Webpage: https://moodle.epfl.ch/course/view.php?id=1001

Fall 2021

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Virginie Lurkin
- Teaching assistants: Melvin Wong, Silvia Varotto, Nicola Ortelli, Janody Pougala, Rico Krueger, Tim Hillel
- Webpage: https://moodle.epfl.ch/course/view.php?id=1001

Fall 2020

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Melvin Wong, Rico Krueger, Janody Pougala, Nicola Ortelli, Meritxell Pacheco, Tim Hillel
- Webpage: https://moodle.epfl.ch/course/view.php?id=1001

Fall 2019

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Tim Hillel, Meritxell Pacheco, Janody Pougala, Nicola Ortelli
- Webpage: https://moodle.epfl.ch/course/view.php?id=1001

Various lectures

2024

Logit Mixtures; Combining Data (SP and RP).
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Feb 13, 2024
- Lecturer: Evangelos Paschalidis
- Assistants: Cloe Cortes Balcells, Nicola Ortelli
Introduction, Logit Estimation and Testing.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Feb 11, 2024
- Lecturer: Tom Haering
- Assistants: Negar Rezvany, Nicola Ortelli, Fabian Torres

2023

Hierarchical Bayesian Estimation; Individual Prediction.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Feb 02, 2023
- Lecturer: Janody Pougala
- Assistants: Marija Kukic, Nicola Ortelli
Hybrid choice models.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Feb 01, 2023
- Lecturer: Nicola Ortelli
- Assistants: Tom Haering, Evangelos Paschalidis, Janody Pougala
Logit Estimation and Specification Testing.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Jan 29, 2023
- Lecturer: Tom Haering
- Assistants: Cloe Cortes Balcells, Marija Kukic, Nicola Ortelli

2021

Hybrid Choice Models.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Feb 12, 2021
- Lecturer: Nicola Ortelli
- Assistant: Rico Krueger

Master theses

2022

Stochastic and robust hydropower unit commitment, Pierre Tarazi (Electrical and Electronics Engineering)
- Supervision: Tom Haering, Nicola Ortelli
- External expert: Maziar Kermani

2020

Feuille de route pour l'électrification du réseau de bus urbains de Lausanne à l'horizon 2030, Alain Azzi (Mechanical Engineering)
- Supervision: Nicola Ortelli, Janody Pougala, Michel Bierlaire
- External expert: Philippe Seydoux

Semester projects

2024

Improving the specification of migration aspiration discrete choice models via attitudinal variables, Anne-Valérie Preto (Civil Engineering)

Supervision: Evangelos Paschalidis, Nicola Ortelli, Michel Bierlaire
International migration is a crucial but controversial topic that raises issues and concerns to be resolved in the parties involved. In industrialised nations, the proportion of immigrants in total population increased between 1960 and 2019, raising fears about economic costs for natives, loss of national identity, and integra- tion issues. In poor countries, international migration raises concerns regarding brain drain of highly-skilled people, as college and university graduates have a higher tendency to emigrate than the less educated (Beine et al., 2021). The accurate understanding and prediction of migration motifs are crucial from a policy- making perspective, to measure for instance the immigration pressure a country faces. Improved models can help to predict and adjust migration flows but also to identify and mitigate adverse effects on all parties involved. The objective of this project is to extend advanced discrete choice model specifications that address issues such as the independence from irrelevant alternatives (IIA). For instance, Beine et al. (2021) implemented a cross-nested logit (CNL) model to approximate the substitution patterns in migration aspirations of Indian individuals more accurately. The specification of such models could be improved by incorporating addi- tional variables related to risk aversion of the individuals, perceived security of their environment, perceived degradation of the climatic conditions or perceived governance in their country could influence aspiration. To address issues related to measurement errors, these variables will be incorporated in the form of latent variables which have been extensively used in the past in the field of discrete choice models. Ultimately, the objective of this project is to extend the use of latent variables in the context of migration aspiration models and examine whether the insights of previous models (such as the CNL), for instance in terms of substitution, hold when improving this specification.

2023

A detailed evaluation of the Via Sicura program, Mya Jamal Lahjouji (Civil Engineering)

Supervision: Nicola Ortelli, Selin Atac, Michel Bierlaire
This project aims at updating and improving the official evaluation of the Via Sicura road safety program.

2022-2023

Scenario generation for the multi-agent transport simulation toolkit, MATSim, Anne-Valerie Preto (Civil Engineering)

Supervision: Selin Atac, Nicola Ortelli, Michel Bierlaire
CSSs are becoming increasingly popular, primarily due to their financial and environmental advantages. However, they face many operational challenges, including inventory management of vehicles and parking spots, vehicle load balancing and redistribution, pricing strategies, and demand forecasting. If these challenges are not addressed properly, the CSS risks experiencing a significant loss of customers and therefore revenue. The literature consists of variety of works on CSSs especially focused on the rebalancing operations. On the other hand, it lacks the detailed comparison of different strategies of rebalancing operations at a disaggregate level. One approach to fill this gap is using an agent-based transport simulation. Such simulation toolkits allow analysis at the individual level and testing different configurations such as city and network structure. Therefore, in this study the student will review the literature to determine the main characteristics of the CSSs. In the first part of the project, she will work on creating representative scenarios for the multi-agent transport simulation toolkit, MATSim, based on the findings in the literature. These scenarios will be used to compare different rebalancing operations strategies where an optimization module is used. The second part of the project will be implementing analysis scripts that will provide useful information on the simulation results.

Comparison of machine learning techniques for synthetic activity generation, Xinling Li (Civil Engineering)

Supervision: Marija Kukic, Nicola Ortelli, Michel Bierlaire
This project aims to investigate the good and the bad sides of state-of-the-art Machine Learning techniques applied in the context of synthetic population generation, focusing on the generation of attributes that de- scribe synthetic activities. Recently, there has been an increase in research focus on the application of deep generative learning algorithms for generating synthetic populations and travel behaviour modelling, including Variational Auto-Encoders (VAEs) and Generative Adversarial Networks (GANs) (Borysov et al., 2019, Wong and Farooq, 2020). Whilst initial experiments show promising results, there are still significant drawbacks with using generative modelling on population synthesis, which includes vanishing gradients, training instability or mode collapse, nor it allows for exact evaluation of the probability density of new points. Based on the literature review, we try to propose possible improvements for existing methodologies by identifying if there is a way to capture better the correlations between variables. One of the techniques that could be improved is Generative Adversarial Networks (GANs). For instance, DATGAN (Lederrey et al., 2022) is a GAN architecture that tries to give more control to the modellers when generating synthetic tabular data. It uses a Directed Acyclic Graph (DAG) to represent the correlation between variables in the dataset. This DAG is then used to define the structure of the Generator. Each variable is represented by an LSTM cell. However, due to the linear nature of LSTM cells, it is required to have a DAG instead of an acyclic graph. This directionality can be an issue when designing the DAG since it represents causality between variables. Thus, we could improve the DATGAN by removing the directionality and only specifying correlations between variables. Graph Neural Networks (GNNs) are a specific type of NN designed to mimic any type of graph, and they can be used to design the architecture for the Generator. This change would give more freedom to the user and make the method more flexible since DATGAN would not require any specific type of graph

Modelling migration intentions worldwide, Hilda Abigél Horváth (Mathematics)

Supervision: Silvia Varotto, Nicola Ortelli, Michel Bierlaire
Migration across different countries is a major topic of policy debates worldwide that receives relatively little attention in the travel behaviour literature. In industrialized countries, the proportion of immigrants in the total population has increased in recent years resulting in concerns about integration, loss of national identity and economic expenses. In low-opportunity countries, international migration raises fears of loss of highly skilled workers, who are the group most likely to emigrate. Therefore, understanding the main factors that influence the location where migrants choose to settle is of primary interest for both researchers and policy makers. Location choices might be influenced by changes in the attractiveness of the country of origin, of the country of desstination, and of the alternative destinations. A recent study developed a cross-nested logit model to predict migration intentions in India based on characteristics of the individual, characteristics of the destination country and unobserved factors shared between similar destinations. However, there is still a dearth in understanding the main factors influencing migration intentions at a global scale, in countries that differ in terms of size, level of development and willingness to emigrate. The objective of this study is to assess the transferability of the previous model predicting migration intentions in India to other countries in the world. The study will identify the main characteristics of the countries of origin that have an impact on the migration intentions. The data were extracted from the Gallup World Poll (GWP) Survey. The GWP measures a series of key indicators including migration intentions and is one of the most comprehensive datasets available worldwide. Other key indicators measured in the survey are national security, nutrition, housing, job opportunities, financial situation, personal health, civil engagement and overall well-being. The GWP surveys cover more than 150 countries in the world, are usually repeated every year, and include 1000 individuals in each country. In this study, the GWP data will be analysed to select relevant countries based on the coverage, the number of waves available, the respondents per wave, and the variables available. The analysis will identify patterns per country and evolution of migration intentions over time. Mathematical methods will be implemented to understand which variables should be included to improve the model specification and to capture the perceptions of respondents about the living conditions in their country. These methods will be also used to explore the complex correlation patterns between the attributes and the destination choices.

2022

Comparing rebalancing operations in car sharing systems, Xinling Li (Civil Engineering)

Supervision: Selin Atac, Nicola Ortelli, Michel Bierlaire
A car sharing system (CSS) offers users to rent cars for a short period of time. The users are identified by an RFID card or through a mobile application. The price of the trip is generally determined according to trip duration and length. One of the challenges faced in such systems is the imbalance of the vehicles throughout the city. This problem is solved by forecasting the demand and rebalancing the vehicles to meet user demand. First, the student is going to review the literature related to rebalancing operations in CSSs. Then, she will design and/or implement different rebalancing strategies in order to test the effects of different characteristics of the city/region. In other words, different strategies (static, reactive, and proactive) for rebalancing operations will be tested for each scenario and the results will be used to drive to conclusions which explain the relation between the city structure, demand structure and the different strategies of rebalancing operations.

2021

How to assess synthetic data?, Romain Palazzo (Mathematics)

Supervision: Gael Lederrey, Nicola Ortelli, Michel Bierlaire

Road Safety: Investigating the Role of Latent Behaviors in Injury Severity, Daniela Spadaro (Mathematics)

Supervision: Nicola Ortelli, Gael Lederrey, Michel Bierlaire
Reducing the number of fatalities caused by traffic accidents is a major concern everywhere around the world. In order to do so, it is crucial to understand how various factors influence injury severity. The existing literature generally deals with explaining the influence of directly observable variables on the occurence and severity of crashes, but fails to adequately consider driver behavior. Hence, the main goal of this project is to explore approaches that enable the incorporation of latent attitudes in injury severity models. Specifically, we are interested in investigating the "propensity to taking risks" that drivers may exhibit, as well as the influence of such behaviors on the severity of injuries suffered by other road users.

2020

Enhancing the Serial Estimation of Discrete Choice Models Sequences, Youssef Kitane (Civil Engineering)

Supervision: Nicola Ortelli, Gael Lederrey, Michel Bierlaire
In the past years, an increasing number of studies has investigated the usefulness of data-driven methods for the task of developing discrete choice models so as to alleviate modelers from the burden of manual specification. One of these methods makes use of a variable neighborhood search algorithm to mimic the way an experienced modeler would build the utility functions of a discrete choice model. More precisely, small modifications are sequentially brought to an initial specification, while the induced improvement is assessed by means of a measure of performance. Although the quality of the generated models is high, this method faces a severe limitation: the computational time for a single run counts in hours with relatively small datasets and grows quickly with the amount of considered data. The main goal of this project is to speed up the estimation of DCMs in this precise context.

2019

Estimation of Discrete Choice Models using HAMABS 2.0, Linah Charif (Civil Engineering)

Supervision: Gael Lederrey, Nicola Ortelli, Michel Bierlaire
Improvement of HAMABS for choice modeling estimation using automatic switch.

Personal webpage

Janody Pougala

Janody Pougala has been a member of the laboratory from Mar 01, 2019 to Jan 31, 2024

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Janody Pougala.

Journal articles

2023


@Article{PougHillBier23,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {OASIS: Optimisation-based Activity Scheduling with Integrated Simultaneous choice dimensions},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2023},
  volume = {155},
  DOI = {10.1016/j.trc.2023.104291

}}}

2022

Manser P., Haering T., Hillel T., Pougala J., Krueger R., Bierlaire M. (2022). Estimating flexibility preferences to resolve temporal scheduling conflicts in activity-based modelling. Transportation

This paper presents a novel activity-based demand model that combines an optimisation framework for continuous temporal scheduling decisions (i.e. activity timings and durations) with traditional discrete choice models for non-temporal choice dimensions (i.e. activity participation, number and type of tours, and destinations). The central idea of our approach is that individuals resolve temporal scheduling conflicts that arise from overlapping activities, e.g. needing to work and desiring to shop at the same time, in order to maximise their daily utility. Flexibility parameters capture behavioural preferences that penalise deviations from desired timings. This framework has three advantages over existing activity-based modelling approaches: (i) the time conflicts between different temporal scheduling decisions including the activity sequence are treated jointly; (ii) flexibility parameters follow a utility maximisation approach; and (iii) the framework can be used to estimate and simulate a city-scale case study in reasonable time. We introduce an estimation routine that allows flexibility parameters to be estimated using real-world observations as well as a simulation routine to efficiently resolve temporal conflicts using an optimisation model. The framework is applied to the full-time workers of a synthetic population for the city of Lausanne, Switzerland. We validate the model results against reported schedules. The results demonstrate the capabilities of our approach to reproduce empirical observations in a real-world case study.
```
@Article{MansHaerHillPougKrueBier22,
  author = {Patrick Manser and Tom Haering and Tim Hillel and Janody Pougala and Rico Krueger and Michel Bierlaire},
  title = {Estimating flexibility preferences to resolve temporal scheduling conflicts in activity-based modelling},
  journal = {Transportation},
  year = {2022},
  DOI = {10.1007/s11116-022-10330-8},
  note = {Accepted on Aug 22, 2022}}}
```
Pougala J., Hillel T., Bierlaire M. (2022). Capturing trade-offs between daily scheduling choices. Journal of Choice Modelling 43 (100354)

We propose a new modelling approach for daily activity scheduling which integrates the different daily scheduling choice dimensions (activity participation, location, schedule, duration and transportation mode) into a single optimisation problem. The fundamental behavioural principle behind our approach is that individuals schedule their day to maximise their overall derived utility from the activities they complete, according to their individual needs, constraints, and preferences. By combining mul- tiple choices into a single optimisation problem, our framework is able to capture the complex trade-offs between scheduling decisions for multiple activities. These trade-offs could include how spending longer in one activity will reduce the time- availability for other activities or how the order of activities determines the travel- times. The implemented framework takes as input a set of considered activities, with associated locations and travel modes, and uses these to produce empirical distri- butions of individual schedules from which different daily schedules can be drawn. The model is illustrated using historic trip diary data from the Swiss Mobility and Transport Microcensus. The results demonstrate the ability of the proposed frame- work to generate complex and realistic distributions of starting time and duration for different activities within the tight time constraints. The generated schedules are then compared to the aggregate distributions from the historical data to demonstrate the feasibility and flexibility of our approach.
```
@Article{PougHillBier22,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {Capturing trade-offs between daily scheduling choices},
  journal = {Journal of Choice Modelling},
  year = {2022},
  volume = {43},
  number = {100354},
  DOI = {10.1016/j.jocm.2022.100354},
  note = {Accepted on Mar 19, 2022}}}
```

Technical reports

2022

Pougala J., Hillel T., Bierlaire M. (2022). OASIS: Optimisation-based Activity Scheduling with Integrated Simultaneous choice dimensions. Report TRANSP-OR 221124


@TechReport{PougHillBier22,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {OASIS: Optimisation-based Activity Scheduling

with Integrated Simultaneous choice dimensions},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2022},
  type = {Technical Report},
  number = {TRANSP-OR 221124},
  address = {Lausanne, Switzerland}}}

Bataillard L., Pougala J., Haering T., Bierlaire M. (2022). A comparative analysis of optimization algorithms for activity-based applications. Report TRANSP-OR 220610


@TechReport{BataPougHaerBier22,
  author = {Luca Bataillard and Janody Pougala and Tom Haering and Michel Bierlaire},
  title = {A comparative analysis of optimization algorithms for activity-based applications},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2022},
  type = {Technical Report},
  number = {TRANSP-OR 220610},
  address = {Lausanne, Switzerland}}}

2021

Manser P., Haering T., Hillel T., Pougala J., Krueger R., Bierlaire M. (2021). Resolving temporal scheduling conflicts in activity-based modelling. Report TRANSP-OR 211209


@TechReport{ManserEtAl2021,
  author = {Patrick Manser and Tom Haering and Tim Hillel and Janody Pougala and Rico Krueger and Michel Bierlaire},
  title = {Resolving temporal scheduling conflicts in activity-based modelling},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2021},
  type = {Technical Report},
  number = {TRANSP-OR 211209},
  address = {Lausanne, Switzerland}}}

Pougala J., Hillel T., Bierlaire M. (2021). Capturing trade-offs between daily scheduling choices. Report TRANSP-OR 210101


@TechReport{PougHillBier21,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {Capturing trade-offs between daily scheduling choices},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2021},
  type = {Technical Report},
  number = {TRANSP-OR 210101},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2023


@InProceedings{PoHiBi_STRC2023,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {From one-day to multiday activity scheduling: extending the OASIS framework},
  booktime = {Proceedings of the 23rd Swiss Transport Research Conference (STRC), 10-12 May},
  year = {2023},
  address = {Ascona, Switzerland}}}

Wang M., Pougala J., Bierlaire M. (2023) Initial comparisons between Multiple Discrete-Continuous Extreme Value (MDCEV) model and Optimization-based Activity Scheduling Integrating Simultaneous choice dimensions (OASIS) framework. Proceedings of the 23rd Swiss Transport Research Conference (STRC) (STRC), 10-12 May, Ascona, Switzerland


@InProceedings{WanPouBie_STRC2023,
  author = {Mengyi Wang and Janody Pougala and Michel Bierlaire},
  title = {Initial comparisons between Multiple Discrete-Continuous Extreme Value (MDCEV) model and Optimization-based Activity Scheduling Integrating Simultaneous choice dimensions (OASIS) framework},
  booktime = {Proceedings of the 23rd Swiss Transport Research Conference (STRC) (STRC), 10-12 May},
  year = {2023},
  address = {Ascona, Switzerland}}}

2022

Pougala J., Hillel T., Bierlaire M. (2022) Parameter estimation for activity-based models. Proceedings of the 22nd Swiss Transport Research Conference (STRC), 18-20 May, Ascona, Switzerland


@InProceedings{PoHiBi_STRC2022,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {Parameter estimation for activity-based models},
  booktime = {Proceedings of the 22nd Swiss Transport Research Conference (STRC), 18-20 May},
  year = {2022},
  address = {Ascona, Switzerland}}}


@InProceedings{Salvade_STRC2022,
  author = {Nicolas Salvad\'e and Tim Hillel and Janody Pougala and Tom Haering and Michel Bierlaire},
  title = {Representing location choice within activity-based models},
  booktime = {Proceedings of the 22nd Swiss Transport Research Conference (STRC), 18-20 May},
  year = {2022},
  address = {Ascona, Switzerland}}}

2021


@InProceedings{Haering_STRC2021,
  author = {Tom Haering and Patrick Manser and Tim Hillel and Janody Pougala and Rico Krueger and Michel Bierlaire},
  title = {Resolving time conflicts in activity-based scheduling: A case study of Lausanne},
  booktime = {Proceedings of the 21st Swiss Transport Research Conference (STRC), 12-14 September},
  year = {2021},
  address = {Ascona, Switzerland}}}

Pougala J., Hillel T., Bierlaire M. (2021) Choice set generation for activity-based models. Proceedings of the 21st Swiss Transport Research Conference (STRC), 12-14 September, Ascona, Switzerland


@InProceedings{PoHiBi_STRC2021,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {Choice set generation for activity-based models},
  booktime = {Proceedings of the 21st Swiss Transport Research Conference (STRC), 12-14 September},
  year = {2021},
  address = {Ascona, Switzerland}}}

2020


@InProceedings{HilPouManLueSchBie_HEART2020,
  author = {Tim Hillel and Janody Pougala and Patrick Manser and Raphael Luethi and Wolfgang Scherr and Michel Bierlaire},
  title = {Modelling mobility tool availability at a household and individual level: A case study of Switzerland},
  booktime = {Proceedings of the 9th Symposium of the European Association for Research in Transportation (HEART), 3-4 February 2021},
  year = {2020},
  address = {Lyon, France}}}


@InProceedings{PouHilBie_HEART2020,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {An optimization framework for daily activity schedules},
  booktime = {Proceedings of the 9th Symposium of the European Association for Research in Transportation (HEART), 3-4 February 2021},
  year = {2020},
  address = {Lyon, France}}}


@InProceedings{PouHilBie_STRC2020,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {Scheduling of daily activities: an optimization approach},
  booktime = {Proceedings of the 20th Swiss Transport Research Conference (STRC), 13-14 May},
  year = {2020},
  address = {Ascona, Switzerland}}}

Talks

2023

Pougala J., Hillel T., Bierlaire M. Modelling the impact of activity duration on utility-based scheduling decisions: a comparative analysis September 06, 2023. 11th Symposium of the European Association for Research in Transportation, ETHZ, Zurich, Switzerland.


@Misc{Pougala_hEART2023,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {Modelling the impact of activity duration on utility-based scheduling decisions: a comparative analysis},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pougala_hEART2023.pdf}},
  year = {2023},
  note = {Presented at 11th Symposium of the European Association for Research in Transportation, ETHZ, Zurich, Switzerland}}}

Pougala J., Hillel T., Bierlaire M. Modelling the impact of activity duration on utility-based scheduling decisions September 05, 2023. MatSIM User Meeting, ETHZ, Zurich, Switzerland.


@Misc{Pougala_MUM2023,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {Modelling the impact of activity duration on utility-based scheduling decisions},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pougala_MUM2023.pdf}},
  year = {2023},
  note = {Presented at MatSIM User Meeting, ETHZ, Zurich, Switzerland}}}

Pougala J., Hillel T., Bierlaire M. Modelling the impact of activity duration on utility-based scheduling decisions: a comparative analysis June 02, 2023. 15th workshop on Discrete Choice Models, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.


@Misc{Pougala_DC2023,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {Modelling the impact of activity duration on utility-based scheduling decisions: a comparative analysis},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pougala_DC2023.pdf}},
  year = {2023},
  note = {Presented at 15th workshop on Discrete Choice Models, Ecole Polytechnique F\éd\érale de Lausanne, Lausanne, Switzerland}}}

Pougala J., Hillel T., Bierlaire M. From one-day to multiday activity scheduling: extending the OASIS framework May 10, 2023. STRC 2023, Monte Veritá, Ascona, Switzerland.


@Misc{Pougala_STRC2023,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {From one-day to multiday activity scheduling: extending the OASIS framework},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pougala_STRC2023.pdf}},
  year = {2023},
  note = {Presented at STRC 2023, Monte Verit\á, Ascona, Switzerland}}}

2022

Pougala J., Hillel T., Bierlaire M. OASIS: An integrated framework to simulate daily scheduling December 12, 2022. 16th International Conference on Travel Behaviour Research, International Association for Travel Behaviour Research (IATBR), Santiago, Chile.


@Misc{Pougala_IATBR2022,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {OASIS: An integrated framework to simulate daily scheduling},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pougala_IATBR2022.pdf}},
  year = {2022},
  note = {Presented at 16th International Conference on Travel Behaviour Research, International Association for Travel Behaviour Research (IATBR), Santiago, Chile}}}

Pougala J., Hillel T., Bierlaire M. OASIS: An optimisation framework for daily activity scheduling November 25, 2022. USL Seminar Series, Urban Systems Laboratory, Imperial College London , London, UK.


@Misc{Pougala_Imperial2022,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {OASIS: An optimisation framework for daily activity scheduling},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pougala_Imperial2022.pdf}},
  year = {2022},
  note = {Presented at USL Seminar Series, Urban Systems Laboratory, Imperial College London

, London, UK}}}

Pougala J., Hillel T., Bierlaire M. OASIS: An optimisation framework for daily activity scheduling November 24, 2022. , City Modelling Lab, ARUP, London, UK.


@Misc{Pougala_ARUP2022,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {OASIS: An optimisation framework for daily activity scheduling},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pougala_ARUP2022.pdf}},
  year = {2022},
  note = {Presented at , City Modelling Lab, ARUP, London, UK}}}

Pougala J., Hillel T., Bierlaire M. OASIS: An optimisation framework for daily activity scheduling October 31, 2022. ISI Seminar Series, Infrastructure Systems Institute, University College London, London, UK.


@Misc{Pougala_UCL22,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {OASIS: An optimisation framework for daily activity scheduling},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pougala_UCL22.pdf}},
  year = {2022},
  note = {Presented at ISI Seminar Series, Infrastructure Systems Institute, University College London, London, UK}}}

Pougala J., Hillel T., Bierlaire M. An optimisation framework for activity-based models September 13, 2022. Seeon Symposium on Activity-Based Modelling, TUM, Kloster Seeon, Germany.


@Misc{Pougala_TUM2022,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {An optimisation framework for activity-based models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pougala_TUM2022.pdf}},
  year = {2022},
  note = {Presented at Seeon Symposium on Activity-Based Modelling, TUM, Kloster Seeon, Germany}}}

Pougala J., Hillel T., Bierlaire M. Parameter estimation for activity-based models May 19, 2022. STRC 2022, Monte Veritá, Ascona, Switzerland.


@Misc{Pougala_STRC2022,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {Parameter estimation for activity-based models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pougala_STRC2022.pdf}},
  year = {2022},
  note = {Presented at STRC 2022, Monte Verit\á, Ascona, Switzerland}}}

Pougala J., Hillel T., Bierlaire M. Optimisation-based activity-based models April 27, 2022. ETH workshop on agent-based models , Institute for Transport Planning and Systems (ETHZ-IVT), Zurich, Switzerland.


@Misc{Pougala_ETH2022,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {Optimisation-based activity-based models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pougala_ETH2022.pdf}},
  year = {2022},
  note = {Presented at ETH workshop on agent-based models , Institute for Transport Planning and Systems (ETHZ-IVT), Zurich, Switzerland}}}

Pougala J., Hillel T., Bierlaire M. Choice set generation for activity-based models April 06, 2022. mobil.TUM 2022: 12th International Scientific Conference on Mobility and Transport, TUM Asia, Online.


@Misc{Pougala_mobilTUM22,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {Choice set generation for activity-based models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pougala_mobilTUM22.pdf}},
  year = {2022},
  note = {Presented at mobil.TUM 2022: 12th International Scientific Conference on Mobility and Transport, TUM Asia, Online}}}

2021

Pougala J., Hillel T., Bierlaire M. Choice set generation for activity-based models September 14, 2021. STRC 2021, Monte Veritá, Ascona, Switzerland.


@Misc{Pougala_STRC2021,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {Choice set generation for activity-based models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pougala_STRC2021.pdf}},
  year = {2021},
  note = {Presented at STRC 2021, Monte Verit\á, Ascona, Switzerland}}}

2020

Pougala J., Hillel T., Bierlaire M. Scheduling of daily activities: an optimization approach May 13, 2020. STRC 2020, Monte Veritá, Ascona, Switzerland.


@Misc{Pougala_STRC2020,
  author = {Janody Pougala and Tim Hillel and Michel Bierlaire},
  title = {Scheduling of daily activities: an optimization approach},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pougala_STRC2020.pdf}},
  year = {2020},
  note = {Presented at STRC 2020, Monte Verit\á, Ascona, Switzerland}}}

Awards

2023

Janody Pougala. Best Paper Award , European Association for Research in Transportation (hEART).
.

2022

Janody Pougala. PhD mobility award 2022, Doctoral School Civil and Environmental Engineering (EDCE).
The PhD Mobility Award is given by the doctoral program in Civil and Environmental Engineering (EDCE) to encourage good PhD students within the program to go for an academic visit to an external research institution..

Reviewing

Journal of Transport and Land Use (2)
Transportation Science (2)

Research projects

2022

E-Bike City

This project has the following content: Transport policy is currently not finding a way out of its dilemma; the imminent need to decarbonize a sector fast which has barely moved in the recent past and the social requirement to maintain and increase accessibility across all modes, but not to encourage sprawl while still allowing further decreases in the generalised cost of travel by new technologies and business models. We propose to use a radical departure from previous proposed ideas to enable the policy and transport industry to begin thinking from a different starting point. The design idea is to reallocate 50% of the existing urban road space to e-bikes, bicycles, and other micromobility modes and to assess what this change could achieve in terms of accessibility, generalised costs of travel, changes in daily life and reductions in emissions and CO2. The project will integrate careful involvement of the various stakeholders from citizens, cities, firms to interest groups, but will also provide the materials needed to communicate the ideas and their equity impacts visually and verbally at the required levels of complexity.
- Sep 01, 2022 - Dec 31, 2025
- Sponsor: Swiss Federal Office of Energy
- Principal investigator: Michel Bierlaire
- Project manager: Janody Pougala

2020

Activity scheduling an rhythmic style: multi-day modeling of mobility habits

A growing body of research shows that the traditional approaches employed to plan and forecast travel behaviors are not equipped to deal with the heterogeneity of behaviors over time, space, and social spheres. Therefore, travel policies struggle to reconcile social inclusivity, sustainability and network efficiency. Two ENAC laboratories propose to join forces, in mathematical modeling and quantitative sociology, to develop a novel multi-day activity-scheduling framework to forecast travel demand. Integrating day-to-day correlations in travel behaviors will lead to a better understanding of the motives behind travel decisions, and will unveil more facets of individual decision making for better predictions of their daily mobility choices. This research uses the MOBIS dataset, a 8-week / 3700-respondent travel survey conducted in Switzerland in 2019. The forecasting model will be applied to the Swiss synthetic population and several scenarios will be considered.
- Oct 01, 2020 - Oct 01, 2021
- Sponsor: School of Architecture, Civil and Environmental Engineering (ENAC), École polytechnique fédérale de Lausanne
- Principal investigator: Janody Pougala
- Project manager: Janody Pougala
- Collaborator: Marija Kukic
Optimization of individual mobility plans to simulate future travel in Switzerland

This project, joint with Swiss Federal Railways (SBB) will develop a new activity-based modelling approach based on optimization of individual daily mobility plans. This approach will be implemented within SBB's existing nationwide model for Switzerland for investment and service planning decisions for future transportation.
- Sep 01, 2020 - Mar 01, 2022
- Sponsor: Innosuisse (Swiss Innovation Agency)
- Principal investigator: Michel Bierlaire
- Project manager: Tim Hillel
- Collaborators: Janody Pougala, Rico Krueger

2019

Activity based travel demand forecasting

This research project aims to update and improve the microscopic activity-based demand model developed and maintained by SBB. Specifically the research intends to address the following questions: 1. Ownership of mobility instruments: Which metrics and specifications can be added to the current model, in order to improve its ability to forecast mid-and long-term ownership of mobility instruments? More specifically, how can the notion of accessibility be integrated to the current model to capture more complex mode interactions? 2. Mode choice model: Can a tour-based approach be used to model mode choice? In addition, how can the processes to estimate destination and mode choice (currently nested) be combined to generate results that are consistent with observed mobility behaviors at different time horizons (short, mid, and long-term)? 3. Tour and activity generation: How can the generation of tours and activity patterns be combined to allow modelling of joint decisions?
- Mar 01, 2019 - Mar 01, 2020
- Sponsor: Swiss Federal Railways (SBB)
- Principal investigator: Michel Bierlaire
- Project manager: Tim Hillel
- Collaborator: Janody Pougala

EPFL courses

Fall 2023

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Evangelos Paschalidis, Nicola Ortelli, Janody Pougala, Cloe Cortes Balcells, Pavel Ilinov, Risa Kobayashi
- Webpage: https://moodle.epfl.ch/course/view.php?id=1001

Spring 2023

Introduction to Transportation Systems.
- Level: Bachelor
- Section: Civil Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Marija Kukic, Janody Pougala, Mengyi Wang

Spring 2022

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Tim Hillel, Nour Dougui
- Teaching assistants: Selin Atac, Janody Pougala, Marija Kukic, Negar Rezvany, Tom Haering

Fall 2021

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Virginie Lurkin
- Teaching assistants: Melvin Wong, Silvia Varotto, Nicola Ortelli, Janody Pougala, Rico Krueger, Tim Hillel
- Webpage: https://moodle.epfl.ch/course/view.php?id=1001

Spring 2021

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Tim Hillel, Nour Dougui
- Teaching assistants: Selin Atac, Janody Pougala, Marija Kukic, Negar Rezvany, Nicola Ortelli, Stefano Bortolomiol
- Webpage: https://transp-or.epfl.ch/courses/decisionAid2020/index.php

Fall 2020

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Melvin Wong, Rico Krueger, Janody Pougala, Nicola Ortelli, Meritxell Pacheco, Tim Hillel
- Webpage: https://moodle.epfl.ch/course/view.php?id=1001

Spring 2020

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Tim Hillel, Nour Dougui
- Teaching assistants: Stefano Bortolomiol, Gael Lederrey, Selin Atac, Janody Pougala
- Webpage: https://transp-or.epfl.ch/courses/decisionAid2020/index.php

Fall 2019

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Tim Hillel, Meritxell Pacheco, Janody Pougala, Nicola Ortelli
- Webpage: https://moodle.epfl.ch/course/view.php?id=1001

Various lectures

2023

Hierarchical Bayesian Estimation; Individual Prediction.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Feb 02, 2023
- Lecturer: Janody Pougala
- Assistants: Marija Kukic, Nicola Ortelli
Hybrid choice models.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Feb 01, 2023
- Lecturer: Nicola Ortelli
- Assistants: Tom Haering, Evangelos Paschalidis, Janody Pougala
Logit Mixtures; Combining Data (SP and RP).
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Jan 31, 2023
- Lecturer: Evangelos Paschalidis
- Assistants: Cloe Cortes Balcells, Janody Pougala, Negar Rezvany

2022

Logit Mixtures; Combining RP and SP data.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Mar 09, 2022
- Lecturer: Janody Pougala
- Assistants: Selin Atac, Silvia Varotto
Introduction; Logit Estimation and Testing.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Mar 07, 2022
- Lecturer: Cloe Cortes Balcells
- Assistants: Janody Pougala, Selin Atac, Negar Rezvany

2021

Logit Mixtures; Combining RP and SP data.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Feb 10, 2021
- Lecturer: Janody Pougala
- Assistant: Selin Atac
Nested Logit; Aggregate Forecasting.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Feb 09, 2021
- Lecturer: Selin Atac
- Assistant: Janody Pougala

Master theses

2023-2024

Modeling the Influence of Fear on Daily Activity Scheduling during a Pandemic through an Endogenous Choice Set Formation Approach., Dixit Sabharwal (Communication Systems)
- Supervision: Michel Bierlaire, Cloe Cortes Balcells, Janody Pougala
- External expert:

2023

Capturing dynamics in synthetic population, Salim Benchelabi (Mathematics)
- Supervision: Marija Kukic, Janody Pougala, Michel Bierlaire
- External expert: Antonin Danalet
Synthetic generation of activity motifs, Quentin Bochud (Civil Engineering)
- Supervision: Marija Kukic, Janody Pougala, Michel Bierlaire
- External expert: Gael Lederrey

2021-2022

Modélisation du réseau de transports publics genevois à la suite d'un événement réseau, Nicolas Richter (Civil Engineering)
- Supervision: Marija Kukic, Janody Pougala, Michel Bierlaire
- External expert: Antoine Stroh
Representing destination choice sets within activity-based models, Nicolas Salvadé (Civil Engineering)
- Supervision: Janody Pougala, Tom Haering, Tim Hillel
- External expert: Patrick Manser

2020

Feuille de route pour l'électrification du réseau de bus urbains de Lausanne à l'horizon 2030, Alain Azzi (Mechanical Engineering)
- Supervision: Nicola Ortelli, Janody Pougala, Michel Bierlaire
- External expert: Philippe Seydoux
Generating daily activity schedules using machine learning, Sergej Gasparovich (Civil Engineering)
- Supervision: Janody Pougala, Tim Hillel, Michel Bierlaire
- External expert: Antonin Danalet

Semester projects

2023-2024

Investigating latent behaviour in multiday activity scheduling, Honoka Shirai

Supervision: Janody Pougala, Negar Rezvany, Michel Bierlaire
In practice, most operational activity-based models have focused on single-day analyses. This common simplifying assumption significantly limits the models' behavioural realism, as they cannot adequately capture the dynamics and processes involved in the scheduling of activities over multiple days. Decisions taken daily are affected by both habits built over time and forward-looking behaviour, where individuals decide based on the expected outcomes of future decisions. A person's activity/travel planning behaviour depends on their behaviour on other days of the week and that there are two main components to this dynamic behaviour: 1. same-day and next-day substitution effects for activities and trips, and 2. latent propensity to engage in some activities or choose a specificc transportation mode. In this semester project, we investigate the existence of these components and how to integrate them into a multiday activity scheduler (OASIS). More specifically, we will attempt to model these unobserved influences in the context of a latent choice model.

2022-2023

Synthetic generation of activity motifs, Bochud Quentin Philippe (Civil Engineering)

Supervision: Marija Kukic, Janody Pougala, Michel Bierlaire
This project aims to work on the extension of the existing simulation framework (Kukic et al., 2021). In the existing methodology, we developed a new approach so-called Divide and Conquer Gibbs Sampler, for the generation of synthetic households. The current version of the framework can generate socio-demographic attributes of individuals (such as gender and age) grouped into households (described by their own set of features) in a realistic and representative way. However, in ABMs, there is a need to generate activities, not only socio-demographic characteristics. Some of the features that describe activities are type, location, start time, etc. However, as shown in the past, the simulation methods struggle to deliver accurate results in a reasonable time while dealing with high-dimensional datasets. According to that, instead of gener- ating disaggregated data on individuals� activities, it would be better to generate aggregated data while preserving the same amount of information. To do so, we will generate synthetic activity motifs. The daily activity motifs are representative graphs where the nodes describe the activity type and location, and the links indicate the sequential order between activities. The advantage of generating activity motifs instead of disaggregated activities is that we can reveal daily mobility patterns while saving computational time and preserving privacy. The first step is to retrieve and replicate the real activity motifs at the level of individu- als. The additional step would be to investigate how to generate the activity motifs of households depending on activities that individuals performed, subject to household constraints (e.g. sharing of resources). Note that the work of pre-study should be focused on the generation of activities that describe the movements of individuals. The investigation of activity motifs at the level of households can be part of the master thesis.

A model to capture ride-sharing behavior within the agents in a household, Mya Jamal Lahjouji (Civil Engineering)

Supervision: Negar Rezvany, Janody Pougala, Michel Bierlaire
Individuals do not schedule their day in isolation from other members of the household. There is interpersonal dependencies and intra-household interactions within household members which affect their daily schedules and travel patterns. Household car ownership, car availability limitation, joint activity participation, joint trips to joint activities, sharing of common household vehicles, and coordination of household daily rhythms are examples of these interpersonal dependencies. These interdependencies might have multiple reasons and can take multiple forms. Therefore, activity-based and travel demand models should incorporate and represent heterogeneous intra-household interactions in order to reflect reality. Focusing on joint rides, we can classify joint household tours into 3 categories: fully joint tours for shared activities, escorting tours, and synchronised activity tours. In this project, we focus on the third category; synchronised activity tours such as ride-sharing within household members. In this semester project, we will study the ride-sharing behavior within the members of a household. To this aim, we first do a literature review to see how the current studies tackle this matter and to identify the influential variables on the choice of ride-sharing or solo ride. We then develop a model to capture the choice of solo travel or shared ride with other agent(s) of the household considering various variables such as socio-economic characteristics of individuals and households, and activities attributes. We aim to study the ride-sharing behavior within the members of a household and capture the influential variables on the joint tours within a household. Finally, the student is expected to analyze and discuss the model results.

2022

A comparitive analysis of optimization algorithms for activity-based applications, Luca Bataillard (Computer science)

Supervision: Tom Haering, Janody Pougala, Michel Bierlaire
The starting point of this semester project is a Mixed Integer Linear Programming (MILP) optimization framework (Pougala et al, 2021), which simulates the scheduling of activities by considering that individuals try to optimize the utility (or satisfaction) they can gain from a given activity plan. Under a time budget constraint (e.g., 24h), the framework allows to integrate every spatio-temporal dimension of the activity-based paradigm (choice of activity participation, timing decisions, destination, mode, route...) simultaneously. The trade-offs occurring in the decision process are therefore captured explicitly. While the framework is functional, the MILP formulation proves to be limited when it comes to make it operational. Specifically, the dimension of the constraint space and the combinatorial nature of the problem significantly increases the computational time, often too high for practical use.The focus of the project is therefore on investigating a constraint programming approach, and its strengths and limitations compared to the MILP formulation. Constraint programming is a widely used optimization methodology, especially for scheduling applications, as the combinatorial nature of such problems suits the general framework of global constraints, domain filtering and constraint-propagation well. The main objective is to perform a comparative analysis of both optimization approaches on the given activity-based problems on selected case studies.

A discrete choice model to capture the relationship between activity type-location-modality choice of individuals, Jingran Su (Civil Engineering)

Supervision: Negar Rezvany, Janody Pougala, Michel Bierlaire
With the COVID-19 pandemic, the lifestyle and behavior of people have changed dramatically. Activities which were traditionally done out-of-home (such as work and education), are now more likely to take place in-home and remote working and studying has become an integral part of our lives. Capturing the relationship between activity type (work, study, sleep, shopping, personal care, household care, Leisure), activity location (in-home, out-of-home), and activity modality (virtual, physical) can be used to assess the tradeoff between in-home and out-of-home activities. In this semester project, we will study how the pandemic has impacted the location and activity mode choice (virtual, physical) of individuals. To this aim, we first do an analysis on the 2016-2020 UK Time Use Survey (TUS) data which encompass both pre- and during the Covid-19 pandemic daily diary data. The data analysis aims to determine the average activity duration and frequency of activity episodes per day by activity type, location, and device use. We will then develop discrete choice models to simulate the activity location (in-home, out-of-home) and modality (virtual, physical) for different activity categories (work, study, personal care, household care, shopping, leisure, sleep, organizational work). We aim to capture the preferences for virtual/physical activity participation of different activity types at specific locations. Finally, the student is expected to analyze and discuss the model results.

2021

Modeling Geneva's public transport network following disruption events, Nicolas Richter (Civil Engineering)

Supervision: Marija Kukic, Janody Pougala, Michel Bierlaire
The project is conducted in collaboration with the Transports Publics Genevois (TPG). The principal objective is to simulate the impact of disruptions (e.g. accidents) on the Geneva road network, and to optimize its resilience by proposing targeted and ecient intervention strategies. A particular emphasis will be put on the public transport network.

2020-2021

Generating choice sets of destinations for activity based applications, Nicolas Salvadé (Civil Engineering)

Supervision: Janody Pougala, Tim Hillel, Michel Bierlaire
Understanding human mobility behavior is essential to estimate and forecast transport demand. Activity-based models (ABM) are an increasingly popular approach to integrate complex behavioral dimensions influencing mobility choices, such as habits or social interactions. A signicant challenge in ABM research is the choice set for each individual (consisting of the type of activities, the schedules, the locations and the modes to reach them), which is highly combinatorial and thus impossible to fully enumerate. This pre-study will specically investigate the choice set of locations for individuals' daily activities, guided by (but not limited to) the following research questions: (1) How can we generate a plausible set of locations for an individual to consider, for each of their activities? (2) Which attributes can be used to characterize a location or a space (e.g. opening hours, public transport level of service, job density...) ? (3) What is the required granularity or scale to yield consistent results in terms of activity-based estimation, while maintaining a computational tractability ? (4) What are the data requirements for these tasks? What methods or tools can be used to augment datasets which lack this essential information ? The objective is to develop a methodology to generate a choice set of locations, by means of theoretical and data-driven approaches. The choice of location itself is not included in the scope of this project.

Generating choice sets of transport modes for activity based applications, Benoit Pahud (Civil Engineering)

Supervision: Janody Pougala, Tim Hillel, Michel Bierlaire
Understanding human mobility behavior is essential to estimate and forecast transport demand. Activity-based models (ABM) are an increasingly popular approach to integrate complex behav- ioral dimensions influencing mobility choices, such as habits or social interactions. A signicant challenge in ABM research is the choice set for each individual (consisting of the type of activities, the schedules, the locations and the modes to reach them), which is highlycombinatorial and thus impossible to fully enumerate. This pre-study will specically investigate the choice set of transport modes for individuals' daily activities, guided by (but not limited to) the following research questions: (1) How can we generate a plausible set of modes for an individual to consider, for each of their activities? (2) What are the main determinants for including/excluding a mode in the choice set? (3) What are the data requirements for these tasks? What methods or tools can be used to augment datasets which lack this essential information? The objective is to develop a methodology to generate a choice set of modes, by means of theoretical and data-driven approaches. The mode choice itself is not included in the scope of this project.

2019-2020

Tour-based mode choice modelling, Adrien Nicolet (Civil Engineering)

Supervision: Tim Hillel, Janody Pougala, Michel Bierlaire
This project will involve working with real world trip-diary data for London and/or Switzerland to develop sequential tour-based mode-choice models (i.e. where the choice of mode for a trip-leg is dependent on the full tour). The project will involve: � Extracting tour itineraries from the trip-diary data, � Investigating different tour patterns, e.g. primary return-tours, subtours, complex multilegged tours, � Defining different tour-based mode-choice situations which are able to fully represent the tour patterns existing in the data, � Developing appropriate sequential choice models for each mode-choice situation using Discrete Choice Models and/or machine learning.This project will involve working with real world trip-diary data for London and/or Switzerland to develop sequential tour-based mode-choice models (i.e. where the choice of mode for a trip-leg is dependent on the full tour). The project will involve: -Extracting tour itineraries from the trip-diary data, -Investigating different tour patterns, e.g. primary return-tours, subtours, complex multilegged tours, -Defining different tour-based mode-choice situations which are able to fully represent the tour patterns existing in the data, -Developing appropriate sequential choice models for each mode-choice situation using Discrete Choice Models and/or machine learning.

Investigating daily activity patterns, Sergey Gasparovich (Civil Engineering)

Supervision: Janody Pougala, Tim Hillel, Michel Bierlaire
This project will involve working with real world trip-diary data for Switzerland (2015 Mobility and Transport microcensus) to investigate how people schedule activities (e.g. work, lunch, sport, shopping etc) in their day. The project will involve: -Extracting and standardising daily activity schedules from the data, including representing the activity types, locations, start times, and durations with appropriate precision and/or scale, -Establishing a metric to define the similarity (or distance) between different activity schedules, -Using unsupervised machine learning (clustering) algorithms to identify prototypical activity schedules.

Personal webpage

Selin Atac

Selin Atac has been a member of the laboratory from Sep 01, 2018 to Jun 30, 2023

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Selin Atac.

Journal articles

2024

Obrenovic N., Atac S., Bierlaire M. (2024). Light electric vehicle sharing systems: Functional design of a comprehensive decision making solution. Transportation Research Part A: Policy and Practice 182 (104043)

The functional design of a decision support system for a state-of-the-art vehicle sharing system (VSS) inevitably includes the selection or definition of methodologies for planning and managing the observed VSS. In this paper, our focus is on an innovative VSS that utilizes light electric vehicles. Our goal is to specify the functions of a comprehensive decision making solution for such a VSS through a qualitative and systematic literature and system analysis. To achieve this goal, we rely on the holistic VSS management framework developed in our previous research. As a result of our study, we identify possible solution methodologies or algorithms for implementing functions of the designed decision making solution, and propose the necessary adjustments for their application in the case of light electric vehicles, or note any research gap. With these findings, we provide justified guidance to practitioners in creating these solutions, with the aim of reducing development time.
```
@Article{ObreAtacBier24,
  author = {Nikola Obrenovic and Selin Atac and Michel Bierlaire},
  title = {Light electric vehicle sharing systems: Functional design of a comprehensive decision making solution},
  journal = {Transportation Research Part A: Policy and Practice},
  year = {2024},
  volume = {182},
  number = {104043},
  DOI = {10.1016/j.tra.2024.104043},
  note = {Accepted on Mar 09, 2024}}}
```

2021

Atac S., Obrenovic N., Bierlaire M. (2021). Vehicle Sharing Systems: A Review and a Holistic Management Framework. EURO Journal on Transportation and Logistics 10 (100033)

Although different vehicle sharing systems (VSSs) use different vehicle types, the management challenges and optimization problems to be solved are similar or even the same. This observation led us to create a generalized and holistic VSS management framework, which aims to be applicable to the system using any vehicle type. The framework components, their mutual relationships, and framework tasks have been identified through a thorough and systematic literature review. Furthermore, the literature is positioned in the line with the framework. Finally, the framework and systematic literature review allowed us to identify gaps in the literature, and interesting research avenues.
```
@Article{AtacObreBier21,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {Vehicle Sharing Systems: A Review and a Holistic Management Framework},
  journal = {EURO Journal on Transportation and Logistics},
  year = {2021},
  volume = {10},
  number = {100033},
  DOI = {10.1016/j.ejtl.2021.100033},
  note = {Accepted on Feb 24, 2021}}}
```

Book chapters

2023


@InProceedings{AtacObreBier,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {A General Framework to Evaluate Different Rebalancing Operations Strategies in One-Way Car Sharing Systems},
  year = {2023},
  booktile = {Operations Research Proceedings 2022. OR 2022.},
  editor = {Grothe and  O. and  Nickel and  S. and  Rebennack and  S. and  Stein and  O.},
  series = {Lecture Notes in Operations Research},
  publisher = {Springer}}}

Obrenovic N., Atac S., Bortolomiol S., Brdar S., Marko O., Crnojevic V. (2023) The Crop Plant Scheduling Problem. In Cappanera, P., Lapucci, M., Schoen, F., Sciandrone, M., Tardella, F., Visintin, F. (ed) Optimization and Decision Science: Operations Research, Inclusion and Equity, Springer [ISBN 978-3-031-28862-3]


@InProceedings{ObreAtacBortBrdaMarkCrno23,
  author = {Nikola Obrenovic and Selin Atac and Stefano Bortolomiol and Sanja Brdar and Oskar Marko and Vladimir Crnojevic},
  title = {The Crop Plant Scheduling Problem},
  year = {2023},
  booktile = { Optimization and Decision Science: Operations Research, Inclusion and Equity},
  editor = {Cappanera and  P. and  Lapucci and  M. and  Schoen and  F. and  Sciandrone and  M. and  Tardella and  F. and  Visintin and  F.},
  volume = {9},
  series = {AIRO Springer Series},
  publisher = {Springer}}}

Articles in conference proceedings

2022


@InProceedings{ObrAtaBor_ItalianOR2022,
  author = {Nikola Obrenovic and Selin Atac and Stefano Bortolomiol and Sanja Brdar and Oskar Marko and Vladimir Crnojevic},
  title = {The crop plant scheduling problem},
  booktime = {Proceedings of the Italian OR Days 2022 (GOR), 30 August-02 September},
  year = {2022},
  address = {Florence, Italy}}}


@InProceedings{AtaObrBie_GermanOR2022_v0,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {A general framework to evaluate different rebalancing operations strategies in one-way car sharing systems},
  booktime = {Proceedings of the  International Conference on Operations Research (OR 2022), 06-09 September},
  year = {2022},
  address = {Karlsruhe, Germany}}}


@InProceedings{AtaObrBie_STRC2022,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {Evaluating different strategies to solve rebalancing operations in car sharing systems},
  booktime = {Proceedings of the 22nd Swiss Transport Research Conference (STRC), 18-20 May},
  year = {2022},
  address = {Ascona, Switzerland}}}

2021


@InProceedings{AtaObrBie_STRC2021,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {A multi-objective approach for station clustering in bike sharing systems},
  booktime = {Proceedings of the 21st Swiss Transport Research Conference (STRC), 12-14 September},
  year = {2021},
  address = {Ascona, Switzerland}}}

2020


@InProceedings{AtaObrBie_hEART2020,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {Bike Sharing Systems: Does demand forecasting yield a better service?},
  booktime = {Proceedings of the 9th Symposium of the European Association for Research in Transportation (hEART), 3-4 February 2021},
  year = {2020},
  address = {Lyon, France}}}


@InProceedings{AtaObrBie_STRC2020,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {Vehicle sharing systems: Does demand forecasting yield a better service?},
  booktime = {Proceedings of the 20th Swiss Transport Research Conference (STRC), 13-14 May},
  year = {2020},
  address = {Ascona, Switzerland}}}

2019


@InProceedings{AtaObrBie_ADBIS2019,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {A holistic decision making framework for a vehicle sharing system},
  booktime = {Proceedings of the 23rd European Conference on Advances in Databases and Information Systems (ADBIS), 08-11 September},
  year = {2019},
  address = {Bled, Slovenia}}}


@InProceedings{AtaObrBie_STRC2019,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {An optimization framework for light electric vehicle sharing systems},
  booktime = {Proceedings of the 19th Swiss Transport Research Conference (STRC), 15-17 May},
  year = {2019},
  address = {Ascona, Switzerland}}}

Talks

2022

Atac S., Obrenovic N., Bierlaire M. A general framework to evaluate different rebalancing operations strategies in one-way car sharing systems September 07, 2022. German OR Days 2022 (GOR 2022), Karlsruhe, Germany.


@Misc{Atac_GermanOR2022,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {A general framework to evaluate different rebalancing operations strategies in one-way car sharing systems},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Atac_GermanOR2022.pdf}},
  year = {2022},
  note = {Presented at German OR Days 2022 (GOR 2022), Karlsruhe, Germany}}}

Atac S., Obrenovic N., Bierlaire M. Evaluation of demand forecasting in bike sharing systems: A general framework and selected case studies June 23, 2022. 11th Triennial Symposium on Transportation Analysis (TRISTAN XI), Mauritius.


@Misc{Atac_TRISTAN2022,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {Evaluation of demand forecasting in bike sharing systems: A general framework and selected case studies},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Atac_TRISTAN2022.pdf}},
  year = {2022},
  note = {Presented at 11th Triennial Symposium on Transportation Analysis (TRISTAN XI), Mauritius}}}

Atac S., Obrenovic N., Bierlaire M. Comparing different rebalancing operations strategies in car sharing systems: A generic optimization framework June 03, 2022. 18th Swiss Operations Research Days, Zurich University of Applied Sciences (ZHAW), Winterthur, Switzerland.


@Misc{Atac_SwissOR2022,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {Comparing different rebalancing operations strategies in car sharing systems: A generic optimization framework},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Atac_SwissOR2022.pdf}},
  year = {2022},
  note = {Presented at 18th Swiss Operations Research Days, Zurich University of Applied Sciences (ZHAW), Winterthur, Switzerland}}}

Atac S., Obrenovic N., Bierlaire M. Evaluating different strategies to solve rebalancing operations in car sharing systems May 19, 2022. 22nd Swiss Transport Research Conference (STRC), Monte Verità, Ascona, Switzerland.


@Misc{Atac_STRC2022,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {Evaluating different strategies to solve rebalancing operations in car sharing systems},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Atac_STRC2022.pdf}},
  year = {2022},
  note = {Presented at 22nd Swiss Transport Research Conference (STRC), Monte Verit\à, Ascona, Switzerland}}}

2021

Atac S., Obrenovic N., Bierlaire M. Designing a MATSim environment for a one-way car sharing system as a transport mode October 27, 2021. INFORMS Annual Meeting 2021, Anaheim, California, USA.


@Misc{Atac_INFORMS2021,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {Designing a MATSim environment for a one-way car sharing system as a transport mode},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Atac_INFORMS2021.pdf}},
  year = {2021},
  note = {Presented at INFORMS Annual Meeting 2021, Anaheim, California, USA}}}

Atac S., Obrenovic N., Bierlaire M. Demand-based operations of vehicle sharing systems October 15, 2021. Seminar at the C2SMART Lab, New York University, New York City, New York, US.


@Misc{Atac_C2SMART2021,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {Demand-based operations of vehicle sharing systems},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Atac_C2SMART2021.pdf}},
  year = {2021},
  note = {Presented at Seminar at the C2SMART Lab, New York University, New York City, New York, US}}}

Atac S., Obrenovic N., Bierlaire M. A multi-objective approach for station clustering in bike sharing systems September 14, 2021. 21st Swiss Transport Research Conference (STRC), Monte Verità, Ascona, Switzerland.


@Misc{Atac_STRC2021,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {A multi-objective approach for station clustering in bike sharing systems},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Atac_STRC2021.pdf}},
  year = {2021},
  note = {Presented at 21st Swiss Transport Research Conference (STRC), Monte Verit\à, Ascona, Switzerland}}}

2020

Atac S., Obrenovic N., Bierlaire M. Vehicle sharing systems: Does demand forecasting yield a better service? May 13, 2020. 20th Swiss Transport Research Conference (STRC), Monte Verità, Ascona, Switzerland.


@Misc{Atac_STRC2020,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {Vehicle sharing systems: Does demand forecasting yield a better service?},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Atac_STRC2020.pdf}},
  year = {2020},
  note = {Presented at 20th Swiss Transport Research Conference (STRC), Monte Verit\à, Ascona, Switzerland}}}

2019

Atac S., Obrenovic N., Bierlaire M. A new framework for a vehicle sharing system September 04, 2019. German OR days 2019, Technische Universität Dresden, Dresden, Germany.


@Misc{Atac_GermanOR2019,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {A new framework for a vehicle sharing system},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Atac_GermanOR2019.pdf}},
  year = {2019},
  note = {Presented at German OR days 2019, Technische Universit\ät Dresden, Dresden, Germany}}}

Atac S., Obrenovic N., Bierlaire M. An optimization framework for a light electric vehicle sharing system June 24, 2019. EURO 2019, University College Dublin, Dublin, Ireland.


@Misc{Atac_EURO2019,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {An optimization framework for a light electric vehicle sharing system},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Atac_EURO2019.pdf}},
  year = {2019},
  note = {Presented at EURO 2019, University College Dublin, Dublin, Ireland}}}

Atac S., Obrenovic N., Bierlaire M. A framework for a vehicle sharing system June 07, 2019. 17th Swiss Operations Research Days, University of Lausanne (UNIL), Lausanne, Switzerland.


@Misc{Atac_SwissOR2019,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {A framework for a vehicle sharing system},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Atac_SwissOR2019.pdf}},
  year = {2019},
  note = {Presented at 17th Swiss Operations Research Days, University of Lausanne (UNIL), Lausanne, Switzerland}}}

Atac S., Obrenovic N., Bierlaire M. An optimization framework for a light electric vehicle sharing system May 17, 2019. 19th Swiss Transport Research Conference (STRC), Monte Verità, Ascona, Switzerland.


@Misc{Atac_STRC2019,
  author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
  title = {An optimization framework for a light electric vehicle sharing system},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Atac_STRC2019.pdf}},
  year = {2019},
  note = {Presented at 19th Swiss Transport Research Conference (STRC), Monte Verit\à, Ascona, Switzerland}}}

Awards

2021

Selin Atac. PhD mobility award 2021, Doctoral School Civil and Environmental Engineering (EDCE).
The PhD Mobility Award is given by the doctoral program in Civil and Environmental Engineering (EDCE) to encourage good PhD students within the program to go for an academic visit to an external research institution..

Reviewing

EPFL courses

Spring 2023

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Fabian Torres, Evangelos Paschalidis
- Teaching assistants: Selin Atac, Tom Haering
Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Cloe Cortes Balcells, Selin Atac
- Webpage: http://transp-or.epfl.ch/courses/OptSim2023

Fall 2022

Introduction to optimization and operations research .
- Level: Bachelor
- Sections: Mechanical Engineering, Civil Engineering, Environmental Sciences and Engineering, Electrical and Electronics Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Fabian Torres, Selin Atac, Marija Kukic, Negar Rezvany

Spring 2022

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Tim Hillel, Nour Dougui
- Teaching assistants: Selin Atac, Janody Pougala, Marija Kukic, Negar Rezvany, Tom Haering
Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Silvia Varotto, Selin Atac, Cloe Cortes Balcells
- Webpage: http://transp-or.epfl.ch/courses/OptSim2022

Spring 2021

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Tim Hillel, Nour Dougui
- Teaching assistants: Selin Atac, Janody Pougala, Marija Kukic, Negar Rezvany, Nicola Ortelli, Stefano Bortolomiol
- Webpage: https://transp-or.epfl.ch/courses/decisionAid2020/index.php

Fall 2020

Introduction to optimization and operations research .
- Level: Bachelor
- Sections: Mechanical Engineering, Civil Engineering, Environmental Sciences and Engineering, Electrical and Electronics Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Nour Dougui, Selin Atac, Stefano Bortolomiol, Marija Kukic, None None, Gael Lederrey, Cloe Cortes Balcells, Negar Rezvany

Spring 2020

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Tim Hillel, Nour Dougui
- Teaching assistants: Stefano Bortolomiol, Gael Lederrey, Selin Atac, Janody Pougala
- Webpage: https://transp-or.epfl.ch/courses/decisionAid2020/index.php

Fall 2019

Introduction to optimization and operations research .
- Level: Bachelor
- Sections: Mechanical Engineering, Civil Engineering, Environmental Sciences and Engineering, Electrical and Electronics Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Nour Dougui, Selin Atac, Stefano Bortolomiol, Nicholas Molyneaux, Gael Lederrey
- Webpage: https://moodle.epfl.ch/course/view.php?id=14491

Spring 2019

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Nikola Obrenovic, Tim Hillel
- Teaching assistants: Stefano Bortolomiol, Gael Lederrey, Selin Atac
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2019/index.php

Fall 2018

Introduction � l'optimisation et � la recherche op�rationnelle.
- Level: Bachelor
- Sections: Mechanical Engineering, Civil Engineering, Environmental Sciences and Engineering, Electrical and Electronics Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Nikola Obrenovic, Nour Dougui, Stefano Bortolomiol, Selin Atac, Gael Lederrey
- Webpage: http://transp-or.epfl.ch/courses/optimization2018/

Various lectures

2023

Nested logit; Aggregate forecasting.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Jan 30, 2023
- Lecturer: Cloe Cortes Balcells
- Assistants: Selin Atac, Tom Haering, Negar Rezvany

2022

Hybrid Choice Models.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Mar 11, 2022
- Lecturer: Silvia Varotto
- Assistants: Cloe Cortes Balcells, Selin Atac
Logit Mixtures; Combining RP and SP data.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Mar 09, 2022
- Lecturer: Janody Pougala
- Assistants: Selin Atac, Silvia Varotto
Nested Logit; Aggregate Forecasting.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Mar 08, 2022
- Lecturer: Selin Atac
- Assistants: Cloe Cortes Balcells, Tom Haering
Introduction; Logit Estimation and Testing.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Mar 07, 2022
- Lecturer: Cloe Cortes Balcells
- Assistants: Janody Pougala, Selin Atac, Negar Rezvany

2021

Logit Mixtures; Combining RP and SP data.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Feb 10, 2021
- Lecturer: Janody Pougala
- Assistant: Selin Atac
Nested Logit; Aggregate Forecasting.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Feb 09, 2021
- Lecturer: Selin Atac
- Assistant: Janody Pougala

2019

Bayesian Estimation; Individual Prediction.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Mar 27, 2019
- Lecturer: Rico Krueger
- Assistants: Tim Hillel, Selin Atac, Meritxell Pacheco
Nested Logit; Aggregate Forecasting.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Mar 25, 2019
- Lecturer: Selin Atac
- Assistants: Meritxell Pacheco, Yuki Oyama, Tim Hillel
Introduction; Logit Estimation; Specification Testing.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Mar 24, 2019
- Lecturer: Tim Hillel
- Assistants: Meritxell Pacheco, Yuki Oyama, Selin Atac

Master theses

2019

Warehouse inventory management optimization in Rolex SA, Rym Karime (Civil Engineering)
- Supervision: Nikola Obrenovic, Selin Atac, Michel Bierlaire
- External expert: Bruno Delaborde

2018-2019

Innovative technologies for improvement of airport accessibility with the applications to Geneva Airport, Thibaut Guillaume Marie Richard (Civil Engineering)
- Supervision: Nikola Obrenovic, Selin Atac, Michel Bierlaire
- External expert: Philippe Canal, Virginie Marche

Semester projects

2023

A detailed evaluation of the Via Sicura program, Mya Jamal Lahjouji (Civil Engineering)

Supervision: Nicola Ortelli, Selin Atac, Michel Bierlaire
This project aims at updating and improving the official evaluation of the Via Sicura road safety program.

2022-2023

Scenario generation for the multi-agent transport simulation toolkit, MATSim, Anne-Valerie Preto (Civil Engineering)

Supervision: Selin Atac, Nicola Ortelli, Michel Bierlaire
CSSs are becoming increasingly popular, primarily due to their financial and environmental advantages. However, they face many operational challenges, including inventory management of vehicles and parking spots, vehicle load balancing and redistribution, pricing strategies, and demand forecasting. If these challenges are not addressed properly, the CSS risks experiencing a significant loss of customers and therefore revenue. The literature consists of variety of works on CSSs especially focused on the rebalancing operations. On the other hand, it lacks the detailed comparison of different strategies of rebalancing operations at a disaggregate level. One approach to fill this gap is using an agent-based transport simulation. Such simulation toolkits allow analysis at the individual level and testing different configurations such as city and network structure. Therefore, in this study the student will review the literature to determine the main characteristics of the CSSs. In the first part of the project, she will work on creating representative scenarios for the multi-agent transport simulation toolkit, MATSim, based on the findings in the literature. These scenarios will be used to compare different rebalancing operations strategies where an optimization module is used. The second part of the project will be implementing analysis scripts that will provide useful information on the simulation results.

2022

Heuristic applications for rebalancing operations in one-way car sharing systems, Miguel Chastre Rodrigues[Internship]

Supervision: Selin Atac, Michel Bierlaire
CSSs are becoming increasingly popular, primarily due to their financial and environmental advantages. However, they face many operational challenges, including inventory management of vehicles and parking spots, vehicle load balancing and redistribution, pricing strategies, and demand forecasting. If these challenges are not addressed properly, the CSS risks experiencing a significant loss of customers and therefore revenue. The literature consists of variety of works on CSSs especially focused on the rebalancing operations. On the other hand, it lacks the detailed comparison of different strategies of rebalancing operations at a disaggregate level. One approach to fill this gap is using an agent-based transport simulation. Such simulation toolkits allow analysis at the individual level and testing different configurations such as city and network structure. Therefore, in this study the student will review the literature to determine two rebalancing strategies existing in CSSs. The student will then focus on developing heuristic algorithms to solve these problems as they are computationally expensive to solve with exact methods.

Comparing rebalancing operations in car sharing systems, Xinling Li (Civil Engineering)

Supervision: Selin Atac, Nicola Ortelli, Michel Bierlaire
A car sharing system (CSS) offers users to rent cars for a short period of time. The users are identified by an RFID card or through a mobile application. The price of the trip is generally determined according to trip duration and length. One of the challenges faced in such systems is the imbalance of the vehicles throughout the city. This problem is solved by forecasting the demand and rebalancing the vehicles to meet user demand. First, the student is going to review the literature related to rebalancing operations in CSSs. Then, she will design and/or implement different rebalancing strategies in order to test the effects of different characteristics of the city/region. In other words, different strategies (static, reactive, and proactive) for rebalancing operations will be tested for each scenario and the results will be used to drive to conclusions which explain the relation between the city structure, demand structure and the different strategies of rebalancing operations.

2021

Designing and implementing rebalancing operations in car sharing systems using MATSim, Alfio Simone Mosset (Civil Engineering)

Supervision: Selin Atac, Stefano Bortolomiol, Michel Bierlaire
In this project, we will focus on Vehicle sharing systems (VSSs). VSSs are becoming increasingly popular, primarily due to their financial and environmental advantages. However, they face many operational challenges, including inventory management of vehicles and parking spots, vehicle load balancing and redistribution, pricing strategies, and demand forecasting. If these challenges are not addressed properly, the VSS risks experiencing a significant loss of customers and therefore revenue. The literature consists of variety of works on VSSs especially focused on the rebalancing operations. On the other hand, the literature lacks the demand forecasting dimension of the VSSs since it is exhausting to collect the data to develop a demand model. This project will aim to address this problem in a different way. Instead of developing a demand model, we aim to simulate the demand structure using an open-source software MATSim (Multi-Agent Transport Simulation Toolkit). The student is expected to develop an environment in MATSim for a car sharing system (CSS) where the census data is used. Then, he will create different scenarios in order to test the effects of different characteristics of the city/region. She will then identify the cases in which the rebalancing operations are needed. The implementation of rebalancing operations will be adapted from the free floating application of MATSim. In other words, different strategies (static, reactive, and proactive) for rebalancing operations will be tested for each scenario and the results will be used to drive to conclusions which explain the relation between the city structure, demand structure and the different strategies of rebalancing operations.

2020-2021

Designing a MATSim environment for a vehicle sharing system as a transport mode, Paula Vogg (Civil Engineering)

Supervision: Selin Atac, Cloe Cortes Balcells, Michel Bierlaire
A vehicle sharing system (VSS) offers users to rent vehicles for a short period of time. The price of the trip is generally determined according to trip duration and length. These systems are becoming increasingly popular, primarily due to their financial and environmental advantages. However, VSSs face many operational challenges, including inventory management of vehicles and parking spots, vehicle load balancing and redistribution, pricing strategies, and demand forecasting. If these challenges are not addressed properly, the VSS risks experiencing a significant loss of customers and revenue. One of the challenges faced in such systems is the imbalance of the vehicles throughout the city. This problem is solved by forecasting the demand and rebalancing the vehicles to meet user demand. However, since it is exhausting to collect the data to develop a demand model, this project will make use of the Multi-Agent Transport Simulation Toolkit (MATSim) to build this environment. First, the student is going to review the literature related to VSSs and get familiar with MATSim software. The student is expected to develop an environment in MATSim for a VSS where the census data is used and the VSS is the only transport mode in the city other than walking. Then, she will create different scenarios in order to test the effects of different characteristics of the city/region. She will then identify the cases in which the rebalancing operations are needed. In other words, different strategies (static, reactive, and proactive) for rebalancing operations will be tested for each scenario and the results will be used to drive to conclusions which explain the relation between the city structure, demand structure and the different strategies of rebalancing operations.

2020

Optimizing Organizational Chart using local search method, Hugo Bocquet

Supervision: Nour Dougui, Selin Atac, Michel Bierlaire
The aim of this project is to produce a near optimal Organisational Chart for a real case study. This Organisational Chart should optimize the span of control of Management in the company by maximizing a coverage metric using clearly-dened manipulations of the organizational design. To achieve this goal a local search method will be used and the results should be compared to those given by an exact method (Simplex). We will in a rst phase apply the optimization method to a small sample of Organisational Chart without considering the role of the employees. In a second phase, the role of the employees should be considered and a larger Organisational Chart should be considered.

Optimal regulation of oligopolistic markets with discrete choice models of demand, Elodie Duliscouet, Paulin Raison, Yahya Basiouny (Mechanical Engineering)

Supervision: Stefano Bortolomiol, Selin Atac, Michel Bierlaire
This project is inspired by the ongoing research project titled 'New generation of demand-supply interaction models', funded by the Swiss National Science Foundation. In particular, the project aims at studying models to find optimal policies to regulate markets characterized by oligopolistic competition and in which consumers make a discrete choice among a finite set of alternatives. In this framework, consumers are modelled as utility maximizers, according to random utility theory. Suppliers are modelled as profit maximizers, according to the traditional microeconomic treatment. Market competition is modelled as a non-cooperative game, for which an epsilon-equilibrium solution is sought. Finally, the regulator can affect the behavior of all other agents, for instance by giving subsidies or imposing taxes. In transport markets, these interventions might target specific alternatives, to reduce externalities such as congestion or emissions, or specific segments of the population, to achieve social welfare objectives. The objective of the project is to analyze, implement and evaluate algorithms to solve realistic applications of this problem, with particular focus on the transportation sector.

2019-2020

Analysis of the value of demand forecasting within vehicle sharing systems, Jasso Espadaler (Civil Engineering)

Supervision: Selin Atac, Stefano Bortolomiol, Michel Bierlaire
Vehicle sharing systems (VSSs) are becoming increasingly popular, primarily due to their financial and environmental advantages. However, VSSs face many operational challenges, including inventory management of vehicles and parking spots, vehicle load balancing and redistribution, pricing strategies, and demand forecasting. If these challenges are not addressed properly, the VSS risks experiencing a significant loss of customers and revenue. Recently, new VSSs have been introduced which use light electric vehicles (LEVs). These systems face a number of unique challenges. For instance, demand forecasting for LEV sharing systems is more complex, as locations are not fixed and journeys can start and end at any allowable location. LEV sharing systems also serve a higher portion of the population since these type of vehicles do not require a driving license. As such, the existing techniques for analysing VSSs are not sufficient for these new systems. To address this need, one needs to forecast the future demand of this novel transportation mode. Since it is exhausting to collect the data to develop a demand model, this project will aim to identify the value of a demand model by using mathematical models tailored for rebalancing operations from the literature and simulations. As LEV systems are still in their infancy, data describing them is not yet available. Therefore, the student will use alternative data, including PubliBike bike-sharing system data, accounting for any potential differences in the analysis. Based on the findings from the literature, the student will analyse different mathematical models.

2019

Demand forecasting for a novel transportation mode, Denis Steffen (Mathematics)

Supervision: Selin Atac, Tim Hillel, Michel Bierlaire
The vehicle sharing systems (VSSs) are becoming more and more popular due to both economic and environmental effects. However, these systems mainly focus on two specific types of vehicles: bicycles and cars. Recently, some other types of vehicles (e.g. light electric vehicles) with some specific properties that distinguish them from cars and bicycles are introduced for use in such kind of systems. Therefore, they lack research in each component of the framework. The aim of this project is to forecast the demand for a novel transportation mode. The student should survey different types of approaches, such as ARIMA, to forecast demand in similar systems and compare them by identifying performance measures. Since the data for this specific transportation mode does not exist yet the student will be directed to use the taxi data, which shares many properties with the system of interest.

2018-2019

Railway infrastructure maintenance, Ludovica Sessa and Robert Abboud (Management of Technology and Financial Engineering)

Supervision: Stefano Bortolomiol, Selin Atac, Michel Bierlaire
Following this summer tragedy in Genoa, Italy, European states and governments became more aware of the importance of keeping their countries� infrastructure modern and maintained. This interdisciplinary project will particularly focus on the topic of railway infrastructure maintenance and will cover some legal, economic, social, political aspects related to this socio-economic problem. The goal of this project is to study the topic of railway infrastructure maintenance from two perspectives. Initially, a qualitative analysis will be performed to precisely define the scope of the research and the main factors that affect the planning of investments to maintain railways infrastructures. Based on the findings of the qualitative analysis, the students will then critically analyze existing mathematical models that generate maintenance schedules and optimal railway investments, and will propose a framework which will be applied on a real-life case study.

Alexis Gumy

Alexis Gumy is phd graduate, member of the laboratory since Jul 01, 2018

Personal webpage

Stefano Bortolomiol

Stefano Bortolomiol has been a member of the laboratory from Nov 01, 2017 to Feb 28, 2022

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Stefano Bortolomiol.

Journal articles

2021

Bortolomiol S., Lurkin V., Bierlaire M. (2021). Price-based regulation of oligopolistic markets under discrete choice models of demand . Transportation


@Article{BortLurkBier21b,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {Price-based regulation of oligopolistic markets under discrete choice models of demand },
  journal = {Transportation},
  year = {2021},
  DOI = {https://doi.org/10.1007/s11116-021-10217-0},
  note = {Accepted on Jul 23, 2021}}}

Bortolomiol S., Lurkin V., Bierlaire M. (2021). A simulation-based heuristic to find approximate equilibria with disaggregate demand models. Transportation Science 55 (5):1025-1045


@Article{BortLurkBier21,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {A simulation-based heuristic to find approximate equilibria with disaggregate demand models},
  journal = {Transportation Science},
  year = {2021},
  volume = {55},
  number = {5},
  pages = {1025-1045},
  DOI = {https://doi.org/10.1287/trsc.2021.1071},
  note = {Accepted on Apr 16, 2021}}}

Book chapters

2023


@InProceedings{ObreAtacBortBrdaMarkCrno23,
  author = {Nikola Obrenovic and Selin Atac and Stefano Bortolomiol and Sanja Brdar and Oskar Marko and Vladimir Crnojevic},
  title = {The Crop Plant Scheduling Problem},
  year = {2023},
  booktile = { Optimization and Decision Science: Operations Research, Inclusion and Equity},
  editor = {Cappanera and  P. and  Lapucci and  M. and  Schoen and  F. and  Sciandrone and  M. and  Tardella and  F. and  Visintin and  F.},
  volume = {9},
  series = {AIRO Springer Series},
  publisher = {Springer}}}

Technical reports

2021

Bortolomiol S., Lurkin V., Bierlaire M. (2021). Price-based regulation of oligopolistic markets under discrete choice models of demand. Report TRANSP-OR 210127


@TechReport{BorLurBie2021,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {Price-based regulation of oligopolistic markets under discrete choice models of demand},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2021},
  type = {Technical Report},
  number = {TRANSP-OR 210127},
  address = {Lausanne, Switzerland}}}

2019

Bortolomiol S., Lurkin V., Bierlaire M. (2019). A disaggregate choice-based approach to find epsilon-equilibria of oligopolistic markets. Report TRANSP-OR 191107


@TechReport{BorLurBie2019,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {A disaggregate choice-based approach to find epsilon-equilibria of oligopolistic markets},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2019},
  type = {Technical Report},
  number = {TRANSP-OR 191107},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2022


@InProceedings{ObrAtaBor_ItalianOR2022,
  author = {Nikola Obrenovic and Selin Atac and Stefano Bortolomiol and Sanja Brdar and Oskar Marko and Vladimir Crnojevic},
  title = {The crop plant scheduling problem},
  booktime = {Proceedings of the Italian OR Days 2022 (GOR), 30 August-02 September},
  year = {2022},
  address = {Florence, Italy}}}

2021


@InProceedings{BorLurBieBon_STRC2021,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {Benders decomposition for choice-based optimization problems with discrete upper-level variables},
  booktime = {Proceedings of the 21st Swiss Transport Research Conference (STRC), 12-14 September},
  year = {2021},
  address = {, }}}

2020


@InProceedings{BorLurBie_STRC2020,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {Optimal regulation of oligopolistic markets under discrete choice models of demand},
  booktime = {Proceedings of the 20th Swiss Transport Research Conference (STRC), 13-15 May},
  year = {2020},
  address = {, }}}

2019


@InProceedings{BorLurBie_STRC2019,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {A demand-based optimization approach to find market equilibria in oligopolies},
  booktime = {Proceedings of the 19th Swiss Transport Research Conference (STRC), 15-17 May},
  year = {2019},
  address = {Ascona, Switzerland}}}

2018


@InProceedings{BorLurBie_STRC2018,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {Modelling competition in demand-based optimization models},
  booktime = {Proceedings of the 18th Swiss Transport Research Conference (STRC), 16-18 May},
  year = {2018},
  address = {Ascona, Switzerland}}}

Talks

2021

Bortolomiol S., Lurkin V., Bierlaire M. Benders decomposition for choice-based optimization problems with discrete upper-level variables September 14, 2021. 21st Swiss Transport Research Conference, Ascona, Switzerland.


@Misc{Borto2021_STRC,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {Benders decomposition for choice-based optimization problems with discrete upper-level variables},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Borto2021_STRC.pdf}},
  year = {2021},
  note = {Presented at 21st Swiss Transport Research Conference, Ascona, Switzerland}}}

Bortolomiol S., Lurkin V., Bierlaire M. A Benders decomposition approach for the choice-based uncapacitated facility location and pricing problem July 19, 2021. 7th INFORMS Transportation Science and Logistics Society Workshop, Erasmus School of Economics, Online.


@Misc{Borto2021_TSL,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {A Benders decomposition approach for the choice-based uncapacitated facility location and pricing problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Borto2021_TSL.pdf}},
  year = {2021},
  note = {Presented at 7th INFORMS Transportation Science and Logistics Society Workshop, Erasmus School of Economics, Online}}}

2019

Bortolomiol S., Lurkin V., Bierlaire M. A demand-based optimization approach to find market equilibria in oligopolies September 05, 2019. 8th Symposium of the European Association for Research in Transportation, Budapest University of Technology and Economics, Budapest, Hungary.


@Misc{Borto2019_hEART,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {A demand-based optimization approach to find market equilibria in oligopolies},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Borto2019_hEART.pdf}},
  year = {2019},
  note = {Presented at 8th Symposium of the European Association for Research in Transportation, Budapest University of Technology and Economics, Budapest, Hungary}}}

Bortolomiol S., Lurkin V., Bierlaire M. An algorithmic framework to find market equilibria in oligopolies using demand-based optimization models August 28, 2019. Revenue Management and Pricing Workshop, Erasmus University Rotterdam, Rotterdam, Netherlands.


@Misc{Borto2019_RevMan,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {An algorithmic framework to find market equilibria in oligopolies using demand-based optimization models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Borto2019_RevMan.pdf}},
  year = {2019},
  note = {Presented at Revenue Management and Pricing Workshop, Erasmus University Rotterdam, Rotterdam, Netherlands}}}

Bortolomiol S., Lurkin V., Bierlaire M. A demand-based optimization approach to model oligopolistic competition June 17, 2019. 10th Triennial Symposium on Transportation Analysis (TRISTAN), Hamilton Island, Australia.


@Misc{Borto2019_TRISTAN,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {A demand-based optimization approach to model oligopolistic competition},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Borto2019_TRISTAN.pdf}},
  year = {2019},
  note = {Presented at 10th Triennial Symposium on Transportation Analysis (TRISTAN), Hamilton Island, Australia}}}

Bortolomiol S., Lurkin V., Bierlaire M. A demand-based optimization approach to find market equilibria in oligopolies May 15, 2019. 19th Swiss Transport Research Conference (STRC), Monte Verità, Ascona, Switzerland.


@Misc{Borto2019_STRC,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {A demand-based optimization approach

to find market equilibria in oligopolies},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Borto2019_STRC.pdf}},
  year = {2019},
  note = {Presented at 19th Swiss Transport Research Conference (STRC), Monte Verit\à, Ascona, Switzerland}}}

Bortolomiol S., Lurkin V., Bierlaire M. Modelling competitive markets within a demand-based optimization framework March 29, 2019. Third AIROYoung Workshop, Sapienza University of Rome, Rome, Italy.


@Misc{Borto2019_AIROYoung,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {Modelling competitive markets within a demand-based optimization framework},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Borto2019_AIROYoung.pdf}},
  year = {2019},
  note = {Presented at Third AIROYoung Workshop, Sapienza University of Rome, Rome, Italy}}}

2018

Bortolomiol S., Lurkin V., Bierlaire M. Modelling competition in demand-based optimization models September 14, 2018. International Conference on Operations Research, Université libre de Bruxelles, Brussels, Belgium.


@Misc{Borto2018_OR,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {Modelling competition in demand-based optimization models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Borto2018_OR.pdf}},
  year = {2018},
  note = {Presented at International Conference on Operations Research, Universit\é libre de Bruxelles, Brussels, Belgium}}}

Bortolomiol S., Lurkin V., Bierlaire M. Modelling competition in demand-based optimization models June 12, 2018. 16th Swiss Operations Research Days, Universität Bern, Bern, Switzerland.


@Misc{Borto2018_SwissOR,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {Modelling competition in demand-based optimization models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Borto2018_SwissOR.pdf}},
  year = {2018},
  note = {Presented at 16th Swiss Operations Research Days, Universit\ät Bern, Bern, Switzerland}}}

Bortolomiol S., Lurkin V., Bierlaire M. Modelling competition in demand-based optimization models May 17, 2018. 18th Swiss Transport Research Conference (STRC), , Monte Verità, Ascona, Switzerland.


@Misc{Borto2018_STRC,
  author = {Stefano Bortolomiol and Virginie Lurkin and Michel Bierlaire},
  title = {Modelling competition in demand-based optimization models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Borto2018_STRC.pdf}},
  year = {2018},
  note = {Presented at 18th Swiss Transport Research Conference (STRC), , Monte Verit\à, Ascona, Switzerland}}}

Reviewing

Research projects

2017

Incorporating competitors' behavior in demand based optimization models

The starting point of this research project is the general framework developed in the SNF research project 200021_165636 entitled �Incorporating advanced behavioral models in mixed integer linear optimization�. The project aims at formulating explicitly the complex interaction between the supply and demand actors. We hypothesize that the decisions of supply actors (such as capacity, assortment, and price) are highly influenced by the decisions of other actors, through competition within the market. In this project, we will therefore explicitly consider multiple operators that compete for the same pool of customers. Each operator will take the supply-side decisions that optimize its performance function (e.g., maximization of revenue). Non-cooperative game theory is commonly used to model such oligopolistic competition. We plan to investigate how to integrate these games in the already developed framework. In this context, the objective will be to analyze the concept of equilibrium, that is, stationary states of the system where no actor has an incentive to change his/her decisions.
- Nov 01, 2017 - Oct 31, 2020
- Sponsor: Swiss National Science Foundation
- Principal investigator: Michel Bierlaire
- Project manager: Virginie Lurkin
- Collaborator: Stefano Bortolomiol

EPFL courses

Fall 2020

Introduction to optimization and operations research .
- Level: Bachelor
- Sections: Mechanical Engineering, Civil Engineering, Environmental Sciences and Engineering, Electrical and Electronics Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Nour Dougui, Selin Atac, Stefano Bortolomiol, Marija Kukic, None None, Gael Lederrey, Cloe Cortes Balcells, Negar Rezvany

Spring 2020

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Tim Hillel, Nour Dougui
- Teaching assistants: Stefano Bortolomiol, Gael Lederrey, Selin Atac, Janody Pougala
- Webpage: https://transp-or.epfl.ch/courses/decisionAid2020/index.php

Fall 2019

Introduction to optimization and operations research .
- Level: Bachelor
- Sections: Mechanical Engineering, Civil Engineering, Environmental Sciences and Engineering, Electrical and Electronics Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Nour Dougui, Selin Atac, Stefano Bortolomiol, Nicholas Molyneaux, Gael Lederrey
- Webpage: https://moodle.epfl.ch/course/view.php?id=14491

Spring 2019

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Nikola Obrenovic, Tim Hillel
- Teaching assistants: Stefano Bortolomiol, Gael Lederrey, Selin Atac
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2019/index.php

Fall 2018

Introduction � l'optimisation et � la recherche op�rationnelle.
- Level: Bachelor
- Sections: Mechanical Engineering, Civil Engineering, Environmental Sciences and Engineering, Electrical and Electronics Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Nikola Obrenovic, Nour Dougui, Stefano Bortolomiol, Selin Atac, Gael Lederrey
- Webpage: http://transp-or.epfl.ch/courses/optimization2018/

Spring 2018

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Virginie Lurkin, Nikola Obrenovic
- Teaching assistants: Stefano Bortolomiol, Gael Lederrey
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2018/index.php

Master theses

2021

The railway timetable rescheduling problem with capacity constraints, Benoit Pahud (Civil Engineering)
- Supervision: Nour Dougui, Marija Kukic, Stefano Bortolomiol
- External expert: Hellwig Matthias

2019

Disruption-caused railway timetable rescheduling problem and its solution, Oliver Buschor (Civil Engineering)
- Supervision: Meritxell Pacheco, Stefano Bortolomiol, Michel Bierlaire
- External expert: Hellwig Matthias
Dynamic optimization of a bicycle-sharing system, Mohamed Detsouli (Civil Engineering)
- Supervision: Stefano Bortolomiol, Michel Bierlaire
- External expert: Frédéric Meunier
Heuristic algorithms to find market equilibria in oligopolies, Nicolas Pradignac (Computer science)
- Supervision: Stefano Bortolomiol, Nikola Obrenovic, Michel Bierlaire
- External expert: Olivier Gallay

Semester projects

2021

Designing and implementing rebalancing operations in car sharing systems using MATSim, Alfio Simone Mosset (Civil Engineering)

Supervision: Selin Atac, Stefano Bortolomiol, Michel Bierlaire
In this project, we will focus on Vehicle sharing systems (VSSs). VSSs are becoming increasingly popular, primarily due to their financial and environmental advantages. However, they face many operational challenges, including inventory management of vehicles and parking spots, vehicle load balancing and redistribution, pricing strategies, and demand forecasting. If these challenges are not addressed properly, the VSS risks experiencing a significant loss of customers and therefore revenue. The literature consists of variety of works on VSSs especially focused on the rebalancing operations. On the other hand, the literature lacks the demand forecasting dimension of the VSSs since it is exhausting to collect the data to develop a demand model. This project will aim to address this problem in a different way. Instead of developing a demand model, we aim to simulate the demand structure using an open-source software MATSim (Multi-Agent Transport Simulation Toolkit). The student is expected to develop an environment in MATSim for a car sharing system (CSS) where the census data is used. Then, he will create different scenarios in order to test the effects of different characteristics of the city/region. She will then identify the cases in which the rebalancing operations are needed. The implementation of rebalancing operations will be adapted from the free floating application of MATSim. In other words, different strategies (static, reactive, and proactive) for rebalancing operations will be tested for each scenario and the results will be used to drive to conclusions which explain the relation between the city structure, demand structure and the different strategies of rebalancing operations.

The railway timetable rescheduling problem, Benoit Pahud (Civil Engineering)

Supervision: Nour Dougui, Marija Kukic, Stefano Bortolomiol
In railway networks, unexpected disruptions may occur for different reasons and cause delays, service denial, and, consequently, passenger inconvenience. This pre-study project will look at remediation strategies such as canceling, delaying or rerouting trains in case of unexpected disruptions. This pre-study project follows two main lines of research. First, the student will familiarize with state-of-the-art methodologies and algorithms to generate railway timetables in a disrupted network. Second, the student will learn how these methodologies can be integrated in the commercial software Viriato, produced by the company SMA und Partner AG.

2020-2021

Schedule repair in liner shipping, Benoit Pahud (Civil Engineering)

Supervision: Stefano Bortolomiol, Nour Dougui, Michel Bierlaire
Large liner shipping companies operate several hundred ships worldwide. These ships carry multi-modal containers on pre-established routes with a regular schedule (typically weekly). A schedule is thus an ordered list of port calls (i.e. stops in a harbour) with associated time windows. Since there are several thousands possible ports in the world, designing routes is a complex problem. Furthermore, since a rotation takes weeks or even months, roughly four journeys out of five end up requiring adjustments to accommodate delays, breakdowns or other unforeseeable but frequent events. Due to the extent of the operations, improving from an adequate schedule to an optimal one may yield enormous benefits, not only economically but also in terms of environmental impact and of quality of life for workers. Given the nominal schedule and an additional constraint stemming from an unforeseen event, the aim of the project is to use geographical information and demand statistics in the various ports of a liner shipping network, the student applies Operational Research methodologies to generate a new optimal schedule, completing as much of the original mission as possible while minimising the ecological and economic impacts.

2020

Optimal regulation of oligopolistic markets with discrete choice models of demand, Elodie Duliscouet, Paulin Raison, Yahya Basiouny (Mechanical Engineering)

Supervision: Stefano Bortolomiol, Selin Atac, Michel Bierlaire
This project is inspired by the ongoing research project titled 'New generation of demand-supply interaction models', funded by the Swiss National Science Foundation. In particular, the project aims at studying models to find optimal policies to regulate markets characterized by oligopolistic competition and in which consumers make a discrete choice among a finite set of alternatives. In this framework, consumers are modelled as utility maximizers, according to random utility theory. Suppliers are modelled as profit maximizers, according to the traditional microeconomic treatment. Market competition is modelled as a non-cooperative game, for which an epsilon-equilibrium solution is sought. Finally, the regulator can affect the behavior of all other agents, for instance by giving subsidies or imposing taxes. In transport markets, these interventions might target specific alternatives, to reduce externalities such as congestion or emissions, or specific segments of the population, to achieve social welfare objectives. The objective of the project is to analyze, implement and evaluate algorithms to solve realistic applications of this problem, with particular focus on the transportation sector.

Robust routing and scheduling in liner shipping, Yannis Voet (Civil Engineering)

Supervision: Stefano Bortolomiol, Nour Dougui, Michel Bierlaire
Large liner shipping companies operate several hundred ships worldwide. These ships carry multi-modal containers on pre-established routes with a regular schedule (typically weekly). A schedule is thus an ordered list of port calls (i.e. stops in a harbour) with associated time windows. Since there are several thousands possible ports in the world, designing routes is a complex problem. Furthermore, since a rotation takes weeks or even months, roughly four journeys out of five end up requiring adjustments to accommodate delays, breakdowns or other unforeseeable but frequent events. Due to the extent of the operations, improving from an adequate schedule to an optimal one may yield enormous benefits, not only economically but also in terms of environmental impact and of quality of life for workers. Given geographical information and demand statistics in the various ports of a network, the project aims at applying Operational Research methodologies to automatically generating shipping schedules that make sense technically, economically and environmentally, as well as resisting perturbations. This project is proposed by Mediterranean Shipping Company (MSC).

2019-2020

Analysis of the value of demand forecasting within vehicle sharing systems, Jasso Espadaler (Civil Engineering)

Supervision: Selin Atac, Stefano Bortolomiol, Michel Bierlaire
Vehicle sharing systems (VSSs) are becoming increasingly popular, primarily due to their financial and environmental advantages. However, VSSs face many operational challenges, including inventory management of vehicles and parking spots, vehicle load balancing and redistribution, pricing strategies, and demand forecasting. If these challenges are not addressed properly, the VSS risks experiencing a significant loss of customers and revenue. Recently, new VSSs have been introduced which use light electric vehicles (LEVs). These systems face a number of unique challenges. For instance, demand forecasting for LEV sharing systems is more complex, as locations are not fixed and journeys can start and end at any allowable location. LEV sharing systems also serve a higher portion of the population since these type of vehicles do not require a driving license. As such, the existing techniques for analysing VSSs are not sufficient for these new systems. To address this need, one needs to forecast the future demand of this novel transportation mode. Since it is exhausting to collect the data to develop a demand model, this project will aim to identify the value of a demand model by using mathematical models tailored for rebalancing operations from the literature and simulations. As LEV systems are still in their infancy, data describing them is not yet available. Therefore, the student will use alternative data, including PubliBike bike-sharing system data, accounting for any potential differences in the analysis. Based on the findings from the literature, the student will analyse different mathematical models.

2018-2019

Dynamic optimization of self-service vehicles, Mohamed Detsouli (Civil Engineering)

Supervision: Stefano Bortolomiol, Nikola Obrenovic, Michel Bierlaire
This project is a pr�-�tude project that will prepare the student to working on the Master thesis. The proposed topic is related to the dynamic optimization of self-service vehicle fleets, with a possible focus on dynamic pricing.

Railway infrastructure maintenance, Ludovica Sessa and Robert Abboud (Management of Technology and Financial Engineering)

Supervision: Stefano Bortolomiol, Selin Atac, Michel Bierlaire
Following this summer tragedy in Genoa, Italy, European states and governments became more aware of the importance of keeping their countries� infrastructure modern and maintained. This interdisciplinary project will particularly focus on the topic of railway infrastructure maintenance and will cover some legal, economic, social, political aspects related to this socio-economic problem. The goal of this project is to study the topic of railway infrastructure maintenance from two perspectives. Initially, a qualitative analysis will be performed to precisely define the scope of the research and the main factors that affect the planning of investments to maintain railways infrastructures. Based on the findings of the qualitative analysis, the students will then critically analyze existing mathematical models that generate maintenance schedules and optimal railway investments, and will propose a framework which will be applied on a real-life case study.

2018

Modelling competition in demand-based optimization models, Charlotte Darné (Mathematics)

Supervision: Stefano Bortolomiol, Virginie Lurkin, Michel Bierlaire
The project aims at studying and understanding the interactions between supply and demand in an oligopolistic market, in which multiple operators compete for the same pool of customers. This is a common situation in the transportation sector as well as in other markets. Operators take the supply-side decisions that optimize their own performance function (e.g. maximization of revenues or profits). Such decisions are influenced both by the decisions of their competitors and by the preferences of the customers who consider purchasing one of the services offered on the market. The latter ones are modelled at a disaggregate level according to the random utility theory. The starting point of the project is a recent modelling framework that allows to include any random utility model in a mixed integer optimization formulation. In this framework, a single operator exploits its knowledge of the demand to maximize its objective function, while assuming that the decisions of its competitors are held fixed. The goal of this project is to extend the existing framework by including the case in which two operators simultaneously optimize their decisions. Such problem falls into the category of competitive games called two-player non-cooperative games. The student will refer to the concept of Nash equilibrium to answer questions such as "how does competition affect prices?", "what products should each competitor offer and in which quantity?", "should two competitors fight to attract the same group of customers or should they each target a different market segment?", among others.

A solution approach for the Multicommodity Flow Problem within rail freight transportation, Nicolas Pradignac (Computer science)

Supervision: Stefano Bortolomiol, Nikola Obrenovic, Michel Bierlaire
This project aims at studying the Multicommodity Flow Problem (MFP), which has several real life applications, particularly within the transportation sector. The project has been inspired by an ongoing research project conducted by TRANSP-OR in collaboration with SBB Cargo. In the context of railway freight operations, companies have limited availability of both railway lines and trains. Therefore, they have the goal to optimize as much as possible the usage of their resources in order to minimize the cost of transporting the goods. Such optimization problem can be modelled as a MFP. This project is composed of two stages. First, the student will learn the mathematical model of the MFP, in its two variants: node-arc formulation and path-based formulation. The two variants will be coded and tested on small instances by using a Mixed-Integer Linear Programming (MILP) solver such as CPLEX. Further, the student will implement a solution method to solve larger instances of the problem, by using either an exact method (such as column generation) or a heuristic method.

Gael Lederrey

Gael Lederrey has been a member of the laboratory from Aug 28, 2017 to Sep 30, 2022

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Gael Lederrey.

Journal articles

2021

Lederrey G., Lurkin V., Hillel T., Bierlaire M. (2021). Estimation of Discrete Choice Models with Hybrid Stochastic Adaptive Batch Size Algorithms. Journal of Choice Modelling 38 (100226)

The emergence of Big Data has enabled new research perspectives in the discrete choice community. While the techniques to estimate Machine Learning models on a massive amount of data are well established, these have not yet been fully explored for the estimation of statistical Discrete Choice Models based on the random utility framework. In this article, we provide new ways of dealing with large datasets in the context of Discrete Choice Models. We achieve this by proposing new efficient stochastic optimization algorithms and extensively testing them alongside existing approaches. We develop these algorithms based on three main contributions: the use of a stochastic Hessian, the modification of the batch size, and a change of optimization algorithm depending on the batch size. A comprehensive experimental comparison of fifteen optimization algorithms is conducted across ten benchmark Discrete Choice Model cases. The results indicate that the HAMABS algorithm, a hybrid adaptive batch size stochastic method, is the best performing algorithm across the optimization benchmarks. This algorithm speeds up the optimization time by a factor of 23 on the largest model compared to existing algorithms used in practice. The integration of the new algorithms in Discrete Choice Models estimation software will significantly reduce the time required for model estimation and therefore enable researchers and practitioners to explore new approaches for the specification of choice models.
```
@Article{LedeLurkHillBier21,
  author = {Gael Lederrey and Virginie Lurkin and Tim Hillel and Michel Bierlaire},
  title = {Estimation of Discrete Choice Models with Hybrid Stochastic Adaptive Batch Size Algorithms},
  journal = {Journal of Choice Modelling},
  year = {2021},
  volume = {38},
  number = {100226},
  DOI = {10.1016/j.jocm.2020.100226},
  note = {Accepted on May 20, 2020}}}
```

2017

Hänseler F., Lam W., Bierlaire M., Lederrey G., Nikolic M. (2017). A dynamic network loading model for anisotropic and congested pedestrian flows. Transportation Research Part B: Methodological 95 :149-168


@Article{HaenLamBierLedeNiko16,
  author = {Flurin H\"anseler and William Lam and Michel Bierlaire and Gael Lederrey and Marija Nikolic},
  title = {A dynamic network loading model for anisotropic and congested pedestrian flows},
  journal = {Transportation Research Part B: Methodological},
  year = {2017},
  volume = {95},
  pages = {149-168},
  DOI = {10.1016/j.trb.2016.10.017},
  note = {Accepted on Oct 31, 2016}}}

Technical reports

2019

Lederrey G., Lurkin V., Hillel T., Bierlaire M. (2019). Estimation of Discrete Choice Models with Hybrid Stochastic Adaptive Batch Size Algorithms. Report TRANSP-OR 191213


@TechReport{LedLurHilBie19,
  author = {Gael Lederrey and Virginie Lurkin and Tim Hillel and Michel Bierlaire},
  title = {Estimation of Discrete Choice Models with Hybrid Stochastic Adaptive Batch Size Algorithms},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2019},
  type = {Technical Report},
  number = {TRANSP-OR 191213},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2019


@InProceedings{LEDLURHILBIER_HEART19,
  author = {Gael Lederrey and Virginie Lurkin and Tim Hillel and Michel Bierlaire},
  title = {Stochastic optimization with adaptive

batch size: Discrete choice models as a case study},
  booktime = {Proceedings of the 8th Symposium of the European

Association for Research in Transportation (HEART), 4-6 September},
  year = {2019},
  address = {Budapest, Hungary}}}


@InProceedings{LEDLURHILBIER_STRC019,
  author = {Gael Lederrey and Virginie Lurkin and Tim Hillel and Michel Bierlaire},
  title = {Stochastic optimization with adaptive batch size: Discrete choice models as a case study},
  booktime = {Proceedings of the 19th Swiss Transport Research Conference (STRC), 15-17 May},
  year = {2019},
  address = {Ascona, Switzerland}}}

2018


@InProceedings{LedLurBiel_IEEE2018,
  author = {Gael Lederrey and Virginie Lurkin and Michel Bierlaire},
  title = {SNM: Stochastic Newton Method for Optimization of Discrete Choice Models },
  booktime = {Proceedings of the 21st IEEE International Conference on Intelligent Transportation Systems (IEEE  ITSC'18), 4-7 November},
  year = {2018},
  address = {Maui, Hawaii}}}

Lederrey G., West R. (2018) When Sheep Shop: Measuring Herding Effects in Product Ratings with Natural Experiments. Proceedings of the The 2018 Web Conference (WWW2018), 23-27 April 2018, Lyon, France


@InProceedings{LEDWES_WWW2018,
  author = {Gael Lederrey and Robert West},
  title = {When Sheep Shop: Measuring Herding Effects in Product Ratings with Natural Experiments},
  booktime = {Proceedings of the The 2018 Web Conference (WWW2018), 23-27 April 2018},
  year = {2018},
  address = {Lyon, France}}}

2016

Vasic M., Lederrey G., Navarro I., Martinoli A. (2016) An overtaking decision algorithm for networked intelligent vehicles based on cooperative perception. Proceedings of the Intelligent Vehicles Symposium (IV), 2016 (IEEE2016), 19-22 June 2016, Gothenburg, Sweden


@InProceedings{VasLedNavMar_IEEE2016,
  author = {Milos Vasic and Gael Lederrey and Inaki Navarro and Alcherio Martinoli},
  title = {An overtaking decision algorithm for networked intelligent vehicles based on cooperative perception},
  booktime = {Proceedings of the  Intelligent Vehicles Symposium (IV), 2016 (IEEE2016), 19-22 June 2016},
  year = {2016},
  address = {Gothenburg, Sweden}}}

Talks

2021

Lederrey G., Hillel T., Bierlaire M. DATGAN: Integrating expert knowledge into deeplearning for population synthesis September 14, 2021. STRC 2021, Monte Veritá, Ascona, Switzerland.


@Misc{LEDHILBIE_STRC2021,
  author = {Gael Lederrey and Tim Hillel and Michel Bierlaire},
  title = {DATGAN: Integrating expert knowledge into deeplearning for population synthesis },
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/LEDHILBIE_STRC2021.pdf}},
  year = {2021},
  note = {Presented at STRC 2021, Monte Verit\á, Ascona, Switzerland}}}

Lederrey G., Hillel T., Bierlaire M. Synthetic population generation using GANs and expert knowledge January 28, 2021. AUM2020: Online Global Workshop, Home.


@Misc{LED_AUM2021,
  author = {Gael Lederrey and Tim Hillel and Michel Bierlaire},
  title = {Synthetic population generation using GANs and expert knowledge},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/LED_AUM2021.pdf}},
  year = {2021},
  note = {Presented at AUM2020: Online Global Workshop, Home}}}

2019

Lederrey G., Lurkin V., Hillel T., Bierlaire M. Stochastic Optimization with Adaptive Batch Size: Discrete Choice Models as a Case Study May 17, 2019. 19th Swiss Transport Research Conference (STRC), Monte Verità, Ascona, Switzerland.


@Misc{LED_STRC2019,
  author = {Gael Lederrey and Virginie Lurkin and Tim Hillel and Michel Bierlaire},
  title = {Stochastic Optimization with Adaptive Batch Size: Discrete Choice Models as a Case Study},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/LED_STRC2019.pdf}},
  year = {2019},
  note = {Presented at 19th Swiss Transport Research Conference (STRC), Monte Verit\à, Ascona, Switzerland}}}

2018

Lederrey G., Lurkin V., Bierlaire M. SNM: Stochastic Newton Method for Optimization of Discrete Choice Models November 07, 2018. The 21st IEEE International Conference on Intelligent Transportation Systems, , Maui, Hawaii, USA.


@Misc{Led_IEEE2018,
  author = {Gael Lederrey and Virginie Lurkin and Michel Bierlaire},
  title = {SNM: Stochastic Newton Method for Optimization of Discrete Choice Models },
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Led_IEEE2018.pdf}},
  year = {2018},
  note = {Presented at The 21st IEEE International Conference on Intelligent Transportation Systems, , Maui, Hawaii, USA}}}

Lederrey G., Lurkin V., Bierlaire M. Optimization of DCMs, and beyond! September 05, 2018. 7th Symposium of the European Association for Research in Transportation, National Technical University of Athens, Athens, Greece.


@Misc{Led_hEART2018,
  author = {Gael Lederrey and Virginie Lurkin and Michel Bierlaire},
  title = {Optimization of DCMs, and beyond!},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Led_hEART2018.pdf}},
  year = {2018},
  note = {Presented at 7th Symposium of the European Association for Research in Transportation, National Technical University of Athens, Athens, Greece}}}

Lederrey G., Lurkin V., Bierlaire M. Optimization of Discrete Choice Models June 22, 2018. Workshop on Discrete Choice Models 2018, EPFL, Lausanne, Switzerland.


@Misc{Led_DCMW2018,
  author = {Gael Lederrey and Virginie Lurkin and Michel Bierlaire},
  title = {Optimization of Discrete Choice Models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Led_DCMW2018.pdf}},
  year = {2018},
  note = {Presented at Workshop on Discrete Choice Models 2018, EPFL, Lausanne, Switzerland}}}

Lederrey G., Lurkin V., Bierlaire M. SNM: Stochastic Newton Method for Optimization of Discrete Choice Models May 18, 2018. 18th Swiss Transport Research Conference (STRC), Monte Verità, Ascona, Switzerland.


@Misc{Led_STRC2018,
  author = {Gael Lederrey and Virginie Lurkin and Michel Bierlaire},
  title = {SNM: Stochastic Newton Method for Optimization of Discrete Choice Models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Led_STRC2018.pdf}},
  year = {2018},
  note = {Presented at 18th Swiss Transport Research Conference (STRC), Monte Verit\à, Ascona, Switzerland}}}

Reviewing

IEEE Transactions on Intelligent Transportation Systems (1)

EPFL courses

Fall 2021

Introduction to optimization and operations research .
- Level: Bachelor
- Sections: Mechanical Engineering, Civil Engineering, Environmental Sciences and Engineering, Electrical and Electronics Engineering
- Lecturer: Virginie Lurkin
- Teaching assistants: Nour Dougui, Negar Rezvany, Nicholas Molyneaux, Gael Lederrey, Marija Kukic, Tom Haering, Stefano Bortolomiol, Cloe Cortes Balcells

Spring 2020

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Tim Hillel, Nour Dougui
- Teaching assistants: Stefano Bortolomiol, Gael Lederrey, Selin Atac, Janody Pougala
- Webpage: https://transp-or.epfl.ch/courses/decisionAid2020/index.php

Spring 2019

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Nikola Obrenovic, Tim Hillel
- Teaching assistants: Stefano Bortolomiol, Gael Lederrey, Selin Atac
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2019/index.php

Spring 2018

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Virginie Lurkin, Nikola Obrenovic
- Teaching assistants: Stefano Bortolomiol, Gael Lederrey
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2018/index.php
Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Yuki Oyama, Nikola Obrenovic, Riccardo Scarinci
- Teaching assistants: Gael Lederrey, Zhengchao Wang
- Webpage: http://transp-or.epfl.ch/courses/OptSim2018/

Fall 2017

Introduction � l'optimisation et � la recherche op�rationnelle.
- Level: Bachelor
- Sections: Mechanical Engineering, Civil Engineering, Environmental Sciences and Engineering, Electrical and Electronics Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Virginie Lurkin, Gael Lederrey, Nikola Obrenovic
- Webpage: http://transp-or.epfl.ch/courses/optimization2017/

Master theses

2020

Risk assessment of pedestrian crossings, Adrien Nicolet (Civil Engineering)
- Supervision: Nicholas Molyneaux, Gael Lederrey, Michel Bierlaire
- External expert:

2019

Evaluation of Bootstrap methods, Jessica Hopkins (Mathematics)
- Supervision: Tim Hillel, Gael Lederrey, Michel Bierlaire
- External expert: Damon Wischik

Semester projects

2021

How to assess synthetic data?, Romain Palazzo (Mathematics)

Supervision: Gael Lederrey, Nicola Ortelli, Michel Bierlaire

Road Safety: Investigating the Role of Latent Behaviors in Injury Severity, Daniela Spadaro (Mathematics)

Supervision: Nicola Ortelli, Gael Lederrey, Michel Bierlaire
Reducing the number of fatalities caused by traffic accidents is a major concern everywhere around the world. In order to do so, it is crucial to understand how various factors influence injury severity. The existing literature generally deals with explaining the influence of directly observable variables on the occurence and severity of crashes, but fails to adequately consider driver behavior. Hence, the main goal of this project is to explore approaches that enable the incorporation of latent attitudes in injury severity models. Specifically, we are interested in investigating the "propensity to taking risks" that drivers may exhibit, as well as the influence of such behaviors on the severity of injuries suffered by other road users.

2020

Enhancing the Serial Estimation of Discrete Choice Models Sequences, Youssef Kitane (Civil Engineering)

Supervision: Nicola Ortelli, Gael Lederrey, Michel Bierlaire
In the past years, an increasing number of studies has investigated the usefulness of data-driven methods for the task of developing discrete choice models so as to alleviate modelers from the burden of manual specification. One of these methods makes use of a variable neighborhood search algorithm to mimic the way an experienced modeler would build the utility functions of a discrete choice model. More precisely, small modifications are sequentially brought to an initial specification, while the induced improvement is assessed by means of a measure of performance. Although the quality of the generated models is high, this method faces a severe limitation: the computational time for a single run counts in hours with relatively small datasets and grows quickly with the amount of considered data. The main goal of this project is to speed up the estimation of DCMs in this precise context.

2019-2020

Risk assessment of pedestrian crossings, Adrien Nicolet (Computer science)

Supervision: Nicholas Molyneaux, Gael Lederrey, Michel Bierlaire

2019

Estimation of Discrete Choice Models using HAMABS 2.0, Linah Charif (Civil Engineering)

Supervision: Gael Lederrey, Nicola Ortelli, Michel Bierlaire
Improvement of HAMABS for choice modeling estimation using automatic switch.

Calibrating pedestrian control strategies., Léopold Bouraux (Computer science)

Supervision: Nicholas Molyneaux, Gael Lederrey, Michel Bierlaire
The objective of this semester project is to calibrate two pedestrian control strategies using heuristic methods and/or optimization methods like simulated annealing or genetic algorithms. Two strategies are under investigation: gating to prevent a gridlock situation and flow separators which prevent counter flow. The student will have to use the pedestrian simulator I have implemented and integrate it with an optimization approach like simulated annealing.

2018

Goodness of fit in DCMs, Jessica Hopkins (Mathematics)

Supervision: Gael Lederrey, Michel Bierlaire, Nicholas Molyneaux
In these last years, with the arrival and wide-spreading of Big data, the discrete choice modeling community has gained access to larger datasets, more computing power and the possibility to drastically increase model complexity. It has therefore become crucial to establish precise measures of the goodness of fit as well as techniques to detect and reduce overfitting. We propose to apply known techniques from machine learning � such as cross-validation � to discrete choice models. We investigate the existence of overfitting in discrete choice models using a linear and a polynomial multinomial logit model on the Optima dataset. We adopted a train-test approach to evaluate model performance. Model estimates for both models were computed on N = 100, 200 and 500 runs of random train-test splits, using an 80-20 ratio. The results show that the polynomial model has better fit on the training samples, but performs worse than the linear model on the testing set, indicating the presence of overfitting. The use of K-fold cross-validation for simple multinomial logit models has also been explored. However, model estimates obtained using K-fold cross-validation did not differ from the model estimates estimates obtained from a single model fitting, due to underfitting. The distributions of the results obtained on the Optima dataset motivated the exploration of an empirical hypothesis test to determine the presence of overfitting. The test is based on the assumption that training and testing samples of a model which is not overfitting will have the same mean. This test was implemented using the t-test for two samples with unequal variances, also known as Welch test. This empirical test presented in this report did not differentiate the models in terms of overfitting. However, it could be a starting point of our future research, which will be aimed at establishing a statistical definition of overfitting.

Automatic utility specification using machine learning techniques, Nicola Ortelli

Supervision: Gael Lederrey, Tim Hillel, Virginie Lurkin
The objective of this project is to help building a utility function using different Data Analysis functions. It is well known that modeler spend a lot of time creating their utility function for DCMs. The goal of this project is to build an automated procedure to generate Utility functions based on the data. The tools used are Data Analysis and Machine Learning (Decision Tree, Random Forest, Linear Regression, Clustering, etc.). The utility functions found using these tools will then be compared to standard and more advanced utility functions. Another direction that we can take is using Machine Learning to extract the possible nests for a Nested Logit Model. This direction, however, requires a deeper knowledge in Discrete Choice Modelling. We are open to the discussion concerning the available directions.

Building offline and online optimization algorithms for dispatchment of teams at Nez Rouge., Colin Ducommun

Supervision: Gael Lederrey, Nicholas Molyneaux, Michel Bierlaire
Nez Rouge (http://nezrouge.ch) is a swiss charitable association with the purpose of driving people back home safely during the cold nights of December. They have to find many volunteers across the whole country and the demand never stops growing. Instead of helping them find new volunteers, I propose to solve one difficult task: dispatching efficiently the volunteers, the idea being to reduce the waiting-time of customers. Using data provided by Nez Rouge, we will first build an offline optimization problem to find a lower bound on the estimated waiting-time and compare it to the actual waiting-time. The second step will be to build an online optimization problem using the API of OpenStreetMap to solve this problem in real-time. The third and final step will be to build a webpage for the volunteers at Nez Rouge. Note: This project can be done as a master project or split between multiple semester projects, depending on the number of credits you have to do.

2017-2018

From public transport vehicles to pedestrian flows., Rodolphe Farrando

Supervision: Nicholas Molyneaux, Gael Lederrey, Michel Bierlaire
The objective of this semester project is to extend the notion of "train induced flows" to other modes of public transport. When public transport vehicles arrive in the station, many passengers disembark. From the infrastructure's point-of-view, there is a flow of pedestrians arriving. The characteristics of such flows depend on the vehicle's characteristics (door width for example) and the characteristics of the infrastructure (width of the corridors for example). The student will explore the different interactions and characterize the different flows by using models similar to the "train induced flows" model, already published. The specifications will be different based on the various modes and platform setups. The second objective is to explore the feasibility of using a Poisson distribution to model the pedestrians arriving onto platforms. Similarly to alighting flows, different configurations can lead to different model specifications. The student will start by exploring the literature then, based on the pre-existing models, some new formulations can be proposed. Data is available for calibration of pedestrian flows boarding trains. Synthetic data can be used for the calibration of other models. This project can be done during the spring 2018 semester.

2017

Alternative activity pattern generation for stated preference surveys, Nicola Marco Ortelli (Civil Engineering)

Supervision: Anna Fernandez Antolin, Gael Lederrey, Michel Bierlaire

Nicholas Molyneaux

Nicholas Molyneaux has been a member of the laboratory from Sep 01, 2016 to Feb 15, 2022

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Nicholas Molyneaux.

Journal articles

2021

Molyneaux N., Scarinci R., Bierlaire M. (2021). Design and analysis of control strategies for pedestrian flows. Transportation 48 :1767-1807


@Article{MolyScarBier20,
  author = {Nicholas Molyneaux and Riccardo Scarinci and Michel Bierlaire},
  title = {Design and analysis of control strategies for pedestrian flows},
  journal = {Transportation},
  year = {2021},
  volume = {48},
  pages = {1767-1807},
  DOI = {10.1007/s11116-020-10111-1},
  note = {Accepted on Apr 18, 2020}}}

2017

Hänseler F., Molyneaux N., Bierlaire M. (2017). Estimation of pedestrian origin-destination demand in train stations. Transportation Science 51 (3):981-997


@Article{HaenMolyBier16,
  author = {Flurin H\"anseler and Nicholas Molyneaux and Michel Bierlaire},
  title = {Estimation of pedestrian origin-destination demand in train stations},
  journal = {Transportation Science},
  year = {2017},
  volume = {51},
  number = {3},
  pages = {981-997},
  DOI = {10.1287/trsc.2016.0723},
  note = {Accepted on Jul 07, 2016}}}

Book chapters

2020


@InProceedings{BierScarNikoOyamMolyWang20,
  author = {Michel Bierlaire and Riccardo Scarinci and Marija Nikolic and Yuki Oyama and Nicholas Molyneaux and Zengchao Wang},
  title = {Methodologies for understanding and improving pedestrian mobility},
  year = {2020},
  booktile = {Handbook of Urban Mobilities},
  editor = {Ole B. Jensen and  Claus Lassen and  Vincent Kaufmann and  Malene Freudendal-Pedersen and  Ida Sofie G{\o}tzsche Lange},
  series = {Routledge International Handbooks},
  publisher = {Routledge}}}

Technical reports

2021

Molyneaux N., Bierlaire M. (2021). Analysis and modelling of intra-hub pedestrian dynamics. Report TRANSP-OR 210526


@TechReport{MolyBierTF21,
  author = {Nicholas Molyneaux and Michel Bierlaire},
  title = {Analysis and modelling of intra-hub pedestrian dynamics},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2021},
  type = {Technical Report},
  number = {TRANSP-OR 210526},
  address = {Lausanne, Switzerland}}}

Molyneaux N., Bierlaire M. (2021). Controlling pedestrian flows with moving walkways. Report TRANSP-OR 210218


@TechReport{MolyBier21,
  author = {Nicholas Molyneaux and Michel Bierlaire},
  title = {Controlling pedestrian flows with moving walkways},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2021},
  type = {Technical Report},
  number = {TRANSP-OR 210218},
  address = {Lausanne, Switzerland}}}

2019

Molyneaux N., Scarinci R., Bierlaire M. (2019). Design and analysis of control strategies for pedestrian flows. Report TRANSP-OR 191031


@TechReport{MolyScarBier19,
  author = {Nicholas Molyneaux and Riccardo Scarinci and Michel Bierlaire},
  title = {Design and analysis of control strategies for pedestrian flows},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2019},
  type = {Technical Report},
  number = {TRANSP-OR 191031},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2019


@InProceedings{MolScaBie_STRC2019,
  author = {Nicholas Molyneaux and Riccardo Scarinci and Michel Bierlaire},
  title = {The impact of counter-flow on pedestrian walking times},
  booktime = {Proceedings of the 19th Swiss Transport Research Conference (STRC), 15-17 May},
  year = {2019},
  address = {Ascona, Switzerland}}}


@InProceedings{MolScaBie_TRISTAN_2019,
  author = {Nicholas Molyneaux and Riccardo Scarinci and Michel Bierlaire},
  title = {Improving pedestrian dynamics by preventing counter-flow},
  booktime = {Proceedings of the Tenth Triennial Symposium on Transportation Analysis (TRISTAN X), 17-21 June},
  year = {2019},
  address = {Hamilton Island, Australia}}}

2018


@InProceedings{MolScaBie_DTA2018,
  author = {Nicholas Molyneaux and Riccardo Scarinci and Michel Bierlaire},
  title = {Controlling Pedestrian Flows Using a Dynamic Traffic Management System},
  booktime = {Proceedings of the 7th International Symposium on 

Dynamic Traffic Assignment: Smart Transportation (DTA), 6-8 June},
  year = {2018},
  address = {Hong Kong, China}}}


@InProceedings{JeaMolScaBie_STRC2018,
  author = {Charles Jeanbart and Nicholas Molyneaux and Riccardo Scarinci and Michel Bierlaire},
  title = {Network design of moving walkways in transportation hubs},
  booktime = {Proceedings of the 18th Swiss Transport Research Conference (STRC), 16-18 May},
  year = {2018},
  address = {Ascona, Switzerland}}}


@InProceedings{MolScaBie_STRC2018,
  author = {Nicholas Molyneaux and Riccardo Scarinci and Michel Bierlaire},
  title = {Two management strategies for improving passenger transfer experience in train stations },
  booktime = {Proceedings of the 18th Swiss Transport Research Conference (STRC), 16-18 May},
  year = {2018},
  address = {Ascona, Switzerland}}}

2017


@InProceedings{MolScaBie_STRC2017,
  author = {Nicholas Molyneaux and Riccardo Scarinci and Michel Bierlaire},
  title = {Pedestrian management strategies for improving flow dynamics in transportation hubs},
  booktime = {Proceedings of the 17th Swiss Transport Research Conference (STRC), 17-19 May},
  year = {2017},
  address = {Ascona, Switzerland}}}

2014


@InProceedings{Haens_STRC_2014,
  author = {Flurin H\"anseler and Nicholas Molyneaux and Michel Bierlaire and Amanda Stathopoulos},
  title = {Schedule-based estimation of pedestrian demand within a railway station},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), 14-16 May},
  year = {2014},
  address = {Ascona, Switzerland}}}

Molyneaux N., Hänseler F., Bierlaire M. (2014) Modelling of train-induced pedestrian flows in railway stations. Proceedings of the Swiss Transportation Research Conference (STRC), 14-16 May, Ascona, Switzerland


@InProceedings{MolHaeBie_STRC_2014,
  author = {Nicholas Molyneaux and Flurin H\"anseler and Michel Bierlaire},
  title = {Modelling of train-induced pedestrian flows in railway stations},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), 14-16 May},
  year = {2014},
  address = {Ascona, Switzerland}}}

Talks

2019

Molyneaux N., Scarinci R., Bierlaire M. Improving pedestrian dynamics by preventing counter-flow June 20, 2019. Tenth Triennial Symposium on Transportation Analysis (TRISTAN X), Hamilton Island, Australia.


@Misc{Moly_TRISTAN_2019,
  author = {Nicholas Molyneaux and Riccardo Scarinci and Michel Bierlaire},
  title = {Improving pedestrian dynamics by preventing counter-flow},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Moly_TRISTAN_2019.pdf}},
  year = {2019},
  note = {Presented at Tenth Triennial Symposium on Transportation Analysis (TRISTAN X), Hamilton Island, Australia}}}

Molyneaux N., Scarinci R., Bierlaire M. The impact of counter-flow on pedestrian walking times. May 17, 2019. 19th Swiss Transport Research Conference (STRC), Monte Verità, Ascona, Switzerland.


@Misc{Moly_STRC2019,
  author = {Nicholas Molyneaux and Riccardo Scarinci and Michel Bierlaire},
  title = {The impact of counter-flow on pedestrian walking times.},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Moly_STRC2019.pdf}},
  year = {2019},
  note = {Presented at 19th Swiss Transport Research Conference (STRC), Monte Verit\à, Ascona, Switzerland}}}

Molyneaux N., Scarinci R., Bierlaire M. Improving pedestrian dynamics by controlling pedestrian flows April 04, 2019. (http://www.trans-form-project.org/)TRANS-FORM workshop, EPFL, Lausanne, Switzerland.


@Misc{Moly_TF2019,
  author = {Nicholas Molyneaux and Riccardo Scarinci and Michel Bierlaire},
  title = {Improving pedestrian dynamics by controlling pedestrian flows},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Moly_TF2019.pdf}},
  year = {2019},
  note = {Presented at TRANS-FORM workshop, EPFL, Lausanne, Switzerland}}}

2018

Molyneaux N., Scarinci R., Bierlaire M. Reducing variability in passenger transfer times with two management strategies inside transportation hubs September 14, 2018. International Conference on Operations Research, Université libre de Bruxelles, Brussels, Belgium.


@Misc{Moly_OR2018,
  author = {Nicholas Molyneaux and Riccardo Scarinci and Michel Bierlaire},
  title = {Reducing variability in passenger transfer times with two management strategies inside transportation hubs},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Moly_OR2018.pdf}},
  year = {2018},
  note = {Presented at International Conference on Operations Research, Universit\é libre de Bruxelles, Brussels, Belgium}}}

Molyneaux N., Scarinci R., Bierlaire M. Gating as a management strategy for controlling pedestrian flows September 05, 2018. 7th Symposium of the European Association for Research in Transportation, National Technical University of Athens, Athens, Greece.


@Misc{Moly_hEART2018,
  author = {Nicholas Molyneaux and Riccardo Scarinci and Michel Bierlaire},
  title = {Gating as a management strategy for 

controlling pedestrian flows },
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Moly_hEART2018.pdf}},
  year = {2018},
  note = {Presented at 7th Symposium of the European Association for Research in Transportation, National Technical University of Athens, Athens, Greece}}}

Molyneaux N., Scarinci R., Bierlaire M. Controlling Pedestrian Flows Using a Dynamic Traffic Management System June 06, 2018. 7th International Symposium on Dynamic Traffic Assignment: Smart Transportation, The University of Hong Kong, China.


@Misc{Moly_DTA2018,
  author = {Nicholas Molyneaux and Riccardo Scarinci and Michel Bierlaire},
  title = {Controlling Pedestrian Flows Using a Dynamic Traffic Management System},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Moly_DTA2018.pdf}},
  year = {2018},
  note = {Presented at 7th International Symposium on Dynamic Traffic Assignment: 

Smart Transportation, The University of Hong Kong, China}}}

Molyneaux N., Scarinci R., Bierlaire M. Two management strategies for improving passenger transfer experience in train stations . May 18, 2018. 18th Swiss Transport Research Conference (STRC), Monte Verità, Ascona, Switzerland.


@Misc{Moly_STRC2018,
  author = {Nicholas Molyneaux and Riccardo Scarinci and Michel Bierlaire},
  title = {Two management strategies for improving passenger transfer experience in train stations .},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Moly_STRC2018.pdf}},
  year = {2018},
  note = {Presented at 18th Swiss Transport Research Conference (STRC), Monte Verit\à, Ascona, Switzerland}}}

2017

Molyneaux N., Scarinci R., Bierlaire M. Pedestrian management strategies for improving flow dynamics in transportation hubs May 18, 2017. 17th Swiss Transport Research Conference (STRC), Monte Verità, Ascona, Switzerland.


@Misc{Moly_STRC2017,
  author = {Nicholas Molyneaux and Riccardo Scarinci and Michel Bierlaire},
  title = {Pedestrian management strategies for improving flow dynamics in transportation hubs},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Moly_STRC2017.pdf}},
  year = {2017},
  note = {Presented at 17th Swiss Transport Research Conference (STRC), Monte Verit\à, Ascona, Switzerland}}}

2014

Molyneaux N., Hänseler F., Bierlaire M. Modelling of train-induced pedestrian flows in railway stations May 15, 2014. 17th Swiss Transport Research Conference (STRC), Monte Verità, Ascona, Switzerland.


@Misc{Moly_STRC2014,
  author = {Nicholas Molyneaux and Flurin H\"anseler and Michel Bierlaire},
  title = {Modelling of train-induced pedestrian flows in railway stations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Moly_STRC2014.pdf}},
  year = {2014},
  note = {Presented at 17th Swiss Transport Research Conference (STRC), Monte Verit\à, Ascona, Switzerland}}}

Research projects

2016

TRANS-FORM: Smart transfers through unravelling urban form and travel flow dynamics

TRANS-FORM, a cooperation between universities, industrial partners, public authorities and private operators, will develop, implement and test a data driven decision making tool that will support smart planning, and proactive and adaptive operations. The objective of the project is to better understand transferring dynamics in multi-modal public transport systems and develop insights, strategies and methods to support decision makers in transforming public transport usage to a seamless travel experience by using smart data. The tool will integrate new concepts and methods of behavioral modelling, passenger flow forecasting and network state predictions into real-time operations. TRANS-FORM is funded under the European Commission Horizon 2020 ERA-NET program.
- Mar 03, 2016 - Mar 03, 2019
- Sponsor: The Federal Department of the Environment, Transport, Energy and Communications (DETEC)
- Principal investigator: Michel Bierlaire
- Project managers: Shadi Sharif Azadeh, Riccardo Scarinci, Yuki Oyama
- Collaborators: Nicholas Molyneaux, Nikola Obrenovic

EPFL courses

Fall 2021

Introduction to optimization and operations research .
- Level: Bachelor
- Sections: Mechanical Engineering, Civil Engineering, Environmental Sciences and Engineering, Electrical and Electronics Engineering
- Lecturer: Virginie Lurkin
- Teaching assistants: Nour Dougui, Negar Rezvany, Nicholas Molyneaux, Gael Lederrey, Marija Kukic, Tom Haering, Stefano Bortolomiol, Cloe Cortes Balcells

Fall 2019

Introduction to optimization and operations research .
- Level: Bachelor
- Sections: Mechanical Engineering, Civil Engineering, Environmental Sciences and Engineering, Electrical and Electronics Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Nour Dougui, Selin Atac, Stefano Bortolomiol, Nicholas Molyneaux, Gael Lederrey
- Webpage: https://moodle.epfl.ch/course/view.php?id=14491

Fall 2018

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Meritxell Pacheco, Yuki Oyama, Nicholas Molyneaux
- Webpage: http://transp-or.epfl.ch/courses/dca2018

Spring 2017

Enjeux mondiaux : Mobilit� A.
- Level: Bachelor
- Section: All sections
- Lecturer: Michel Bierlaire
- Teaching assistants: Nicholas Molyneaux, Stefan Binder
- Webpage: http://moodle.epfl.ch/course/view.php?id=13982

Master theses

2020

Risk assessment of pedestrian crossings, Adrien Nicolet (Civil Engineering)
- Supervision: Nicholas Molyneaux, Gael Lederrey, Michel Bierlaire
- External expert:

2017-2018

Moving walkways in train stations, Charles Jeanbart (Civil Engineering)
- Supervision: Nicholas Molyneaux, Riccardo Scarinci, Michel Bierlaire
- External expert: TBD

Semester projects

2024

Comparison of different methodologies for interpolating traffic count data, Mya Jamal Lahjouji (Civil Engineering)

Supervision: Marija Kukic, Nicholas Molyneaux, Michel Bierlaire
In this project, our objective is to evaluate various methodologies for interpolating gaps in traffic count data, assessing their effectiveness in relation to computational and data requirements. We focus on the case study of Switzerland using the data provided by Canton Vaud. This data has been collected from different locations over several years using different data collection procedures which resulted in having unbalanced data with different missing information and inconsistencies. In order to construct a realistic network, we want to investigate the different methodologies to fill these missing information and compare it with the existing solution provided by Canton.

2019-2020

Risk assessment of pedestrian crossings, Adrien Nicolet (Computer science)

Supervision: Nicholas Molyneaux, Gael Lederrey, Michel Bierlaire

2019

Calibrating pedestrian control strategies., Léopold Bouraux (Computer science)

Supervision: Nicholas Molyneaux, Gael Lederrey, Michel Bierlaire
The objective of this semester project is to calibrate two pedestrian control strategies using heuristic methods and/or optimization methods like simulated annealing or genetic algorithms. Two strategies are under investigation: gating to prevent a gridlock situation and flow separators which prevent counter flow. The student will have to use the pedestrian simulator I have implemented and integrate it with an optimization approach like simulated annealing.

2018

Goodness of fit in DCMs, Jessica Hopkins (Mathematics)

Supervision: Gael Lederrey, Michel Bierlaire, Nicholas Molyneaux
In these last years, with the arrival and wide-spreading of Big data, the discrete choice modeling community has gained access to larger datasets, more computing power and the possibility to drastically increase model complexity. It has therefore become crucial to establish precise measures of the goodness of fit as well as techniques to detect and reduce overfitting. We propose to apply known techniques from machine learning � such as cross-validation � to discrete choice models. We investigate the existence of overfitting in discrete choice models using a linear and a polynomial multinomial logit model on the Optima dataset. We adopted a train-test approach to evaluate model performance. Model estimates for both models were computed on N = 100, 200 and 500 runs of random train-test splits, using an 80-20 ratio. The results show that the polynomial model has better fit on the training samples, but performs worse than the linear model on the testing set, indicating the presence of overfitting. The use of K-fold cross-validation for simple multinomial logit models has also been explored. However, model estimates obtained using K-fold cross-validation did not differ from the model estimates estimates obtained from a single model fitting, due to underfitting. The distributions of the results obtained on the Optima dataset motivated the exploration of an empirical hypothesis test to determine the presence of overfitting. The test is based on the assumption that training and testing samples of a model which is not overfitting will have the same mean. This test was implemented using the t-test for two samples with unequal variances, also known as Welch test. This empirical test presented in this report did not differentiate the models in terms of overfitting. However, it could be a starting point of our future research, which will be aimed at establishing a statistical definition of overfitting.

Development of a heuristic algorithm for a hub location problem, Thibaut Guillaume Marie Richard

Supervision: Nikola Obrenovic, Nicholas Molyneaux, Michel Bierlaire
In railway networks, the location of marshalling and shunting yards, i.e. facilities used for sorting and consolidation of transported goods, determines the costs of cargo transport to a great extent. Hence, each railway company is highly motivated to determine the optimal location of these yards. Such task can be represented as a multi-level facility location problem or a hub location problem. The aim of this project is the development of an heuristic algorithm for solving a facility location problem with facilities split in multiple hierarchical layers. The project will be a part of a larger research project done in the cooperation with SBB. The student will start from understanding the exact mathematical model of the mentioned problem and encode it into a heuristic algorithm, e.g. a local search algorithm or VNS. Also, the student will have to solve the problem on a smaller data set using an exact method and compare the solution with the results of the heuristic algorithm. The student needs to have good programming skills (Java or some other OO language) and knowledge of mixed integer linear programming and heuristics.

Building offline and online optimization algorithms for dispatchment of teams at Nez Rouge., Colin Ducommun

Supervision: Gael Lederrey, Nicholas Molyneaux, Michel Bierlaire
Nez Rouge (http://nezrouge.ch) is a swiss charitable association with the purpose of driving people back home safely during the cold nights of December. They have to find many volunteers across the whole country and the demand never stops growing. Instead of helping them find new volunteers, I propose to solve one difficult task: dispatching efficiently the volunteers, the idea being to reduce the waiting-time of customers. Using data provided by Nez Rouge, we will first build an offline optimization problem to find a lower bound on the estimated waiting-time and compare it to the actual waiting-time. The second step will be to build an online optimization problem using the API of OpenStreetMap to solve this problem in real-time. The third and final step will be to build a webpage for the volunteers at Nez Rouge. Note: This project can be done as a master project or split between multiple semester projects, depending on the number of credits you have to do.

2017-2018

From public transport vehicles to pedestrian flows., Rodolphe Farrando

Supervision: Nicholas Molyneaux, Gael Lederrey, Michel Bierlaire
The objective of this semester project is to extend the notion of "train induced flows" to other modes of public transport. When public transport vehicles arrive in the station, many passengers disembark. From the infrastructure's point-of-view, there is a flow of pedestrians arriving. The characteristics of such flows depend on the vehicle's characteristics (door width for example) and the characteristics of the infrastructure (width of the corridors for example). The student will explore the different interactions and characterize the different flows by using models similar to the "train induced flows" model, already published. The specifications will be different based on the various modes and platform setups. The second objective is to explore the feasibility of using a Poisson distribution to model the pedestrians arriving onto platforms. Similarly to alighting flows, different configurations can lead to different model specifications. The student will start by exploring the literature then, based on the pre-existing models, some new formulations can be proposed. Data is available for calibration of pedestrian flows boarding trains. Synthetic data can be used for the calibration of other models. This project can be done during the spring 2018 semester.

2017

Modeling public transport transfers in the “new” Lausanne train station, José Ramón Rodriguez

Supervision: Nicholas Molyneaux, Riccardo Scarinci, Michel Bierlaire
Exploration of the tracking data collected in the main station of Basel. The objective is to calculate passenger-centric variability indicators and perform some simple modelling tasks.

Building an integrated model for modelling pedestrian movements inside hubs, Charles Jeanbart

Supervision: Nicholas Molyneaux, Riccardo Scarinci, Michel Bierlaire
The objective of this project is to build a simulator for measuring the impact of management strategies inside transportation hubs.

2016

Measure of user-oriented service variability in hubs, Anouk Allenspach and Dieynaba Dia (Civil Engineering)

Supervision: Nicholas Molyneaux, Riccardo Scarinci, Michel Bierlaire
This project's goal is to explore the service variability (reliability) in public transport hubs. Three operator oriented service characteristics are common in literature (robustness, reliability and punctuality). As these measures are operator oriented, they might not reflect actual level-of-service (LOS) experienced by users (pedestrians). To account for this difference, user-centered measures will be defined then observed using an already secured data set. Some examples of variability measures are OD travel time, passenger transfer times, passenger waiting times, train punctuality, etc. The main data sets used for this project is the pedestrian tracking data from the Lausanne and Basel train stations and possibly some effective train time tables.

Meritxell Pacheco

Meritxell Pacheco has been a member of the laboratory from Sep 01, 2015 to Dec 31, 2020

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Meritxell Pacheco.

Journal articles

2022

Pacheco M., Gendron B., Sharif Azadeh S., Bierlaire M. (2022). A Lagrangian decomposition scheme for choice-based optimization. Computers & Operations Research 148 :105985


@Article{PachGendSharBier22,
  author = {Meritxell Pacheco and Bernard Gendron and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {A Lagrangian decomposition scheme for choice-based optimization},
  journal = {Computers \& Operations Research},
  year = {2022},
  volume = {148},
  pages = {105985},
  DOI = {10.1016/j.cor.2022.105985},
  note = {Accepted on Jul 29, 2022}}}

2021


@Article{PachSharBierGend21,
  author = {Meritxell Pacheco and Michel Bierlaire and Bernard Gendron and Shadi {Sharif Azadeh}},
  title = {Integrating advanced discrete choice models in mixed integer linear optimization },
  journal = {Transportation Research Part B: Methodological},
  year = {2021},
  volume = {146},
  pages = {26-49},
  DOI = {10.1016/j.trb.2021.02.003},
  note = {Accepted on Feb 09, 2021}}}

Book chapters

2024


@InProceedings{SharPachBier24,
  author = {Shadi {Sharif Azadeh} and Meritxell Pacheco and Michel Bierlaire},
  title = {Decomposition Methods for Choice-Based Optimization Models},
  year = {2024},
  booktile = {Combinatorial Optimization and Applications},
  editor = {Crainic and  T.G. and  Gendreau and  M. and  Frangioni and  A. },
  volume = {358},
  series = {Series in Operations Research \& Management Science},
  publisher = {Springer},
  address = {Cham.}}}

Technical reports

2021

Pacheco M., Gendron B., Sharif Azadeh S., Bierlaire M. (2021). A Lagrangian decomposition scheme for choice-based optimization. Report TRANSP-OR 210827


@TechReport{PachGendSharBier21,
  author = {Meritxell Pacheco and Bernard Gendron and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {A Lagrangian decomposition scheme for choice-based optimization},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2021},
  type = {Technical Report},
  number = {TRANSP-OR 210827},
  address = {Lausanne, Switzerland}}}

2017

Pacheco M., Sharif Azadeh S., Bierlaire M., Gendron B. (2017). Integrating advanced discrete choice models in mixed integer linear optimization. Report TRANSP-OR 170714


@TechReport{PacShaBieGen2017,
  author = {Meritxell Pacheco and Shadi {Sharif Azadeh} and Michel Bierlaire and Bernard Gendron},
  title = {Integrating advanced discrete choice models in mixed integer linear optimization},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2017},
  type = {Technical Report},
  number = {TRANSP-OR 170714},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2018


@InProceedings{PacGenLurShaBie_STRC2018,
  author = {Meritxell Pacheco and Bernard Gendron and Virginie Lurkin and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {A Lagrangian relaxation technique for the demand-based benefit maximization problem},
  booktime = {Proceedings of the 18th Swiss Transport Research Conference (STRC), 16-18 May},
  year = {2018},
  address = {Ascona, Switzerland}}}

2017


@InProceedings{PacShaBieGen_STRC2017,
  author = {Meritxell Pacheco and Shadi {Sharif Azadeh} and Michel Bierlaire and Bernard Gendron},
  title = {Integrating advanced demand models within the framework of mixed integer linear problems: A Lagrangian relaxation method for the uncapacitated case},
  booktime = {Proceedings of the 17th Swiss Transport Research Conference (STRC), 17-19 May},
  year = {2017},
  address = {Ascona, Switzerland}}}

2016


@InProceedings{PacShaBie_STRC2016,
  author = {Meritxell Pacheco and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {A new mathematical representation of demand using choice-based optimization method},
  booktime = {Proceedings of the 16th Swiss Transport Research Conference (STRC), 18-20 May},
  year = {2016},
  address = {Ascona, Switzerland}}}

Talks

2020

Pacheco M., Gendron B., Bierlaire M., Sharif Azadeh S. A Lagrangian decomposition scheme for the choice-based optimization framework June 26, 2020. OR seminar, Erasmus University Rotterdam.


@Misc{PachecoErasmus2020,
  author = {Meritxell Pacheco and Bernard Gendron and Michel Bierlaire and Shadi {Sharif Azadeh}},
  title = {A Lagrangian decomposition scheme for the choice-based optimization framework},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/PachecoErasmus2020.pdf}},
  year = {2020},
  note = {Presented at OR seminar, Erasmus University Rotterdam}}}

2019

Pacheco M., Sharif Azadeh S., Bierlaire M. Passenger satisfaction maximization within a demand-based optimization framework May 16, 2019. 19th Swiss Transport Research Conference (STRC), Monte Verità, Ascona, Switzerland.


@Misc{Pacheco_STRC2019,
  author = {Meritxell Pacheco and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {Passenger satisfaction maximization within a demand-based optimization framework},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pacheco_STRC2019.pdf}},
  year = {2019},
  note = {Presented at 19th Swiss Transport Research Conference (STRC), Monte Verit\à, Ascona, Switzerland}}}

2018

Pacheco M., Gendron B., Lurkin V., Bierlaire M., Sharif Azadeh S. A Lagrangian relaxation technique for the demand-based benefit maximization problem September 14, 2018. Annual international conference of the German Operations Research Society (OR2018), Université libre de Bruxelles, Brussels, Belgium.


@Misc{Pacheco_GOR_2018,
  author = {Meritxell Pacheco and Bernard Gendron and Virginie Lurkin and Michel Bierlaire and Shadi {Sharif Azadeh}},
  title = {A Lagrangian relaxation technique for the demand-based benefit maximization problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pacheco_GOR_2018.pdf}},
  year = {2018},
  note = {Presented at Annual international conference of the German Operations Research Society (OR2018), Universit\é libre de Bruxelles, Brussels, Belgium}}}

Pacheco M., Gendron B., Lurkin V., Bierlaire M., Sharif Azadeh S. A Lagrangian relaxation technique for the demand-based benefit maximization problem September 06, 2018. hEART 2018, 7th Symposium of the European Association for Research in Transportation, National Technical University of Athens, Athens, Greece.


@Misc{Pacheco_hEART_2018,
  author = {Meritxell Pacheco and Bernard Gendron and Virginie Lurkin and Michel Bierlaire and Shadi {Sharif Azadeh}},
  title = {A Lagrangian relaxation technique for the demand-based benefit maximization problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pacheco_hEART_2018.pdf}},
  year = {2018},
  note = {Presented at hEART 2018, 7th Symposium of the European Association for Research in Transportation, National Technical University of Athens, Athens, Greece}}}

Pacheco M., Sharif Azadeh S., Gendron B., Bierlaire M., Lurkin V. Integrating discrete choice models in mixed integer linear programming to capture the interactions between supply and demand July 17, 2018. 15th International Conference on Travel Behavior Research, University of California Santa Barbara, Santa Barbara, CA, USA.


@Misc{Pacheco_IATBR_2018,
  author = {Meritxell Pacheco and Shadi {Sharif Azadeh} and Bernard Gendron and Michel Bierlaire and Virginie Lurkin},
  title = {Integrating discrete choice models in mixed integer linear programming to capture the interactions between supply and demand},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pacheco_IATBR_2018.pdf}},
  year = {2018},
  note = {Presented at 15th International Conference on Travel Behavior Research, University of California Santa Barbara, Santa Barbara, CA, USA}}}

Pacheco M., Gendron B., Lurkin V., Sharif Azadeh S., Gendron B. Lagrangian relaxation for the demand-based benefit maximization problem June 22, 2018. Workshop on Discrete Choice Models 2018, EPFL, Lausanne, Switzerland.


@Misc{Pacheco_WDCM_20178,
  author = {Meritxell Pacheco and Bernard Gendron and Virginie Lurkin and Shadi {Sharif Azadeh} and Bernard Gendron},
  title = {Lagrangian relaxation for the demand-based benefit maximization problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pacheco_WDCM_20178.pdf}},
  year = {2018},
  note = {Presented at Workshop on Discrete Choice Models 2018, EPFL, Lausanne, Switzerland}}}

Pacheco M., Gendron B., Lurkin V., Sharif Azadeh S., Bierlaire M. Lagrangian relaxation for the demand-based benefit maximization problem June 12, 2018. 16th Swiss Operations Research Days, Universität Bern, Bern, Switzerland.


@Misc{PachecoSORdays2018,
  author = {Meritxell Pacheco and Bernard Gendron and Virginie Lurkin and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {Lagrangian relaxation for the demand-based benefit maximization problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/PachecoSORdays2018.pdf}},
  year = {2018},
  note = {Presented at 16th Swiss Operations Research Days, Universit\ät Bern, Bern, Switzerland}}}

Pacheco M., Gendron B., Lurkin V., Sharif Azadeh S., Bierlaire M. A Lagrangian relaxation technique for the demand-based benefit maximization problem May 17, 2018. 18th Swiss Transport Research Conference (STRC), Monte Verità, Ascona, Switzerland.


@Misc{Pacheco_STRC_2018,
  author = {Meritxell Pacheco and Bernard Gendron and Virginie Lurkin and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {A Lagrangian relaxation technique for the demand-based benefit maximization problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pacheco_STRC_2018.pdf}},
  year = {2018},
  note = {Presented at 18th Swiss Transport Research Conference (STRC), Monte Verit\à, Ascona, Switzerland}}}

Pacheco M., Sharif Azadeh S., Bierlaire M., Gendron B. Integrating advanced discrete choice models in mixed integer linear optimization February 02, 2018. ORBEL 32 Conference , HEC Liège, Liège, Belgium.


@Misc{Pacheco_ORBEL_2018,
  author = {Meritxell Pacheco and Shadi {Sharif Azadeh} and Michel Bierlaire and Bernard Gendron},
  title = {Integrating advanced discrete choice models in mixed integer linear optimization},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pacheco_ORBEL_2018.pdf}},
  year = {2018},
  note = {Presented at ORBEL 32 Conference , HEC Li\ège, Li\ège, Belgium}}}

2017

Pacheco M., Sharif Azadeh S., Bierlaire M., Gendron B. A Lagrangian relaxation method for a choice-based optimization framework capturing the demand-supply interaction September 07, 2017. Annual international conference of the German Operations Research Society (OR2017), Freie Universität Berlin, Berlin, Germany.


@Misc{PachecoGORdays2017,
  author = {Meritxell Pacheco and Shadi {Sharif Azadeh} and Michel Bierlaire and Bernard Gendron},
  title = {A Lagrangian relaxation method for a choice-based optimization framework capturing the demand-supply interaction},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/PachecoGORdays2017.pdf}},
  year = {2017},
  note = {Presented at Annual international conference of the German Operations Research Society (OR2017), Freie Universit\ät Berlin, Berlin, Germany}}}

Pacheco M., Sharif Azadeh S., Bierlaire M., Gendron B. Integrating supply and demand within the framework of mixed integer linear problems July 19, 2017. 21st Conference of the International Federation of Operational Research Societies, IFORS, Québec City, Canada.


@Misc{Pacheco_IFORS_2017,
  author = {Meritxell Pacheco and Shadi {Sharif Azadeh} and Michel Bierlaire and Bernard Gendron},
  title = {Integrating supply and demand within the framework of mixed integer linear problems},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pacheco_IFORS_2017.pdf}},
  year = {2017},
  note = {Presented at 21st Conference of the International Federation of Operational Research Societies, IFORS, Qu\ébec City, Canada}}}

Pacheco M., Sharif Azadeh S., Bierlaire M., Gendron B. Lagrangian relaxation for the integration of discrete choice models in mixed integer linear problems June 30, 2017. 15th Swiss Operations Research Days, Université de Fribourg, Fribourg, Switzerland.


@Misc{PachecoSORdays2017,
  author = {Meritxell Pacheco and Shadi {Sharif Azadeh} and Michel Bierlaire and Bernard Gendron},
  title = {Lagrangian relaxation for the integration of discrete choice models in mixed integer linear problems},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/PachecoSORdays2017.pdf}},
  year = {2017},
  note = {Presented at 15th Swiss Operations Research Days, Universit\é de Fribourg, Fribourg, Switzerland}}}

Pacheco M., Sharif Azadeh S., Bierlaire M., Gendron B. Integrating advanced discrete choice models in mixed integer linear optimization June 22, 2017. Workshop on Discrete Choice Models 2017, EPFL, Lausanne, Switzerland.


@Misc{Pacheco_WDCM_2017,
  author = {Meritxell Pacheco and Shadi {Sharif Azadeh} and Michel Bierlaire and Bernard Gendron},
  title = {Integrating advanced discrete choice models in mixed integer linear optimization},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pacheco_WDCM_2017.pdf}},
  year = {2017},
  note = {Presented at Workshop on Discrete Choice Models 2017, EPFL, Lausanne, Switzerland}}}

Pacheco M., Sharif Azadeh S., Bierlaire M., Gendron B. Integrating advanced demand models within the framework of mixed integer linear problems: A Lagrangian relaxation method for the uncapacitated case May 18, 2017. 17th Swiss Transport Research Conference (STRC), Monte Verità, Ascona, Switzerland.


@Misc{Pacheco_STRC_2017,
  author = {Meritxell Pacheco and Shadi {Sharif Azadeh} and Michel Bierlaire and Bernard Gendron},
  title = {Integrating advanced demand models within the framework of mixed integer linear problems: A Lagrangian relaxation method for the uncapacitated case},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pacheco_STRC_2017.pdf}},
  year = {2017},
  note = {Presented at 17th Swiss Transport Research Conference (STRC), Monte Verit\à, Ascona, Switzerland}}}

2016

Pacheco M., Sharif Azadeh S., Bierlaire M. A new mathematical formulation to integrate supply and demand within a choice-based optimization framework October 13, 2016. Seminario en el Departamento de Ingeniería de Transporte y Logística, Pontificia Universidad Católica de Chile, Santiago de Chile, Chile.


@Misc{Pacheco_Pontif_2016,
  author = {Meritxell Pacheco and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {A new mathematical formulation to integrate supply and demand within a choice-based optimization framework},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pacheco_Pontif_2016.pdf}},
  year = {2016},
  note = {Presented at Seminario en el Departamento de Ingenier\ía de Transporte y Log\ística, Pontificia Universidad Cat\ólica de Chile, Santiago de Chile, Chile}}}

Pacheco M., Sharif Azadeh S., Bierlaire M. A new mathematical formulation to integrate supply and demand within a choice-based optimization framework October 12, 2016. Seminario ISCI, Universidad de Chile, Santiago de Chile, Chile.


@Misc{Pacheco_Chile_2016,
  author = {Meritxell Pacheco and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {A new mathematical formulation to integrate supply and demand within a choice-based optimization framework},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pacheco_Chile_2016.pdf}},
  year = {2016},
  note = {Presented at Seminario ISCI, Universidad de Chile, Santiago de Chile, Chile}}}

Pacheco M., Sharif Azadeh S., Bierlaire M. Integrating supply and demand within the framework of mixed integer optimization problems mixed integer optimization problems September 15, 2016. hEART 2016, 5th Symposium of the European Association for Research in Transportation, Delft University of Technology, Delft, Netherlands.


@Misc{Pacheco_hEART_2016,
  author = {Meritxell Pacheco and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {Integrating supply and demand within the framework of mixed integer optimization problems

mixed integer optimization problems},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pacheco_hEART_2016.pdf}},
  year = {2016},
  note = {Presented at hEART 2016, 5th Symposium of the European Association for Research in Transportation, Delft University of Technology, Delft, Netherlands}}}

Pacheco M., Sharif Azadeh S., Bierlaire M. A new mathematical formulation to integrate supply and demand within a choice-based optimization framework July 06, 2016. EURO 2016, Poznan, Poland.


@Misc{Pacheco_EURO_2016,
  author = {Meritxell Pacheco and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {A new mathematical formulation to integrate supply and demand within a choice-based optimization framework},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pacheco_EURO_2016.pdf}},
  year = {2016},
  note = {Presented at EURO 2016, Poznan, Poland}}}

Pacheco M., Sharif Azadeh S., Bierlaire M. Incorporating advanced behavioral models in mixed linear optimization June 14, 2016. Ninth Triennial Symposium on Transportation Analysis (TRISTAN IX), Oranjestad, Aruba.


@Misc{Pacheco_TRISTAN_2016,
  author = {Meritxell Pacheco and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {Incorporating advanced behavioral models in mixed linear optimization},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pacheco_TRISTAN_2016.pdf}},
  year = {2016},
  note = {Presented at Ninth Triennial Symposium on Transportation Analysis (TRISTAN IX), Oranjestad, Aruba}}}

Pacheco M., Sharif Azadeh S., Bierlaire M. A new mathematical formulation to integrate supply and demand within a choice-based optimization framework May 18, 2016. 16th Swiss Transport Research Conference (STRC), Monte Verità, Ascona, Switzerland.


@Misc{Pacheco_STRC_2016,
  author = {Meritxell Pacheco and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {A new mathematical formulation to integrate supply and demand within a choice-based optimization framework},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Pacheco_STRC_2016.pdf}},
  year = {2016},
  note = {Presented at 16th Swiss Transport Research Conference (STRC), Monte Verit\à, Ascona, Switzerland}}}

Awards

2017

Meritxell Pacheco. PhD mobility award 2017, Doctoral School Civil and Environmental Engineering (EDCE).
The PhD Mobility Award is given by the doctoral program in Civil and Environmental Engineering (EDCE) to encourage good PhD students within the program to go for an academic visit to an external research institution..

2016

Meritxell Pacheco. V Abertis International Research Award, International Abertis Chairs Network.
The Abertis International Research Prize in Transportation is awarded among the pool of national winning projects of the International Abertis Chairs Network..
Meritxell Pacheco. XIII Abertis Prize for Management of Transportation Infrastructures, Abertis-UPC Chair.
The Abertis Prize for research in management of transportation infrastructures is aimed at studies and unpublished research conducted by students at Spanish universities that address various aspects related to the management of transportation infrastructures and services..

Research projects

2016

Incorporating advanced behavioral models in mixed integer linear optimization

Discrete choice models are used for detailed representation of the "demand". However, their complexity makes mathematical formulations highly non convex in the explanatory variables. On the other hand, Mixed Integer Linear Programs (MILP) are optimization problems with discrete variables that are used in many applications to design and configure the "supply". In this project, we propose a new modeling framework that allows to include any random utility model in a mixed integer optimization formulation. The heterogeneity of demand is captured within the general choice model framework and the offers are tailored in a way that is beneficial for users as wells as providers. The main objective of the project is to obtain a framework that is both general, so that it can be applied in many applications, and operational, so that it can be used in practice.
- Apr 01, 2016 - Mar 31, 2019
- Sponsor: Swiss National Science Foundation
- Principal investigator: Michel Bierlaire
- Project manager: Shadi Sharif Azadeh
- Collaborator: Meritxell Pacheco

EPFL courses

Fall 2019

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Tim Hillel, Meritxell Pacheco, Janody Pougala, Nicola Ortelli
- Webpage: https://moodle.epfl.ch/course/view.php?id=1001

Fall 2018

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Meritxell Pacheco, Yuki Oyama, Nicholas Molyneaux
- Webpage: http://transp-or.epfl.ch/courses/dca2018

Fall 2017

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Meritxell Pacheco, Anna Fernandez Antolin, Evanthia Kazagli, Yuki Oyama
- Webpage: http://transp-or.epfl.ch/courses/dca2017

Spring 2017

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Virginie Lurkin, Mor Kaspi
- Teaching assistants: Tom�s Robenek, Stefan Binder, Iliya Markov, Meritxell Pacheco
- Webpage: http://moodle.epfl.ch/enrol/index.php?id=15132

Fall 2016

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Evanthia Kazagli, Anna Fernandez Antolin, Meritxell Pacheco
- Webpage: http://transp-or.epfl.ch/courses/dca2016

Various lectures

2019

Bayesian Estimation; Individual Prediction.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Mar 27, 2019
- Lecturer: Rico Krueger
- Assistants: Tim Hillel, Selin Atac, Meritxell Pacheco
Logit Mixtures; Combining RP and SP data.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Mar 26, 2019
- Lecturer: Meritxell Pacheco
- Assistants: Tim Hillel, Rico Krueger
Nested Logit; Aggregate Forecasting.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Mar 25, 2019
- Lecturer: Selin Atac
- Assistants: Meritxell Pacheco, Yuki Oyama, Tim Hillel
Introduction; Logit Estimation; Specification Testing.
- Discrete Choice Analysis: Predicting Individual Behavior and Market Demand, EPFL, Lausanne, Switzerland
- Mar 24, 2019
- Lecturer: Tim Hillel
- Assistants: Meritxell Pacheco, Yuki Oyama, Selin Atac

2018

Logit Mixture; Hybrid Choice Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 14, 2018
- Lecturer: Meritxell Pacheco
- Assistants: Anna Fernandez Antolin, Yuki Oyama, Ma�lle Zimmermann
Forecasting; Combining RP & SP.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 13, 2018
- Lecturer: Meritxell Pacheco
- Assistants: Anna Fernandez Antolin, Yuki Oyama, Ma�lle Zimmermann
Specification Testing; Nested Logit.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 12, 2018
- Lecturer: Anna Fernandez Antolin
- Assistants: Meritxell Pacheco, Yuki Oyama, Ma�lle Zimmermann
Introduction; Logit Estimation.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 11, 2018
- Lecturer: Anna Fernandez Antolin
- Assistants: Meritxell Pacheco, Yuki Oyama, Ma�lle Zimmermann

2017

Hybrid Choice Models (ctd).
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 16, 2017 - Feb 16, 2017
- Lecturer: Matthieu de Lapparent
- Assistants: Evanthia Kazagli, Meritxell Pacheco, Anna Fernandez Antolin
Logit Mixture; Hybrid Choice Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 15, 2017 - Feb 15, 2017
- Lecturer: Matthieu de Lapparent
- Assistants: Evanthia Kazagli, Meritxell Pacheco, Anna Fernandez Antolin
Forecasting; Combining RP and SP.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 14, 2017 - Feb 14, 2017
- Lecturer: Meritxell Pacheco
- Assistants: Evanthia Kazagli, Matthieu de Lapparent, Anna Fernandez Antolin
Nested logit; Specification testing.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 13, 2017 - Feb 13, 2017
- Lecturer: Evanthia Kazagli
- Assistants: Meritxell Pacheco, Matthieu de Lapparent, Anna Fernandez Antolin
Introduction; Logit estimation.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 12, 2017 - Feb 12, 2017
- Lecturer: Evanthia Kazagli
- Assistants: Meritxell Pacheco, Matthieu de Lapparent, Anna Fernandez Antolin

2016

Introduction; binary choice.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 20, 2016 - Mar 20, 2016
- Lecturer: Evanthia Kazagli
- Assistants: Anna Fernandez Antolin, Meritxell Pacheco

Master theses

2019-2020

Investigations on a pilot-survey for modelling mobility behaviours in Switzerland, René Lugrin (Civil Engineering)
- Supervision: Meritxell Pacheco, Michel Bierlaire
- External expert: Sylvie Garda

2019

Disruption-caused railway timetable rescheduling problem and its solution, Oliver Buschor (Civil Engineering)
- Supervision: Meritxell Pacheco, Stefano Bortolomiol, Michel Bierlaire
- External expert: Hellwig Matthias

Semester projects

2020

Welfare-maximizing design of a transportation system, Benjamin Nicolas--Noir

Supervision: Meritxell Pacheco, Michel Bierlaire
The simulation-based linear representation of a discrete choice introduced allows to linearly approximate the expected maximum utility associated with each individual and simulation draw, which provides a measure of consumer surplus. This is of special interest in the case of advanced choice models (e.g., mixture of logit models), as the expected maximum utility presents a highly nonlinear expression. Hence, a linear formulation for the consumer surplus facilitates the derivation of a generalized objective function of some measure of social welfare as the policy objective, which can be employed to assess the performance of different urban transportation policies. The objective of the project is to provide linear (or piecewise linear) formulations to the different aspects that are included in a published non-linear optimization problem, and compare their performance with respect to the original approach, both in terms of computational time and quality of the obtained solution. Additionally, the impact of the assumptions that lead to nonlinear expressions will be evaluated.

2019

Disruption-caused railway timetable rescheduling problem and its solution, Oliver Mathias Buschor

Supervision: Nikola Obrenovic, Meritxell Pacheco, Michel Bierlaire
In railway networks, unexpected disruptions may occur for different reasons and cause delays, service denial, and, consequently, passenger inconvenience. This planned master project will tackle the railway timetable rescheduling problem from a macroscopic and mesoscopic point of view in case of unexpected disruptions. The master project will consider several remediation strategies such as canceling, delaying or rerouting the trains, or introduction of other transportation modes. The other important aspect of the planned master project is its applicability in practice. Hence, the outcome of the project will be the algorithm for timetable rescheduling which will be implemented in the commercial software suite Viriato. The main functionality of Viriato is the train timetabling and it is produced by the company SMA und Partner AG. In order to prepare the candidate for the master project, this pre-study project will include several introductory tasks related to the problem comprehension, solutions approach and algorithm implementation. Therefore, the tasks of this project will be: 1) review of the relevant literature, 2) demand data preprocessing with the purpose of matching infrastructure and demand data, and 3) obtaining the knowledge of the Viriato software and its Algorithm Platform which enables extension of Viriato with third party algorithms.

Passenger satisfaction maximization under budget constraints, Tatiana Moavensadeh-Ghasnavi

Supervision: Meritxell Pacheco, Yuki Oyama, Michel Bierlaire
This project aims at characterizing a passenger satisfaction application relying on a demand-based optimization framework, which integrates discrete choice models (state-of-the-art for the mathematical modeling of the demand) n Mixed Integer Linear Programming (MILP) models, which are usually considered to address supply decisions such as the price of a service or the number of units to produce of a certain item. This formulation allows us to express passenger satisfaction directly in terms of the expected maximum utility of the future scenario, which simplifies notably the common representation relying on the consumer surplus. The objective is the maximization of the passenger satisfaction in a short-distance commuting context while accounting for different settings with respect to road tolling and investment in public transportation.

2018

Optimization of school accessibility in developing countries, Yassine El Ouazzani, Oliver Mathias Buschor (Civil Engineering)

Supervision: Riccardo Scarinci, Meritxell Pacheco, Michel Bierlaire
The Global Program for Safer Schools (GPSS) focuses on risks linked to education infrastructure. The program aims to save lives and reduce the physical impact of disasters on school infrastructure. We are working with the Kyrgyz Republic Government to improve the capacity to respond to disasters, providing safer and quality learning environment for children, and managing the cost of disasters and climate shocks. This semester project/master thesis proposes a methodology to optimize educational infrastructure networks based on accessibility; and proposes solutions to improve the performance of educational infrastructure networks. In other words, it optimizes the location and the dimension of school buildings. Several factors are included such as transportation network, home location of the students and mobility patterns. The results is a methodology to suggest investments to reduce the risks in case of disaster. The cities of Bishkek in the Kyrgyz Republic is used as a case study. Methodologies from optimization, programming (Java) and geographical information system (GIS) will be used for completing this project.

Locating charging station for electric taxis, Oliver Mathias Buschor, Younes Bensaid

Supervision: Zhengchao Wang, Meritxell Pacheco, Michel Bierlaire
This project aims at locating the position of charging station for electric taxis. Currently, transportation is transforming to be more sustainable. The electric vehicle is a promising way to achieve such a goal. However, charger unavailability is among one of the main issues that hindered the adoption of the electric vehicle. To contribute to mitigating such issue, this project is dened accordingly to optimize the charging station location. The location problem is a classic problem in the operational research domain. It is usually solved using a p-median, p-mean, set covering, or flow covering method. The goal of this research is to apply these methods to decide the location of charging stations in San Francisco using taxi tracking data and compare the dierence in the end. This project is composed of three stages. First, the student should work on mapping the taxi tracking data on the map using map-matching techniques. Then, the student should apply point-based location methods (p-median, p- mean, set-covering) to find the optimal location. The student is not required to apply all the relevant methods but chooses one or two in which he is interested. After, the students will apply and characterize a flow-based method. Finally, an analysis of the results is performed to evaluate the results obtained.

Design of a stated-preferences survey for a high-speed vacuum transportation mode, Thibaut Richard et Martí Montesinos Ferrer

Supervision: Meritxell Pacheco, Yuki Oyama, Michel Bierlaire
Since the high-speed vacuum transportation technology represents an innovative transportation mode, it is necessary to obtain data from surveys of hypothetical market/situations, the so-called stated-preferences (SP) surveys. The goal of this project is to design an SP questionnaire to evaluate the impact of this innovative transportation mode and to measure some indicators (such as the willingness-to-pay). A pilot test of the preliminary survey in a small sample will be carried out in order to evaluate the quality of the questionnaire. The main findings will be used to define the final survey that will be distributed to a representative sample of the population by a specialized company.

Safer schools thanks to an improved transport access in developing countries, Zora Oswald

Supervision: Riccardo Scarinci, Meritxell Pacheco, Michel Bierlaire
The Global Program for Safer Schools (GPSS) focuses on risks linked to education infrastructure. The program aims to save lives and reduce the physical impact of disasters on school infrastructure. We are working with the Kyrgyz Republic Government to improve the capacity to respond to disasters, providing safer and quality learning environment for children, and managing the cost of disasters and climate shocks. This semester project/master thesis proposes a methodology to assess and optimize educational infrastructure networks based on accessibility; and proposes solutions to improve the performance of educational infrastructure networks. In other words, it evaluates the risks based on the school network, including parameters like transportation network, home location of the students and mobility patterns. The results is a methodology to suggest investments to reduce the risks in case of disaster. Two case studies will be carry on in the cities of Bishkek and Osh in the Kyrgyz Republic. Methodologies from transportation studies, geographical information system (GIS) and programming will be used for completing this project.

2017-2018

Integrating demand and supply in the context of airlines, Thibaut Richard et Gabriel Curis (Civil Engineering)

Supervision: Meritxell Pacheco, Anna Fernandez Antolin, Michel Bierlaire

2017

Modeling purchases of new cars for 2015: a comparison between countries, Martí Montesinos (Civil Engineering)

Supervision: Anna Fernandez Antolin, Meritxell Pacheco, Michel Bierlaire
We are interested in analyzing the behavior of people when they face the decision to buy a new car. We have a large dataset containing information of new car purchases, where respondents answered to several questions related to their socioeconomic characteristics and to the attributes of their recently purchased car. We have developed a framework that has been applied to the data corresponding to France in 2014. The objective of this semester project is to apply it to 2015 for several countries (France, Germany, Italy and Spain) and to obtain and predict market shares in each of the countries as well as to compute willingness to pay towards different attributes. Moreover, the student will analyze the difference between the different countries and between the different years.

2016-2017

Investigating the role of attitudes in the purchase of new cars, Nicola Ortelli

Supervision: Anna Fernandez Antolin, Meritxell Pacheco, Michel Bierlaire
Attitudes and perceptions play an important role in decision-making processes. We are interested in new car purchases, and how attitudes and perceptions play a role in this context. We have a large dataset containing information of new car purchases, where respondents answered to several attitudinal questions. The objective of this semester project is to analyze these attitudinal questions, starting with principal component analysis. The study will be expanded to see how these attitudes affect purchases of new cars, and of electric vehicles in particular.

2016

Pricing and capacity allocation strategies for a demand-based revenues maximization problem, Jonathan Lachkar (Civil Engineering)

Supervision: Meritxell Pacheco, Virginie Lurkin, Michel Bierlaire
The integration of customer behavioural models in optimization provides a better understanding of the preferences of clients (the demand) to policy makers while planning for their systems (the supply). These preferences are formalized with discrete choice models, and the corresponding optimization models where supply and demand closely interact are associated with (mixed) integer optimization problems. One concrete application of this integration consists of an operator selling services to a market, each service at a given price to a finite number of customers, called the capacity of the service. We are interested in finding the best strategy in terms of pricing and capacity allocation in order to maximize the revenues of the operator. The project objectives can be tailored for both Master or Semester project students.

Stefano Moret

Stefano Moret has been a member of the laboratory from Jan 01, 2014 to Nov 30, 2017

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Stefano Moret.

Journal articles

2020

Moret S., Babonneau F., Bierlaire M., Maréchal F. (2020). Overcapacity in European power systems: analysis and robust optimization approach. Applied energy 259 (113970)


@Article{MoreBaboBierMare19,
  author = {Stefano Moret and Fr\'ed\'eric Babonneau and Michel Bierlaire and Fran\c{c}ois Mar\'echal},
  title = {Overcapacity in European power systems: analysis and robust optimization approach},
  journal = {Applied energy},
  year = {2020},
  volume = {259},
  number = {113970},
  DOI = {10.1016/j.apenergy.2019.113970},
  note = {Accepted on Oct 08, 2019}}}

Moret S., Babonneau F., Bierlaire M., Maréchal F. (2020). Decision support for strategic energy planning: a complete robust optimization framework. European Journal of Operational Research 280 :539-554


@Article{MoreBaboMareBier19,
  author = {Stefano Moret and Fr\'ed\'eric Babonneau and Michel Bierlaire and Fran\c{c}ois Mar\'echal},
  title = {Decision support for strategic energy planning: a complete robust optimization framework},
  journal = {European Journal of Operational Research},
  year = {2020},
  volume = {280},
  pages = {539-554},
  DOI = {10.1016/j.ejor.2019.06.015},
  note = {Accepted on Apr 28, 2019}}}

2017

Moret S., Codina Girones V., Bierlaire M., Maréchal F. (2017). Characterization of input uncertainties in strategic energy planning models. Applied energy 202 :597-617


@Article{MoreCodiBierMare17,
  author = {Stefano Moret and Victor {Codina Girones} and Michel Bierlaire and Fran\c{c}ois Mar\'echal},
  title = {Characterization of input uncertainties in strategic energy planning models},
  journal = {Applied energy},
  year = {2017},
  volume = {202},
  pages = {597-617},
  DOI = {10.1016/j.apenergy.2017.05.106},
  note = {Accepted on May 13, 2017}}}

2016

Moret S., Bierlaire M., Maréchal F. (2016). Robust optimization for strategic energy planning. Informatica 27 (3):625-648

Long-term planning for energy systems is often based on deterministic economic optimization and forecasts of fuel prices.When fuel price evolution is underestimated, the consequence is a low penetration of renewables and more efficient technologies in favour of fossil alternatives. This work aims at overcoming this issue by assessing the impact of uncertainty on energy planning decisions. A classification of uncertainty in energy systems decision-making is performed. Robust optimization is then applied to a Mixed-Integer Linear Programming problem, representing the typical trade-offs in energy planning. It is shown that in the uncertain domain investing in more efficient and cleaner technologies can be economically optimal.
```
@Article{MoreBierMare15,
  author = {Stefano Moret and Michel Bierlaire and Fran\c{c}ois Mar\'echal},
  title = {Robust optimization for strategic energy planning},
  journal = {Informatica},
  year = {2016},
  volume = {27},
  number = {3},
  pages = {625-648},
  DOI = {10.15388/Informatica.2016.103},
  note = {Accepted on Nov 25, 2015}}}
```

Technical reports

2014

Moret S., Bierlaire M., Maréchal F. (2014). Robust Optimization for Strategic Energy Planning. Report TRANSP-OR 141115


@TechReport{MoreBierMare14,
  author = {Stefano Moret and Michel Bierlaire and Fran\c{c}ois Mar\'echal},
  title = {Robust Optimization for Strategic Energy Planning},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2014},
  type = {Technical Report},
  number = {TRANSP-OR 141115},
  address = {Lausanne, Switzerland}}}

Semester projects

2016

Strategic Energy Planning under Uncertainty, Cyprien Say (Civil Engineering)

Supervision: Stefano Moret, Shadi Sharif Azadeh, Michel Bierlaire
The main goal of the project is to classify parameter uncertainty (i.e. defining ranges of variations or probability distribution functions) for the Swiss energy system in the year 2035 and evaluate its impact on energy planning decisions.

Iliya Markov

Iliya Markov has been a member of the laboratory from Sep 01, 2013 to Dec 31, 2017

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Iliya Markov.

Journal articles

2020

Markov I., Bierlaire M., Cordeau J., Maknoon Y., Varone S. (2020). Waste Collection Inventory Routing with Non-stationary Stochastic Demands. Computers & Operations Research 113 (104798)


@Article{MarkBierCordMaknVaro19,
  author = {Iliya Markov and Michel Bierlaire and Jean-Fran\c{c}ois Cordeau and Yousef Maknoon and Sacha Varone},
  title = {Waste Collection Inventory Routing with Non-stationary Stochastic Demands},
  journal = {Computers \& Operations Research},
  year = {2020},
  volume = {113},
  number = {104798},
  DOI = {10.1016/j.cor.2019.104798},
  note = {Accepted on Sep 03, 2019}}}

2018


@Article{MarkBierCordMaknVaro2017,
  author = {Iliya Markov and Michel Bierlaire and Jean-Fran\c{c}ois Cordeau and Yousef Maknoon and Sacha Varone},
  title = {A Unified Framework for Rich Routing Problems with Stochastic Demands},
  journal = {Transportation Research Part B: Methodological},
  year = {2018},
  volume = {114},
  pages = {213-240},
  DOI = {10.1016/j.trb.2018.05.015},
  note = {Accepted on May 24, 2018}}}

2017

Scarinci R., Markov I., Bierlaire M. (2017). Network design of a transport system based on accelerating moving walkways. Transportation Research Part C: Emerging Technologies 80 :310�328

Pollution, congestion and urbanistic considerations are leading to a change in the use of private vehicles in dense city centers. More frequently, the last-mile is covered with systems such as public transport, car sharing and bike sharing as well as an increase in walking and cycling. Following this trend, we assume a hypothetical scenario where the use of private cars is strongly limited in dense urban areas, and innovative transport modes must be used. This work investigates a futuristic system based on a network of accelerating moving walkways (AMW) to facilitate the movement of pedestrians in city centers where cars have been banned. Unlike constant speed moving walkways, AMWs can reach speeds of up to 15km/h thanks to an acceleration section. This paper presents a rigorous description of the system characteristics from a transportation point of view, develops a heuristic algorithm for the network design problem, and tests it on a real case study. Given a network of urban roads and an origin-destination demand, the optimization algorithm, which combines traffic assignment and supply modification, explores the trade-off curve between the total travel time and capital cost of the infrastructure. The results give practical insight on the possible dimensioning of the system, show the optimal network designs, and how these vary with a reduction of the available budget. This paper investigates for the first time the use of AMWs at a network scale, and provides results useful for analyzing the system feasibility. The results on travel time, investment budget and payback period indicates that AMWs could be an effective mode of transport in cities.
```
@Article{ScaMarBie_2017,
  author = {Riccardo Scarinci and Iliya Markov and Michel Bierlaire},
  title = {Network design of a transport system based on accelerating moving walkways},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2017},
  volume = {80},
  pages = {310{\textendash}328},
  DOI = {10.1016/j.trc.2017.04.016},
  note = {Accepted on Apr 19, 2017}}}
```

2016

Markov I., Varone S., Bierlaire M. (2016). Integrating a heterogeneous fixed fleet and a flexible assignment of destination depots in the waste collection VRP with intermediate facilities. Transportation Research Part B: Methodological 84 :256-273


@Article{MarkVaroBier16,
  author = {Iliya Markov and Sacha Varone and Michel Bierlaire},
  title = {Integrating a heterogeneous fixed fleet and a flexible assignment of destination depots in the waste collection VRP with intermediate facilities},
  journal = {Transportation Research Part B: Methodological},
  year = {2016},
  volume = {84},
  pages = {256-273},
  DOI = {10.1016/j.trb.2015.12.004}}}

Technical reports

2017

Markov I., Bierlaire M., Cordeau J., Maknoon Y., Varone S. (2017). A unified framework for rich routing problems with stochastic demands. Report TRANSP-OR 171025


@TechReport{Markov_TechreportUnified,
  author = {Iliya Markov and Michel Bierlaire and Jean-Fran\c{c}ois Cordeau and Yousef Maknoon and Sacha Varone},
  title = {A unified framework for rich routing problems with stochastic demands},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2017},
  type = {Technical Report},
  number = {TRANSP-OR 171025},
  address = {Lausanne, Switzerland}}}

Scarinci R., Markov I., Bierlaire M. (2017). Network design of a transport system based on accelerating moving walkways. Report TRANSP-OR 170123


@TechReport{ScaMarBie_AMWopt_2017,
  author = {Riccardo Scarinci and Iliya Markov and Michel Bierlaire},
  title = {Network design of a transport system based on accelerating moving walkways},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2017},
  type = {Technical Report},
  number = {TRANSP-OR 170123},
  address = {Lausanne, Switzerland}}}

2016

Markov I., Bierlaire M., Cordeau J., Maknoon Y., Varone S. (2016). Inventory routing with non-stationary stochastic demands. Report TRANSP-OR 160825


@TechReport{Markov_TechreportWP5,
  author = {Iliya Markov and Michel Bierlaire and Jean-Fran\c{c}ois Cordeau and Yousef Maknoon and Sacha Varone},
  title = {Inventory routing with non-stationary stochastic demands},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2016},
  type = {Technical Report},
  number = {TRANSP-OR 160825},
  address = {Lausanne, Switzerland}}}

2015

Markov I., Varone S., Bierlaire M. (2015). The waste collection VRP with intermediate facilities, a heterogeneous fixed fleet and a flexible assignment of origin and destination depot. Report TRANSP-OR 150212


@TechReport{MarVarBier2015,
  author = {Iliya Markov and Sacha Varone and Michel Bierlaire},
  title = {The waste collection VRP with intermediate facilities, a heterogeneous fixed fleet and a flexible assignment of origin and destination depot},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2015},
  type = {Technical Report},
  number = {TRANSP-OR 150212},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2017

Markov I., Bierlaire M., Cordeau J., Maknoon Y., Varone S. (2017) A general framework for routing problems with stochastic demands. Proceedings of the 17th Swiss Transport Research Conference (STRC), May, 17-19, Ascona, Switzerland


@InProceedings{Markov_STRC2017,
  author = {Iliya Markov and Michel Bierlaire and Jean-Fran\c{c}ois Cordeau and Yousef Maknoon and Sacha Varone},
  title = {A general framework for routing problems

with stochastic demands},
  booktime = {Proceedings of the 17th Swiss Transport Research Conference (STRC), May, 17-19},
  year = {2017},
  address = {Ascona, Switzerland}}}

2015


@InProceedings{MarLappBierVar_STRC2015,
  author = {Iliya Markov and Matthieu {de Lapparent} and Michel Bierlaire and Sacha Varone},
  title = {Modeling a waste disposal process via a discrete mixture of count data models},
  booktime = {Proceedings of the 15th Swiss Transport Research Conference (STRC), April 15-17},
  year = {2015},
  address = {Ascona, Switzerland}}}

2014

Markov I., Varone S., Bierlaire M. (2014) Vehicle routing for a complex waste collection problem. Proceedings of the 14th Swiss Transport Research Conference (STRC), May, 14-16, Ascona, Switzerland


@InProceedings{MarVarBier_STRC2014,
  author = {Iliya Markov and Sacha Varone and Michel Bierlaire},
  title = {Vehicle routing for a complex waste collection problem},
  booktime = {Proceedings of the 14th Swiss Transport Research Conference (STRC), May, 14-16},
  year = {2014},
  address = {Ascona, Switzerland}}}

Talks

2017

Markov I., Bierlaire M., Cordeau J., Varone S. A unified modeling and solution framework for stochastic routing problems September 14, 2017. hEART 2017 - 6th Symposium of the European Association for Research in Transportation, Technion - Israel Institute of Technology, Haifa, Israel.


@Misc{Markov_hEART2017,
  author = {Iliya Markov and Michel Bierlaire and Jean-Fran\c{c}ois Cordeau and Sacha Varone},
  title = {A unified modeling and solution framework for stochastic routing problems},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Markov_hEART2017.pdf}},
  year = {2017},
  note = {Presented at hEART 2017 - 6th Symposium of the European Association for Research in Transportation, Technion - Israel Institute of Technology, Haifa, Israel}}}

Markov I., Bierlaire M., Cordeau J., Maknoon Y., Varone S. A unified framework for rich routing problems with stochastic demands July 11, 2017. Verolog 2017 - Sixth meeting of the EURO Working Group on Vehicle Routing and Logistics Optimization, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.


@Misc{Markov_VeRoLog2017,
  author = {Iliya Markov and Michel Bierlaire and Jean-Fran\c{c}ois Cordeau and Yousef Maknoon and Sacha Varone},
  title = {A unified framework for rich routing problems with stochastic demands},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Markov_VeRoLog2017.pdf}},
  year = {2017},
  note = {Presented at Verolog 2017 - Sixth meeting of the EURO Working Group on Vehicle Routing and Logistics Optimization, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands}}}

Markov I., Bierlaire M., Cordeau J., Maknoon Y., Varone S. A general framework for routing problems with stochastic demands May 17, 2017. 17th Swiss Transport Research Conference (STRC), Ascona, Switzerland.


@Misc{Markov_STRC2017,
  author = {Iliya Markov and Michel Bierlaire and Jean-Fran\c{c}ois Cordeau and Yousef Maknoon and Sacha Varone},
  title = {A general framework for routing problems

with stochastic demands},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Markov_STRC2017.pdf}},
  year = {2017},
  note = {Presented at 17th Swiss Transport Research Conference (STRC), Ascona, Switzerland}}}

2016

Markov I., Bierlaire M., Cordeau J., Maknoon Y., Varone S. Waste collection inventory routing with non-stationary stochastic demands September 16, 2016. hEART 2016 - 5th Symposium of the European Association for Research in Transportation, TU Delft, Delft, The Netherlands.


@Misc{Markov_hEART2016,
  author = {Iliya Markov and Michel Bierlaire and Jean-Fran\c{c}ois Cordeau and Yousef Maknoon and Sacha Varone},
  title = {Waste collection inventory routing with non-stationary stochastic demands},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Markov_hEART2016.pdf}},
  year = {2016},
  note = {Presented at hEART 2016 - 5th Symposium of the European Association for Research in Transportation, TU Delft, Delft, The Netherlands}}}

Markov I., Bierlaire M., Cordeau J., Maknoon Y., Varone S. Integrating demand uncertainty in inventory routing for recyclable waste collection September 09, 2016. 14th Join Operattions Research Days, Università della Svizzera italiana, Lugano, Switzerland.


@Misc{Markov_ORDays2016,
  author = {Iliya Markov and Michel Bierlaire and Jean-Fran\c{c}ois Cordeau and Yousef Maknoon and Sacha Varone},
  title = {Integrating demand uncertainty in inventory routing

for recyclable waste collection},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Markov_ORDays2016.pdf}},
  year = {2016},
  note = {Presented at 14th Join Operattions Research Days, Universit\à della Svizzera italiana, Lugano, Switzerland}}}

Markov I., Maknoon Y., Cordeau J., Varone S., Bierlaire M. Waste collection inventory routing with non-stationary stochastic demands June 17, 2016. TRISTAN IX, Oranjestad, Aruba.


@Misc{Markov_TRISTAN2016,
  author = {Iliya Markov and Yousef Maknoon and Jean-Fran\c{c}ois Cordeau and Sacha Varone and Michel Bierlaire},
  title = {Waste collection inventory routing with non-stationary stochastic demands},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Markov_TRISTAN2016.pdf}},
  year = {2016},
  note = {Presented at TRISTAN IX, Oranjestad, Aruba}}}

Markov I., Maknoon Y., Cordeau J., Varone S., Bierlaire M. Waste collection inventory routing with non-stationary stochastic demands June 06, 2016. Verolog 2016 - Fifth meeting of the EURO Working Group on Vehicle Routing and Logistics Optimization, Ecole des Mines de Nantes, Nantes, France.


@Misc{Markov_Verolog2016,
  author = {Iliya Markov and Yousef Maknoon and Jean-Fran\c{c}ois Cordeau and Sacha Varone and Michel Bierlaire},
  title = {Waste collection inventory routing with non-stationary stochastic demands},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Markov_Verolog2016.pdf}},
  year = {2016},
  note = {Presented at Verolog 2016 - Fifth meeting of the EURO Working Group on Vehicle Routing and Logistics Optimization, Ecole des Mines de Nantes, Nantes, France}}}

Markov I., Maknoon Y., Cordeau J., Varone S., Bierlaire M. Inventory routing with non-stationary stochastic demands May 19, 2016. 16th Swiss Transport Research Conference (STRC), Ascona, Switzerland.


@Misc{Markov_STRC2016,
  author = {Iliya Markov and Yousef Maknoon and Jean-Fran\c{c}ois Cordeau and Sacha Varone and Michel Bierlaire},
  title = {Inventory routing with non-stationary stochastic demands},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Markov_STRC2016.pdf}},
  year = {2016},
  note = {Presented at 16th Swiss Transport Research Conference (STRC), Ascona, Switzerland}}}

2015

Markov I., Maknoon Y., de Lapparent M., Cordeau J., Varone S., Bierlaire M. Vehicle routing and demand forecasting in recyclable waste collection November 26, 2015. CIRRELT Seminar, Centre interuniversitaire de recherche sur les réseaux d'entreprise, la logistique et le transport, Montréal,Canada.


@Misc{Markov_CIRRELT2015,
  author = {Iliya Markov and Yousef Maknoon and Matthieu {de Lapparent} and Jean-Fran\c{c}ois Cordeau and Sacha Varone and Michel Bierlaire},
  title = {Vehicle routing and demand forecasting in recyclable waste collection},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Markov_CIRRELT2015.pdf}},
  year = {2015},
  note = {Presented at CIRRELT Seminar, Centre interuniversitaire de recherche sur les r\éseaux d'entreprise, la logistique et le transport, Montr\éal,Canada}}}

Markov I., de Lapparent M., Varone S., Bierlaire M. Towards an integrated approach for demand forecasting and vehicle routing in recyclable waste collection September 11, 2015. hEART 2015 - 4th Symposium of the European Association for Research in Transportation, DTU, Copenhagen.


@Misc{Markov_hEART2015,
  author = {Iliya Markov and Matthieu {de Lapparent} and Sacha Varone and Michel Bierlaire},
  title = {Towards an integrated approach for demand forecasting and vehicle routing in recyclable waste collection},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Markov_hEART2015.pdf}},
  year = {2015},
  note = {Presented at hEART 2015 - 4th Symposium of the European Association for Research in Transportation, DTU, Copenhagen}}}

Markov I., de Lapparent M., Varone S., Bierlaire M. Vehicle routing and demand forecasting in a generalized waste collection problem June 09, 2015. Verolog 2015 - Fourth meeting of the EURO Working Group on Vehicle Routing and Logistics Optimization, University of Vienna, Vienna, Austria.


@Misc{Markov_Verolog2015,
  author = {Iliya Markov and Matthieu {de Lapparent} and Sacha Varone and Michel Bierlaire},
  title = {Vehicle routing and demand forecasting in a generalized waste collection problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Markov_Verolog2015.pdf}},
  year = {2015},
  note = {Presented at Verolog 2015 - Fourth meeting of the EURO Working Group on Vehicle Routing and Logistics Optimization, University of Vienna, Vienna, Austria}}}

Markov I., de Lapparent M., Bierlaire M., Varone S. Modeling a waste disposal process via a discrete mixture of count data models April 16, 2015. 15th Swiss Transport Research Conference (STRC), Ascona, Switzerland.


@Misc{Markov_STRC2015,
  author = {Iliya Markov and Matthieu {de Lapparent} and Michel Bierlaire and Sacha Varone},
  title = {Modeling a waste disposal process via a discrete mixture of count data models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Markov_STRC2015.pdf}},
  year = {2015},
  note = {Presented at 15th Swiss Transport Research Conference (STRC), Ascona, Switzerland}}}

2014

Markov I., Varone S., Bierlaire M. Solving a complex waste collection routing problem with intermediate disposals September 12, 2014. hEART 2014 - 3rd Symposium of the European Association for Research in Transportation, University of Leeds, Leeds, UK.


@Misc{Markov_hEART2014,
  author = {Iliya Markov and Sacha Varone and Michel Bierlaire},
  title = {Solving a complex waste collection routing problem with intermediate disposals},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Markov_hEART2014.pdf}},
  year = {2014},
  note = {Presented at hEART 2014 - 3rd Symposium of the European Association for Research in Transportation, University of Leeds, Leeds, UK}}}

Markov I., Varone S., Bierlaire M. Vehicle routing for a complex waste collection problem June 23, 2014. Verolog 2014 - Third meeting of the EURO Working Group on Vehicle Routing and Logistics Optimization, University of Oslo, Oslo, Norway.


@Misc{Markov_VeRoLog2014,
  author = {Iliya Markov and Sacha Varone and Michel Bierlaire},
  title = {Vehicle routing for a complex waste collection problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Markov_VeRoLog2014.pdf}},
  year = {2014},
  note = {Presented at Verolog 2014 - Third meeting of the EURO Working Group on Vehicle Routing and Logistics Optimization, University of Oslo, Oslo, Norway}}}

Markov I., Varone S., Bierlaire M. Vehicle routing for a complex waste collection problem May 14, 2014. 14th Swiss Transport Research Conference (STRC), Ascona, Switzerland.


@Misc{Markov_STRC2014,
  author = {Iliya Markov and Sacha Varone and Michel Bierlaire},
  title = {Vehicle routing for a complex waste collection problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Markov_STRC2014.pdf}},
  year = {2014},
  note = {Presented at 14th Swiss Transport Research Conference (STRC), Ascona, Switzerland}}}

Markov I., Varone S., Bierlaire M. Waste collection routing with time windows and intermediate disposal trips May 09, 2014. 12th Joint Operations Research Days, EPFL, Lausanne, Switzerland.


@Misc{MarVarBier_ORDS2014,
  author = {Iliya Markov and Sacha Varone and Michel Bierlaire},
  title = {Waste collection routing with time windows and intermediate disposal trips},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/MarVarBier_ORDS2014.pdf}},
  year = {2014},
  note = {Presented at 12th Joint Operations Research Days, EPFL, Lausanne, Switzerland}}}

Awards

2016

Riccardo Scarinci, Iliya Markov, Michel Bierlaire. Green Transportation Award, for the extended abstract and presentation "Network design of a transport system based on accelerating moving walkways". Triennial Symposium on Transportation Analysis TRISTAN IX, 12-17/06/2016 Oranjestad, Aruba..

Reviewing

EPFL courses

Spring 2017

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Virginie Lurkin, Mor Kaspi
- Teaching assistants: Tom�s Robenek, Stefan Binder, Iliya Markov, Meritxell Pacheco
- Webpage: http://moodle.epfl.ch/enrol/index.php?id=15132

Spring 2016

Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Riccardo Scarinci, Yousef Maknoon
- Teaching assistants: Iliya Markov, Marija Nikolic
- Webpage: http://transp-or.epfl.ch/courses/OptSim2016/

Spring 2015

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Matthieu de Lapparent, Shadi Sharif Azadeh
- Teaching assistants: Evanthia Kazagli, Anna Fernandez Antolin, Iliya Markov, Yousef Maknoon
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2015/index.php

Spring 2014

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Amanda Stathopoulos, Jianghang Chen
- Teaching assistants: Iliya Markov, Anna Fernandez Antolin
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2014

Fall 2013

Probabilit�s et Statistique.
- Level: Bachelor
- Section: Mathematics
- Lecturer: None None
- Teaching assistant: Iliya Markov

Master theses

2016

Analysis, tuning, hybridization and design of experiments for an adaptive large neighborhood search (ALNS) heuristic for a complex inventory routing problem, Raphaël Lüthi (None)
- Supervision: Iliya Markov, Yousef Maknoon, Michel Bierlaire
- External expert:

2014-2015

Optimisation of the network design of a futuristic transport system based on accelerated moving walkways, Bastien Rojanawisut (Mathematics)
- Supervision: Riccardo Scarinci, Iliya Markov, Michel Bierlaire
- External expert: Sacha Varone

Semester projects

2017

Models for pedestrian movements based on integrated and sequential clustering, Konde Romain Olivier Bondo

Supervision: Marija Nikolic, Iliya Markov, Michel Bierlaire
The focus of this study is the modeling of speed-density relationship for pedestrian movements using the potential of available data. The data set considered in this project contains pedestrian trajectories collected in the train station in Lausanne. To track pedestrians, a large-scale network of tracking sensors is installed in the station (Alahi et al., 2014). The analysis we have performed reveals a high scatter in the data. To characterize the observed scatter we have developed a multi-class model of the speed-density relationship based on the latent class modeling approach (Nikolic et al., 2017). The latent class approach allows for modeling the segmentation in the population and the movement behavior simultaneously. The aim of this project is the derivation of the model representing speed-density relationship based on a two-stage (sequential) approach. The first stage involves segmentation of pedestrian trajectory data, by using machine learning techniques (clustering). In the second stage, a separate speed-density model is to be estimated for each cluster discovered in the first stage. The performance of the approach will be tested using real data, and compared to the more integrated, latent class approach.

2016

Generalization and policy analysis for a rich inventory routing problem, Prisca Aeby (Computer science)

Supervision: Iliya Markov, Yousef Maknoon, Michel Bierlaire
We solve a rich logistical problem inspired from practice, in which a set of trucks is used for collecting recyclable waste from large containers over a finite planning horizon. Each container is equipped with a sensor, which communicates its level at the start of the day. Given a history of observations, a forecasting model is used to estimate the point demand forecasts as well as a forecasting error representing the level of uncertainty. The problem falls under the framework of the stochastic inventory routing problem. We introduce dynamic probabilistic information in the solution process, which impacts the cost through the probability of container overflows on future days and the probability of route failures. To solve the problem, we implement an adaptive large neighborhood search algorithm, which integrates a specialized forecasting model, tested and validated on real data. The student will analyze the performance of the algorithm and its results for various scenarios and collection and routing policies. In particular, we would like to see the impact on the best solution of the full probabilistic model with various cost parameters against simpler policies, such as one using buffer truck and container capacities to handle stochastic demand. We would like to apply the model on a rolling horizon basis and analyze the expected value of perfect information, the properties of the stochastic solution, etc. Other practical features such as open tours, multi-product problems, etc. may also be explored. We can also work on improving the algorithmic performance per se through new operators and more intelligent search strategies in the current implementation. This project is appropriate for a student with excellent coding skills in Java and knowledge of a good software for plotting and data analysis such as Matlab or R. The focus of the project will be suited to the student's interests, coding abilities, and the number of credits he or she needs.

2015

Routing of a mixed fleet of electric and diesel trucks: Analysis of solution approaches, Noortje Verstegen (Computer science)

Supervision: Iliya Markov, Stefan Binder, Michel Bierlaire
A transportation company wants to study the potential benefit of replacing some of the diesel trucks in its fleet with electric ones. Electric and diesel trucks have comparable characteristics in terms of capacity and electric trucks are capable of performing an average daily itinerary on a single charge. The price of an electric truck is higher, while its operating cost is much lower compared to a diesel truck. Therefore, we want to find an intelligent deployment of the mixed fleet so as to minimize cost. The goal is the development of a vehicle routing model and/or heuristic, taking into account the characteristics of the various trucks, including fuel/energy consumption, speed, capacity, compatibilities, working time, service times, etc. The integration of the truck load's impact on fuel/energy consumption and the analysis of battery replacement/recharging strategies could also be considered if time permits. Solution quality can be compared against benchmarks results and data from the state of practice. As a previous semester project, a student has already worked on defining the problem, developing a heuristic algorithm and obtaining some results. The current project is intended to do a deeper analysis and implementation of solution methodologies. This project is appropriate for a student with an interest in operations research and experience in programming (Java preferred). The workload can be adjusted to the number of credits.

Implementation of a futuristic transport system based on accelerated moving walkways: optimization on a real case study, Raphaël Luthi (Environmental Sciences and Engineering)

Supervision: Riccardo Scarinci, Iliya Markov, Michel Bierlaire
In a hypothetical future where the use of private cars will be limited in cities, the need for movement will be satisfied by a mix of transport modes such as public transport, cycling, walking and other innovative systems. One of these possible futuristic systems, focus of this project, is an urban network of Accelerated Moving Walkways (AMWs), i.e. a moving conveyor system for pedestrian similar to the one used in airports. This project aims to apply an optimization framework to identify the optimal network design of this innovative transport system of AMWs on a real case study. Given the origin-destination demand, pedestrians are assigned to a road network in order to have route choice and trip distributions. On this scenario, the optimal configuration of link equipped with AMWs and their capacity is define. For this purpose, a specifically developed optimization framework is used, and it should be applied to a real city. Lausanne presents appropriate transportation and geographical characteristic to be used as a case study. Empirical mobility data and the city network should be used as input of the optimization framework. Methodologies from mathematical optimization, traffic assignment, programming (MATLAB) and Geographic Information Systems (GIS) will be used for completing this project.

2014

Routing of a mixed fleet of electric and internal combustion trucks, Thomas Cibils (Management of Technology and Financial Engineering)

Supervision: Iliya Markov, Stefan Binder, Michel Bierlaire
A transportation company has introduced a number of electric trucks into their current fleet of internal combustion trucks. Electric and internal combustion trucks have similar characteristics in terms of capacity and electric trucks are capable of performing an average daily itinerary on a single charge. The goal is the development of a vehicle routing model and heuristic, taking into account the characteristics of the various trucks, including fuel/energy consumption, speed, capacity, compatibilities, working time, service times, etc. Various objectives could be considered and analyzed, such as the minimization of time, energy consumption and cost. The integration of the truck load's impact on fuel/energy consumption and the analysis of battery replacement/recharging strategies could also be considered if time permits. Data is available for benchmarking with the state of practice and assessing the heuristic's performance against the mathematical model. This project is appropriate for a student with an interest in operations research (mixed integer linear programming), some experience with mathematical programming languages (e.g. AMPL or CPLEX OPL) and good programming skills (e.g. C++, Java or Matlab).

Stefan Binder

Stefan Binder has been a member of the laboratory from Apr 01, 2013 to Feb 28, 2018

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Stefan Binder.

Journal articles

2021


@Article{BindMaknSharBier,
  author = {Stefan Binder and Yousef Maknoon and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {Passenger-Centric Timetable Rescheduling: A User Equilibrium Approach},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2021},
  volume = {132},
  pages = {103368},
  DOI = {10.1016/j.trc.2021.103368},
  note = {Accepted on Aug 26, 2021}}}

2017

Binder S., Maknoon Y., Bierlaire M. (2017). Exogenous priority rules for the capacitated passenger assignment problem. Transportation Research Part B: Methodological 105 :19-42


@Article{BindMaknBier17a,
  author = {Stefan Binder and Yousef Maknoon and Michel Bierlaire},
  title = {Exogenous priority rules for the capacitated passenger assignment problem},
  journal = {Transportation Research Part B: Methodological},
  year = {2017},
  volume = {105},
  pages = {19-42},
  DOI = {10.1016/j.trb.2017.08.022},
  note = {Accepted on Aug 17, 2017}}}

Binder S., Maknoon Y., Bierlaire M. (2017). The multi-objective railway timetable rescheduling problem. Transportation Research Part C: Emerging Technologies 78 :78-94


@Article{BindMaknBier17,
  author = {Stefan Binder and Yousef Maknoon and Michel Bierlaire},
  title = {The multi-objective railway timetable rescheduling problem},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2017},
  volume = {78},
  pages = {78-94},
  DOI = {10.1016/j.trc.2017.02.001},
  note = {Accepted on Feb 01, 2017}}}

2014

Binder S., Macfarlane G., Garrow L., Bierlaire M. (2014). Associations among Household Characteristics, Vehicle Characteristics and Emissions Failures: An Application of Targeted Marketing Data. Transportation Research Part A: Policy and Practice 59 :122-133


@Article{BindMacfGarrBier13,
  author = {Stefan Binder and Gregory Macfarlane and Laurie Garrow and Michel Bierlaire},
  title = {Associations among Household Characteristics, Vehicle Characteristics and Emissions Failures: An Application of Targeted Marketing Data},
  journal = {Transportation Research Part A: Policy and Practice},
  year = {2014},
  volume = {59},
  pages = {122-133},
  DOI = {10.1016/j.tra.2013.11.005},
  note = {Accepted on Nov 04, 2013}}}

Book chapters

2017

Audikana A., Binder S. (2017) Faut-il penser les transports pour qu'ils soient les plus rapides possibles ?. In Bierlaire, Kaufmann, Rérat (ed) La mobilité en questions, Presses Polytechniques et Universitaires Romandes (PPUR) [ISBN 978-2-88915-172-1]


@InProceedings{AudiBind2017,
  author = {Ander Audikana and Stefan Binder},
  title = {Faut-il penser les transports pour qu'ils soient les plus rapides possibles ?},
  year = {2017},
  booktile = {La mobilit\'e en questions},
  editor = {Bierlaire and  Kaufmann and  R\'erat},
  publisher = {Presses Polytechniques et Universitaires Romandes (PPUR)},
  pages = {23-36}}}

Binder S., Ravalet E. (2017) Quel est le prix d'une minute gagnée dans nos déplacements?. In Bierlaire, Kaufmann, Rérat (ed) La mobilité en questions, Presses Polytechniques et Universitaires Romandes (PPUR) , Lausanne, Suisse [ISBN 978-2-88915-172-1]


@InProceedings{BinDana_2017,
  author = {Stefan Binder and Emmanuel Ravalet},
  title = {Quel est le prix d'une minute gagn\'ee dans nos d\'eplacements?},
  year = {2017},
  booktile = {La mobilit\'e en questions},
  editor = {Bierlaire and  Kaufmann and  R\'erat},
  publisher = {Presses Polytechniques et Universitaires Romandes (PPUR)},
  address = {Lausanne, Suisse},
  pages = {37-52}}}

Technical reports

2017

Binder S., Maknoon Y., Bierlaire M. (2017). Introducing exogenous priority rules for the capacitated passenger assignment problem. Report TRANSP-OR 170209


@TechReport{BinMakBier2017,
  author = {Stefan Binder and Yousef Maknoon and Michel Bierlaire},
  title = {Introducing exogenous priority rules for the capacitated passenger assignment problem},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2017},
  type = {Technical Report},
  number = {TRANSP-OR 170209},
  address = {Lausanne, Switzerland}}}

2016

Binder S., Maknoon Y., Bierlaire M. (2016). The multi-objective railway timetable rescheduling problem. Report TRANSP-OR 160530


@TechReport{BinMakBier2016,
  author = {Stefan Binder and Yousef Maknoon and Michel Bierlaire},
  title = {The multi-objective railway timetable rescheduling problem},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2016},
  type = {Technical Report},
  number = {TRANSP-OR 160530},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2017


@InProceedings{Binder_STRC2017_Proceedings,
  author = {Stefan Binder and Yousef Maknoon and Michel Bierlaire},
  title = {Efficient investigation of multiple dimensions of the railway timetable rescheduling problem},
  booktime = {Proceedings of the 17th Swiss Transportation Research Conference, May 17-19th},
  year = {2017},
  address = {Ascona, Switzerland}}}

2015


@InProceedings{Binder_STRC2015_Proceedings,
  author = {Stefan Binder and Yousef Maknoon and Michel Bierlaire},
  title = {Passenger-oriented railway disposition timetables in case of severe disruptions},
  booktime = {Proceedings of the 15th Swiss Transportation Research Conference, April 15-17th},
  year = {2015},
  address = {Ascona, Switzerland}}}


@InProceedings{Binder_RailTokyo,
  author = {Stefan Binder and Yousef Maknoon and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {Generation and evaluation of passenger-oriented railway disposition timetables in case of severe disruptions},
  booktime = {Proceedings of the 6th International Conference on Railway Operations Modelling and Analysis (RailTokyo2015), March 23 {\textendash} 26},
  year = {2015},
  address = {Tokyo, Japan}}}

2014

Bonnet F., Binder S., Elias de Oliveira M., Halloy J., Mondada F. (2014) A Miniature Mobile Robot Developed to be Socially Integrated with Species of Small Fish. Proceedings of the IEEE International Conference on Robotics and BiomimeticsDecember 5-10, Bali, Indonesia


@InProceedings{BonnetBinder2014,
  author = {Frank Bonnet and Stefan Binder and Marcelo {Elias de Oliveira} and Jos\'e Halloy and Frncesco Mondada},
  title = {A Miniature Mobile Robot Developed to be Socially Integrated with Species of Small Fish},
  booktime = {Proceedings of the IEEE International Conference on Robotics and Biomimetics, December 5-10},
  year = {2014},
  address = {Bali, Indonesia}}}


@InProceedings{Binder_STRC2014,
  author = {Stefan Binder and {Jiang Hang} Chen and Michel Bierlaire},
  title = {Generation and evaluation of passenger-oriented railway disposition timetables},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), 14 - 16 May},
  year = {2014},
  address = {Ascona, Switzerland}}}

Talks

2017

Binder S., Bierlaire M. An efficient algorithm for the multi-objective railway timetable rescheduling problem September 12, 2017. 6th symposium of the European Association for Research in Transportation (hEART), Haifa, Israel.


@Misc{Binder_hEART2017,
  author = {Stefan Binder and Michel Bierlaire},
  title = {

An efficient algorithm for the multi-objective railway timetable rescheduling problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Binder_hEART2017.pdf}},
  year = {2017},
  note = {Presented at 6th symposium of the European Association for Research in Transportation (hEART), Haifa, Israel}}}

Binder S., Maknoon Y., Bierlaire M. Efficient investigation of multiple dimensions of the railway timetable rescheduling problem May 17, 2017. 17th Swiss Transportation Research Conference, Ascona, Switzerland.


@Misc{Binder_STRC2017,
  author = {Stefan Binder and Yousef Maknoon and Michel Bierlaire},
  title = {Efficient investigation of multiple dimensions of the railway timetable rescheduling problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Binder_STRC2017.pdf}},
  year = {2017},
  note = {Presented at 17th Swiss Transportation Research Conference, Ascona, Switzerland}}}

2016

Binder S., Maknoon Y., Bierlaire M. A passenger assignment model for the railway timetable rescheduling problem September 16, 2016. 5th symposium of the European Association for Research in Transportation (hEART), Delft, The Netherlands.


@Misc{Binder_hEART2016,
  author = {Stefan Binder and Yousef Maknoon and Michel Bierlaire},
  title = {A passenger assignment model for the railway timetable rescheduling problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Binder_hEART2016.pdf}},
  year = {2016},
  note = {Presented at 5th symposium of the European Association for Research in Transportation (hEART), Delft, The Netherlands}}}

Binder S., Maknoon Y., Bierlaire M. On the trade-off between passenger convenience and operational costs in railway disruption management June 17, 2016. Ninth Triennial Symposium on Transportation Analysis (TRISTAN IX), Oranjestad, Aruba.


@Misc{Binder_Tristan2016,
  author = {Stefan Binder and Yousef Maknoon and Michel Bierlaire},
  title = {On the trade-off between passenger convenience and operational costs in railway disruption management},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Binder_Tristan2016.pdf}},
  year = {2016},
  note = {Presented at Ninth Triennial Symposium on Transportation Analysis (TRISTAN IX), Oranjestad, Aruba}}}

Binder S., Maknoon Y., Bierlaire M. Exploring Pareto solutions of the multi-objective railway disruption management problem May 19, 2016. 16th Swiss Transportation Research Conference, Ascona, Switzerland.


@Misc{Binder_STRC_2016,
  author = {Stefan Binder and Yousef Maknoon and Michel Bierlaire},
  title = {Exploring Pareto solutions of the multi-objective railway disruption management problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Binder_STRC_2016.pdf}},
  year = {2016},
  note = {Presented at 16th Swiss Transportation Research Conference, Ascona, Switzerland}}}

2015

Binder S., Maknoon Y., Bierlaire M. On the trade-off between passenger convenience and operational costs in railway disruption management September 10, 2015. 4th symposium of the European Association for Research in Transportation (hEART), Technical University of Denmark, Copenhagen, Denmark.


@Misc{Binder_heart2015,
  author = {Stefan Binder and Yousef Maknoon and Michel Bierlaire},
  title = {On the trade-off between passenger convenience and operational costs in railway disruption management},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Binder_heart2015.pdf}},
  year = {2015},
  note = {Presented at 4th symposium of the European Association for Research in Transportation (hEART), Technical University of Denmark, Copenhagen, Denmark}}}

Binder S., Maknoon Y., Bierlaire M. An exact formulation of the passenger-oriented train timetable rescheduling problem in case of severe disruptions July 15, 2015. 27th European Conference on Operational Research, University of Strathclyde, Glasgow, Scotland.


@Misc{Binder_EURO2015,
  author = {Stefan Binder and Yousef Maknoon and Michel Bierlaire},
  title = {An exact formulation of the passenger-oriented train timetable rescheduling problem in case of severe disruptions},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Binder_EURO2015.pdf}},
  year = {2015},
  note = {Presented at 27th European Conference on Operational Research, University of Strathclyde, Glasgow, Scotland}}}

Binder S., Maknoon Y., Bierlaire M. Passenger-oriented railway disposition timetables in case of severe disruptions April 17, 2015. 15th Swiss Transportation Research Conference, Ascona, Switzerland.


@Misc{Binder_STRC2015,
  author = {Stefan Binder and Yousef Maknoon and Michel Bierlaire},
  title = {Passenger-oriented railway disposition timetables in case of severe disruptions},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Binder_STRC2015.pdf}},
  year = {2015},
  note = {Presented at 15th Swiss Transportation Research Conference, Ascona, Switzerland}}}

Binder S., Maknoon Y., Sharif Azadeh S., Bierlaire M. Generation and evaluation of passenger-oriented railway disposition timetables in case of severe disruptions March 26, 2015. 6th International Conference on Railway Operations Modelling and Analysis, Tokyo, Japan.


@Misc{Binder_RailTokyo_Sem,
  author = {Stefan Binder and Yousef Maknoon and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {Generation and evaluation of passenger-oriented railway disposition timetables in case of severe disruptions},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Binder_RailTokyo_Sem.pdf}},
  year = {2015},
  note = {Presented at 6th International Conference on Railway Operations Modelling and Analysis, Tokyo, Japan}}}

Binder S., Maknoon Y., Bierlaire M. Generation and evaluation of passenger-oriented railway disposition timetables in case of severe disruptions January 14, 2015. Programme Doctoral en Recherche Opérationnelle, Zinal, Switzerland.


@Misc{Binder_Zinal1_2015,
  author = {Stefan Binder and Yousef Maknoon and Michel Bierlaire},
  title = {Generation and evaluation of passenger-oriented railway disposition timetables in case of severe disruptions},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Binder_Zinal1_2015.pdf}},
  year = {2015},
  note = {Presented at Programme Doctoral en Recherche Op\érationnelle, Zinal, Switzerland}}}

2014

Binder S., Chen J., Bierlaire M. Generation and evaluation of passenger-oriented railway disposition timetables May 15, 2014. Swiss Transport Research Conference, Ascona, Switzerland.


@Misc{BinSTRC14,
  author = {Stefan Binder and {Jiang Hang} Chen and Michel Bierlaire},
  title = { Generation and evaluation of passenger-oriented railway disposition timetables},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/BinSTRC14.pdf}},
  year = {2014},
  note = {Presented at Swiss Transport Research Conference, Ascona, Switzerland}}}

Binder S., Chen J., Bierlaire M. Generation and evaluation of passenger-oriented railway disposition timetables May 08, 2014. 12th Swiss OR Days, EPFL, Lausanne, Switzerland.


@Misc{Binder_ORDAYS2014,
  author = {Stefan Binder and {Jiang Hang} Chen and Michel Bierlaire},
  title = {Generation and evaluation of passenger-oriented railway disposition timetables},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Binder_ORDAYS2014.pdf}},
  year = {2014},
  note = {Presented at 12th Swiss OR Days, EPFL, Lausanne, Switzerland}}}

Reviewing

EPFL courses

Spring 2017

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Virginie Lurkin, Mor Kaspi
- Teaching assistants: Tom�s Robenek, Stefan Binder, Iliya Markov, Meritxell Pacheco
- Webpage: http://moodle.epfl.ch/enrol/index.php?id=15132
Enjeux mondiaux : Mobilit� A.
- Level: Bachelor
- Section: All sections
- Lecturer: Michel Bierlaire
- Teaching assistants: Nicholas Molyneaux, Stefan Binder
- Webpage: http://moodle.epfl.ch/course/view.php?id=13982
Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Riccardo Scarinci
- Teaching assistants: Marija Nikolic, Stefan Binder
- Webpage: http://transp-or.epfl.ch/courses/OptSim2017/

Spring 2016

Enjeux mondiaux : Mobilit� A.
- Level: Bachelor
- Section: All sections
- Lecturer: Michel Bierlaire
- Teaching assistants: Stefan Binder, Shadi Sharif Azadeh
- Webpage: http://moodle.epfl.ch/course/view.php?id=13982

Spring 2015

Enjeux Mondiaux.
- Level: Bachelor
- Section: All sections
- Lecturer: Michel Bierlaire
- Teaching assistants: Stefan Binder, Flurin H�nseler
- Webpage: http://moodle.epfl.ch/course/view.php?id=13982

Fall 2014

Mod�lisation des syst�mes de transports.
- Level: Master
- Section: Civil Engineering
- Lecturer: Anne Curchod
- Teaching assistant: Stefan Binder
- Webpage: http://moodle.epfl.ch/course/view.php?id=14218

Spring 2014

Enjeux mondiaux.
- Level: Bachelor
- Section: All sections
- Lecturer: Michel Bierlaire
- Teaching assistants: Stefan Binder, Antonin Danalet
- Webpage: http://moodle.epfl.ch/course/view.php?id=13982

Master theses

2017

Demand based rolling stock allocation, Salma Deruiche (Civil Engineering)
- Supervision: Virginie Lurkin, Stefan Binder, Michel Bierlaire
- External expert: Simon Landureau

2014

Optimisation des tournées de ramassage des employés de l'aéroport de Genève, Isabel Tovar (Civil Engineering)
- Supervision: Tomás Robenek, Stefan Binder, Michel Bierlaire
- External expert: Philippe Quaglia, Aéroport international de Genève

Semester projects

2017-2018

On the optimization of CAPEX and OPEX for the design of a full electric large capacity urban bus system, Guillaume Mollard (Computational science and engineering)

Supervision: Virginie Lurkin, Stefan Binder, Michel Bierlaire
During the last few decades, environmental impact of the fossil fuel-based transportation infrastructure has led to renewed interest in electric transportation infrastructure, especially in urban public mass-transportation sector. The deployment of battery-powered electric bus systems within the public transportation sector plays an important role to increase energy efficiency and to abate emissions. RAn efficient feeding stations installation and an appropriate dimensioning of battery capacity are crucial to minimize the total cost of ownership for the citywide bus transportation net- work. The objective of this project is to extend an existing optimization model to the multiple lines case and to come up with an objective function that better reflect the real costs incurred by the operator. The objective function should include Capital Expenditures (CAPEX) and Operational Expenditures (OPEX). For the multiple line case, the central issue is to deal with the feeding stations that are shared among different lines.

2016

Price of anarchy in public transit networks, Marc-Edouard Schultheiss (Civil Engineering)

Supervision: Stefan Binder, Tomás Robenek, Michel Bierlaire

2015-2016

Online estimation of pedestrian origin-destination demand in train stations using Kalman Filtering, Marc Solsona Bernet (Civil Engineering)

Supervision: Flurin Hänseler, Stefan Binder, Michel Bierlaire

2015

Routing of a mixed fleet of electric and diesel trucks: Analysis of solution approaches, Noortje Verstegen (Computer science)

Supervision: Iliya Markov, Stefan Binder, Michel Bierlaire
A transportation company wants to study the potential benefit of replacing some of the diesel trucks in its fleet with electric ones. Electric and diesel trucks have comparable characteristics in terms of capacity and electric trucks are capable of performing an average daily itinerary on a single charge. The price of an electric truck is higher, while its operating cost is much lower compared to a diesel truck. Therefore, we want to find an intelligent deployment of the mixed fleet so as to minimize cost. The goal is the development of a vehicle routing model and/or heuristic, taking into account the characteristics of the various trucks, including fuel/energy consumption, speed, capacity, compatibilities, working time, service times, etc. The integration of the truck load's impact on fuel/energy consumption and the analysis of battery replacement/recharging strategies could also be considered if time permits. Solution quality can be compared against benchmarks results and data from the state of practice. As a previous semester project, a student has already worked on defining the problem, developing a heuristic algorithm and obtaining some results. The current project is intended to do a deeper analysis and implementation of solution methodologies. This project is appropriate for a student with an interest in operations research and experience in programming (Java preferred). The workload can be adjusted to the number of credits.

2014

3D routing approach for air navigation planning for small sized planes, Jamal El Rhazi (Civil Engineering)

Supervision: Shadi Sharif Azadeh, Michel Bierlaire, Stefan Binder
This projects aims to study and visualize the aviation data using factors such as, geographical information of the plane as well as weather condition for a flight most specifically during cruise phase. MATLAB is a powerful software with high quality of visualization of data, however, when the size of data gets bigger, the performance of MATLAB degrades and it becomes slower. Recently, some new software such as, Tableau has been introduced that provide powerful tools to visualize the big data.

Routing of a mixed fleet of electric and internal combustion trucks, Thomas Cibils (Management of Technology and Financial Engineering)

Supervision: Iliya Markov, Stefan Binder, Michel Bierlaire
A transportation company has introduced a number of electric trucks into their current fleet of internal combustion trucks. Electric and internal combustion trucks have similar characteristics in terms of capacity and electric trucks are capable of performing an average daily itinerary on a single charge. The goal is the development of a vehicle routing model and heuristic, taking into account the characteristics of the various trucks, including fuel/energy consumption, speed, capacity, compatibilities, working time, service times, etc. Various objectives could be considered and analyzed, such as the minimization of time, energy consumption and cost. The integration of the truck load's impact on fuel/energy consumption and the analysis of battery replacement/recharging strategies could also be considered if time permits. Data is available for benchmarking with the state of practice and assessing the heuristic's performance against the mathematical model. This project is appropriate for a student with an interest in operations research (mixed integer linear programming), some experience with mathematical programming languages (e.g. AMPL or CPLEX OPL) and good programming skills (e.g. C++, Java or Matlab).

Train Management in SNCF Application, Cao Huu-Ân (Computational science and engineering)

Supervision: Tomás Robenek, Stefan Binder, Michel Bierlaire

2013-2014

Optimisation des tournées de ramassage des employés de l'aéroport de Genève (Pre-Project), Isabel Tovar (Civil Engineering)

Supervision: Tomás Robenek, Stefan Binder, Michel Bierlaire

Anna Fernandez Antolin

Anna Fernandez Antolin has been a member of the laboratory from Feb 15, 2013 to Feb 28, 2018

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Anna Fernandez Antolin.

Journal articles

2018

Fernandez-Antolin A., de Lapparent M., Bierlaire M. (2018). Modeling purchases of new cars: an analysis of the 2014 French market. Theory and Decision 84 (2):277-303


@Article{FerAntDeLapBier17,
  author = {Anna Fernandez-Antolin and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Modeling purchases of new cars: an analysis of the 2014 French market},
  journal = {Theory and Decision},
  year = {2018},
  volume = {84},
  number = {2},
  pages = {277-303},
  DOI = {10.1007/s11238-017-9631-y},
  note = {Accepted on Sep 23, 2017}}}

2016


@Article{FernGuevDeLaBier16,
  author = {Anna Fernandez-Antolin and Angelo Guevara-Cue and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Correcting for endogeneity due to omitted attitudes: Empirical assessment of a modified MIS method using RP mode choice data},
  journal = {Journal of Choice Modelling},
  year = {2016},
  volume = {20},
  pages = {1-15},
  DOI = {10.1016/j.jocm.2016.09.001},
  note = {Accepted on Sep 01, 2016}}}

Technical reports

2016

Fernandez-Antolin A., de Lapparent M., Bierlaire M. (2016). Modeling purchases of new cars: an analysis of the 2014 French market. Report TRANSP-OR 161130


@TechReport{FerLapBie16,
  author = {Anna Fernandez-Antolin and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Modeling purchases of new cars: an analysis of the 2014 French market},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2016},
  type = {Technical Report},
  number = {TRANSP-OR 161130},
  address = {Lausanne, Switzerland}}}

Fernandez-Antolin A., Guevara-Cue A., de Lapparent M., Bierlaire M. (2016). Correcting for endogeneity using the multiple indicator solution. Report TRANSP-OR 160405


@TechReport{FerGueLapBie16,
  author = {Anna Fernandez-Antolin and Angelo Guevara-Cue and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Correcting for endogeneity using the multiple indicator solution},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2016},
  type = {Technical Report},
  number = {TRANSP-OR 160405},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2017


@InProceedings{FerLurLapBie_STRC2017,
  author = {Anna Fernandez-Antolin and Virginie Lurkin and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Discrete-continuous maximum likelihood for the estimation of nested logit models},
  booktime = {Proceedings of the 16th Swiss Transport Research Conference (STRC), 17-19 May},
  year = {2017},
  address = {Ascona, Switzerland}}}

2016


@InProceedings{FerLapBie_STRC2016,
  author = {Anna Fernandez-Antolin and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Uncovering substitution patterns in new car sales using a cross nested logit model},
  booktime = {Proceedings of the 16th Swiss Transport Research Conference (STRC), 18-20 May},
  year = {2016},
  address = {Ascona, Switzerland}}}

2015


@InProceedings{Baillif_STRC_2015,
  author = {Maurin Baillif and Matthieu {de Lapparent} and Anna Fernandez-Antolin and Michel Bierlaire},
  title = {Modeling consideration for electric vehicles and plug-in electric vehicles in car renewal},
  booktime = {Proceedings of the 15th Swiss Transportation Research Conference (STRC), April 15-17},
  year = {2015},
  address = {Monte Verit\`a, Ascona, Switzerland}}}

Fernandez-Antolin A., Guevara-Cue A., Bierlaire M. (2015) Correcting for endogeneity using the EMIS method: a case study with revealed preference data. Proceedings of the 15th Swiss Transport Research Conference (STRC), 15-17 April, Ascona, Switzerland


@InProceedings{FerStaBie_STRC2015,
  author = {Anna Fernandez-Antolin and Angelo Guevara-Cue and Michel Bierlaire},
  title = {Correcting for endogeneity using the EMIS method: a case study with revealed preference data},
  booktime = {Proceedings of the 15th Swiss Transport Research Conference (STRC), 15-17 April},
  year = {2015},
  address = {Ascona, Switzerland}}}

2014


@InProceedings{FerStaBie_STRC2014,
  author = {Anna Fernandez-Antolin and Amanda Stathopoulos and Michel Bierlaire},
  title = {Exploratory Analysis of Endogeneity in Discrete Choice Models},
  booktime = {Proceedings of the 14th Swiss Transport Research Conference (STRC), 14-16 May},
  year = {2014},
  address = {Ascona, Switzerland}}}

Talks

2018

Fernandez-Antolin A., Lurkin V., Bierlaire M. Maximum likelihood estimation of discrete and continuous parameters: an MILP formulation February 02, 2018. ORBEL 32 Conference, HEC Liège, Liège, Belgium.


@Misc{Fer-Ant_Orbel2018,
  author = {Anna Fernandez-Antolin and Virginie Lurkin and Michel Bierlaire},
  title = {Maximum likelihood estimation of discrete and continuous parameters: an MILP formulation},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Fer-Ant_Orbel2018.pdf}},
  year = {2018},
  note = {Presented at ORBEL 32 Conference, HEC Li\ège, Li\ège, Belgium}}}

2017

Fernandez-Antolin A., Lurkin V., Bierlaire M. Discrete-continuous maximum likelihood estimation October 23, 2017. 2017 INFORMS Annual Meeting, Houston, USA.


@Misc{Fer-Ant_INFORMS_2017,
  author = {Anna Fernandez-Antolin and Virginie Lurkin and Michel Bierlaire},
  title = {Discrete-continuous maximum likelihood estimation},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Fer-Ant_INFORMS_2017.pdf}},
  year = {2017},
  note = {Presented at 2017 INFORMS Annual Meeting, Houston, USA}}}

Fernandez-Antolin A., Lurkin V., Bierlaire M. Discrete-continuous maximum likelihood September 14, 2017. 6th Symposium of the European Association for Research in Transportation, Faculty of Civil and Environmental Engineering, Technion, Haifa, Israel.


@Misc{Fer-Ant_hEART2017,
  author = {Anna Fernandez-Antolin and Virginie Lurkin and Michel Bierlaire},
  title = {Discrete-continuous maximum likelihood},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Fer-Ant_hEART2017.pdf}},
  year = {2017},
  note = {Presented at 6th Symposium of the European Association for Research in Transportation, Faculty of Civil and Environmental Engineering, Technion, Haifa, Israel}}}

Fernandez-Antolin A., Lurkin V., Pacheco M., Bierlaire M. Discrete-continuous maximum likelihood June 23, 2017. Workshop on Discrete Choice Models 2017, EPFL, Lausanne, Switzerland.


@Misc{Fer-Ant_DCAws_2017,
  author = {Anna Fernandez-Antolin and Virginie Lurkin and Meritxell Pacheco and Michel Bierlaire},
  title = {Discrete-continuous maximum likelihood},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Fer-Ant_DCAws_2017.pdf}},
  year = {2017},
  note = {Presented at Workshop on Discrete Choice Models 2017, EPFL, Lausanne, Switzerland}}}

Fernandez-Antolin A., Lurkin V., de Lapparent M., Bierlaire M. Discrete-continuous maximum likelihood for the estimation of nested logit models May 18, 2017. 16th Swiss Transport Research Conference (STRC), Monte Verità, Ascona, Switzerland.


@Misc{Fer-Ant_STRC2017,
  author = {Anna Fernandez-Antolin and Virginie Lurkin and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Discrete-continuous maximum likelihood for the estimation of nested logit models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Fer-Ant_STRC2017.pdf}},
  year = {2017},
  note = {Presented at 16th Swiss Transport Research Conference (STRC), Monte Verit\à, Ascona, Switzerland}}}

2016

Fernandez-Antolin A., de Lapparent M., Bierlaire M. Modeling demand for new cars in France September 14, 2016. hEART 2016, 5th Symposium of the European Association for Research in Transportation, Delft University of Technology, Delft, Netherlands.


@Misc{Fer-Ant_hEART2016,
  author = {Anna Fernandez-Antolin and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Modeling demand for new cars in France},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Fer-Ant_hEART2016.pdf}},
  year = {2016},
  note = {Presented at hEART 2016, 5th Symposium of the European Association for Research in Transportation, Delft University of Technology, Delft, Netherlands}}}

Fernandez-Antolin A. How do we make a choice? September 06, 2016. My Thesis in 180 Seconds, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.


@Misc{Fer-Ant_MT180,
  author = {Anna Fernandez-Antolin},
  title = {How do we make a choice?},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Fer-Ant_MT180.pdf}},
  year = {2016},
  note = {Presented at My Thesis in 180 Seconds, Ecole Polytechnique F\éd\érale de Lausanne, Lausanne, Switzerland}}}

Fernandez-Antolin A., de Lapparent M., Bierlaire M. Flexible substitution patterns in new car sales June 13, 2016. TRISTAN IX, Oranjestad, Aruba.


@Misc{TRISTAN-2016_FerAnt,
  author = {Anna Fernandez-Antolin and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Flexible substitution patterns in new car sales},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/TRISTAN-2016_FerAnt.pdf}},
  year = {2016},
  note = {Presented at TRISTAN IX, Oranjestad, Aruba}}}

Fernandez-Antolin A., de Lapparent M., Bierlaire M. Uncovering substitution patterns in new car sales using a cross nested logit model May 19, 2016. 16th Swiss Transport Research Conference (STRC), Monte Verità, Ascona, Switzerland.


@Misc{Fer-Ant_STRC_2016,
  author = {Anna Fernandez-Antolin and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Uncovering substitution patterns in new car sales using a cross nested logit model},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Fer-Ant_STRC_2016.pdf}},
  year = {2016},
  note = {Presented at 16th Swiss Transport Research Conference (STRC), Monte Verit\à, Ascona, Switzerland}}}

Fernandez-Antolin A., de Lapparent M., Bierlaire M. How do I choose a new car? A discrete-choice approach. May 12, 2016. Invited lecture, Ecole des Ponts - ParisTech, Paris, France.


@Misc{Fer-Ant_EdP,
  author = {Anna Fernandez-Antolin and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {How do I choose a new car? A discrete-choice approach.},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Fer-Ant_EdP.pdf}},
  year = {2016},
  note = {Presented at Invited lecture, Ecole des Ponts - ParisTech, Paris, France}}}

Fernandez-Antolin A., de Lapparent M., Bierlaire M. I would like a new car, which one do I choose? April 22, 2016. Workshop on Discrete Choice Models 2016, Lausanne, Switzerland.


@Misc{Fer-Ant_DCAws_2016,
  author = {Anna Fernandez-Antolin and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {I would like a new car, which one do I choose?},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Fer-Ant_DCAws_2016.pdf}},
  year = {2016},
  note = {Presented at Workshop on Discrete Choice Models 2016, Lausanne, Switzerland}}}

2015

Fernandez-Antolin A., Guevara-Cue A., Bierlaire M. Capturing non-linearities between observed and unobserved variables: how to model the "car loving" attitude while correcting for endogeneity September 09, 2015. 4th Symposium of the European Association for Research in Transportation, Technical University of Denmark, Copenhagen, Denmark.


@Misc{Fer-Ant_hEART2015,
  author = {Anna Fernandez-Antolin and Angelo Guevara-Cue and Michel Bierlaire},
  title = {Capturing non-linearities between observed and unobserved variables: how to model the ''car loving'' attitude while correcting for endogeneity},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Fer-Ant_hEART2015.pdf}},
  year = {2015},
  note = {Presented at 4th Symposium of the European Association for Research in Transportation, Technical University of Denmark, Copenhagen, Denmark}}}

Fernandez-Antolin A., Guevara-Cue A., Bierlaire M. Modeling the unobserved: an application of the MIS method to RP Swiss data July 19, 2015. 14th International Conference on Travel Behaviour Research, Beaumont Estate, Windsor.


@Misc{Fer-Ant_IATBR2015,
  author = {Anna Fernandez-Antolin and Angelo Guevara-Cue and Michel Bierlaire},
  title = {Modeling the unobserved: an application of the MIS method to RP Swiss data},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Fer-Ant_IATBR2015.pdf}},
  year = {2015},
  note = {Presented at 14th International Conference on Travel Behaviour Research, Beaumont Estate, Windsor}}}

Fernandez-Antolin A., Guevara-Cue A., Bierlaire M. Correcting for endogeneity using the MIS method: a case study using mode choice RP data in Switzerland May 28, 2015. Workshop on Discrete Choice Models 2015, Lausanne, Switzerland.


@Misc{Fer-Ant_DCAws_2015,
  author = {Anna Fernandez-Antolin and Angelo Guevara-Cue and Michel Bierlaire},
  title = {Correcting for endogeneity using the MIS method: a case study using mode choice RP data in Switzerland},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Fer-Ant_DCAws_2015.pdf}},
  year = {2015},
  note = {Presented at Workshop on Discrete Choice Models 2015, Lausanne, Switzerland}}}

Fernandez-Antolin A., Guevara-Cue A., Bierlaire M. Correcting for endogeneity using the EMIS method: a case study with revealed preference data April 16, 2015. 15th Swiss Transport Research Conference (STRC), Monte Verità, Ascona, Switzerland.


@Misc{Fer-Ant_STRC_2015,
  author = {Anna Fernandez-Antolin and Angelo Guevara-Cue and Michel Bierlaire},
  title = {Correcting for endogeneity using the EMIS method: a case study with revealed preference data},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Fer-Ant_STRC_2015.pdf}},
  year = {2015},
  note = {Presented at 15th Swiss Transport Research Conference (STRC), Monte Verit\à, Ascona, Switzerland}}}

2014

Guevara-Cue A., Fernandez-Antolin A., Glerum A., Bierlaire M. A correction for endogeneity in choice models with psychological constructs September 11, 2014. 3rd Symposium of the European Association for Research in Transportation (hEART) 2014, Institute for Transport Studies, University of Leeds, Leeds, United Kingdom.


@Misc{Fer-Ant_hEART_2014,
  author = {Angelo Guevara-Cue and Anna Fernandez-Antolin and Aur\'elie Glerum and Michel Bierlaire},
  title = {A correction for endogeneity in choice models with psychological constructs},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Fer-Ant_hEART_2014.pdf}},
  year = {2014},
  note = {Presented at 3rd Symposium of the European Association for Research in Transportation (hEART) 2014, Institute for Transport Studies, University of Leeds, Leeds, United Kingdom}}}

Fernandez-Antolin A., Bierlaire M., Fosgerau M., McFadden D. Choice Probability Generating Functions June 20, 2014. 9th Workshop on Discrete Choice Models, Lausanne, Switzerland.


@Misc{Fer-Ant_DCAws_2014,
  author = {Anna Fernandez-Antolin and Michel Bierlaire and Mogens Fosgerau and Dan McFadden},
  title = {Choice Probability Generating Functions},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Fer-Ant_DCAws_2014.pdf}},
  year = {2014},
  note = {Presented at 9th Workshop on Discrete Choice Models, Lausanne, Switzerland}}}

Fernandez-Antolin A., Stathopoulos A., Bierlaire M. Exploratory Analysis of Endogeneity in Discrete Choice Models May 15, 2014. 14th Swiss Transportation Research Conference, Ascona, Switzerland.


@Misc{Fer-Ant_STRC_2014,
  author = {Anna Fernandez-Antolin and Amanda Stathopoulos and Michel Bierlaire},
  title = {Exploratory Analysis of Endogeneity in Discrete Choice Models	},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Fer-Ant_STRC_2014.pdf}},
  year = {2014},
  note = {Presented at 14th Swiss Transportation Research Conference, Ascona, Switzerland}}}

Reviewing

European Transport Research Review (2)
Journal of Urban Planning and Developement (1)
Transportation (1)
Transportation Research Part A: Policy and Practice (1)

Research projects

2014

Electric vehicle adoption dynamics: exploring market potentials

This project proposes innovative methods to identify the determinants of acceptance of alternative vehicles and their impact on everyday mobility. The greatest challenge faced by the promoters of the transition towards this low carbon engine technology lies in understanding how consumers accept the financial and lifestyle investments associated with the leap from traditional to electric powertrains. This project proposes innovative methods to identify the determinants of acceptance of alternative vehicles and their impact on everyday mobility. A deeper understanding of adoption dynamics is critical to predict who will opt for EVs when and under which conditions. This project will focus on innovative data-collection and modelling methodologies to uncover the acceptance of EVs at different stages of market-penetration (considering inexperienced/experienced users, early pioneers/late-adopters). A thorough analysis of the consumer decision-making process will lead to uncovering the barriers and success factors related to EV uptake and to forecast buying and usage behaviours related to new vehicle classes.
- Apr 01, 2014 - Mar 31, 2017
- Sponsor: Nissan
- Principal investigator: Michel Bierlaire
- Project manager: Matthieu de Lapparent
- Collaborator: Anna Fernandez Antolin

EPFL courses

Fall 2017

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Meritxell Pacheco, Anna Fernandez Antolin, Evanthia Kazagli, Yuki Oyama
- Webpage: http://transp-or.epfl.ch/courses/dca2017

Fall 2016

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Evanthia Kazagli, Anna Fernandez Antolin, Meritxell Pacheco
- Webpage: http://transp-or.epfl.ch/courses/dca2016

Spring 2016

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Matthieu de Lapparent, Shadi Sharif Azadeh
- Teaching assistants: Anna Fernandez Antolin, Tom�s Robenek, Yousef Maknoon, Evanthia Kazagli
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2016/index.php

Fall 2015

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturers: Michel Bierlaire, Matthieu de Lapparent
- Teaching assistants: Evanthia Kazagli, Anna Fernandez Antolin
- Webpage: http://transp-or.epfl.ch/courses/dca2015/

Spring 2015

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Matthieu de Lapparent, Shadi Sharif Azadeh
- Teaching assistants: Evanthia Kazagli, Anna Fernandez Antolin, Iliya Markov, Yousef Maknoon
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2015/index.php

Fall 2014

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturers: Michel Bierlaire, Matthieu de Lapparent
- Teaching assistants: Anna Fernandez Antolin, Evanthia Kazagli
- Webpage: http://transp-or.epfl.ch/courses/dca2014/

Spring 2014

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Amanda Stathopoulos, Jianghang Chen
- Teaching assistants: Iliya Markov, Anna Fernandez Antolin
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2014

Fall 2013

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturers: Michel Bierlaire, Amanda Stathopoulos
- Teaching assistants: Evanthia Kazagli, Anna Fernandez Antolin
- Webpage: http://transp-or.epfl.ch/courses/dca2013/

Various lectures

2018

Logit Mixture; Hybrid Choice Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 14, 2018
- Lecturer: Meritxell Pacheco
- Assistants: Anna Fernandez Antolin, Yuki Oyama, Ma�lle Zimmermann
Forecasting; Combining RP & SP.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 13, 2018
- Lecturer: Meritxell Pacheco
- Assistants: Anna Fernandez Antolin, Yuki Oyama, Ma�lle Zimmermann
Specification Testing; Nested Logit.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 12, 2018
- Lecturer: Anna Fernandez Antolin
- Assistants: Meritxell Pacheco, Yuki Oyama, Ma�lle Zimmermann
Introduction; Logit Estimation.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 11, 2018
- Lecturer: Anna Fernandez Antolin
- Assistants: Meritxell Pacheco, Yuki Oyama, Ma�lle Zimmermann

2017

Hybrid Choice Models (ctd).
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 16, 2017 - Feb 16, 2017
- Lecturer: Matthieu de Lapparent
- Assistants: Evanthia Kazagli, Meritxell Pacheco, Anna Fernandez Antolin
Logit Mixture; Hybrid Choice Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 15, 2017 - Feb 15, 2017
- Lecturer: Matthieu de Lapparent
- Assistants: Evanthia Kazagli, Meritxell Pacheco, Anna Fernandez Antolin
Forecasting; Combining RP and SP.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 14, 2017 - Feb 14, 2017
- Lecturer: Meritxell Pacheco
- Assistants: Evanthia Kazagli, Matthieu de Lapparent, Anna Fernandez Antolin
Nested logit; Specification testing.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 13, 2017 - Feb 13, 2017
- Lecturer: Evanthia Kazagli
- Assistants: Meritxell Pacheco, Matthieu de Lapparent, Anna Fernandez Antolin
Introduction; Logit estimation.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 12, 2017 - Feb 12, 2017
- Lecturer: Evanthia Kazagli
- Assistants: Meritxell Pacheco, Matthieu de Lapparent, Anna Fernandez Antolin

2016

Logit Mixture; Combining SP and RP.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 23, 2016 - Mar 23, 2016
- Lecturer: Matthieu de Lapparent
- Assistants: Evanthia Kazagli, Anna Fernandez Antolin
Forecasting; Nested Logit.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 22, 2016 - Mar 22, 2016
- Lecturer: Anna Fernandez Antolin
- Assistants: Evanthia Kazagli, Matthieu de Lapparent
Logit Models; Specification testing.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 21, 2016 - Mar 21, 2016
- Lecturer: Anna Fernandez Antolin
- Assistants: Evanthia Kazagli, Matthieu de Lapparent
Introduction; binary choice.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 20, 2016 - Mar 20, 2016
- Lecturer: Evanthia Kazagli
- Assistants: Anna Fernandez Antolin, Meritxell Pacheco

Master theses

2016

Discrete choice model for the automobile market: modeling willingness-to-pay for marginal and non marginal changes in car attributes, Anna-Katharina Clodong (Civil Engineering)
- Supervision: Matthieu de Lapparent, Anna Fernandez Antolin, Michel Bierlaire
- External expert:

2015-2016

Disaggregate modeling of vehicle-miles traveled: what about users of alternative-fuel vehicles?, Takao Dantsuji (Civil Engineering)
- Supervision: Matthieu de Lapparent, Anna Fernandez Antolin, Michel Bierlaire
- External expert:

2015

Modeling consideration and willingness-to-pay for electric and plug-in hybrid electric vehicles in car renewal, Baillif Maurin (Civil Engineering)
- Supervision: Matthieu de Lapparent, Anna Fernandez Antolin, Michel Bierlaire
- External expert: Yves Delacrétaz

2014

Mode Choice Analysis Using Smartphone Data, Michael Friederich (Civil Engineering)
- Supervision: Evanthia Kazagli, Marija Nikolic, Anna Fernandez Antolin
- External expert:

Semester projects

2017-2018

Integrating demand and supply in the context of airlines, Thibaut Richard et Gabriel Curis (Civil Engineering)

Supervision: Meritxell Pacheco, Anna Fernandez Antolin, Michel Bierlaire

2017

Alternative activity pattern generation for stated preference surveys, Nicola Marco Ortelli (Civil Engineering)

Supervision: Anna Fernandez Antolin, Gael Lederrey, Michel Bierlaire

Modeling purchases of new cars for 2015: a comparison between countries, Martí Montesinos (Civil Engineering)

Supervision: Anna Fernandez Antolin, Meritxell Pacheco, Michel Bierlaire
We are interested in analyzing the behavior of people when they face the decision to buy a new car. We have a large dataset containing information of new car purchases, where respondents answered to several questions related to their socioeconomic characteristics and to the attributes of their recently purchased car. We have developed a framework that has been applied to the data corresponding to France in 2014. The objective of this semester project is to apply it to 2015 for several countries (France, Germany, Italy and Spain) and to obtain and predict market shares in each of the countries as well as to compute willingness to pay towards different attributes. Moreover, the student will analyze the difference between the different countries and between the different years.

2016-2017

Investigating the role of attitudes in the purchase of new cars, Nicola Ortelli

Supervision: Anna Fernandez Antolin, Meritxell Pacheco, Michel Bierlaire
Attitudes and perceptions play an important role in decision-making processes. We are interested in new car purchases, and how attitudes and perceptions play a role in this context. We have a large dataset containing information of new car purchases, where respondents answered to several attitudinal questions. The objective of this semester project is to analyze these attitudinal questions, starting with principal component analysis. The study will be expanded to see how these attitudes affect purchases of new cars, and of electric vehicles in particular.

2015-2016

Hedonic pricing of car attributes: a comparison across European countries, Anna-Katharina Clodong (Civil Engineering)

Supervision: Matthieu de Lapparent, Anna Fernandez Antolin, Michel Bierlaire
Hedonic pricing is a revealed preference approach that is used for valuation of constituent characteristics of a good or a service. This project aims at pricing car attributes using disaggregate data on car purchases in 5 European countries from 2010 to 2014. Attention will be paid on estimation of market price gradients and willingness-to-pay for engine types, fuel consumption, weight to power ratio, etc., while accounting for heterogenous preferences of consumers and controlling for market segments, changes in quality, and brand effects. The candidate will take a strong interest in nonlinear regression methods, issues in econometric modeling, analysis and preparation of large datasets, and programming.

2014

Accounting for attitudes in modeling demand for electric vehicles, Maurin Baillif (Civil Engineering)

Supervision: Matthieu de Lapparent, Anna Fernandez Antolin, Michel Bierlaire
The purpose is to characterize and to model determinants of electric vehicle acceptance and adoption by individuals. Special attention will be paid to additional integration of attitudinal drivers and barriers to adherence to such technology. It aims at understanding how consumers accept the financial and lifestyle investments associated with the leap from traditional to electric powertrains, focusing on battery electric (BEV) and plug-in hybrid electric (PHEV) vehicles. To this extent, the 2012 Renault-Nissan Alliance survey on electric vehicles will be used. Data are collected over 5 European countries: France, Italy, Germany, Spain, UK. It focuses on current owners of a car bought new between 6 months and 5 years ago and who intend to buy a new car in the next 5 years. State-of-the-art and extended discrete choice models will be developed to account for formation of latent processes and existence of endogeneity issues.

Evanthia Kazagli

Evanthia Kazagli has been a member of the laboratory from Oct 10, 2012 to Dec 31, 2017

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Evanthia Kazagli.

Journal articles

2020

Kazagli E., Bierlaire M., de Lapparent M. (2020). Operational route choice methodologies for practical applications. Transportation 47 :43-74

This paper focuses on the application of tractable route choice models and presents a set of methods for deriving relevant disaggregate and aggregate route choice indicators, namely link and route flows. Tractability is achieved at the disaggregate level by the recursive logit model and at the aggregate level by the mental representation item (MRI) approach. These two approaches are analyzed here, and extensions of the MRI approach are presented. The analysis elaborates on the features of each model and allows to draw insights into the use of a specific model, depending on the needs of the application and the data availability. The performance of the two models is tested on real data. The results demonstrate the validity of the MRI model that is intended for aggregate analysis.
```
@Article{KazBierLap_2017_TRANSPORTATION,
  author = {Evanthia Kazagli and Michel Bierlaire and Matthieu {de Lapparent}},
  title = {Operational route choice methodologies for practical applications},
  journal = {Transportation},
  year = {2020},
  volume = {47},
  pages = {43-74},
  DOI = {10.1007/s11116-017-9849-0},
  note = {Accepted on Dec 21, 2017}}}
```

2016

Kazagli E., Bierlaire M., Flötteröd G. (2016). Revisiting the Route Choice Problem: A Modeling Framework Based on Mental Representations. Journal of Choice Modelling 19 :1-23


@Article{KazBierFlo_JoCM_2016,
  author = {Evanthia Kazagli and Michel Bierlaire and Gunnar Fl\"otter\"od},
  title = {Revisiting the Route Choice Problem: A Modeling Framework Based on Mental Representations},
  journal = {Journal of Choice Modelling},
  year = {2016},
  volume = {19},
  pages = {1-23},
  DOI = {10.1016/j.jocm.2016.06.001},
  note = {Accepted on Jun 07, 2016}}}

2013

Kazagli E., Koutsopoulos H. (2013). Estimation of Arterial Travel Time from Automatic Number Plate Recognition Data. Transportation Research Record 2391 :22-31


@Article{KazKoutsTRR_2013,
  author = {Evanthia Kazagli and Haris Koutsopoulos},
  title = {Estimation of Arterial Travel Time from Automatic Number Plate Recognition Data},
  journal = {Transportation Research Record},
  year = {2013},
  volume = {2391},
  pages = {22-31},
  DOI = {10.3141/2391-03},
  note = {Accepted on Feb 26, 2013}}}

Book chapters

2014

Kazagli E., Chen J., Bierlaire M. (2014) Individual Mobility Analysis Using Smartphone Data. In Soora Rasouli and Harry Timmermans (ed) Mobile Technologies for Activity-Travel Data Collection and Analysis, IGI Global [ISBN 9781466661707]


@InProceedings{KazChenBier_IGI,
  author = {Evanthia Kazagli and Jingmin Chen and Michel Bierlaire},
  title = { Individual Mobility Analysis Using Smartphone Data},
  year = {2014},
  booktile = {Mobile Technologies for Activity-Travel Data Collection and Analysis},
  editor = {Soora Rasouli and Harry Timmermans},
  publisher = {IGI Global},
  pages = {187-208}}}

Technical reports

2017

Kazagli E., Bierlaire M., de Lapparent M. (2017). Operational route choice methodologies for practical applications. Report TRANSP-OR 170526


@TechReport{KazBierDeLap2017,
  author = {Evanthia Kazagli and Michel Bierlaire and Matthieu {de Lapparent}},
  title = {Operational route choice methodologies for practical applications},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2017},
  type = {Technical Report},
  number = {TRANSP-OR 170526},
  address = {Lausanne, Switzerland}}}

2015

Kazagli E., Bierlaire M., Flötteröd G. (2015). Revisiting the Route Choice Problem: A Modeling Framework Based on Mental Representations. Report TRANSP-OR 150824


@TechReport{KazBierFloe_2015,
  author = {Evanthia Kazagli and Michel Bierlaire and Gunnar Fl\"otter\"od},
  title = {Revisiting the Route Choice Problem: A Modeling Framework Based on Mental Representations},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2015},
  type = {Technical Report},
  number = {TRANSP-OR 150824},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2017

Montesinos M., Ortelli N., Bellocchi L., Kazagli E., Geroliminis N. (2017) Modeling simplicity in drivers' route choice behavior. Proceedings of the 17th Swiss Transport Research Conference (STRC), 17-19, 2017, Ascona, Switzerland


@InProceedings{MonOrtBelKazGer_STRC2017,
  author = {Marti Montesinos and Nicola Ortelli and Leonardo Bellocchi and Evanthia Kazagli and Nikolas Geroliminis},
  title = {Modeling simplicity in drivers' route choice behavior},
  booktime = {Proceedings of the 17th Swiss Transport Research Conference (STRC), 17-19, 2017},
  year = {2017},
  address = {Ascona, Switzerland}}}

2016

Kazagli E., Bierlaire M. (2016) Assessing complex route choice models using mental representations. Proceedings of the 16th Swiss Transport Research Conference (STRC), May 19-20, 2016, Ascona, Switzerland


@InProceedings{KazBier_STRC2016,
  author = {Evanthia Kazagli and Michel Bierlaire},
  title = {Assessing complex route choice models using mental representations},
  booktime = {Proceedings of the 16th Swiss Transport Research Conference (STRC), May 19-20, 2016},
  year = {2016},
  address = {Ascona, Switzerland}}}

2015

Kazagli E., Bierlaire M. (2015) A Route Choice Model based on Mental Representations. Proceedings of the Proceedings of the 15th Swiss Transport Research Conference (STRC), April 15-17, Monte Verit�, Ascona, Switzerland


@InProceedings{KazBier_STRC15,
  author = {Evanthia Kazagli and Michel Bierlaire},
  title = {A Route Choice Model based on Mental Representations},
  booktime = {Proceedings of the Proceedings of the 15th Swiss Transport Research Conference (STRC), April 15-17},
  year = {2015},
  address = {Monte Verit\`a, Ascona, Switzerland}}}

2014

Kazagli E., Bierlaire M. (2014) Revisiting Route Choice Modeling: A Multi-Level Modeling Framework for Route Choice Behavior. Proceedings of the Swiss Transportation Research Conference (STRC), 14 - 16 May, Ascona, Switzerland


@InProceedings{KazBierSTRC14,
  author = {Evanthia Kazagli and Michel Bierlaire},
  title = {Revisiting Route Choice Modeling: A Multi-Level Modeling Framework for Route Choice Behavior},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), 14 - 16 May},
  year = {2014},
  address = {Ascona, Switzerland}}}

2013

Kazagli E., Koutsopoulos H. (2013) Arterial Travel Time Estimation from Automatic Number Plate Recognition Data. Proceedings of the 92nd Annual Transportation Research Board MeetingJanuary 13-17, Washington, D.C.,


@InProceedings{KazKoutsTRB_2013,
  author = {Evanthia Kazagli and Haris Koutsopoulos},
  title = {Arterial Travel Time Estimation from Automatic Number Plate Recognition Data},
  booktime = {Proceedings of the 92nd Annual Transportation Research Board Meeting, January 13-17},
  year = {2013},
  address = {Washington, D.C., }}}

Kazagli E., Chen J., Bierlaire M. (2013) Incorporating �Mental Maps� in Route Choice Modeling: Preliminary Ideas. Proceedings of the 13th Swiss Transport Research Conference (STRC), 24-26 April, 2013, Ascona, Switzerland


@InProceedings{KazBier_STRC2013,
  author = {Evanthia Kazagli and Jingmin Chen and Michel Bierlaire},
  title = {Incorporating {\textquotedblleft}Mental Maps{\textquotedblright} in Route Choice Modeling: Preliminary Ideas},
  booktime = {Proceedings of the 13th Swiss Transport Research Conference (STRC), 24-26 April, 2013},
  year = {2013},
  address = {Ascona, Switzerland}}}

Talks

2017

Kazagli E., Bierlaire M. Application of the MRI framework to a large network: Qu�bec city, June 22, 2017. Workshop on Discrete Choice Models 2017, EPFL, Lausanne, Switzerland.


@Misc{Kaz_DCAwork17,
  author = {Evanthia Kazagli and Michel Bierlaire},
  title = {Application of the MRI framework to a large network: Qu\'ebec city,},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Kaz_DCAwork17.pdf}},
  year = {2017},
  note = {Presented at Workshop on Discrete Choice Models 2017, EPFL, Lausanne, Switzerland}}}

Kazagli E. Modeling route choice using aggregate models May 24, 2017. Invited lecture, Ecole des Ponts - ParisTech, Paris.


@Misc{EdP_Kazagli_2017,
  author = {Evanthia Kazagli},
  title = {Modeling route choice using aggregate models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/EdP_Kazagli_2017.pdf}},
  year = {2017},
  note = {Presented at Invited lecture, Ecole des Ponts - ParisTech, Paris}}}

Kazagli E., Bierlaire M., de Lapparent M. Modeling route choice in Qu�bec city using mental representations May 18, 2017. 17th Swiss Transport Research Conference (STRC), Ascona.


@Misc{Kaz_STRC-2017,
  author = {Evanthia Kazagli and Michel Bierlaire and Matthieu {de Lapparent}},
  title = {Modeling route choice in Qu\'ebec city using mental representations },
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Kaz_STRC-2017.pdf}},
  year = {2017},
  note = {Presented at 17th Swiss Transport Research Conference (STRC), Ascona}}}

2016

Kazagli E., Bierlaire M. Assessing complex route choice models using an abstracted network based on mental representations September 16, 2016. hEART 2016, 5th Symposium of the European Association for Research in Transportation, Delft University of Technology, Delft, Netherlands.


@Misc{hEART-2016_Kazagli,
  author = {Evanthia Kazagli and Michel Bierlaire},
  title = {Assessing complex route choice models using an abstracted network based on mental representations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/hEART-2016_Kazagli.pdf}},
  year = {2016},
  note = {Presented at hEART 2016, 5th Symposium of the European Association for Research in Transportation, Delft University of Technology, Delft, Netherlands}}}

Kazagli E., Bierlaire M. Assessing complex route choice models using an abstracted network based on mental representations June 16, 2016. TRISTAN IX, Oranjestad, Aruba.


@Misc{TRISTAN-2016_Kazagli,
  author = {Evanthia Kazagli and Michel Bierlaire},
  title = {Assessing complex route choice models using an abstracted network based on mental representations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/TRISTAN-2016_Kazagli.pdf}},
  year = {2016},
  note = {Presented at TRISTAN IX, Oranjestad, Aruba}}}

Kazagli E., Bierlaire M. Assessing complex route choice models using mental representations May 18, 2016. 16th Swiss Transport Research Conference (STRC), Ascona, Switzerland.


@Misc{STRC-2016_Kazagli,
  author = {Evanthia Kazagli and Michel Bierlaire},
  title = {Assessing complex route choice models using mental representations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/STRC-2016_Kazagli.pdf}},
  year = {2016},
  note = {Presented at 16th Swiss Transport Research Conference (STRC), Ascona, Switzerland}}}

Kazagli E. Dealing with structural correlation in discrete choice models: The complex case of route choice May 12, 2016. Invited lecture, Ecole des Ponts - ParisTech, Paris.


@Misc{EdP_Kazagli,
  author = {Evanthia Kazagli},
  title = {Dealing with structural correlation in discrete choice models: The complex case of route choice},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/EdP_Kazagli.pdf}},
  year = {2016},
  note = {Presented at Invited lecture, Ecole des Ponts - ParisTech, Paris}}}

Kazagli E., Bierlaire M. Assessing complex route choice models using an abstracted network based on mental representations April 21, 2016. 11th Workshop on Discrete Choice Models, EPFL, Lausanne, Switzerland.


@Misc{KazBierDCA16,
  author = {Evanthia Kazagli and Michel Bierlaire},
  title = {Assessing complex route choice models using an abstracted network based on mental representations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/KazBierDCA16.pdf}},
  year = {2016},
  note = {Presented at 11th Workshop on Discrete Choice Models, EPFL, Lausanne, Switzerland}}}

2015

Kazagli E., Bierlaire M., Flötteröd G. Assessment of A Route Choice Model Based on Mental Representations for Practical Applications September 11, 2015. hEART 2015, 4th Symposium of the European Association for Research in Transportation, Technical University of Denmark (DTU), Copenhagen, Denmark.


@Misc{hEART-2015_Kazagli,
  author = {Evanthia Kazagli and Michel Bierlaire and Gunnar Fl\"otter\"od},
  title = {Assessment of A Route Choice Model Based on Mental Representations for Practical Applications},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/hEART-2015_Kazagli.pdf}},
  year = {2015},
  note = {Presented at hEART 2015, 4th Symposium of the European Association for Research in Transportation, Technical University of Denmark (DTU), Copenhagen, Denmark}}}

Kazagli E., Bierlaire M. A Route Choice Model Based on Mental Representations May 28, 2015. 10th Workshop on Discrete Choice Models 2015, EPFL, Lausanne, Switzerland.


@Misc{DCA-2015_Kazagli,
  author = {Evanthia Kazagli and Michel Bierlaire},
  title = {A Route Choice Model Based on Mental Representations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/DCA-2015_Kazagli.pdf}},
  year = {2015},
  note = {Presented at 10th Workshop on Discrete Choice Models 2015, EPFL, Lausanne, Switzerland}}}

Kazagli E., Bierlaire M. Revisiting the Route Choice Problem: A Modeling Framework Based on Mental Representations May 12, 2015. International Choice Modelling Conference 2015, Austin, Texas - USA.


@Misc{KazBierICMC15,
  author = {Evanthia Kazagli and Michel Bierlaire},
  title = {Revisiting the Route Choice Problem: A Modeling Framework Based on Mental Representations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/KazBierICMC15.pdf}},
  year = {2015},
  note = {Presented at International Choice Modelling Conference 2015, Austin, Texas - USA}}}

Kazagli E., Bierlaire M. A Route Choice Model based on Mental Representations April 16, 2015. 15th Swiss Transport Research Conference (STRC), Monte Verità, Ascona, Switzerland.


@Misc{KazBierSTRC15,
  author = {Evanthia Kazagli and Michel Bierlaire},
  title = { A Route Choice Model based on Mental Representations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/KazBierSTRC15.pdf}},
  year = {2015},
  note = {Presented at 15th Swiss Transport Research Conference (STRC), Monte Verit\à, Ascona, Switzerland}}}

2014

Kazagli E., Bierlaire M. Revisiting Route Choice Modeling: A Multi-Level Modeling Framework for Route Choice Behavior September 12, 2014. hEART 2014, 3rd Symposium of the European Association for Research in Transportation, Institute for Transport Studies, University of Leeds, Leeds, United Kingdom.


@Misc{KazBier_hEART-2014,
  author = {Evanthia Kazagli and Michel Bierlaire},
  title = {Revisiting Route Choice Modeling: A Multi-Level Modeling Framework for Route Choice Behavior},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/KazBier_hEART-2014.pdf}},
  year = {2014},
  note = {Presented at hEART 2014, 3rd Symposium of the European Association for Research in Transportation, Institute for Transport Studies, University of Leeds, Leeds, United Kingdom}}}

Kazagli E., Bierlaire M. Revisiting Route Choice Modeling: A Multi-Level Modeling Framework for Route Choice Behavior June 20, 2014. 9th Workshop on Discrete Choice Models, EPFL, Lausanne, Switzerland.


@Misc{KazBierDCA14,
  author = {Evanthia Kazagli and Michel Bierlaire},
  title = {Revisiting Route Choice Modeling: A Multi-Level Modeling Framework for Route Choice Behavior},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/KazBierDCA14.pdf}},
  year = {2014},
  note = {Presented at 9th Workshop on Discrete Choice Models, EPFL, Lausanne, Switzerland}}}

Kazagli E., Bierlaire M. Revisiting Route Choice Modeling: A Multi-Level Modeling Framework for Route Choice Behavior May 15, 2014. Swiss Transport Research Conference, Ascona, Switzerland.


@Misc{KazBier_STRC14,
  author = {Evanthia Kazagli and Michel Bierlaire},
  title = {Revisiting Route Choice Modeling: A Multi-Level Modeling Framework for Route Choice Behavior},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/KazBier_STRC14.pdf}},
  year = {2014},
  note = {Presented at Swiss Transport Research Conference, Ascona, Switzerland}}}

2013

Kazagli E. Incorporating Travelers� Mental Representations in Route Choice Modeling July 15, 2013. DATA SIM Summer School 2013, Mobility Modeling and Big Data Sources, Hasselt University, Hasselt, Belgium.


@Misc{Kazagli_DATASIM-2013,
  author = {Evanthia Kazagli},
  title = {Incorporating Travelers{\textquoteright} Mental Representations in Route Choice Modeling},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Kazagli_DATASIM-2013.pdf}},
  year = {2013},
  note = {Presented at DATA SIM Summer School 2013, Mobility Modeling and Big Data Sources, Hasselt University, Hasselt, Belgium}}}

Kazagli E., Chen J., Bierlaire M. Incorporating �Mental Maps� in Route Choice Modeling: Preliminary Ideas April 25, 2013. Swiss Transportation Research Conference (STRC), Ascona, Switzerland.


@Misc{Kazagli_STRC-2013,
  author = {Evanthia Kazagli and Jingmin Chen and Michel Bierlaire},
  title = {Incorporating {\textquotedblleft}Mental Maps{\textquotedblright} in Route Choice Modeling: Preliminary Ideas},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Kazagli_STRC-2013.pdf}},
  year = {2013},
  note = {Presented at Swiss Transportation Research Conference (STRC), Ascona, Switzerland}}}

Awards

2013

Evanthia Kazagli. Best Master Thesis, Swedish Operations Research Association.
The prize of the Best Master Thesis in the field of Operations Research is awarded every year by the Swedish Operations Research Association to encourage the students working in the field and to help disseminate high-quality thesis. Eva's thesis, entitled "Arterial Travel Time Estimation from Automatic Number Plate Recognition Data", that was elaborated in the Division of Traffic and Logistics, Dept. of Transport Science at KTH, and supervised by Prof. Haris Koutsopoulos, won the prize for 2012..

Reviewing

Research projects

2013

Revisiting the Route Choice Problem: A Multi-Level Modeling Framework for Route Choice Analysis Based On Latent Constructs

This project aims at developing behavioral models integrating the latent constructs that drive travel behavior. The objective of the project is to set the foundations of an innovative framework that facilitates the analysis and prediction of route choice behavior. Motivated by the complexity of the route choice models, we build on solid ground of the current state of the art and add on it by proposing a new approach that reduces model complexity and brings great flexibility to the analysis. The approach is inspired by the fact that people break down the complexity of the environment by forming representations of their surrounding space. Following this reasoning, we replace the conventional representation of routes which is based on paths, i.e. link-by-link sequences on the network model, with more aggregate elements that we denote as mental representation items. This key feature of the framework allows us to reduce the complexity of the model and at the same time is more behaviorally realistic.
- Oct 01, 2013 - Sep 30, 2016
- Sponsor: Swiss National Science Foundation
- Principal investigator: Michel Bierlaire
- Project manager: Matthieu de Lapparent
- Collaborator: Evanthia Kazagli

EPFL courses

Fall 2017

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Meritxell Pacheco, Anna Fernandez Antolin, Evanthia Kazagli, Yuki Oyama
- Webpage: http://transp-or.epfl.ch/courses/dca2017

Fall 2016

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Evanthia Kazagli, Anna Fernandez Antolin, Meritxell Pacheco
- Webpage: http://transp-or.epfl.ch/courses/dca2016

Spring 2016

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Matthieu de Lapparent, Shadi Sharif Azadeh
- Teaching assistants: Anna Fernandez Antolin, Tom�s Robenek, Yousef Maknoon, Evanthia Kazagli
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2016/index.php

Fall 2015

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturers: Michel Bierlaire, Matthieu de Lapparent
- Teaching assistants: Evanthia Kazagli, Anna Fernandez Antolin
- Webpage: http://transp-or.epfl.ch/courses/dca2015/

Spring 2015

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Matthieu de Lapparent, Shadi Sharif Azadeh
- Teaching assistants: Evanthia Kazagli, Anna Fernandez Antolin, Iliya Markov, Yousef Maknoon
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2015/index.php

Fall 2014

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturers: Michel Bierlaire, Matthieu de Lapparent
- Teaching assistants: Anna Fernandez Antolin, Evanthia Kazagli
- Webpage: http://transp-or.epfl.ch/courses/dca2014/

Fall 2013

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturers: Michel Bierlaire, Amanda Stathopoulos
- Teaching assistants: Evanthia Kazagli, Anna Fernandez Antolin
- Webpage: http://transp-or.epfl.ch/courses/dca2013/

Spring 2013

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Michel Bierlaire, Jianghang Chen
- Teaching assistants: Evanthia Kazagli, Tom�s Robenek
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2013

Various lectures

2017

Hybrid Choice Models (ctd).
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 16, 2017 - Feb 16, 2017
- Lecturer: Matthieu de Lapparent
- Assistants: Evanthia Kazagli, Meritxell Pacheco, Anna Fernandez Antolin
Logit Mixture; Hybrid Choice Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 15, 2017 - Feb 15, 2017
- Lecturer: Matthieu de Lapparent
- Assistants: Evanthia Kazagli, Meritxell Pacheco, Anna Fernandez Antolin
Forecasting; Combining RP and SP.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 14, 2017 - Feb 14, 2017
- Lecturer: Meritxell Pacheco
- Assistants: Evanthia Kazagli, Matthieu de Lapparent, Anna Fernandez Antolin
Nested logit; Specification testing.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 13, 2017 - Feb 13, 2017
- Lecturer: Evanthia Kazagli
- Assistants: Meritxell Pacheco, Matthieu de Lapparent, Anna Fernandez Antolin
Introduction; Logit estimation.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 12, 2017 - Feb 12, 2017
- Lecturer: Evanthia Kazagli
- Assistants: Meritxell Pacheco, Matthieu de Lapparent, Anna Fernandez Antolin

2016

Logit Mixture; Combining SP and RP.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 23, 2016 - Mar 23, 2016
- Lecturer: Matthieu de Lapparent
- Assistants: Evanthia Kazagli, Anna Fernandez Antolin
Forecasting; Nested Logit.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 22, 2016 - Mar 22, 2016
- Lecturer: Anna Fernandez Antolin
- Assistants: Evanthia Kazagli, Matthieu de Lapparent
Logit Models; Specification testing.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 21, 2016 - Mar 21, 2016
- Lecturer: Anna Fernandez Antolin
- Assistants: Evanthia Kazagli, Matthieu de Lapparent
Introduction; binary choice.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 20, 2016 - Mar 20, 2016
- Lecturer: Evanthia Kazagli
- Assistants: Anna Fernandez Antolin, Meritxell Pacheco

Master theses

2017

Modeling Heterogeneity of Drivers Route Choice Behavior in Quebec, Mathieu Plourde (Civil Engineering)
- Supervision: Evanthia Kazagli, Matthieu de Lapparent, Michel Bierlaire
- External expert: Charisma Choudhury

2014

Individual activity-travel analysis based on smartphone WiFi data, Amélie Buisson (Civil Engineering)
- Supervision: Evanthia Kazagli, Antonin Danalet
- External expert: Dr Francisco Pereira
Mode Choice Analysis Using Smartphone Data, Michael Friederich (Civil Engineering)
- Supervision: Evanthia Kazagli, Marija Nikolic, Anna Fernandez Antolin
- External expert:

Semester projects

2017

Identifying the objectives of car drivers route choice behavior, Nicola Marco Ortelli

Supervision: Evanthia Kazagli, Marija Nikolic, Michel Bierlaire
The goal of this project is to shed light on the underlying objectives of car drivers' behavior --- pertaining to their route choices --- when traveling from one location of a transportation network to another. The student will use clustering methods, defined on the basis of different measures of similarity, that are associated with potential objectives such as the minimization of the travel time, the length or the complexity of a route. The results of the clustering will be analyzed to draw insights into the use of specific objectives depending on the features of the trip, such as the origin and destination points, and the departure time. The project involves an initial stage of data processing. The student needs to have good programming skills (Matlab or equivalent) and good knowledge of statistics. Familiarity with SQL is a plus.

Analysis of pedestrian group behavior based on tracking data and pattern recognition methods, Montesinos Ferrer Martí

Supervision: Marija Nikolic, Evanthia Kazagli, Zhengchao Wang
The objective of this project is to analyze the group behavior among pedestrians based on individual trajectory data. The data is collected in Lausanne train station, where a large-scale network of smart sensors has been used to track pedestrians. The project aims to improve the understanding of group behavior among pedestrians and its impact on pedestrian dynamics. It involves the following steps: (i) Development/selection of suitable methods (e.g. data mining/pattern recognition) for identification of individuals walking together, based on pedestrian trajectory data, and their implementation. (ii) Analysis focused on the behavior of identified groups; (iii) Comparison of the findings with the existing empirical basis, as well as with the proposed theories and models that take group dynamics into account. The student needs to have good programming skills (Scala/Matlab), and knowledge of statistical analysis.

2016

4. Modeling Route Choice in Quebec City Using Mental Representations, Mathieu Plourde

Supervision: Evanthia Kazagli, Matthieu de Lapparent, Michel Bierlaire
In this project, we build upon previous work proposed by Kazagli et al., 2016 to model route choice for a big network and dataset concerning the city of Quebec. We aim first to define the mental representation items (MRIs) for the case study and then to derive operational route choice models based on them. A GPS dataset from the city of Quebec is available and will be used for this purpose. The focus of the project is methodological.

Modeling route choice in Québec using mental representations, Mathieu Plourde

Supervision: Evanthia Kazagli, Matthieu de Lapparent, Michel Bierlaire
In this project, we aim at simplifying the route choice problem by modeling the strategic decisions of people --represented by the mental representations of their itineraries-- instead of the operational ones --represented by paths. We define an abstracted graph based on what we denote mental representation item (MRI) and we derive operational route choice models based on it. A GPS dataset from the city of Quebec is available and will be used for this purpose. Hence, the project is divided in two main parts; the first and technical part which involves data processing, and the second methodological part which involves the development of a model for the MRI network.

2015

Development of an aggregate route choice model for a big network, Arriagada Diego Alexandre

Supervision: Evanthia Kazagli, Matthieu de Lapparent, Michel Bierlaire
The use of random utility models for route choice analysis involves challenges stemming from the high requirements in data and data processing, the physical overlap of paths, and the large size of the choice set. These factors increase the complexity of the models significantly. In order to simplify the problem, a novel approach based on an aggregate representation of route choices has been proposed. The conventional representation and modeling approach is based on path alternatives constructed as link-by-link sequences on the network. This approach entails a very large number of possible paths connecting a given origin and destination (OD), and high correlation among the alternative paths. In this work, we claim that a path is solely the manifestation of the route choice, i.e. the way the traveler implements her decision to take a specific route, and we replace the paths with aggregate elements that we denote as Mental Representation Items (MRIs). This key feature allows us to reduce the complexity of the model and at the same time is more behaviorally realistic. The aim of this project is to extend this approach and apply it in a big network for which information about congestion is available. A GPS dataset from the city of Quebec is available and will be used for this purpose. Knowledge of statistical mathematics and familiarity with MATLAB and SQL are required. Geographic Information Systems (GIS) software will be used for completing this project.

2013-2014

Identify User’s Locations of Interest from Smartphone WiFi Data, Amélie Buisson (GC) (Civil Engineering)

Supervision: Evanthia Kazagli, Antonin Danalet, Michel Bierlaire
Smartphone is a powerful and convenient tool for collecting a variety of data (location, social interaction, and more) that can be useful for individual mobility analysis. Most of the ongoing research relies on GPS to acquire accurate location. GPS though is expensive in terms of battery consumption. In addition, the GPS sensor embedded in mobile phones fail in practice more often than dedicated GPS devices. Yet, smartphones are endowed with multiple sensors from which location can be inferred. Wifi sensors provide stable indoor location data and have been identified as a potential alter- native to indicate location that can well serve in addition and complementary to GPS data to advance mobility learning. The location extraction from Wi-fi records permits the detection of users� regular places of visit, the frequency and intensity (number of times) of visiting these places, as well as patterns such as the time of day and duration of visit. This kind of information is relevant for the identification of activity locations making use of clustering techniques, and after further analysis they can support measuring the activity space and intensity of activity participation of the user. By fusing the information about activity locations with land use and points of interest (POI) data, as well as with more data acquired from the smartphone sensors (e.g. phone status, Bluetooth, charging, phone interaction etc.), and taking into account temporal dimensions, it is then possible to infer the type of activity at these location (including home and work locations) and subsequently trip/ activity purposes can be disclosed. In addition to the above, and building on the identification of meaningful clusters, WiFi data have the potential to assist the identification of origins and destinations of trips (often missing in case of GPS). This information can then be used for improving and validating trip detection algorithms, which currently appear to be problematic and hence introduce biases in the subsequent stage of map-matching (e.g. one a known trip is segmented in several due to the limitations of the algorithm and GPS data). This project aims at exploiting the advantages of the WiFi data discussed above for individual mobility analysis.

Mode choice analysis from a large smartphone dataset, Mikael Nicolas Xavier Friederich (Civil Engineering)

Supervision: Evanthia Kazagli, Marija Nikolic
Smartphone is a powerful and convenient tool for collecting a variety of data (location, social interaction, and more) that can be useful for individual mobility analysis. One of the advantages of smartphone data is the ability to collect data over longer periods of time (panel data) without burdening the respondent. Having such resolution of information enables us to gain better insight into the general mobility style of people than it would be possible by means of traditional one- or two-day travel surveys. It becomes clear that smartphone data have great potential with respect to analysing travel- ers� profiles and disclose systematic mobility (e.g habit, morning or afternoon routines etc.) and switching behavior patterns (departure time, chosen route, mode). This project focuses on such higher-order mobility styles in order to shed light on travel behavior.

Exploration of smartphone users trip data to investigate travel behavior, Mikael Nicolas Xavier Friederich (Civil Engineering)

Supervision: Evanthia Kazagli, Marija Nikolic
Smartphone is a powerful and convenient tool for collecting a variety of data (location, social interaction, and more) that can be useful for individual mobility analysis. One of the advantages of smartphone data is the ability to collect data over longer periods of time (panel data) without burdening the respondent. Having such resolution of information enables us to gain better insight into the general mobility style of people than it would be possible by means of traditional one- or two-day travel surveys. This project aims at unveiling frequent behaviours in terms of space, i.e., the regions of space traversed during movements and understand the processes generating them. The work elaborated in the project is expected to support our effort in incorporating travelers� mental/ spatial represen- tation items (MRI) in route choice modeling. More specifically, the goal of this bigger project is to develop a modeling framework where the route choice decisions will take place in a higher/ concep- tual level. Path alternatives will be constructed as �replaced by� sequences of mental geo-marked items �akin to the concept of anchor points as elements of travelers� mental maps in cognitive science. We are interested in car route choice, hence the scope of this semester project will also focus on car trips. In this context, processing and analysing the trips of the smartphone users can reveal the most frequently traversed points or segments of the network (both in an aggregate but also in an individual level) that can signify such items in the network.

Exploring pedestrian mobility using video tracking data in Lausanne train station, Babel Hugo Louis

Supervision: Marija Nikolic, Evanthia Kazagli
Pedestrians, contrary to the other modes, do not have defined network and they do not follow strict constraints. A characteristic feature of pedestrian route choice is that routes are continuous trajectories in time and space - pedestrians choose a route from an infinite set of alternatives. As a consequence of these facts we have observed the distribution of walked distances and travel times for specific origin-destination pairs at the train station in Laussane, during the morning rush hour. The goal of this project is to analyse the distribution of walked distances and corresponding travel times and speed values based on pedestrian trajectories collected at the train station in Lausanne. Here we would like to answer the questions such as: 1) Is the motion of pedestrians random or does it follow a specific pattern? How can we characterize it? 2) What is the impact of congestion on the mentioned observables? 3) Do familiarity with the place, the attractiveness of shops and signs found along the corridors affect pedestrian motion behaviour and how? What are the other factors that cause deviations from a straight line motion? Programming skills and knowledge of statistical mathematics are required.

2012-2013

Mobility learning from smartphone WIFI data, Amélie Buisson (Civil Engineering)

Supervision: Jingmin Chen, Evanthia Kazagli, Marija Nikolic
Smartphone is a powerful and convenient platform for collecting location data for mobility behavior research. Most of the research relies on GPS to get accurate location, or GSM to get massively available but imprecise location. This project investigates the feasibility of using WIFI data for mobility behavior research. The dataset is collected from 200 smartphones over 2 years. The data collection application (EPFLScope) records all nearby WIFI access points (AP) every 3-5 minutes. Some of the WIFI access points are associated with location information. Therefore, it is possible to identify the location of the smartphone according to the nearby WIFI AP. With this location information, we can further understand spatial and temporal mobility patterns.

2013

Enhancement of Naville's Press Delivery Regulation Tool: An Exploratory Analysis, Lea Kissling (Mathematics)

Supervision: Evanthia Kazagli, Amanda Stathopoulos
The aim of this project is to explore data driven complementary strategies to the existing allocation strategy of Naville, in order to provide guidance for potential improvements of the existing allocation tool of the company. In this project the student will investigate the potential benefits of including a wider set of data in order to identify press demand patterns over time. Accounting for consumer profiles, detailed sale points data, geographical area, external events, etc., will enable a more accurate understanding and anticipation of demand fluctuations. Drawing from the results of this analysis we will provide recommendations for improvements of the existing tool used by Naville. The proposed exploratory project can form the basis for a further work on the challenging theme of modeling and predicting demand and optimizing distribution strategies in the context of declining and uncertain evolution of the press market.

Marija Nikolic

Marija Nikolic has been a member of the laboratory from Sep 01, 2012 to Aug 31, 2018

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Marija Nikolic.

Journal articles

2019

Nikolic M., Bierlaire M., de Lapparent M., Scarinci R. (2019). Multi-class speed-density relationship for pedestrian traffic. Transportation Science 53 (3):642-664


@Article{NikBieLapSca_2018_TS,
  author = {Marija Nikolic and Michel Bierlaire and Matthieu {de Lapparent} and Riccardo Scarinci},
  title = {Multi-class speed-density relationship for pedestrian traffic},
  journal = {Transportation Science},
  year = {2019},
  volume = {53},
  number = {3},
  pages = {642-664},
  DOI = {10.1287/trsc.2018.0849},
  note = {Accepted on Apr 30, 2018}}}

2018

Nikolic M., Bierlaire M. (2018). Data-driven spatio-temporal discretization for pedestrian flow characterization. Transportation Research Part C: Emerging Technologies 94 :185-202


@Article{NikBie17_DataDrivenDiscretization,
  author = {Marija Nikolic and Michel Bierlaire},
  title = {Data-driven spatio-temporal discretization for pedestrian flow characterization},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2018},
  volume = {94},
  pages = {185-202},
  DOI = {10.1016/j.trc.2017.08.026},
  note = {Accepted on Aug 30, 2017}}}

2017

Nikolic M., Bierlaire M. (2017). Data-driven spatio-temporal discretization for pedestrian flow characterization. Transportation Research Procedia 23 :188�207

We propose a novel approach to pedestrian flow characterization. The definitions of density, flow and velocity existing in the literature are extended through a data-driven spatio-temporal discretization framework. The framework is based on three-dimensional Voronoi diagrams. Synthetic data is used to empirically investigate the performance of the approach and to illustrate its advantages. Our approach outperforms the considered approaches from the literature in terms of the robustness with respect to the simulation noise and with respect to the sampling frequency. Additionally, the proposed approach is by design (i) independent from an arbitrarily chosen discretization; (ii) appropriate for the multidirectional composition of pedestrian traffic; (iii) able to reflect the heterogeneity of the pedestrian population; and (iv) applicable to pedestrian trajectories described either analytically or as a sample of points.
```
@Article{NikBier_ISTTT22,
  author = {Marija Nikolic and Michel Bierlaire},
  title = {Data-driven spatio-temporal discretization for pedestrian flow characterization},
  journal = {Transportation Research Procedia},
  year = {2017},
  volume = {23},
  pages = {188{\textendash}207},
  DOI = {10.1016/j.trpro.2017.05.012},
  note = {Accepted on Feb 16, 2017}}}
```


@Article{HaenLamBierLedeNiko16,
  author = {Flurin H\"anseler and William Lam and Michel Bierlaire and Gael Lederrey and Marija Nikolic},
  title = {A dynamic network loading model for anisotropic and congested pedestrian flows},
  journal = {Transportation Research Part B: Methodological},
  year = {2017},
  volume = {95},
  pages = {149-168},
  DOI = {10.1016/j.trb.2016.10.017},
  note = {Accepted on Oct 31, 2016}}}

2016

Nikolic M., Bierlaire M., Farooq B., de Lapparent M. (2016). Probabilistic speed-density relationship for pedestrian traffic. Transportation Research Part B: Methodological 89 :58-81


@Article{NikBieFarLap_ProbabilisticSpeedDensity,
  author = {Marija Nikolic and Michel Bierlaire and Bilal Farooq and Matthieu {de Lapparent}},
  title = {Probabilistic speed-density relationship for pedestrian traffic},
  journal = {Transportation Research Part B: Methodological},
  year = {2016},
  volume = {89},
  pages = {58-81},
  DOI = {10.1016/j.trb.2016.04.002},
  note = {Accepted on Apr 02, 2016}}}

2014

Nikolic M., Bierlaire M. (2014). Pedestrian-oriented Flow Characterization. Transportation Research Procedia 2 :359-366

Definitions of flow indicators are derived by adapting Edie's definitions through a stream-based approach and a data-driven spatio-temporal discretization framework. The stream-based approach accounts for the multidirectional nature of pedestrian flows. The data-driven discretization framework, based on three-dimensional Voronoi tessellations, accounts for the pedestrian heterogeneity in the case when only samples of points are available, instead of the analytical description of trajectories. The proposed approach enables the pedestrian flow characterization to be applicable to any space-time domain of interest.
```
@Article{NikoBier14,
  author = {Marija Nikolic and Michel Bierlaire},
  title = {Pedestrian-oriented Flow Characterization},
  journal = {Transportation Research Procedia},
  year = {2014},
  volume = {2},
  pages = {359-366},
  DOI = {10.1016/j.trpro.2014.09.032},
  note = {Accepted on Oct 02, 2014}}}
```

Book chapters

2020


@InProceedings{BierScarNikoOyamMolyWang20,
  author = {Michel Bierlaire and Riccardo Scarinci and Marija Nikolic and Yuki Oyama and Nicholas Molyneaux and Zengchao Wang},
  title = {Methodologies for understanding and improving pedestrian mobility},
  year = {2020},
  booktile = {Handbook of Urban Mobilities},
  editor = {Ole B. Jensen and  Claus Lassen and  Vincent Kaufmann and  Malene Freudendal-Pedersen and  Ida Sofie G{\o}tzsche Lange},
  series = {Routledge International Handbooks},
  publisher = {Routledge}}}

Technical reports

2017

Nikolic M., Bierlaire M., de Lapparent M., Scarinci R. (2017). Multi-class speed-density relationship for pedestrian traffic. Report TRANSP-OR 170115


@TechReport{NikBieLapSca_MCVK_2017,
  author = {Marija Nikolic and Michel Bierlaire and Matthieu {de Lapparent} and Riccardo Scarinci},
  title = {Multi-class speed-density relationship for pedestrian traffic},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2017},
  type = {Technical Report},
  number = {TRANSP-OR 170115},
  address = {Lausanne, Switzerland}}}

2016

Nikolic M., Bierlaire M. (2016). Data-driven characterization of pedestrian flows. Report TRANSP-OR 160815


@TechReport{NikBie_3DVoronoi_2016,
  author = {Marija Nikolic and Michel Bierlaire},
  title = {Data-driven characterization of pedestrian flows},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2016},
  type = {Technical Report},
  number = {TRANSP-OR 160815},
  address = {Lausanne, Switzerland}}}

2015

Hänseler F., Lam W., Bierlaire M., Lederrey G., Nikolic M. (2015). A dynamic network loading model for anisotropic and congested pedestrian flows. Report TRANSP-OR 151026


@TechReport{HaLaBiLeNi_2015,
  author = {Flurin H\"anseler and William Lam and Michel Bierlaire and Gael Lederrey and Marija Nikolic},
  title = {A dynamic network loading model for anisotropic and congested pedestrian flows},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2015},
  type = {Technical Report},
  number = {TRANSP-OR 151026},
  address = {Lausanne, Switzerland}}}

Nikolic M., Bierlaire M., Farooq B. (2015). Probabilistic speed-density relationship for pedestrian traffic: a data-driven approach. Report TRANSP-OR 150411


@TechReport{NikBieFar_PedMixFD_2015,
  author = {Marija Nikolic and Michel Bierlaire and Bilal Farooq},
  title = {Probabilistic speed-density relationship for pedestrian traffic: a data-driven approach},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2015},
  type = {Technical Report},
  number = {TRANSP-OR 150411},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2017

Nikolic M., Bierlaire M. (2017) Review of transportation mode detection approaches based on smartphone data. Proceedings of the 17th Swiss Transport Research Conference (STRC), May, 17-19, Ascona, Switzerland


@InProceedings{NikBie_STRC2017,
  author = {Marija Nikolic and Michel Bierlaire},
  title = {Review of transportation mode detection approaches based on smartphone data},
  booktime = {Proceedings of the 17th Swiss Transport Research Conference (STRC), May, 17-19},
  year = {2017},
  address = {Ascona, Switzerland}}}

2015

Nikolic M., Bierlaire M. (2015) Pedestrian flow characterization based on spatio-temporal Voronoi tessellations. Proceedings of the 15th Swiss Transportation Research Conference (STRC), 15 -17 April, Ascona, Switzerland


@InProceedings{NikBie_STRC2015,
  author = {Marija Nikolic and Michel Bierlaire},
  title = {Pedestrian flow characterization based on spatio-temporal Voronoi tessellations},
  booktime = {Proceedings of the 15th Swiss Transportation Research Conference (STRC), 15 -17 April},
  year = {2015},
  address = {Ascona, Switzerland}}}

2014


@InProceedings{NikBieFar_STRC2014,
  author = {Marija Nikolic and Michel Bierlaire and Bilal Farooq},
  title = {Probabilistic speed-density relationship for pedestrians based on data driven space and time representation},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), 14 - 16 May},
  year = {2014},
  address = {Ascona, Switzerland}}}

2013


@InProceedings{Nikolic_Farooq_Bierlaire_STRC_2013,
  author = {Marija Nikolic and Bilal Farooq and Michel Bierlaire},
  title = {Exploratory analysis of pedestrian flow characteristics in mobility hubs using trajectory data},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), 24-26 April},
  year = {2013},
  address = {Ascona, Switzerland}}}

Talks

2018

Nikolic M., Bierlaire M. Modeling of human movement behavior June 14, 2018. 4th Advances in Destination Management - Visitor Data and Decision Making: Challenges and Opportunities, University of St. Gallen, St. Gallen, Switzerland.


@Misc{NikBie_PanelADM2018,
  author = {Marija Nikolic and Michel Bierlaire},
  title = {Modeling of human movement behavior},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/NikBie_PanelADM2018.pdf}},
  year = {2018},
  note = {Presented at 4th Advances in Destination Management - Visitor Data and Decision Making: Challenges and Opportunities, University of St. Gallen, St. Gallen, Switzerland}}}

2017

Nikolic M., Bierlaire M., Markov I., Bondo R. Pedestrian multi-class speed-density relationship: evaluation of integrated and sequential approach September 12, 2017. 6th Symposium of the European Association for Research in Transportation, Faculty of Civil and Environmental Engineering, Technion, Haifa, Israel.


@Misc{NBMK_hEART2017,
  author = {Marija Nikolic and Michel Bierlaire and Iliya Markov and Romain Bondo},
  title = {Pedestrian multi-class speed-density relationship: evaluation of integrated and sequential approach},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/NBMK_hEART2017.pdf}},
  year = {2017},
  note = {Presented at 6th Symposium of the European Association for Research in Transportation, Faculty of Civil and Environmental Engineering, Technion, Haifa, Israel}}}

Nikolic M., Bierlaire M. Data-driven spatio-temporal discretization for pedestrian flow characterization August 23, 2017. Intelligent Traffic Control and Service in Big Data Environment, EPFL, Lausanne, Switzerland.


@Misc{NikBie_EPFL-Tongji,
  author = {Marija Nikolic and Michel Bierlaire},
  title = {Data-driven spatio-temporal discretization

for pedestrian flow characterization},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/NikBie_EPFL-Tongji.pdf}},
  year = {2017},
  note = {Presented at Intelligent Traffic Control and Service in Big Data Environment, EPFL, Lausanne, Switzerland}}}

Nikolic M., Bierlaire M. Data-driven spatio-temporal discretization for pedestrian flow characterization July 24, 2017. 22nd International Symposium on Transportation and Traffic Theory, , Northwestern University, Evanston, USA.


@Misc{NikBie_ISTTT22,
  author = {Marija Nikolic and Michel Bierlaire},
  title = {Data-driven spatio-temporal discretization

for pedestrian flow characterization},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/NikBie_ISTTT22.pdf}},
  year = {2017},
  note = {Presented at 22nd International Symposium on Transportation and Traffic Theory, , Northwestern University, Evanston, USA}}}

Nikolic M., Bierlaire M. Review of transportation mode detection approaches based on smartphone data May 18, 2017. 17th Swiss Transportation Research Conference, Ascona, Switzerland.


@Misc{NikBie_STRC2017,
  author = {Marija Nikolic and Michel Bierlaire},
  title = {Review of transportation mode detection

approaches based on smartphone data},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/NikBie_STRC2017.pdf}},
  year = {2017},
  note = {Presented at 17th Swiss Transportation Research Conference, Ascona, Switzerland}}}

Nikolic M. Data-driven fundamental models for pedestrian movements March 09, 2017. Workshop on Transportation Network and Management, EPFL, Lausanne.


@Misc{Nikolic_09032017,
  author = {Marija Nikolic},
  title = {Data-driven fundamental models for pedestrian movements},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Nikolic_09032017.pdf}},
  year = {2017},
  note = {Presented at Workshop on Transportation Network and Management, EPFL, Lausanne}}}

2016

Nikolic M., Bierlaire M. Data-driven characterization of pedestrian flows September 14, 2016. hEART 2016, 5th Symposium of the European Association for Research in Transportation, Delft University of Technology, Delft, the Netherlands.


@Misc{hEART2016_3DVoro,
  author = {Marija Nikolic and Michel Bierlaire},
  title = {Data-driven characterization of pedestrian flows},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/hEART2016_3DVoro.pdf}},
  year = {2016},
  note = {Presented at hEART 2016, 5th Symposium of the European Association for Research in Transportation, Delft University of Technology, Delft, the Netherlands}}}

Nikolic M., Bierlaire M., de Lapparent M., Scarinci R. Multi-class speed-density relationship for pedestrian traffic September 14, 2016. hEART 2016, 5th Symposium of the European Association for Research in Transportation, Delft University of Technology, Delft, the Netherlands.


@Misc{hEART2016_MCV-K,
  author = {Marija Nikolic and Michel Bierlaire and Matthieu {de Lapparent} and Riccardo Scarinci},
  title = {Multi-class speed-density

relationship for pedestrian traffic},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/hEART2016_MCV-K.pdf}},
  year = {2016},
  note = {Presented at hEART 2016, 5th Symposium of the European Association for Research in Transportation, Delft University of Technology, Delft, the Netherlands}}}

Nikolic M., Bierlaire M. Data-driven characterization of pedestrian traffic June 14, 2016. Ninth Triennial Symposium on Transportation Analysis (TRISTAN IX), Oranjestad, Aruba.


@Misc{TRISTAN2016_3DVoro,
  author = {Marija Nikolic and Michel Bierlaire},
  title = {Data-driven characterization of

pedestrian traffic},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/TRISTAN2016_3DVoro.pdf}},
  year = {2016},
  note = {Presented at Ninth Triennial Symposium on Transportation Analysis (TRISTAN IX), Oranjestad, Aruba}}}

Nikolic M., Bierlaire M., de Lapparent M., Scarinci R. Multi-class speed-density relationship for pedestrian traffic June 14, 2016. Ninth Triennial Symposium on Transportation Analysis (TRISTAN IX), Oranjestad, Aruba.


@Misc{TRISTAN2016_MCVK,
  author = {Marija Nikolic and Michel Bierlaire and Matthieu {de Lapparent} and Riccardo Scarinci},
  title = {Multi-class speed-density

relationship for pedestrian traffic},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/TRISTAN2016_MCVK.pdf}},
  year = {2016},
  note = {Presented at Ninth Triennial Symposium on Transportation Analysis (TRISTAN IX), Oranjestad, Aruba}}}

Nikolic M., Bierlaire M. Data-driven characterization of pedestrian flows May 18, 2016. 16th Swiss Transportation Research Conference, Ascona, Switzerland.


@Misc{NikBie_STRC2016,
  author = {Marija Nikolic and Michel Bierlaire},
  title = {Data-driven characterization of

pedestrian flows},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/NikBie_STRC2016.pdf}},
  year = {2016},
  note = {Presented at 16th Swiss Transportation Research Conference, Ascona, Switzerland}}}

2015

Nikolic M., Bierlaire M., Hänseler F. Data-driven characterization of multidirectional pedestrian traffic October 28, 2015. TGF '15, TU Delft, Delft, The Netherlands.


@Misc{Nik_TGF2015,
  author = {Marija Nikolic and Michel Bierlaire and Flurin H\"anseler},
  title = {Data-driven characterization of multidirectional pedestrian traffic},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Nik_TGF2015.pdf}},
  year = {2015},
  note = {Presented at TGF '15, TU Delft, Delft, The Netherlands}}}

Nikolic M., Bierlaire M., Hänseler F. Characterization of multidirectional pedestrian flows based on three-dimensional Voronoi tessellations September 09, 2015. 4th Symposium of the European Association for Research in Transportation, Technical University of Denmark, Copenhagen, Denmark.


@Misc{NikBie_hEART2015,
  author = {Marija Nikolic and Michel Bierlaire and Flurin H\"anseler},
  title = {Characterization of multidirectional pedestrian flows based on three-dimensional Voronoi tessellations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/NikBie_hEART2015.pdf}},
  year = {2015},
  note = {Presented at 4th Symposium of the European Association for Research in Transportation, Technical University of Denmark, Copenhagen, Denmark}}}

Nikolic M., Bierlaire M. Pedestrian flow characterization based on spatio-temporal Voronoi tessellations April 15, 2015. 15th Swiss Transportation Research Conference, Ascona, Switzerland.


@Misc{NikBie_STRC2015,
  author = {Marija Nikolic and Michel Bierlaire},
  title = {Pedestrian flow characterization based on spatio-temporal Voronoi tessellations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/NikBie_STRC2015.pdf}},
  year = {2015},
  note = {Presented at 15th Swiss Transportation Research Conference, Ascona, Switzerland}}}

2014

Nikolic M., Bierlaire M. Pedestrian-oriented flow characterization October 24, 2014. Pedestrian and Evacuation Dynamics conference (PED 2014), Delft University of Technology, , Delft, the Netherlands.


@Misc{NikBie_DelftPED2014,
  author = {Marija Nikolic and Michel Bierlaire},
  title = {Pedestrian-oriented flow characterization},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/NikBie_DelftPED2014.pdf}},
  year = {2014},
  note = {Presented at Pedestrian and Evacuation Dynamics conference (PED 2014), Delft University of Technology, , Delft, the Netherlands}}}

Nikolic M., Bierlaire M., Farooq B. Probabilistic speed-density relationship for heterogeneous pedestrian traffic September 11, 2014. 3rd Symposium of the European Association for Research in Transportation, University of Leeds, Leeds, United Kingdom.


@Misc{NikBiehEART2014,
  author = {Marija Nikolic and Michel Bierlaire and Bilal Farooq},
  title = {Probabilistic speed-density relationship for heterogeneous pedestrian traffic},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/NikBiehEART2014.pdf}},
  year = {2014},
  note = {Presented at 3rd Symposium of the European Association for Research in Transportation, University of Leeds, Leeds, United Kingdom}}}

Nikolic M., Bierlaire M., Farooq B. Probabilistic speed-density relationship for pedestrians based on data driven space and time representation May 15, 2014. Swiss Transport Research Conference, Ascona, Switzerland.


@Misc{NikBieFar_STRC2014,
  author = {Marija Nikolic and Michel Bierlaire and Bilal Farooq},
  title = {Probabilistic speed-density relationship for pedestrians based on data driven space and time representation},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/NikBieFar_STRC2014.pdf}},
  year = {2014},
  note = {Presented at Swiss Transport Research Conference, Ascona, Switzerland}}}

Nikolic M., Bierlaire M., Farooq B. Probabilistic speed-density relationship for pedestrians based on data driven space and time representation April 10, 2014. WORKSHOP ON PEDESTRIAN MODELS 2014, EPFL, Lausanne, Switzerland.


@Misc{NikBie_PED2014,
  author = {Marija Nikolic and Michel Bierlaire and Bilal Farooq},
  title = {Probabilistic speed-density relationship for pedestrians based on data driven space and time representation},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/NikBie_PED2014.pdf}},
  year = {2014},
  note = {Presented at WORKSHOP ON PEDESTRIAN MODELS 2014, EPFL, Lausanne, Switzerland}}}

2013

Nikolic M., Bierlaire M., Farooq B. Spatial tessellations of pedestrian dynamics September 05, 2013. 2nd Symposium of the European Association for Research in Transportation, Stockholm, Sweden.


@Misc{Nikolic_hEART_2013,
  author = {Marija Nikolic and Michel Bierlaire and Bilal Farooq},
  title = {Spatial tessellations of pedestrian dynamics},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Nikolic_hEART_2013.pdf}},
  year = {2013},
  note = {Presented at 2nd Symposium of the European Association for Research in Transportation, Stockholm, Sweden}}}

Nikolic M. Pedestrian flow characteristics based on individual trajectories July 15, 2013. DATA SIM Summer School 2013, Mobility Modeling and Big Data Sources, Hasselt University, Hasselt, Belgium.


@Misc{Nikolic_DATASIM-2013,
  author = {Marija Nikolic},
  title = {Pedestrian flow characteristics based on individual trajectories},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Nikolic_DATASIM-2013.pdf}},
  year = {2013},
  note = {Presented at DATA SIM Summer School 2013, Mobility Modeling and Big Data Sources, Hasselt University, Hasselt, Belgium}}}

Nikolic M., Farooq B., Bierlaire M. Exploratory analysis of pedestrian flow characteristics in mobility hubs using trajectory data April 25, 2013. Swiss Transportation Research Conference (STRC), Ascona, Switzerland.


@Misc{Nikolic_STRC-2013,
  author = {Marija Nikolic and Bilal Farooq and Michel Bierlaire},
  title = {Exploratory analysis of pedestrian flow characteristics in mobility hubs using trajectory data},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Nikolic_STRC-2013.pdf}},
  year = {2013},
  note = {Presented at Swiss Transportation Research Conference (STRC), Ascona, Switzerland}}}

Reviewing

Research projects

2017

Leveraging Public and Open Data for Transportation Mode detection

Modern smartphones are more than just calling devices. They harbor a wealth of information that provides the transportation field with a new potential. In this project, researchers will create a transportation mode detection model based on telecommunication data from smartphone users combined with public transport-related data sources. The researchers are provided with anonymized telecommunication traces. As those data remain scarce, additional data will be identified from external sources including network infrastructure, route maps, time schedules in static or real-time form, microcensus, weather, etc. A probabilistic model will be developed to infer the transportation modes from those various data sources. The project lasts one year, and will be carried out by the Transport and Mobility Laboratory, directed by Prof. Michel Bierlaire. It is sponsored by Swisscom.
- Sep 04, 2017 - Sep 04, 2018
- Sponsor: Swisscom
- Principal investigator: Michel Bierlaire
- Project managers: Marija Nikolic, Riccardo Scarinci

2012

Pedestrian dynamics: flows and behavior

This project aims at developing mathematical models of pedestrian dynamics, both at aggregate and disaggregate levels. Integrated and holistic mathematical models will handle the complexity of this unique transport mode and help us to answer open research questions. in the future, such foundations will also allow to create the tools society needs to better understand pedestrian dynamics.
- Apr 01, 2012 - Mar 31, 2015
- Sponsor: Swiss National Science Foundation
- Principal investigator: Michel Bierlaire
- Project managers: Bilal Farooq, Riccardo Scarinci
- Collaborators: Antonin Danalet, Flurin H�nseler, Marija Nikolic

EPFL courses

Spring 2017

Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Riccardo Scarinci
- Teaching assistants: Marija Nikolic, Stefan Binder
- Webpage: http://transp-or.epfl.ch/courses/OptSim2017/

Spring 2016

Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Riccardo Scarinci, Yousef Maknoon
- Teaching assistants: Iliya Markov, Marija Nikolic
- Webpage: http://transp-or.epfl.ch/courses/OptSim2016/

Spring 2015

Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Riccardo Scarinci, Yousef Maknoon
- Teaching assistants: Tom�s Robenek, Marija Nikolic
- Webpage: http://transp-or.epfl.ch/courses/OptSim2015/

Spring 2014

Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Riccardo Scarinci, Jianghang Chen
- Teaching assistants: Tom�s Robenek, Marija Nikolic
- Webpage: http://transp-or.epfl.ch/courses/OptSim2014/

Fall 2012

Analyse III.
- Level: Bachelor
- Section: Civil Engineering
- Lecturer: None None
- Teaching assistant: Marija Nikolic

Master theses

2017

Integrating Bicycle Travel Demand to a Land-Use and Transport Model, Marc-Edouard Schultheiss (Civil Engineering)
- Supervision: Matthieu de Lapparent, Marija Nikolic, Michel Bierlaire
- External expert: Christopher Zegras

2016-2017

Information system for passenger discretionary activities in transport terminals, Federico Orsini (None)
- Supervision: Riccardo Scarinci, Marija Nikolic, Michel Bierlaire
- External expert: Riccardo Rossi

2014

A multi-class framework for a pedestrian cell transmission model accounting for population heterogeneity, Guy Cooper (Mathematics)
- Supervision: Flurin Hänseler, Marija Nikolic
- External expert:
Mode Choice Analysis Using Smartphone Data, Michael Friederich (Civil Engineering)
- Supervision: Evanthia Kazagli, Marija Nikolic, Anna Fernandez Antolin
- External expert:

Semester projects

2017

Identifying the objectives of car drivers route choice behavior, Nicola Marco Ortelli

Supervision: Evanthia Kazagli, Marija Nikolic, Michel Bierlaire
The goal of this project is to shed light on the underlying objectives of car drivers' behavior --- pertaining to their route choices --- when traveling from one location of a transportation network to another. The student will use clustering methods, defined on the basis of different measures of similarity, that are associated with potential objectives such as the minimization of the travel time, the length or the complexity of a route. The results of the clustering will be analyzed to draw insights into the use of specific objectives depending on the features of the trip, such as the origin and destination points, and the departure time. The project involves an initial stage of data processing. The student needs to have good programming skills (Matlab or equivalent) and good knowledge of statistics. Familiarity with SQL is a plus.

Analysis of pedestrian group behavior based on tracking data and pattern recognition methods, Montesinos Ferrer Martí

Supervision: Marija Nikolic, Evanthia Kazagli, Zhengchao Wang
The objective of this project is to analyze the group behavior among pedestrians based on individual trajectory data. The data is collected in Lausanne train station, where a large-scale network of smart sensors has been used to track pedestrians. The project aims to improve the understanding of group behavior among pedestrians and its impact on pedestrian dynamics. It involves the following steps: (i) Development/selection of suitable methods (e.g. data mining/pattern recognition) for identification of individuals walking together, based on pedestrian trajectory data, and their implementation. (ii) Analysis focused on the behavior of identified groups; (iii) Comparison of the findings with the existing empirical basis, as well as with the proposed theories and models that take group dynamics into account. The student needs to have good programming skills (Scala/Matlab), and knowledge of statistical analysis.

Planning of feeding station installment for a full electric large capacity urban bus system, Adrien Ruault (Computer science)

Supervision: Virginie Lurkin, Marija Nikolic, Michel Bierlaire
The integration of customer behavioural models in optimization provides a better understanding of the preferences of clients (the demand) to policy makers while planning for their systems (the supply). These preferences are formalized with discrete choice models, and the corresponding optimization models where supply and demand closely interact are associated with (mixed) integer optimization problems. One concrete application of this integration consists of an operator selling services to a market, each service at a given price to a finite number of customers, called the capacity of the service. We are interested in finding the best strategy in terms of pricing and capacity allocation in order to maximize the revenues of the operator. The project objectives can be tailored for both Master or Semester project students.

Models for pedestrian movements based on integrated and sequential clustering, Konde Romain Olivier Bondo

Supervision: Marija Nikolic, Iliya Markov, Michel Bierlaire
The focus of this study is the modeling of speed-density relationship for pedestrian movements using the potential of available data. The data set considered in this project contains pedestrian trajectories collected in the train station in Lausanne. To track pedestrians, a large-scale network of tracking sensors is installed in the station (Alahi et al., 2014). The analysis we have performed reveals a high scatter in the data. To characterize the observed scatter we have developed a multi-class model of the speed-density relationship based on the latent class modeling approach (Nikolic et al., 2017). The latent class approach allows for modeling the segmentation in the population and the movement behavior simultaneously. The aim of this project is the derivation of the model representing speed-density relationship based on a two-stage (sequential) approach. The first stage involves segmentation of pedestrian trajectory data, by using machine learning techniques (clustering). In the second stage, a separate speed-density model is to be estimated for each cluster discovered in the first stage. The performance of the approach will be tested using real data, and compared to the more integrated, latent class approach.

2016

Accounting for dynamics in pedestrian multi-class speed-density relationship, Marc-Edouard Schultheiss (Civil Engineering)

Supervision: Marija Nikolic, Matthieu de Lapparent, Michel Bierlaire
The relationship between speed and density plays an important role in modeling of pedestrian traffic. It is useful for planning and design of pedestrian facilities, and it is also a required input or calibration criterion for models of pedestrian dynamics. The relationship is specified under the assumption that the traffic system is at equilibrium (stationary and homogenous). The analysis we have performed, based on the data collected in the Lausanne train station, rules out the use of a unique equilibrium relationship due to a high scatter in the data. This scatter may be explained by the violation of the equilibrium assumptions, as documented in the literature. To characterize the observed scatter we have developed a multi-class model of the speed-density relationship based on the latent class modeling approach. The model is derived by relaxing the homogeneity assumption of equilibrium relationships. It is assumed that pedestrian population is heterogeneous (e.g. different trip purpose, different time to departure, etc.) and that this heterogeneity leads to the existence of multiple pedestrian classes that are characterized by different behavior. There are two specification issues related to the panel data set (data collected over multiple time periods for the same sample of individuals) that we use in our analysis. The first is serial correlation across the observations of the same individual due to unobserved individual factors that persist over time. The second is related to dynamics, meaning that the speed in one period may depend on the speed values in the past. We have addressed the first issue by introducing an agent effect in the model that captures individual related unobserved factors. We term this model the static model with agent effect. The aim of this project will be to deal with the second issue, or dynamics. We will start with the simplified assumption that the speed at time t is influenced by the speed at time t - 1 only. We term such a model a dynamic model with agent effect. The performance of the approach will be tested using real data.

2015-2016

Specification testing of fundamental diagrams for an anisotropic pedestrian network loading model, Joel Mateus Fonseca (Communication Systems)

Supervision: Flurin Hänseler, Marija Nikolic, Michel Bierlaire

2015

Development of a novel pedestrian walking model applicable to congested flows, Gael LEDERREY

Supervision: Flurin Hänseler, Marija Nikolic, Michel Bierlaire
We are in the process of developing a novel pedestrian walking model that can describe multi-directional and congested pedestrian flow. Given a certain demand, the model is supposed to predict travel times and density levels as accurately as possible. The basic idea thereby consists in discretizing walkable space into cells and links, and to compute for each link a speed based on an empirical density-speed relation. The goal of this project, which can be carried out as a Bachelor's, semester, or Master's thesis, is (i) to understand and improve the existing mathematical model, (ii) to accordingly update the computational model (written in Java), and (iii) to consider a real-world case study involving either a Swiss railway station, a Dutch bottleneck experiment or a pedestrian crossing in Hong Kong, China. In the long term, this model will be useful for real-time crowd monitoring and control, as well as for infrastructure dimensioning of e.g. a train station. Skills in object-oriented programming and a basic knowledge of statistical mathematics are required; knowledge of parallel computing is a plus. Semester: Spring 2015. If interested, please contact us at {flurin.haenseler,marija.nikolic}@epfl.ch. We're looking forward to hearing from you.

Pedestrian movement in train stations: modeling speed-density relationship for different classes of passengers, Laure Emma Rosine

Supervision: Marija Nikolic, Riccardo Scarinci, Michel Bierlaire
The increased number of passengers in train stations is causing congestion not only on trains, but also on platforms and underpasses. To better design and manage these infrastructures, pedestrian movement should be understood and modeled accurately. Fundamental Diagram (FD) plays an important role in the representation of pedestrian dynamics. FD models the relationship between density of pedestrians and the speed at which they are able to move. This macroscopic model represents the average behavior and does not take into account differences among pedestrians. They can differ in terms of their purpose of the trip (e.g. business/leisure), personal characteristics (e.g. age, gender), presence of luggage, etc. This heterogeneity can lead to different walking behavior of pedestrians and should be adequately modeled by the FD. This project aims to develop a Multi-Class Fundamental Diagram (MC-FD) assuming the existence of different classes of passengers in a train station. As a case study we will use the Lausanne train station where detailed pedestrian trajectories have been collected. The key elements of the project are: (i) literature review of MC-FD for both pedestrians and vehicles; (ii) development of the modeling assumptions employing empirical, qualitative and sociological considerations; (iii) model specification; (iv) sensitivity analysis, calibration and validation of the proposed model based on empirical data. Knowledge of statistical mathematics and familiarity with programming (MATLAB) are required.

2013-2014

Mode choice analysis from a large smartphone dataset, Mikael Nicolas Xavier Friederich (Civil Engineering)

Supervision: Evanthia Kazagli, Marija Nikolic
Smartphone is a powerful and convenient tool for collecting a variety of data (location, social interaction, and more) that can be useful for individual mobility analysis. One of the advantages of smartphone data is the ability to collect data over longer periods of time (panel data) without burdening the respondent. Having such resolution of information enables us to gain better insight into the general mobility style of people than it would be possible by means of traditional one- or two-day travel surveys. It becomes clear that smartphone data have great potential with respect to analysing travel- ers� profiles and disclose systematic mobility (e.g habit, morning or afternoon routines etc.) and switching behavior patterns (departure time, chosen route, mode). This project focuses on such higher-order mobility styles in order to shed light on travel behavior.

Exploration of smartphone users trip data to investigate travel behavior, Mikael Nicolas Xavier Friederich (Civil Engineering)

Supervision: Evanthia Kazagli, Marija Nikolic
Smartphone is a powerful and convenient tool for collecting a variety of data (location, social interaction, and more) that can be useful for individual mobility analysis. One of the advantages of smartphone data is the ability to collect data over longer periods of time (panel data) without burdening the respondent. Having such resolution of information enables us to gain better insight into the general mobility style of people than it would be possible by means of traditional one- or two-day travel surveys. This project aims at unveiling frequent behaviours in terms of space, i.e., the regions of space traversed during movements and understand the processes generating them. The work elaborated in the project is expected to support our effort in incorporating travelers� mental/ spatial represen- tation items (MRI) in route choice modeling. More specifically, the goal of this bigger project is to develop a modeling framework where the route choice decisions will take place in a higher/ concep- tual level. Path alternatives will be constructed as �replaced by� sequences of mental geo-marked items �akin to the concept of anchor points as elements of travelers� mental maps in cognitive science. We are interested in car route choice, hence the scope of this semester project will also focus on car trips. In this context, processing and analysing the trips of the smartphone users can reveal the most frequently traversed points or segments of the network (both in an aggregate but also in an individual level) that can signify such items in the network.

Exploring pedestrian mobility using video tracking data in Lausanne train station, Babel Hugo Louis

Supervision: Marija Nikolic, Evanthia Kazagli
Pedestrians, contrary to the other modes, do not have defined network and they do not follow strict constraints. A characteristic feature of pedestrian route choice is that routes are continuous trajectories in time and space - pedestrians choose a route from an infinite set of alternatives. As a consequence of these facts we have observed the distribution of walked distances and travel times for specific origin-destination pairs at the train station in Laussane, during the morning rush hour. The goal of this project is to analyse the distribution of walked distances and corresponding travel times and speed values based on pedestrian trajectories collected at the train station in Lausanne. Here we would like to answer the questions such as: 1) Is the motion of pedestrians random or does it follow a specific pattern? How can we characterize it? 2) What is the impact of congestion on the mentioned observables? 3) Do familiarity with the place, the attractiveness of shops and signs found along the corridors affect pedestrian motion behaviour and how? What are the other factors that cause deviations from a straight line motion? Programming skills and knowledge of statistical mathematics are required.

2012-2013

Mobility learning from smartphone WIFI data, Amélie Buisson (Civil Engineering)

Supervision: Jingmin Chen, Evanthia Kazagli, Marija Nikolic
Smartphone is a powerful and convenient platform for collecting location data for mobility behavior research. Most of the research relies on GPS to get accurate location, or GSM to get massively available but imprecise location. This project investigates the feasibility of using WIFI data for mobility behavior research. The dataset is collected from 200 smartphones over 2 years. The data collection application (EPFLScope) records all nearby WIFI access points (AP) every 3-5 minutes. Some of the WIFI access points are associated with location information. Therefore, it is possible to identify the location of the smartphone according to the nearby WIFI AP. With this location information, we can further understand spatial and temporal mobility patterns.

Movement patterns of pedestrians on platforms prior to/after train departures/arrivals in Gare de Lausanne: Exploitation of pedestrian tracking data, Isabel Tovar

Supervision: Flurin Hänseler, Marija Nikolic
In order to better understand how people access and leave a train station by means of trains, the arrival and departure pattern of pedestrians on platform is of interest. In particular, the embarkation/disembarkation behavior of train passengers is an important factor for congestion in pedestrian facilities. The departure pattern of pedestrians awaiting to board a train is expected to follow a beta distribution. In contrast to that, arriving passengers usually enter a train station as a very dense crowd, causing a theoretical inflow that exceeds the capacity of pedestrian facilities. This saturation effect needs to be taken into account when modeling arrival patterns. The goal of this work is to mathematically describe the arrival and departure patterns caused by single trains as well as for platforms on which multiple trains follow each other in close succession. Case studies for RER, RE and ICE/EC trains will be considered in order to better understand the influence of train size and type on these patterns.

Pedestrian flow simulation in Lausanne train station, Nicolas de Lamberterie

Supervision: Bilal Farooq, Marija Nikolic
This project is about modelling, simulating, and analyzing the future expansion scenarios, in the context of pedestrian flows within Lausanne Gare (train station). We have already developed the modelling and simulation test-bed in a pedestrian flow simulator, called VisWalk. Here we would like to use more detailed data for existing and future demand in our models and analysis. A considerable amount of time will be spent to perform the calibration of various parameters using aggregate level speed and density related data. If time permits, we would also be interested in doing small infrastructure changes, specifically tapering of the intersections between PIs and ramps in order to evaluate their effects of the pedestrian flows. Ideal student should have some experience in using CAD software (AutoCAD, Microstation); should have some knowledge of databases; and be able to do basic programming. The student working on the project will have a great and unique opportunity to work directly with SBB CFF FFS, a major transportation software company called PTV AG, and a rapidly growing startup from EPFL called VisioSafe.

Tomás Robenek

Tomás Robenek has been a member of the laboratory from Jan 01, 2012 to Mar 16, 2017

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Tomás Robenek.

Journal articles

2018


@Article{RoShMaDeBi18,
  author = {Tom\'a\v{s} Robenek and Shadi {Sharif Azadeh} and Yousef Maknoon and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Train Timetable Design Under Elastic Passenger Demand},
  journal = {Transportation Research Part B: Methodological},
  year = {2018},
  volume = {111},
  pages = {19-38},
  DOI = {10.1016/j.trb.2018.03.002},
  note = {Accepted on Mar 01, 2018}}}

2017


@Article{RobeSharMaknBier17,
  author = {Tom\'a\v{s} Robenek and Shadi {Sharif Azadeh} and Yousef Maknoon and Michel Bierlaire},
  title = {Hybrid Cyclicity: Combining The Benefits Of Cyclic And Non-Cyclic Timetables},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2017},
  volume = {75},
  pages = {228-253},
  DOI = {10.1016/j.trc.2016.12.015},
  note = {Accepted on Dec 19, 2016}}}

2016

Robenek T., Maknoon Y., Sharif Azadeh S., Chen J., Bierlaire M. (2016). Passenger Centric Train Timetabling Problem. Transportation Research Part B: Methodological 89 :107-126


@Article{RobeMakAzaChenBier16,
  author = {Tom\'a\v{s} Robenek and Yousef Maknoon and Shadi {Sharif Azadeh} and {Jiang Hang} Chen and Michel Bierlaire},
  title = {Passenger Centric Train Timetabling Problem},
  journal = {Transportation Research Part B: Methodological},
  year = {2016},
  volume = {89},
  pages = {107-126},
  DOI = {10.1016/j.trb.2016.04.003},
  note = {Accepted on Apr 01, 2016}}}

2014

Robenek T., Umang N., Bierlaire M., Ropke S. (2014). A Branch-and-Price Algorithm to Solve the Integrated Berth Allocation and Yard Assignment Problem in Bulk Ports. European Journal of Operational Research 235 (2):399-411

In this research, two crucial optimization problems of berth allocation and yard assignment in the context of bulk ports are studied. We discuss how these problems are interrelated and can be combined and solved as a single large scale optimization problem. More importantly we highlight the differences in operations between bulk ports and container terminals which high- lights the need to devise specific solutions for bulk ports. The objective is to minimize the total service time of vessels berthing at the port. We propose an exact solution algorithm based on a branch and price framework to solve the integrated problem. In the proposed model, the mas- ter problem is formulated as a set-partitioning problem, and subproblems to identify columns with negative reduced costs are solved using mixed integer programming. To obtain sub-optimal solutions quickly, a metaheuristic approach based on critical-shaking neighborhood search is pre- sented. The proposed algorithms are tested and validated through numerical experiments based on instances inspired from real bulk port data. The results indicate that the algorithms can be successfully used to solve instances containing up to 40 vessels within reasonable computational time.
```
@Article{RobeUmanBierRopk13,
  author = {Tom\'a\v{s} Robenek and Nitish Umang and Michel Bierlaire and Stefan Ropke},
  title = {A Branch-and-Price Algorithm to Solve the Integrated Berth Allocation and Yard Assignment Problem in Bulk Ports},
  journal = {European Journal of Operational Research},
  year = {2014},
  volume = {235},
  number = {2},
  pages = {399-411},
  DOI = {10.1016/j.ejor.2013.08.015},
  note = {Accepted on Aug 12, 2013}}}
```

Technical reports

2016

Robenek T., Sharif Azadeh S., Maknoon Y., de Lapparent M., Bierlaire M. (2016). Train Timetable Design Under Elastic Passenger Demand. Report TRANSP-OR 160923


@TechReport{RobAzaMakLapBier16,
  author = {Tom\'a\v{s} Robenek and Shadi {Sharif Azadeh} and Yousef Maknoon and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Train Timetable Design Under Elastic Passenger Demand},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2016},
  type = {Technical Report},
  number = {TRANSP-OR 160923},
  address = {Lausanne, Switzerland}}}

Robenek T., Sharif Azadeh S., Maknoon Y., Bierlaire M. (2016). Hybrid Cyclicity: Combining The Benefits Of Cyclic And Non-Cyclic Timetables. Report TRANSP-OR 160510


@TechReport{RobeAzaMakBier16,
  author = {Tom\'a\v{s} Robenek and Shadi {Sharif Azadeh} and Yousef Maknoon and Michel Bierlaire},
  title = {Hybrid Cyclicity: Combining The Benefits Of Cyclic And Non-Cyclic Timetables},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2016},
  type = {Technical Report},
  number = {TRANSP-OR 160510},
  address = {Lausanne, Switzerland}}}

2015

Robenek T., Maknoon Y., Sharif Azadeh S., Chen J., Bierlaire M. (2015). Passenger Centric Train Timetabling Problem. Report TRANSP-OR 150917


@TechReport{RobMakAzaChenBier15,
  author = {Tom\'a\v{s} Robenek and Yousef Maknoon and Shadi {Sharif Azadeh} and {Jiang Hang} Chen and Michel Bierlaire},
  title = {Passenger Centric Train Timetabling Problem},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2015},
  type = {Technical Report},
  number = {TRANSP-OR 150917},
  address = {Lausanne, Switzerland}}}

2012

Robenek T., Umang N., Bierlaire M., Ropke S. (2012). A branch-and-price algorithm to solve the integrated berth allocation and yard assignment problem in bulk ports. Report TRANSP-OR 121030


@TechReport{TomNitBierStef12,
  author = {Tom\'a\v{s} Robenek and Nitish Umang and Michel Bierlaire and Stefan Ropke},
  title = {A branch-and-price algorithm to solve the integrated berth allocation and yard assignment problem in bulk ports},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2012},
  type = {Technical Report},
  number = {TRANSP-OR 121030},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2015


@InProceedings{Robenek_CASPT,
  author = {Tom\'a\v{s} Robenek and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {Evaluating the Quality of Railway Timetables from Passenger Point of View},
  booktime = {Proceedings of the 13th Conference on Advanced Systems in Public Transport (CASPT2015), July 19 - 23},
  year = {2015},
  address = {Rotterdam, The Netherlands}}}


@InProceedings{Robenek_RailTokyo_2015,
  author = {Tom\'a\v{s} Robenek and Shadi {Sharif Azadeh} and {Jiang Hang} Chen and Michel Bierlaire and Yousef Maknoon},
  title = {The Ideal Train Timetabling Problem},
  booktime = {Proceedings of the 6th International Conference on Railway Operations Modelling and Analysis (RailTokyo2015), March 23 {\textendash} 26},
  year = {2015},
  address = {Tokyo, Japan}}}

Robenek T., Maknoon Y., Bierlaire M. (2015) Railway Passenger Service Timetable Design. Proceedings of the 15th Swiss Transportation Research Conference (STRC), 15 -17 April, Ascona, Switzerland


@InProceedings{Robenek_STRC2015,
  author = {Tom\'a\v{s} Robenek and Yousef Maknoon and Michel Bierlaire},
  title = {Railway Passenger Service Timetable Design},
  booktime = {Proceedings of the 15th Swiss Transportation Research Conference (STRC), 15 -17 April},
  year = {2015},
  address = {Ascona, Switzerland}}}

2014

Robenek T., Chen J., Bierlaire M. (2014) The Ideal Train Timetabling Problem. Proceedings of the 14th Swiss Transportation Research Conference (STRC), 14 - 16 May, Ascona, Switzerland


@InProceedings{Robenek_STRC2014,
  author = {Tom\'a\v{s} Robenek and {Jiang Hang} Chen and Michel Bierlaire},
  title = {The Ideal Train Timetabling Problem},
  booktime = {Proceedings of the 14th Swiss Transportation Research Conference (STRC), 14 - 16 May},
  year = {2014},
  address = {Ascona, Switzerland}}}

2013


@InProceedings{ChenAtasRobeBierThemSTRC2013,
  author = {Jingmin Chen and Bilge Atasoy and Tom\'a\v{s} Robenek and Michel Bierlaire and Micha\"el Th\'emans},
  title = {Planning of feeding station installment for electric urban public mass-transportation system},
  booktime = {Proceedings of the 13th Swiss Transportation Research Conference (STRC), 24-26 April},
  year = {2013},
  address = {Ascona, Switzerland}}}


@InProceedings{Robenek_STRC2013,
  author = {Tom\'a\v{s} Robenek and {Jiang Hang} Chen and Michel Bierlaire},
  title = {Exploratory Analysis of Demand Interaction in the Planning of Passenger Railway Service},
  booktime = {Proceedings of the 13th Swiss Transportation Research Conference (STRC), 24-26 April},
  year = {2013},
  address = {Ascona, Switzerland}}}

2012

Robenek T., Umang N., Bierlaire M. (2012) Integrated Berth Allocation and Yard Assignment in Bulk Ports using Column Generation. Proceedings of the 12th Swiss Transport Research Conference (STRC), May 2-4, Monte Verita / Ascona, Switzerland


@InProceedings{TomasNitishBierlaire_STRC2012,
  author = {Tom\'a\v{s} Robenek and Nitish Umang and Michel Bierlaire},
  title = {Integrated Berth Allocation and Yard Assignment in Bulk Ports using Column Generation},
  booktime = {Proceedings of the 12th Swiss Transport Research Conference (STRC), May 2-4},
  year = {2012},
  address = {Monte Verita / Ascona, Switzerland}}}

Talks

2017

Robenek T. Behaviorally driven train timetable design March 02, 2017. Invited seminar, Erasmus University Rotterdam, Rotterdam, The Netherlands.


@Misc{Rott2017-3,
  author = {Tom\'a\v{s} Robenek},
  title = {Behaviorally driven train timetable design},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Rott2017-3.pdf}},
  year = {2017},
  note = {Presented at Invited seminar, Erasmus University Rotterdam, Rotterdam, The Netherlands}}}

2016

Robenek T., Sharif Azadeh S., Bierlaire M. Hybrid Cyclicity: Combining The Benefits Of Cyclic And Non-Cyclic Timetables June 13, 2016. Ninth Triennial Symposium on Transportation Analysis (TRISTAN IX), Oranjestad, Aruba.


@Misc{Robenek_Tristan_2016,
  author = {Tom\'a\v{s} Robenek and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {Hybrid Cyclicity: Combining The Benefits Of Cyclic And Non-Cyclic Timetables},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Robenek_Tristan_2016.pdf}},
  year = {2016},
  note = {Presented at Ninth Triennial Symposium on Transportation Analysis (TRISTAN IX), Oranjestad, Aruba}}}

Robenek T., Maknoon Y., Sharif Azadeh S., Bierlaire M. Hybrid Cyclicity: Combining The Benefits Of Cyclic And Non-Cyclic Timetables May 19, 2016. 16th Swiss Transportation Research Conference, Ascona, Switzerland.


@Misc{Robenek_STRC_2016,
  author = {Tom\'a\v{s} Robenek and Yousef Maknoon and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {Hybrid Cyclicity: Combining The Benefits Of Cyclic And Non-Cyclic Timetables},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Robenek_STRC_2016.pdf}},
  year = {2016},
  note = {Presented at 16th Swiss Transportation Research Conference, Ascona, Switzerland}}}

2015

Robenek T., Maknoon Y., Sharif Azadeh S., Bierlaire M. Evaluating the Quality of Railway Timetables September 10, 2015. 4th Symposium of the European Association for Research in Transportation, Kongens Lyngby, Denmark.


@Misc{Robenek_hEART_2015,
  author = {Tom\'a\v{s} Robenek and Yousef Maknoon and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {Evaluating the Quality of Railway Timetables},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Robenek_hEART_2015.pdf}},
  year = {2015},
  note = {Presented at 4th Symposium of the European Association for Research in Transportation, Kongens Lyngby, Denmark}}}

Robenek T., Sharif Azadeh S., Bierlaire M. Evaluating the Quality of Railway Timetables July 22, 2015. 13th Conference on Advanced Systems in Public Transport, Rotterdam, The Netherlands.


@Misc{Robenek_CASPT,
  author = {Tom\'a\v{s} Robenek and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {Evaluating the Quality of Railway Timetables},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Robenek_CASPT.pdf}},
  year = {2015},
  note = {Presented at 13th Conference on Advanced Systems in Public Transport, Rotterdam, The Netherlands}}}

Robenek T., Maknoon Y., Bierlaire M. Railway Passenger Service Timetable Design April 17, 2015. 15th Swiss Transportation Research Conference, Ascona, Switzerland.


@Misc{Robenek_STRC_2015,
  author = {Tom\'a\v{s} Robenek and Yousef Maknoon and Michel Bierlaire},
  title = {Railway Passenger Service Timetable Design},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Robenek_STRC_2015.pdf}},
  year = {2015},
  note = {Presented at 15th Swiss Transportation Research Conference, Ascona, Switzerland}}}

Robenek T., Sharif Azadeh S., Maknoon Y., Chen J., Bierlaire M. The Ideal Train Timetabling Problem March 25, 2015. The 6th International Conference on Railway Operations Modelling and Analysis (RailTokyo2015), Tokyo, Japan.


@Misc{Robenek_Rail2015,
  author = {Tom\'a\v{s} Robenek and Shadi {Sharif Azadeh} and Yousef Maknoon and {Jiang Hang} Chen and Michel Bierlaire},
  title = {The Ideal Train Timetabling Problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Robenek_Rail2015.pdf}},
  year = {2015},
  note = {Presented at The 6th International Conference on Railway Operations Modelling and Analysis (RailTokyo2015), Tokyo, Japan}}}

Robenek T. Train Timetabling - New Approach January 13, 2015. CUSO Doctoral Programme in Operations Research – Spring Seminar, Zinal, Switzerland.


@Misc{Robenek_Zinal_2015,
  author = {Tom\'a\v{s} Robenek},
  title = {Train Timetabling - New Approach},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Robenek_Zinal_2015.pdf}},
  year = {2015},
  note = {Presented at CUSO Doctoral Programme in Operations Research \– Spring Seminar, Zinal, Switzerland}}}

2014

Robenek T., Chen J., Bierlaire M. The Ideal Train Timetabling Problem September 12, 2014. 3rd Symposium of the European Association for Research in Transportation, Leeds, United Kingdom.


@Misc{Robenek_hEART_2014,
  author = {Tom\'a\v{s} Robenek and {Jiang Hang} Chen and Michel Bierlaire},
  title = {The Ideal Train Timetabling Problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Robenek_hEART_2014.pdf}},
  year = {2014},
  note = {Presented at 3rd Symposium of the European Association for Research in Transportation, Leeds, United Kingdom}}}

Robenek T., Chen J., Bierlaire M. The Ideal Train Timetabling Problem July 17, 2014. 20th Conference of the International Federation of Operational Research Societies, Barcelona, Spain.


@Misc{ROBENEK_IFORS_2014,
  author = {Tom\'a\v{s} Robenek and {Jiang Hang} Chen and Michel Bierlaire},
  title = {The Ideal Train Timetabling Problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/ROBENEK_IFORS_2014.pdf}},
  year = {2014},
  note = {Presented at 20th Conference of the International Federation of Operational Research Societies, Barcelona, Spain}}}

Robenek T., Chen J., Bierlaire M. The Ideal Train Timetabling Problem May 15, 2014. 14th Swiss Transportation Research Conference, Ascona, Switzerland.


@Misc{Robenek_STRC_2014,
  author = {Tom\'a\v{s} Robenek and {Jiang Hang} Chen and Michel Bierlaire},
  title = {The Ideal Train Timetabling Problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Robenek_STRC_2014.pdf}},
  year = {2014},
  note = {Presented at 14th Swiss Transportation Research Conference, Ascona, Switzerland}}}

Robenek T., Chen J., Bierlaire M. The Ideal Train Timetabling Problem May 08, 2014. 12th Swiss Operations Research Days, Lausanne, Switzerland.


@Misc{Robenek_ORDays_2014,
  author = {Tom\'a\v{s} Robenek and {Jiang Hang} Chen and Michel Bierlaire},
  title = {The Ideal Train Timetabling Problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Robenek_ORDays_2014.pdf}},
  year = {2014},
  note = {Presented at 12th Swiss Operations Research Days, Lausanne, Switzerland}}}

2013

Robenek T., Chen J., Bierlaire M. Demand Based Timetabling of Passenger Railway Service September 05, 2013. 2nd Symposium of the European Association for Research in Transportation, Stockholm, Sweden.


@Misc{Robenek_hEART_2013,
  author = {Tom\'a\v{s} Robenek and {Jiang Hang} Chen and Michel Bierlaire},
  title = {Demand Based Timetabling of Passenger Railway Service},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Robenek_hEART_2013.pdf}},
  year = {2013},
  note = {Presented at 2nd Symposium of the European Association for Research in Transportation, Stockholm, Sweden}}}

Robenek T., Chen J., Atasoy B., Bierlaire M. Tactical Design of Electric Bus Network Using Optimization Tools July 01, 2013. 26th European Conference on Operational Research, Rome, Italy.


@Misc{Robenek_EURO_2013,
  author = {Tom\'a\v{s} Robenek and {Jiang Hang} Chen and Bilge Atasoy and Michel Bierlaire},
  title = {Tactical Design of Electric Bus Network Using Optimization Tools},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Robenek_EURO_2013.pdf}},
  year = {2013},
  note = {Presented at 26th European Conference on Operational Research, Rome, Italy}}}

Robenek T., Chen J., Bierlaire M. Exploratory analysis of demand interaction in the planning of passenger railway service April 24, 2013. Swiss Transport Research Conference (STRC), Ascona, Switzerland.


@Misc{Robenek_STRC2013,
  author = {Tom\'a\v{s} Robenek and {Jiang Hang} Chen and Michel Bierlaire},
  title = {Exploratory analysis of demand interaction in the planning of passenger railway service},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Robenek_STRC2013.pdf}},
  year = {2013},
  note = {Presented at Swiss Transport Research Conference (STRC), Ascona, Switzerland}}}

2012

Robenek T., Umang N., Bierlaire M., Ropke S. A branch-and-price algorithm to solve the integrated berth allocation and yard assignment problem in bulk ports November 21, 2012. First Workshop on Large Scale Optimization, , Vevey, Switzerland.


@Misc{ROBENEKT_LWS_2012,
  author = {Tom\'a\v{s} Robenek and Nitish Umang and Michel Bierlaire and Stefan Ropke},
  title = {A branch-and-price algorithm to solve the integrated berth allocation and yard assignment problem in bulk ports},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/ROBENEKT_LWS_2012.pdf}},
  year = {2012},
  note = {Presented at First Workshop on Large Scale Optimization, , Vevey, Switzerland}}}

Robenek T., Umang N., Bierlaire M., Ropke S. Integrated berth allocation and yard assignment problem using column generation May 02, 2012. Swiss Transport Research Conference (STRC), Ascona, Switzerland.


@Misc{Robenek_STRC2012,
  author = {Tom\'a\v{s} Robenek and Nitish Umang and Michel Bierlaire and Stefan Ropke},
  title = {Integrated berth allocation and yard assignment problem using column generation},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Robenek_STRC2012.pdf}},
  year = {2012},
  note = {Presented at Swiss Transport Research Conference (STRC), Ascona, Switzerland}}}

Awards

2013

Tomás Robenek. Best Master Thesis 2012, Swiss Operations Research Society.
Every year, the Swiss Operations Research Society proposes a prize of 1000 CHF to reward an outstanding theoretical or applied Diploma Thesis in the field of Operations Research. Tomas' thesis, entitled "Integrated Berth Allocation and Yard Assignment Problem in Bulk Ports Using Column Generation" won the prize for 2013. It was carried out at the Transport and Mobility Laboratory, EPFL as his Erasmus leave from the Transport Department at the Technical University of Denmark (DTU), and sponsored by the Zeno-Karl Schindler Foundation. The research was supervised by Nitish Umang (EPFL), prof. Michel Bierlaire (EPFL) and prof. Stefan Ropke (DTU)..

Reviewing

Research projects

2012

myTOSA: catenary-free 100% electric urban public mass-transportation system

myTOSA is a simulation tool for the dimensioning, commercial promotion and case study set-up for ABB's revolutionary "catenary-free" 100% electric urban public mass-transportation system TOSA 2013. The objective of the project is to provide a simulation tool that will allow ABB to perform the proper dimensioning, promote the commercial idea and allow for specific study cases for the implementation of ABB's new public electric transportation concept, namely TOSA 2013.
- Mar 01, 2012 - Sep 30, 2013
- Sponsor: Commission pour la technologie et de l'innovation, Office Fédéral de la formation professionnelle et de la technologie.
- Principal investigator: Michel Bierlaire
- Project manager: Jianghang Chen
- Collaborators: Bilge Atasoy, Tom�s Robenek

EPFL courses

Spring 2017

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Virginie Lurkin, Mor Kaspi
- Teaching assistants: Tom�s Robenek, Stefan Binder, Iliya Markov, Meritxell Pacheco
- Webpage: http://moodle.epfl.ch/enrol/index.php?id=15132

Spring 2016

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Matthieu de Lapparent, Shadi Sharif Azadeh
- Teaching assistants: Anna Fernandez Antolin, Tom�s Robenek, Yousef Maknoon, Evanthia Kazagli
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2016/index.php

Spring 2015

Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Riccardo Scarinci, Yousef Maknoon
- Teaching assistants: Tom�s Robenek, Marija Nikolic
- Webpage: http://transp-or.epfl.ch/courses/OptSim2015/

Spring 2014

Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Riccardo Scarinci, Jianghang Chen
- Teaching assistants: Tom�s Robenek, Marija Nikolic
- Webpage: http://transp-or.epfl.ch/courses/OptSim2014/

Spring 2013

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Michel Bierlaire, Jianghang Chen
- Teaching assistants: Evanthia Kazagli, Tom�s Robenek
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2013
G�om�trie.
- Level: Bachelor
- Section: Civil Engineering
- Lecturer: None None
- Teaching assistant: Tom�s Robenek

Master theses

2014-2015

Optimization of arrivals and departure ow management at congested airports, Guilhem Pujol (None)
- Supervision: Shadi Sharif Azadeh, Michel Bierlaire, Tomás Robenek
- External expert:

2014

Optimisation des tournées de ramassage des employés de l'aéroport de Genève, Isabel Tovar (Civil Engineering)
- Supervision: Tomás Robenek, Stefan Binder, Michel Bierlaire
- External expert: Philippe Quaglia, Aéroport international de Genève

2012-2013

Optimization of an electric bus network, Frédéric Pythoud (Mathematics)
- Supervision: Bilge Atasoy, Tomás Robenek, Michel Bierlaire
- External expert: Olivier Augé, ABB

Semester projects

2016

Price of anarchy in public transit networks, Marc-Edouard Schultheiss (Civil Engineering)

Supervision: Stefan Binder, Tomás Robenek, Michel Bierlaire

Demand based rolling stock allocation, Salma Derouiche (Computer science)

Supervision: Yousef Maknoon, Tomás Robenek, Michel Bierlaire
Providing a high level of service for the passengers is one of the most important requirements of passenger railway company. In practice during rush hours passengers cannot be transported according to usual service standards because of a shortage of the rolling stock capacity. The purpose of this pre-project is to determine an efficient method to allocate the rolling stock taking into account passengers demand.

Analysis of External Effects on Cyclicity in Passenger Railway Service, Lucia Montero (Computational science and engineering)

Supervision: Tomás Robenek, Shadi Sharif Azadeh
In the passenger railway service, cyclicity is in general perceived as a beneficial attribute. The main allegation being memorability of such timetables by the passengers. However no quantitative proof has been presented to support such statement. In this project, the student will become familiar with a passenger satisfaction (that is based on utility theory) and further extend this concept by the attribute expressing the perception of the cyclicity. Student will then solve an optimization problem maximizing the passenger satisfaction and/or train operating company's profit. The benchmark will be done on a small part of Swiss network, followed by a test on a full scale network of Israeli Railways. Basic knowledge of programming is required.

2014

Train Management in SNCF Application, Cao Huu-Ân (Computational science and engineering)

Supervision: Tomás Robenek, Stefan Binder, Michel Bierlaire

2013-2014

Optimisation des tournées de ramassage des employés de l'aéroport de Genève (Pre-Project), Isabel Tovar (Civil Engineering)

Supervision: Tomás Robenek, Stefan Binder, Michel Bierlaire

2013

Optimisation des transports scolaires à Grandson II, Franka Tholen (Mathematics)

Supervision: Michel Bierlaire, Tomás Robenek, Bilge Atasoy
Analyser les probl�matiques, actuelles et futures, et proposer des solutions d'am�lioration d�coulant de l'organisation et de la gestion de l'ensemble des transports n�cessaires � la bonne marche du groupement et de l'arrondissement scolaire de Grandson (18 communes, 1'350 �l�ves, 70 classes, 12 sites scolaires). Ces probl�matiques r�sultent principalement d'une augmentation significative des co�ts li�s � l'introduction de la communaut� tarifaire vaudoise (Mobilis), de contraintes li�es � l'entr�e en vigueur d'HarmoS, des projets de constructions de l'association intercommunal, de l'�volution du r�seau r�gional des transports voire �galement des synergies � d�velopper avec le milieu parascolaire.

Optimization of Paris' Metro System, Thomas Cibils (Mathematics)

Supervision: Tomás Robenek, Jianghang Chen, Michel Bierlaire
The Metrolab (a joint venture between RATP (R�gie Autonome des Transports Parisiens) and Alstom) would like to conduct analysis of their current metro system in terms of metro schedules and pedestrian congestion in the stations. The aim of this project is to use optimization techniques to design more flexible dynamic timetables and partially to handle the pedestrian congestion in the stations. This project will be offered only for spring semester 2013.

2012-2013

Optimisation des transports scolaires à Grandson I, Clement Massart (Mathematics)

Supervision: Tomás Robenek, Bilge Atasoy, Michel Bierlaire
Analyser les probl�matiques, actuelles et futures, et proposer des solutions d'am�lioration d�coulant de l'organisation et de la gestion de l'ensemble des transports n�cessaires � la bonne marche du groupement et de l'arrondissement scolaire de Grandson (18 communes, 1'350 �l�ves, 70 classes, 12 sites scolaires). Ces probl�matiques r�sultent principalement d'une augmentation significative des co�ts li�s � l'introduction de la communaut� tarifaire vaudoise (Mobilis), de contraintes li�es � l'entr�e en vigueur d'HarmoS, des projets de constructions de l'association intercommunal, de l'�volution du r�seau r�gional des transports voire �galement des synergies � d�velopper avec le milieu parascolaire.

Flurin Hänseler

Flurin Hänseler has been a member of the laboratory from Nov 01, 2011 to Apr 15, 2016

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Flurin Hänseler.

Journal articles

2017


@Article{HaenLamBierLedeNiko16,
  author = {Flurin H\"anseler and William Lam and Michel Bierlaire and Gael Lederrey and Marija Nikolic},
  title = {A dynamic network loading model for anisotropic and congested pedestrian flows},
  journal = {Transportation Research Part B: Methodological},
  year = {2017},
  volume = {95},
  pages = {149-168},
  DOI = {10.1016/j.trb.2016.10.017},
  note = {Accepted on Oct 31, 2016}}}

Hänseler F., Molyneaux N., Bierlaire M. (2017). Estimation of pedestrian origin-destination demand in train stations. Transportation Science 51 (3):981-997


@Article{HaenMolyBier16,
  author = {Flurin H\"anseler and Nicholas Molyneaux and Michel Bierlaire},
  title = {Estimation of pedestrian origin-destination demand in train stations},
  journal = {Transportation Science},
  year = {2017},
  volume = {51},
  number = {3},
  pages = {981-997},
  DOI = {10.1287/trsc.2016.0723},
  note = {Accepted on Jul 07, 2016}}}

2016


@Article{HaenBierScar16,
  author = {Flurin H\"anseler and Michel Bierlaire and Riccardo Scarinci},
  title = {Assessing the usage and level-of-service of pedestrian facilities in train stations: A Swiss case study},
  journal = {Transportation Research Part A: Policy and Practice},
  year = {2016},
  volume = {89},
  pages = {106-123},
  DOI = {10.1016/j.tra.2016.05.010},
  note = {Accepted on May 16, 2016}}}

2014

Hänseler F., Bierlaire M., Farooq B., Mühlematter T. (2014). A macroscopic loading model for time-varying pedestrian flows in public walking areas. Transportation Research Part B: Methodological 69 :60 -- 80

A macroscopic loading model applicable to time-dependent and congested pedestrian flows in public walking areas is proposed. Building on the continuum theory of pedestrian flows and the cell transmission model for car traffic, an isotropic framework is developed that can describe the simultaneous and potentially conflicting propagation of multiple pedestrian groups. The model is formulated at the aggregate level and thus computationally cheap, which is advantageous for studying large-scale problems. A detailed analysis of several basic flow patterns including counter- and cross flows, as well as two generic scenarios involving a corner- and a bottleneck flow is carried out. Various behavioral patterns ranging from disciplined queueing to impatient jostling can be realistically reproduced. Following a systematic model calibration, two case studies involving a Swiss railway station and a Dutch bottleneck flow experiment are presented. A comparison with the social force model and pedestrian tracking data shows a good performance of the proposed model with respect to predictions of travel time and density.
```
@Article{Haens_Bier_Far_Muhl_2014,
  author = {Flurin H\"anseler and Michel Bierlaire and Bilal Farooq and Thomas M\"uhlematter},
  title = {A macroscopic loading model for time-varying pedestrian flows in public walking areas},
  journal = {Transportation Research Part B: Methodological},
  year = {2014},
  volume = {69},
  pages = {60 -- 80},
  DOI = {10.1016/j.trb.2014.08.003},
  note = {Accepted on Aug 08, 2014}}}
```

Technical reports

2015

Hänseler F., Lam W., Bierlaire M., Lederrey G., Nikolic M. (2015). A dynamic network loading model for anisotropic and congested pedestrian flows. Report TRANSP-OR 151026


@TechReport{HaLaBiLeNi_2015,
  author = {Flurin H\"anseler and William Lam and Michel Bierlaire and Gael Lederrey and Marija Nikolic},
  title = {A dynamic network loading model for anisotropic and congested pedestrian flows},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2015},
  type = {Technical Report},
  number = {TRANSP-OR 151026},
  address = {Lausanne, Switzerland}}}

Hänseler F., Bierlaire M., Scarinci R. (2015). Assessing the usage and level-of-service of pedestrian facilities in train stations: A Swiss case study. Report TRANSP-OR 151008


@TechReport{HaBiSc_2015,
  author = {Flurin H\"anseler and Michel Bierlaire and Riccardo Scarinci},
  title = {Assessing the usage and level-of-service of pedestrian facilities in train stations: A Swiss case study},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2015},
  type = {Technical Report},
  number = {TRANSP-OR 151008},
  address = {Lausanne, Switzerland}}}

Hänseler F., Molyneaux N., Bierlaire M. (2015). Estimation of pedestrian origin-destination demand in train stations. Report TRANSP-OR 150703


@TechReport{HaMoBi_PedDemEstRevised2015,
  author = {Flurin H\"anseler and Nicholas Molyneaux and Michel Bierlaire},
  title = {Estimation of pedestrian origin-destination demand in train stations},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2015},
  type = {Technical Report},
  number = {TRANSP-OR 150703},
  address = {Lausanne, Switzerland}}}

Hänseler F., Molyneaux N., Bierlaire M. (2015). Schedule-based estimation of pedestrian origin-destination demand in railway stations. Report TRANSP-OR 150108


@TechReport{HaMoBi_PedDemEst2015,
  author = {Flurin H\"anseler and Nicholas Molyneaux and Michel Bierlaire},
  title = {Schedule-based estimation of pedestrian origin-destination demand in railway stations},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2015},
  type = {Technical Report},
  number = {TRANSP-OR 150108},
  address = {Lausanne, Switzerland}}}

2013

Hänseler F., Bierlaire M., Farooq B., Mühlematter T. (2013). An aggregate model for transient and multi-directional pedestrian flows in public walking areas. Report TRANSP-OR 131219


@TechReport{PedCTM_2013,
  author = {Flurin H\"anseler and Michel Bierlaire and Bilal Farooq and Thomas M\"uhlematter},
  title = {An aggregate model for transient and multi-directional pedestrian flows in public walking areas},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2013},
  type = {Technical Report},
  number = {TRANSP-OR 131219},
  address = {Lausanne, Switzerland}}}

Hänseler F., Molyneaux N., Thémans M., Bierlaire M. (2013). Pedestrian strategies within railway stations: Analysis and modeling of pedestrian flows (PedFlux Mid-Term Report). Report TRANSP-OR 130920


@TechReport{PedFluxMidTerm,
  author = {Flurin H\"anseler and Nicholas Molyneaux and Micha\"el Th\'emans and Michel Bierlaire},
  title = {Pedestrian strategies within railway stations: Analysis and modeling of pedestrian flows (PedFlux Mid-Term Report)},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2013},
  type = {Technical Report},
  number = {TRANSP-OR 130920},
  address = {Lausanne, Switzerland}}}

2012


@TechReport{LEMAN2030,
  author = {Flurin H\"anseler and Sohrab Sahaleh and Bilal Farooq and Sonia Lavadinho and Micha\"el Th\'emans and Michel Bierlaire},
  title = {Final report on the modeling part of the ''Flux pietons Gare de Lausanne'' project within the framework of ''Leman 2030''},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2012},
  type = {Technical Report},
  number = {TRANSP-OR 120801},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2015


@InProceedings{Flurin_STRC_2015,
  author = {Flurin H\"anseler and Michel Bierlaire and Nicholas Molyneaux and Riccardo Scarinci and Micha\"el Th\'emans},
  title = {Modeling pedestrian flows in train stations: The example of Lausanne railway station},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), April 15-17},
  year = {2015},
  address = {Ascona, Switzerland}}}

2014


@InProceedings{Haens_STRC_2014,
  author = {Flurin H\"anseler and Nicholas Molyneaux and Michel Bierlaire and Amanda Stathopoulos},
  title = {Schedule-based estimation of pedestrian demand within a railway station},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), 14-16 May},
  year = {2014},
  address = {Ascona, Switzerland}}}


@InProceedings{MolHaeBie_STRC_2014,
  author = {Nicholas Molyneaux and Flurin H\"anseler and Michel Bierlaire},
  title = {Modelling of train-induced pedestrian flows in railway stations},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), 14-16 May},
  year = {2014},
  address = {Ascona, Switzerland}}}

2013


@InProceedings{Haens_STRC_2013,
  author = {Flurin H\"anseler and Bilal Farooq and Michel Bierlaire},
  title = {An aggregated dynamic flow model for pedestrian movement in railway stations},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), 24-26 April},
  year = {2013},
  address = {Ascona, Switzerland}}}

2012


@InProceedings{HaeFarBie_STRC_2012,
  author = {Flurin H\"anseler and Bilal Farooq and Michel Bierlaire},
  title = {Preliminary ideas for dynamic estimation of pedestrian origin-destination demand within train stations},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), 02.05.2012-04.05.2012},
  year = {2012},
  address = {Ascona, Switzerland}}}


@InProceedings{SahBie_STRC_2012,
  author = {Sohrab Sahaleh and Michel Bierlaire and Bilal Farooq and Antonin Danalet and Flurin H\"anseler},
  title = {Scenario Analysis of Pedestrian Flow in Public Spaces},
  booktime = {Proceedings of the 12th Swiss Transport Research Conference (STRC), May 2-4},
  year = {2012},
  address = {Monte Verit\`a, Ascona, Switzerland}}}

Talks

2016

Hänseler F. Modeling and estimation of pedestrian flows in train stations (Public defense) March 11, 2016. Public thesis defense, EPFL, Lausanne, Switzerland.


@Misc{Flurin_PubDef,
  author = {Flurin H\"anseler},
  title = { Modeling and estimation of pedestrian flows in train stations (Public defense)},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Flurin_PubDef.pdf}},
  year = {2016},
  note = {Presented at Public thesis defense, EPFL, Lausanne, Switzerland}}}

Hänseler F. Modeling and estimation of pedestrian flows in train stations (Private defense) February 11, 2016. Private thesis defense, EPFL, Lausanne, Switzerland.


@Misc{Flurin_PrivDef,
  author = {Flurin H\"anseler},
  title = { Modeling and estimation of pedestrian flows in train stations (Private defense)},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Flurin_PrivDef.pdf}},
  year = {2016},
  note = {Presented at Private thesis defense, EPFL, Lausanne, Switzerland}}}

2015

Hänseler F., Lam W., Bierlaire M., Lederrey G., Nikolic M. A dynamic network loading model for anisotropic and congested pedestrian flows October 30, 2015. TGF '15, TU Delft, Delft, The Netherlands.


@Misc{Flurin_TGF15,
  author = {Flurin H\"anseler and William Lam and Michel Bierlaire and Gael Lederrey and Marija Nikolic},
  title = { A dynamic network loading model for anisotropic and congested pedestrian flows},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Flurin_TGF15.pdf}},
  year = {2015},
  note = {Presented at TGF '15, TU Delft, Delft, The Netherlands}}}

Hänseler F., Lam W., Bierlaire M., Lederrey G., Nikolic M. A dynamic network loading model for anisotropic and congested pedestrian flows September 10, 2015. 4th Symposium of the European Association for Research in Transportation, Technical University of Denmark, Copenhagen, Denmark.


@Misc{Flurin_hEART_2015,
  author = {Flurin H\"anseler and William Lam and Michel Bierlaire and Gael Lederrey and Marija Nikolic},
  title = {A dynamic network loading model for anisotropic and congested pedestrian flows},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Flurin_hEART_2015.pdf}},
  year = {2015},
  note = {Presented at 4th Symposium of the European Association for Research in Transportation, Technical University of Denmark, Copenhagen, Denmark}}}

Hänseler F., Bierlaire M., Molyneaux N., Scarinci R., Thémans M. Modeling pedestrian flows in train stations: The example of Lausanne railway station April 16, 2015. Swiss Transport Research Conference, Ascona.


@Misc{Flurin-STRC-2015,
  author = {Flurin H\"anseler and Michel Bierlaire and Nicholas Molyneaux and Riccardo Scarinci and Micha\"el Th\'emans},
  title = {Modeling pedestrian flows in train stations: The example of Lausanne railway station},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Flurin-STRC-2015.pdf}},
  year = {2015},
  note = {Presented at Swiss Transport Research Conference, Ascona}}}

2014

Hänseler F., Lam W., Bierlaire M. A macroscopic loading model for dynamic, multi-directional and congested pedestrian flows December 16, 2014. Hong Kong Society for Research in Transportation (HKSTS) Annual Conference, The Hong Kong Polytechnic University, Hong Kong, China.


@Misc{Flurin_HKSTS_2014,
  author = {Flurin H\"anseler and William Lam and Michel Bierlaire},
  title = {A macroscopic loading model for dynamic, multi-directional and congested pedestrian flows},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Flurin_HKSTS_2014.pdf}},
  year = {2014},
  note = {Presented at Hong Kong Society for Research in Transportation (HKSTS) Annual Conference, The Hong Kong Polytechnic University, Hong Kong, China}}}

2013

Hänseler F. Analysis and modeling of pedestrian flows in railway stations December 04, 2013. Meeting SBB-Beirat Technologie, Methoden und Prozesse, SBB-CFF-FFS, Lausanne.


@Misc{Flurin-2013-Beirat,
  author = {Flurin H\"anseler},
  title = {Analysis and modeling of pedestrian flows in railway stations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Flurin-2013-Beirat.pdf}},
  year = {2013},
  note = {Presented at Meeting SBB-Beirat Technologie, Methoden und Prozesse, SBB-CFF-FFS, Lausanne}}}

Hänseler F., Farooq B., Bierlaire M. A mesoscopic dynamic flow model for pedestrian movement in railway stations September 06, 2013. 2nd Symposium of the European Association for Research in Transportation (hEART 2013), Stockholm.


@Misc{Flurin-2013-hEART,
  author = {Flurin H\"anseler and Bilal Farooq and Michel Bierlaire},
  title = {A mesoscopic dynamic flow model for pedestrian movement in railway stations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Flurin-2013-hEART.pdf}},
  year = {2013},
  note = {Presented at 2nd Symposium of the European Association for Research in Transportation (hEART 2013), Stockholm}}}

Hänseler F., Farooq B., Bierlaire M. A mesoscopic dynamic flow model for pedestrian movement in railway stations April 25, 2013. Swiss Transport Research Conference, A.


@Misc{Flurin-2013-STRC,
  author = {Flurin H\"anseler and Bilal Farooq and Michel Bierlaire},
  title = {A mesoscopic dynamic flow model for pedestrian movement in railway stations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Flurin-2013-STRC.pdf}},
  year = {2013},
  note = {Presented at Swiss Transport Research Conference, A}}}

2012

Hänseler F. Pedestrian flow modeling in train stations: �Le?man 2030 � Flux pie?tons Gare de Lausanne� and PedFlux October 29, 2012. SBB-I-AT-BZU-PFL Expert Meeting, Bern.


@Misc{Flurin-2013-SBB,
  author = {Flurin H\"anseler},
  title = {Pedestrian flow modeling in train stations: {\textquoteleft}Le?man 2030 {\textendash} Flux pie?tons Gare de Lausanne{\textquoteright} and PedFlux},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Flurin-2013-SBB.pdf}},
  year = {2012},
  note = {Presented at SBB-I-AT-BZU-PFL Expert Meeting, Bern}}}

Hänseler F., Farooq B., Bierlaire M. Preliminary ideas for dynamic estimation of pedestrian origin-destination demand within train stations May 03, 2012. Swiss Transport Research Conference, Ascona.


@Misc{Flurin-2012-STRC,
  author = {Flurin H\"anseler and Bilal Farooq and Michel Bierlaire},
  title = {Preliminary ideas for dynamic estimation of pedestrian origin-destination demand within train stations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Flurin-2012-STRC.pdf}},
  year = {2012},
  note = {Presented at Swiss Transport Research Conference, Ascona}}}

Research projects

2012

Pedflux: Pedestrian flow modeling in train stations

The aim of this collaborative research project between the Swiss Federal Railways (SBB-CFF-FFS) and EPFL's transportation center is to analyze, model and optimize pedestrian flows in train stations. In recent years, the growing number of passengers has led to difficulties related to pedestrian flows in major train stations. Congestion of pedestrian walkways is increasingly becoming a problem during peak hours, but also due to clustering of people caused by major events or the beginning or end of holiday season. When capacity limits for pedestrian facilities are reached, normal operation of train schedules can be significantly impaired. Since train stations are important nodes within the multimodal public transportation system, it is of major importance that they are operated as efficiently as possible. In addition to the increase in passenger numbers, train stations have been undergoing a profound transformation from simple transit nodes towards versatile hubs that provide interface to short and long-distance train connections, to other modes including private transport by foot, bike and car, as well as to the city offering public space for shopping, eating and alike. This transformation leads to a further increase in pedestrian numbers and additionally introduces new behavior patterns. A sound understanding of pedestrian flows within a train station can help improve overall level of service, customer experience and safety. The main focus of this study lies on the development of a methodology allowing to estimate pedestrian origin-destination (OD) demand within a train station. Specifically, train time table, customer survey data and flow observations from an exhaustive camera system are used as sources of information in this process. Subsequently, the modeling frame work is applied to several case studies in Switzerland.
- Apr 01, 2012 - Mar 31, 2015
- Sponsor: Swiss Federal Railways (SBB)
- Principal investigator: Michel Bierlaire
- Project managers: Micha�l Th�mans, Riccardo Scarinci
- Collaborator: Flurin H�nseler
Pedestrian dynamics: flows and behavior

This project aims at developing mathematical models of pedestrian dynamics, both at aggregate and disaggregate levels. Integrated and holistic mathematical models will handle the complexity of this unique transport mode and help us to answer open research questions. in the future, such foundations will also allow to create the tools society needs to better understand pedestrian dynamics.
- Apr 01, 2012 - Mar 31, 2015
- Sponsor: Swiss National Science Foundation
- Principal investigator: Michel Bierlaire
- Project managers: Bilal Farooq, Riccardo Scarinci
- Collaborators: Antonin Danalet, Flurin H�nseler, Marija Nikolic

2011

L�man 2030: Flux pi�tons Gare de Lausanne

In the framework of a 9-month collaboration with CFF, pedestrian flows in Lausanne train station are estimated and modeled. Specifically, an estimation methodology for pedestrian origin-destination demand is developed and applied to predict a demand scenario for 2030. By means of a pedestrian flow simulator, several infrastructure scenarios are quantitatively evaluated, the result of which helps CFF to design and dimension pedestrian underpasses of Gare de Lausanne for the future.
- Oct 01, 2011 - Jul 15, 2012
- Sponsor: Swiss Federal Railways (SBB)
- Principal investigator: Michel Bierlaire
- Project managers: Micha�l Th�mans, Bilal Farooq
- Collaborators: Flurin H�nseler, Antonin Danalet, Sohrab Sahaleh

EPFL courses

Spring 2015

Enjeux Mondiaux.
- Level: Bachelor
- Section: All sections
- Lecturer: Michel Bierlaire
- Teaching assistants: Stefan Binder, Flurin H�nseler
- Webpage: http://moodle.epfl.ch/course/view.php?id=13982

Spring 2012

Recherche op�rationnelle.
- Level: Bachelor
- Sections: Civil Engineering, Environmental Sciences and Engineering
- Lecturer: Michel Bierlaire
- Teaching assistant: Flurin H�nseler
- Webpage: http://transp-or.epfl.ch/courses/ro2012

Master theses

2014

A multi-class framework for a pedestrian cell transmission model accounting for population heterogeneity, Guy Cooper (Mathematics)
- Supervision: Flurin Hänseler, Marija Nikolic
- External expert:

Semester projects

2015-2016

Specification testing of fundamental diagrams for an anisotropic pedestrian network loading model, Joel Mateus Fonseca (Communication Systems)

Supervision: Flurin Hänseler, Marija Nikolic, Michel Bierlaire

Online estimation of pedestrian origin-destination demand in train stations using Kalman Filtering, Marc Solsona Bernet (Civil Engineering)

Supervision: Flurin Hänseler, Stefan Binder, Michel Bierlaire

2015

Development of a novel pedestrian walking model applicable to congested flows, Gael LEDERREY

Supervision: Flurin Hänseler, Marija Nikolic, Michel Bierlaire
We are in the process of developing a novel pedestrian walking model that can describe multi-directional and congested pedestrian flow. Given a certain demand, the model is supposed to predict travel times and density levels as accurately as possible. The basic idea thereby consists in discretizing walkable space into cells and links, and to compute for each link a speed based on an empirical density-speed relation. The goal of this project, which can be carried out as a Bachelor's, semester, or Master's thesis, is (i) to understand and improve the existing mathematical model, (ii) to accordingly update the computational model (written in Java), and (iii) to consider a real-world case study involving either a Swiss railway station, a Dutch bottleneck experiment or a pedestrian crossing in Hong Kong, China. In the long term, this model will be useful for real-time crowd monitoring and control, as well as for infrastructure dimensioning of e.g. a train station. Skills in object-oriented programming and a basic knowledge of statistical mathematics are required; knowledge of parallel computing is a plus. Semester: Spring 2015. If interested, please contact us at {flurin.haenseler,marija.nikolic}@epfl.ch. We're looking forward to hearing from you.

2014

A two-step approach for estimating pedestrian demand in a congested network, Eduard Rojas (Computer science)

Supervision: Flurin Hänseler, Antonin Danalet, Michel Bierlaire

2013-2014

Demand/supply coupling in pedestrian traffic estimation, Jérémy Rabasco (Computational science and engineering)

Supervision: Flurin Hänseler, Michel Bierlaire
The main purpose of this paper is to show a mathematical framework for solving the fixed-point arising in joint demand estimation / traffic assignment problems. As a case study. a congested corridor with known outflow is considered, for which the inflows is predicted using the developed framework. The model is based on a coupling between the travel demand and the network supply (the infrastructure available) in an analogous way as what is done in economics.

Schedule-based estimation of pedestrian travel demand within a quasi-uncongested railway station, Quentin Mazars-Simon (Communication Systems)

Supervision: Flurin Hänseler, Amanda Stathopoulos
In many railway stations, capacity limits are reached at peak hours and congestion in pedestrian facilities occurs. There is thus a general need to analyze and model pedestrian flows in train stations. In this process, estimating pedestrian origin-destination demand and, more precisely, route flows is a major challenge. The ultimate goal of this research project is to dynamically predict pedestrian travel demand within a train station based on train time table and train track assignment. To this end, a preliminary methodology has been developed. This framework needs to be refined and extended in many ways, which can be an interesting and suitable task for a semester or Master's thesis. Your thesis would be part of a comprehensive project employing pedestrian tracking, flow modeling and infrastructure optimization. All ideas and model concepts will be tested, parametrized and validated on a real case study.

2013

Movement patterns of pedestrians on platforms, Nicholas Alan Molyneaux

Supervision: Flurin Hänseler, Amanda Stathopoulos
To understand how people access a train station by means of trains, the arrival and departure pattern of pedestrians on platforms is of interest. In particular, the embarkation/disembarkation behavior of train passengers is an important factor for congestion in pedestrian facilities. The departure pattern of pedestrians awaiting to board a train has been shown to follow a beta distribution. In contrast to that, arriving passengers usually enter a train station as a very dense crowd, causing a theoretical inflow that exceeds the capacity of pedestrian facilities. The goal of this work is to mathematically describe the arrival and departure patterns caused by single trains as well as for platforms on which multiple trains follow each other in close succession. Very detailed pedestrian tracking data of platform 3/4 in Gare de Lausanne will form the basis of this analysis. Basic programming skills or a strong willingness to acquire such knowledge is desired.

Development of a novel pedestrian flow simulator, Thomas Mühlematter

Supervision: Flurin Hänseler, Bilal Farooq
Due to a general increase in travel demand, pedestrian flows in railway stations are gaining importance. Space is getting scarce, pedestrian density is reaching critical levels, and walking times are getting longer. To better understand these phenomena, we are currently developing a cell-based pedestrian flow simulator. Key features of this framework include its ability to i) realistically reproduce pedestrian density waves caused by arriving trains, ii) adequately describe multi-directional flows often present in public spaces, iii) consider differences in walking speeds among characteristic groups of pedestrians (such as passengers with luggage, handicapped people, travelers in a hurry, etc). To extend and implement this framework, basic programming skills or a strong willingness to acquire such knowledge is needed. Familiarity with fundamental fluid dynamics would be a plus. Extensive support and insight into ongoing research are provided.

2012-2013

Movement patterns of pedestrians on platforms prior to/after train departures/arrivals in Gare de Lausanne: Exploitation of pedestrian tracking data, Isabel Tovar

Supervision: Flurin Hänseler, Marija Nikolic
In order to better understand how people access and leave a train station by means of trains, the arrival and departure pattern of pedestrians on platform is of interest. In particular, the embarkation/disembarkation behavior of train passengers is an important factor for congestion in pedestrian facilities. The departure pattern of pedestrians awaiting to board a train is expected to follow a beta distribution. In contrast to that, arriving passengers usually enter a train station as a very dense crowd, causing a theoretical inflow that exceeds the capacity of pedestrian facilities. This saturation effect needs to be taken into account when modeling arrival patterns. The goal of this work is to mathematically describe the arrival and departure patterns caused by single trains as well as for platforms on which multiple trains follow each other in close succession. Case studies for RER, RE and ICE/EC trains will be considered in order to better understand the influence of train size and type on these patterns.

Dynamic estimation of pedestrian origin-destination within train stations: Exploitation of pedestrian tracking data and comparison to travel surveys, Maëlle Zimmermann (Mathematics)

Supervision: Flurin Hänseler, Antonin Danalet
OD demand will be estimated dynamically (i.e., as a function of time) based on observed pedestrian trajectories. Key in this process is a diligent choice of origins/destinations and their cordons, as well as a smart handling of �lost� pedestrians, i.e., people of which the algorithm looses track due to overcrowding or bad light conditions. Another challenge is finding a way to deal with multi-destination trips. For instance, a person entering a train station which goes to a ticket vending machine before boarding a train falls into this category. To help us tackle these issues, VisioSafe grants us access to some of their codes such that we can see how they have solved similar problems. Besides developing an OD estimation algorithm based on tracking data, visualization of OD demand is an important part of this thesis. Furthermore, it might be interesting to investigate how the estimated OD demand compares to previous estimates based on travel surveys (Anken et al., 2012) and pedestrian count data (ASE).

Nitish Umang

Nitish Umang has been a member of the laboratory from Sep 27, 2010 to Apr 30, 2014

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Nitish Umang.

Journal articles

2017

Umang N., Bierlaire M., Erera A. (2017). Real-time management of berth allocation with stochastic arrival and handling times. Journal of Scheduling 20 (1):67-83


@Article{UmanBierErer16,
  author = {Nitish Umang and Michel Bierlaire and Alan Erera},
  title = {Real-time management of berth allocation with stochastic arrival and handling times},
  journal = {Journal of Scheduling},
  year = {2017},
  volume = {20},
  number = {1},
  pages = {67-83},
  DOI = {10.1007/s10951-016-0480-2},
  note = {Accepted on Mar 23, 2016}}}

2014

Robenek T., Umang N., Bierlaire M., Ropke S. (2014). A Branch-and-Price Algorithm to Solve the Integrated Berth Allocation and Yard Assignment Problem in Bulk Ports. European Journal of Operational Research 235 (2):399-411

In this research, two crucial optimization problems of berth allocation and yard assignment in the context of bulk ports are studied. We discuss how these problems are interrelated and can be combined and solved as a single large scale optimization problem. More importantly we highlight the differences in operations between bulk ports and container terminals which high- lights the need to devise specific solutions for bulk ports. The objective is to minimize the total service time of vessels berthing at the port. We propose an exact solution algorithm based on a branch and price framework to solve the integrated problem. In the proposed model, the mas- ter problem is formulated as a set-partitioning problem, and subproblems to identify columns with negative reduced costs are solved using mixed integer programming. To obtain sub-optimal solutions quickly, a metaheuristic approach based on critical-shaking neighborhood search is pre- sented. The proposed algorithms are tested and validated through numerical experiments based on instances inspired from real bulk port data. The results indicate that the algorithms can be successfully used to solve instances containing up to 40 vessels within reasonable computational time.
```
@Article{RobeUmanBierRopk13,
  author = {Tom\'a\v{s} Robenek and Nitish Umang and Michel Bierlaire and Stefan Ropke},
  title = {A Branch-and-Price Algorithm to Solve the Integrated Berth Allocation and Yard Assignment Problem in Bulk Ports},
  journal = {European Journal of Operational Research},
  year = {2014},
  volume = {235},
  number = {2},
  pages = {399-411},
  DOI = {10.1016/j.ejor.2013.08.015},
  note = {Accepted on Aug 12, 2013}}}
```

2013

Umang N., Bierlaire M., Vacca I. (2013). Exact and Heuristic Methods to Solve the Berth Allocation Problem in Bulk Ports. Transportation Research Part E: Logistics and Transportation Review 54 :14-31

In this paper, we study the dynamic hybrid berth allocation problem in bulk ports with the objective to minimize the total service times of the vessels. We propose two exact methods based on mixed integer progra mming and generalized set partitionin g, and a heuristic method based on squeaky wheel optimization, explicitly considering the cargo type on the vessel. The formulations are compared through extensive numer ical experiments based on instances inspired from real bulk port data. The results indicate that the set partitioning method and the heuristic method can be used to obtain near-optimal solutions for even larger problem size.
```
@Article{UmanBierVac13,
  author = {Nitish Umang and Michel Bierlaire and Ilaria Vacca},
  title = {Exact and Heuristic Methods to Solve the Berth Allocation Problem in Bulk Ports},
  journal = {Transportation Research Part E: Logistics and Transportation Review},
  year = {2013},
  volume = {54},
  pages = {14-31},
  DOI = {10.1016/j.tre.2013.03.003},
  note = {Accepted on Mar 16, 2013}}}
```

Technical reports

2013

Umang N., Erera A., Bierlaire M. (2013). The robust single machine scheduling problem with uncertain release and processing times. Report TRANSP-OR 131029


@TechReport{NitEraBier2013,
  author = {Nitish Umang and Alan Erera and Michel Bierlaire},
  title = {The robust single machine scheduling problem with uncertain release and processing times},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2013},
  type = {Technical Report},
  number = {TRANSP-OR 131029},
  address = {Lausanne, Switzerland}}}

Umang N., Bierlaire M., Erera A. (2013). Real-time management of berth allocation with stochastic arrival and handling times. Report TRANSP-OR 130215


@TechReport{NitBierEra2013,
  author = {Nitish Umang and Michel Bierlaire and Alan Erera},
  title = {Real-time management of berth allocation with stochastic arrival and handling times},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2013},
  type = {Technical Report},
  number = {TRANSP-OR 130215},
  address = {Lausanne, Switzerland}}}

2012

Robenek T., Umang N., Bierlaire M., Ropke S. (2012). A branch-and-price algorithm to solve the integrated berth allocation and yard assignment problem in bulk ports. Report TRANSP-OR 121030


@TechReport{TomNitBierStef12,
  author = {Tom\'a\v{s} Robenek and Nitish Umang and Michel Bierlaire and Stefan Ropke},
  title = {A branch-and-price algorithm to solve the integrated berth allocation and yard assignment problem in bulk ports},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2012},
  type = {Technical Report},
  number = {TRANSP-OR 121030},
  address = {Lausanne, Switzerland}}}

Umang N., Bierlaire M., Vacca I. (2012). Exact and heuristic methods to solve the berth allocation problem in bulk ports. Report TRANSP-OR 120116


@TechReport{NitBierVac12,
  author = {Nitish Umang and Michel Bierlaire and Ilaria Vacca},
  title = {Exact and heuristic methods to solve the berth allocation problem in bulk ports},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2012},
  type = {Technical Report},
  number = {TRANSP-OR 120116},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2012


@InProceedings{TomasNitishBierlaire_STRC2012,
  author = {Tom\'a\v{s} Robenek and Nitish Umang and Michel Bierlaire},
  title = {Integrated Berth Allocation and Yard Assignment in Bulk Ports using Column Generation},
  booktime = {Proceedings of the 12th Swiss Transport Research Conference (STRC), May 2-4},
  year = {2012},
  address = {Monte Verita / Ascona, Switzerland}}}

Umang N., Bierlaire M. (2012) Real Time Recovery in Berth Allocation Problem in Bulk Ports. Proceedings of the 12th Swiss Transport Research Conference (STRC), May 2-4, Monte Verita / Ascona, Switzerland


@InProceedings{NitishBierlaire_STRC2012,
  author = {Nitish Umang and Michel Bierlaire},
  title = {Real Time Recovery in Berth Allocation Problem in Bulk Ports},
  booktime = {Proceedings of the 12th Swiss Transport Research Conference (STRC), May 2-4},
  year = {2012},
  address = {Monte Verita / Ascona, Switzerland}}}

2011

Umang N., Bierlaire M., Vacca I. (2011) The Berth Allocation Problem in Bulk Ports. Proceedings of the 11th Swiss Transport Research Conference (STRC), May 11-13, Monte Verita / Ascona, Switzerland


@InProceedings{Nitish_STRC2011,
  author = {Nitish Umang and Michel Bierlaire and Ilaria Vacca},
  title = {The Berth Allocation Problem in Bulk Ports},
  booktime = {Proceedings of the 11th Swiss Transport Research Conference (STRC), May 11-13},
  year = {2011},
  address = {Monte Verita / Ascona, Switzerland}}}

Talks

2013

Umang N., Bierlaire M., Erera A. Strategies to deal with uncertainty in real time in the berth allocation problem September 06, 2013. International Conference on Operations Research, Erasmus University Rotterdam, Netherlands.


@Misc{OR_Nit2013,
  author = {Nitish Umang and Michel Bierlaire and Alan Erera},
  title = {Strategies to deal with uncertainty in real time in the berth allocation problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/OR_Nit2013.pdf}},
  year = {2013},
  note = {Presented at International Conference on Operations Research, Erasmus University Rotterdam, Netherlands}}}

Umang N., Bierlaire M., Erera A. Real-time management of the berth allocation problem with stochastic arrival and handling times June 17, 2013. Second INFORMS TSL Workshop 2013, Asilomar Conference Grounds, Pacific Grove CA, USA.


@Misc{TSL_Nit2013,
  author = {Nitish Umang and Michel Bierlaire and Alan Erera},
  title = {Real-time management of the berth allocation problem with stochastic arrival and handling times},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/TSL_Nit2013.pdf}},
  year = {2013},
  note = {Presented at Second INFORMS TSL Workshop 2013, Asilomar Conference Grounds, Pacific Grove CA, USA}}}

2012

Umang N., Bierlaire M. Reactive methods to solve the berth allocation problem with stochastic arrival and handling times November 22, 2012. First Large Scale Optimization Workshop, Vevey, Switzerland.


@Misc{LOW_Nitish_2012,
  author = {Nitish Umang and Michel Bierlaire},
  title = {Reactive methods to solve the berth allocation problem with stochastic arrival and handling times},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/LOW_Nitish_2012.pdf}},
  year = {2012},
  note = {Presented at First Large Scale Optimization Workshop, Vevey, Switzerland}}}

Umang N., Bierlaire M. Real Time Recovery in Berth Allocation Problem September 06, 2012. 1st European Symposium on Quantitative Methods in Transportation Systems, Lausanne, Switzerland.


@Misc{Latsis_Nitish_2012,
  author = {Nitish Umang and Michel Bierlaire},
  title = {Real Time Recovery in Berth Allocation Problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Latsis_Nitish_2012.pdf}},
  year = {2012},
  note = {Presented at 1st European Symposium on Quantitative Methods in Transportation Systems, Lausanne, Switzerland}}}

Umang N., Bierlaire M. Real-Time Disruption Recovery in Berth Allocation Problem July 11, 2012. 25th European Conference on Operational Research, Vilnius, Lithuania.


@Misc{Euro2012_Nitish,
  author = {Nitish Umang and Michel Bierlaire},
  title = {Real-Time Disruption Recovery in Berth Allocation Problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Euro2012_Nitish.pdf}},
  year = {2012},
  note = {Presented at 25th European Conference on Operational Research, Vilnius, Lithuania}}}

Umang N., Bierlaire M. Berth Allocation Problem in Real Time June 29, 2012. 10th Joint Operations Research Days 2012, Neuchatel, Switzerland.


@Misc{IBMORDays2012_Nitish,
  author = {Nitish Umang and Michel Bierlaire},
  title = {Berth Allocation Problem in Real Time},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/IBMORDays2012_Nitish.pdf}},
  year = {2012},
  note = {Presented at 10th Joint Operations Research Days 2012, Neuchatel, Switzerland}}}

Umang N., Bierlaire M., Robenek T. Integrated and Robust Planning of Bulk Port Operations June 05, 2012. Euro Summer Institute on Maritime Logistics, ESI 2012, Bremen, Germany.


@Misc{ESI2012_Nitish,
  author = {Nitish Umang and Michel Bierlaire and Tom\'a\v{s} Robenek},
  title = {Integrated and Robust Planning of Bulk Port Operations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/ESI2012_Nitish.pdf}},
  year = {2012},
  note = {Presented at Euro Summer Institute on Maritime Logistics, ESI 2012, Bremen, Germany}}}

Umang N., Bierlaire M. Disruption Management and Re-scheduling in Berth Allocation Problem in Bulk Ports May 25, 2012. 5th International Workshop on Freight Transportation and Logistics, Odysseus 2012, Mykonos, Greece.


@Misc{Odysseus2012_Nitish,
  author = {Nitish Umang and Michel Bierlaire},
  title = {Disruption Management and Re-scheduling in  Berth Allocation Problem in Bulk Ports},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Odysseus2012_Nitish.pdf}},
  year = {2012},
  note = {Presented at 5th International Workshop on Freight Transportation and Logistics, Odysseus 2012, Mykonos, Greece}}}

Umang N., Bierlaire M. Real Time Recovery in Berth Allocation Problem in Bulk Ports May 02, 2012. Swiss Transport Research Conference, STRC, Monte Verita / Ascona, Switzerland.


@Misc{STRC2012_Nitish,
  author = {Nitish Umang and Michel Bierlaire},
  title = {Real Time Recovery in Berth Allocation Problem in Bulk Ports},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/STRC2012_Nitish.pdf}},
  year = {2012},
  note = {Presented at Swiss Transport Research Conference, STRC, Monte Verita / Ascona, Switzerland}}}

2011

Umang N., Bierlaire M., Vacca I. Exact Solution Approaches to the Berth Allocation Problem in Bulk Sea Port Terminals July 14, 2011. IFORS, 2011, Melbourne, Australia.


@Misc{Nitish_IFORS2011,
  author = {Nitish Umang and Michel Bierlaire and Ilaria Vacca},
  title = {Exact Solution Approaches to the Berth Allocation Problem in Bulk Sea Port Terminals},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Nitish_IFORS2011.pdf}},
  year = {2011},
  note = {Presented at IFORS, 2011, Melbourne, Australia}}}

Umang N., Bierlaire M., Vacca I. The Berth Allocation Problem in Bulk Ports May 13, 2011. Swiss Transport Research Conference, STRC, Monte Verita / Ascona, Switzerland.


@Misc{STRC2011_NITISH,
  author = {Nitish Umang and Michel Bierlaire and Ilaria Vacca},
  title = {The Berth Allocation Problem in Bulk Ports},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/STRC2011_NITISH.pdf}},
  year = {2011},
  note = {Presented at Swiss Transport Research Conference, STRC, Monte Verita / Ascona, Switzerland}}}

Reviewing

Research projects

2011

Large scale robust optimization of bulk port operations.

The primary objective of this research is to develop large scale robust optimization algorithms providing sustainable solutions for bulk port operations accounting for uncertainties and disruptions in operations. While significant contributions have been made for container terminals, relatively little attention has been directed to the use of operations research methods and techniques to optimize bulk port operations. In this research we aim to develop large scale mathematical models for bulk port operations, with emphasis on integrated planning; furthermore, we plan to include robustness to account for uncertainties in operations. A broader objective of our work is to study how the methodologies developed for bulk ports can be extended to multi-modal transport operations, including other domains such as container ports, airlines and railways, with a view to optimize the usage and operations of existing infrastructure to achieve sustainability in the mobility of goods and people. The devised models and algorithms will be tested and validated in a real-world context using as a case study, the SAQR port in Ras Al Khaimah, UAE.
- Jan 01, 2011 - Apr 30, 2014
- Sponsor: EPFL Middle East
- Principal investigator: Michel Bierlaire
- Project managers: Nitish Umang, Ilaria Vacca

EPFL courses

Fall 2013

Introduction � l'optimisation diff�rentiable.
- Level: Bachelor
- Sections: Mechanical Engineering, Electrical and Electronics Engineering, Chemistry and Chemical Engineering, Computer science
- Lecturer: Michel Bierlaire
- Teaching assistant: Nitish Umang
- Webpage: http://transp-or.epfl.ch/courses/optimizationfall2013/
Recherche op�rationnelle.
- Level: Bachelor
- Sections: Civil Engineering, Environmental Sciences and Engineering
- Lecturer: Michel Bierlaire
- Teaching assistant: Nitish Umang
- Webpage: http://transp-or.epfl.ch/courses/rofall2013/

Spring 2012

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Michel Bierlaire, Prem Kumar
- Teaching assistants: Jingmin Chen, Nitish Umang
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2012
Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Bilal Farooq, Prem Kumar
- Teaching assistant: Nitish Umang
- Webpage: http://transp-or.epfl.ch/courses/OptSim2012/

Fall 2011

Introduction � l'optimisation diff�rentiable.
- Level: Bachelor
- Sections: Mechanical Engineering, Electrical and Electronics Engineering, Chemistry and Chemical Engineering, Computer science
- Lecturer: Michel Bierlaire
- Teaching assistants: Bilge Atasoy, Nitish Umang

Spring 2011

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Michel Bierlaire, Prem Kumar
- Teaching assistants: Jingmin Chen, Nitish Umang
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2011

Master theses

2012

A two-stage sequential linear programming approach to optimize security staff at Geneva Airport, Mahmoud Kharouf (Civil Engineering)
- Supervision: Michel Bierlaire, Nitish Umang, Prem Kumar
- External expert: Vincent-Ruben Jimenez
Integrated berth allocation and yard assignment in bulk ports using column generation, Tomas Robenek (None)
- Supervision: Michel Bierlaire, Nitish Umang
- External expert:

Semester projects

2012-2013

Job Shop Scheduling in a Medical Parts Production Factory, Nathan Scheinmann (Mathematics)

Supervision: Michel Bierlaire, Nitish Umang

Process Optimization and School Schedules: New Legistlation, New Constraints, Ailin Zhang (Mathematics)

Supervision: Michel Bierlaire, Nitish Umang

2011-2012

Optimizing Security Staff Operations at Geneva Airport, MAHMOUD KHAROUF

Supervision: Michel Bierlaire, Prem Kumar, Nitish Umang
Geneva airport is the second largest airport in Switzerland. Airport is capable of easily handling 80-100 landings and take-offs per hour. However one of the major bottlenecks today is the passenger handling capacity. The airport terminal area can handle up to 3000 passengers per hour. In recent times, passenger congestion is frequently building up at the airport. Because of the geographical reasons, it is not easy to expand the terminal building. As a result, it may be fruitful to attempt reducing congestion by efficient handling of the passengers and not letting the passengers wait too long to be serviced. Security screening is the most important area for departing passengers. Optimizing the operating costs for security personnel at airports is a complex problem due to a number of reasons. Each passenger and their corresponding hand baggage need to undergo security screening before entering the boarding gates. Even though the passengers and the baggage need to move together, the rate of service for the two can be vastly different. Security personnel work over specific shift times and need to be provided with suitable meal breaks. Staff members can work full-time or part-time, with a minimum of four hours per day. Passenger arrival pattern at an airport can be extremely uneven. Flight activities also tend to be non-uniform while passenger service expectations and staffing inflexibilities due to shift durations can make the problem even more complex. In this work, we would use the flight schedule and service criteria to develop a method to find optimal shift timings and the mix of full-time and part-time workers such that the overall costs are minimized and the service criteria conditions are fulfilled. Term Project (Master Project Pre-Study) Deliverables � Determine global parameters for passenger arrival rates, service times and shift times at different times of the day and days of the week for both passengers and baggages � Develop and implement a cost optimization MIP model with discrete time intervals Masters Project Deliverables � Adapt the deterministic linear model to account for non-linear passenger arrival and service rates and implement the same � Build a robust optimization model to capture vastly varying arrival and service rates. Determine the various ways to capture model stability with special emphasis on recoverability � Perform sensitivity analysis and compare the results of the stochastic model with simulation � Use the results to make recommendations: For example, create a separate queue or sub-queue for passengers without baggage, or passengers whose flights depart in 20 mins should be brought ahead of the queue, etc. � Develop and implement the model for staff rostering at the security screening Apart from expertise in modeling, the student is expected to be able to implement his model and write his own codes in a standard programming language, such as C or C++ Desired Masters Project Deliverables � Evaluate the tendency for staff to take leaves (including sick leaves) and vacation (subject to data availability) � Plan for contingencies in your model Project Organization The student would be expected to update us on the progress and revert to us for queries on a pre-decided day of the week. The student would be expected to update us on the progress and revert to us for queries on a pre-decided day of the week. A midterm presentation would be scheduled on Thursday, 10.11.2011. At the completion of the term project, a report will be delivered (both in paper as well as electronic form) before the 13.01.2012. The final oral presentation for the term project will be scheduled on 11.01.2012. Similarly, the Masters project would be due before the 01.06.2012 while the oral presentation for Masters project will be scheduled between 18.06.2012 and 29.06.2012 or a mutually convenient and agreed date. All the files, programs, codes, data and report associated with the project must be delivered before these date. All reports will be submitted in two copies to TRANSP-OR Lab and GVA Airport. References � Dowling, D., Krishnamoorthy, M., Mackenzie, H., and Sier, D. (1997). Staff rostering at a large international airport. Annals of Operations Research, 72:125-147. � Ernst, A., Jiang, H., Krishnamoorthy, M., and Sier, D. (2004). Staff scheduling and rostering: A review of applications, methods and models. European journal of operational research, 153(1):3-27. � Gilliam, R. (1979). An application of queueing theory to airport passenger security screening. Interfaces, 9(4):117-123.

Robustness and Recovery in Berth Allocation Problem, Wei Li (Management of Technology and Financial Engineering)

Supervision: Michel Bierlaire, Nitish Umang

Aurélie Glerum

Aurélie Glerum has been a member of the laboratory from Apr 01, 2010 to Jul 31, 2014

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Aurélie Glerum.

Journal articles

2017


@Article{VaroGlerStatBierLong17,
  author = {Silvia Varotto and Aur\'elie Glerum and Amanda Stathopoulos and Michel Bierlaire and Giovanni Longo},
  title = {Mitigating the impact of errors in travel time reporting on mode choice modelling},
  journal = {Journal of Transport Geography},
  year = {2017},
  volume = {62},
  pages = {236-246},
  DOI = {10.1016/j.jtrangeo.2017.05.016},
  note = {Accepted on May 31, 2017}}}

2014

Hurtubia R., Nguyen M., Glerum A., Bierlaire M. (2014). Integrating psychometric indicators in latent class choice models. Transportation Research Part A: Policy and Practice 64 :135-146


@Article{HuNgGlBi_2014,
  author = {Ricardo Hurtubia and {My Hang} Nguyen and Aur\'elie Glerum and Michel Bierlaire},
  title = {Integrating psychometric indicators in latent class choice models},
  journal = {Transportation Research Part A: Policy and Practice},
  year = {2014},
  volume = {64},
  pages = {135-146},
  DOI = {10.1016/j.tra.2014.03.010},
  note = {Accepted on Mar 11, 2014}}}

Glerum A., Atasoy B., Bierlaire M. (2014). Using semi-open questions to integrate perceptions in choice models. Journal of Choice Modelling 10 :11-33

This research investigates the measurement of perceptions by means of adjectives freely reported by respondents in semi-open questions. It involved the use of semi-open responses of 1'763 Swiss individuals to develop indicators for a latent variable representing the perception of comfort of public transportation. The indicators are then incorporated into a discrete choice model of revealed mode choices. Perceptions are assumed to impact choice significantly and this research aims at capturing their complexity using adjectives and integrating them into the hybrid choice modeling framework. We exploit a quantification of the adjectives performed by external evaluators. Given the subjectivity that is involved, we analyze the sensitivity of the results across evaluators who rated the adjectives. We observe that the aggregate indicators of demand, such as market shares, elasticities and values of time, are rather robust across evaluators. This is not the case for the disaggregate indicators that may vary substantially across evaluators.
```
@Article{GleAtaBie_2013,
  author = {Aur\'elie Glerum and Bilge Atasoy and Michel Bierlaire},
  title = {Using semi-open questions to integrate perceptions in choice models},
  journal = {Journal of Choice Modelling},
  year = {2014},
  volume = {10},
  pages = {11-33},
  DOI = {10.1016/j.jocm.2013.12.001},
  note = {Accepted on Dec 13, 2013}}}
```
Glerum A., Stankovikj L., Thémans M., Bierlaire M. (2014). Forecasting the demand for electric vehicles: accounting for attitudes and perceptions. Transportation Science 48 (4):483-499

In the context of the arrival of electric vehicles on the car market, new mathematical models are needed to understand and predict the impact on the market shares. This research provides a comprehensive methodology to forecast the demand of a technology which is not widespread yet, such as electric cars. It aims at providing contributions regarding three issues related to the prediction of the demand for electric vehicles: survey design, model estimation and forecasting. We develop a stated preferences (SP) survey with personalized choice situations involving standard gasoline/diesel cars and electric cars. We specify a hybrid choice model accounting for attitudes towards leasing contracts or practical aspects of a car in the decision-making process. A forecasting analysis based on the collected SP data and market data is performed to evaluate the future demand for electric cars.
```
@Article{GleStaTheBie_2013,
  author = {Aur\'elie Glerum and Lidija Stankovikj and Micha\"el Th\'emans and Michel Bierlaire},
  title = {Forecasting the demand for electric vehicles: accounting for attitudes and perceptions},
  journal = {Transportation Science},
  year = {2014},
  volume = {48},
  number = {4},
  pages = {483-499},
  DOI = {10.1287/trsc.2013.0487},
  note = {Accepted on May 29, 2013}}}
```

2013

Atasoy B., Glerum A., Bierlaire M. (2013). Attitudes towards mode choice in Switzerland. disP - The Planning Review 49 (2):101-117

We integrate latent attitudes of individuals into a mode choice model through latent variable and latent class models with the help of psychometric indicators that enable us to measure these attitudes. The aim of the inclusion of attitudes is to better understand the underlying choice preferences of travelers and therefore increase the forecasting power of the choice model. We first present an integrated choice and latent variable model where we include attitudes towards public transportation and environmental issues explaining the utility of public transport. Secondly we present an integrated choice and latent class model where we identify two segments of individuals having different sensitivities to the attributes of the alternatives resulting from their individual characteristics. Calibration of these types of advanced models on our sample has demonstrated the importance of attitudinal variables in the characterization of the population heterogeneity.
```
@Article{AtaGlerBier2012_DISP,
  author = {Bilge Atasoy and Aur\'elie Glerum and Michel Bierlaire},
  title = {Attitudes towards mode choice in Switzerland},
  journal = {disP - The Planning Review},
  year = {2013},
  volume = {49},
  number = {2},
  pages = {101-117},
  DOI = {10.1080/02513625.2013.827518},
  note = {Accepted on Apr 25, 2012}}}
```

Technical reports

2014

Glerum A., Bierlaire M. (2014). Capturing response behavior heterogeneity in the quantification of semi-open questions: a mixed discrete-continuous approach. Report TRANSP-OR 140305


@TechReport{GleBie_2014,
  author = {Aur\'elie Glerum and Michel Bierlaire},
  title = {Capturing response behavior heterogeneity in the quantification of semi-open questions: a mixed discrete-continuous approach},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2014},
  type = {Technical Report},
  number = {TRANSP-OR 140305},
  address = {Lausanne, Switzerland}}}

2013

Hurtubia R., Nguyen M., Glerum A., Bierlaire M. (2013). Integrating psychometric indicators in latent class choice models. Report TRANSP-OR 130423


@TechReport{HuNgGlBi_2013,
  author = {Ricardo Hurtubia and {My Hang} Nguyen and Aur\'elie Glerum and Michel Bierlaire},
  title = {Integrating psychometric indicators in latent class choice models},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2013},
  type = {Technical Report},
  number = {TRANSP-OR 130423},
  address = {Lausanne, Switzerland}}}

2012

Glerum A., Atasoy B., Bierlaire M. (2012). Using semi-open questions to integrate perceptions in choice models. Report TRANSP-OR 120325


@TechReport{GleAtaBie_2012,
  author = {Aur\'elie Glerum and Bilge Atasoy and Michel Bierlaire},
  title = {Using semi-open questions to integrate perceptions in choice models},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2012},
  type = {Technical Report},
  number = {TRANSP-OR 120325},
  address = {Lausanne, Switzerland}}}

Glerum A., Stankovikj L., Thémans M., Bierlaire M. (2012). Forecasting the demand for electric vehicles: accounting for attitudes and perceptions. Report TRANSP-OR 120217


@TechReport{GleStaTheBie_2012,
  author = {Aur\'elie Glerum and Lidija Stankovikj and Micha\"el Th\'emans and Michel Bierlaire},
  title = {Forecasting the demand for electric vehicles: accounting for attitudes and perceptions},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2012},
  type = {Technical Report},
  number = {TRANSP-OR 120217},
  address = {Lausanne, Switzerland}}}

2011

Bierlaire M., Curchod A., Danalet A., Doyen E., Faure P., Glerum A., Kaufmann V., Tabaka K., Schuler M. (2011). Projet de recherche sur la mobilit� combin�e, Rapport d�finitif de l'enqu�te de pr�f�rences r�v�l�es. Report TRANSP-OR 110704


@TechReport{OptimaRP2011,
  author = {Michel Bierlaire and Anne Curchod and Antonin Danalet and Etienne Doyen and Prisca Faure and Aur\'elie Glerum and Vincent Kaufmann and Kamila Tabaka and Martin Schuler},
  title = {Projet de recherche sur la mobilit\'e combin\'ee, Rapport d\'efinitif de l'enqu\^ete de pr\'ef\'erences r\'ev\'el\'ees},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2011},
  type = {Technical Report},
  number = {TRANSP-OR 110704},
  address = {Lausanne, Switzerland}}}

Atasoy B., Glerum A., Bierlaire M. (2011). Attitudes towards mode choice in Switzerland. Report TRANSP-OR 110502


@TechReport{AtaGlerBier_2011,
  author = {Bilge Atasoy and Aur\'elie Glerum and Michel Bierlaire},
  title = {Attitudes towards mode choice in Switzerland},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2011},
  type = {Technical Report},
  number = {TRANSP-OR 110502},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2014

Glerum A., Frejinger E., Karlstrom A., Beser Hugosson M., Bierlaire M. (2014) A dynamic discrete-continuous choice model for car ownership and usage: Estimation procedure. Proceedings of the 14th Swiss Transport Research Conference (STRC), May 14-16, Ascona, Switzerland


@InProceedings{GlFrKaBeBi_STRC2014,
  author = {Aur\'elie Glerum and Emma Frejinger and Anders Karlstrom and Muriel {Beser Hugosson} and Michel Bierlaire},
  title = {A dynamic discrete-continuous choice model for car ownership and usage: Estimation procedure},
  booktime = {Proceedings of the 14th Swiss Transport Research Conference (STRC), May 14-16},
  year = {2014},
  address = {Ascona, Switzerland}}}


@InProceedings{VarGleStaBie_STRC2014,
  author = {Silvia Varotto and Aur\'elie Glerum and Amanda Stathopoulos and Michel Bierlaire},
  title = {Modelling travel time perception in transport mode choices},
  booktime = {Proceedings of the 14th Swiss Transport Research Conference (STRC), May 14-16},
  year = {2014},
  address = {Ascona, Switzerland}}}

2013

Glerum A., Frejinger E., Karlstrom A., Beser Hugosson M., Bierlaire M. (2013) A dynamic discrete-continuous choice model of car ownership, usage and fuel type. Proceedings of the Second Symposium of the European Association for Research in Transportation (hEART), September 4-6, Stockholm, Sweden


@InProceedings{GlerumEtAl_heart2013,
  author = {Aur\'elie Glerum and Emma Frejinger and Anders Karlstrom and Muriel {Beser Hugosson} and Michel Bierlaire},
  title = {A dynamic discrete-continuous choice model of car ownership, usage and fuel type},
  booktime = {Proceedings of the Second Symposium of the European Association for Research in Transportation (hEART), September 4-6},
  year = {2013},
  address = {Stockholm, Sweden}}}

Glerum A., Frejinger E., Karlstrom A., Beser Hugosson M., Bierlaire M. (2013) Modeling car ownership and usage: a dynamic discrete-continuous choice modeling approach. Proceedings of the Third International Choice Modelling Conference (ICMC), July 3-5, Sydney, Australia


@InProceedings{GlFrKaBeBi_ICMC2013,
  author = {Aur\'elie Glerum and Emma Frejinger and Anders Karlstrom and Muriel {Beser Hugosson} and Michel Bierlaire},
  title = {Modeling car ownership and usage: a dynamic discrete-continuous choice modeling approach},
  booktime = {Proceedings of the Third International Choice Modelling Conference (ICMC), July 3-5},
  year = {2013},
  address = {Sydney, Australia}}}

Glerum A., Frejinger E., Karlstrom A., Beser Hugosson M., Bierlaire M. (2013) A dynamic discrete-continuous choice model of car ownership and usage: Methodological framework. Proceedings of the 13th Swiss Transport Research Conference (STRC), April 24-26, Ascona, Switzerland


@InProceedings{GlFrKaBeBi_STRC2013,
  author = {Aur\'elie Glerum and Emma Frejinger and Anders Karlstrom and Muriel {Beser Hugosson} and Michel Bierlaire},
  title = {A dynamic discrete-continuous choice model of car ownership and usage: Methodological framework},
  booktime = {Proceedings of the 13th Swiss Transport Research Conference (STRC), April 24-26},
  year = {2013},
  address = {Ascona, Switzerland}}}


@InProceedings{StaGleTheBie,
  author = {Amanda Stathopoulos and Aur\'elie Glerum and Micha\"el Th\'emans and Michel Bierlaire},
  title = { Dynamic vehicle ownership forecasting: a framework to model inter-temporal renewal decisions},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), April 24-26},
  year = {2013},
  address = {Ascona, Switzerland}}}

Glerum A., Frejinger E., Karlstrom A., Beser Hugosson M., Bierlaire M. (2013) Dynamic discrete-continuous choice modeling approach for car use, ownership and fuel type choice based on register data. Proceedings of the Eighth Triennial Symposium on Transportation Analysis (TRISTAN VIII), June 9-14, San Pedro de Atacama, Chile


@InProceedings{GlFrKaBeBi_TRISTAN2013,
  author = {Aur\'elie Glerum and Emma Frejinger and Anders Karlstrom and Muriel {Beser Hugosson} and Michel Bierlaire},
  title = {Dynamic discrete-continuous choice modeling approach for car use, ownership and fuel type choice based on register data},
  booktime = {Proceedings of the Eighth Triennial Symposium on Transportation Analysis (TRISTAN VIII), June 9-14},
  year = {2013},
  address = {San Pedro de Atacama, Chile}}}

2012

Glerum A., Bierlaire M. (2012) The use of word data to measure perception in hybrid choice models. Proceedings of the 13th International Conference on Travel Behavior Research (IATBR), July 15-20, Toronto, Canada


@InProceedings{GleBie_IATBR2012,
  author = {Aur\'elie Glerum and Michel Bierlaire},
  title = {The use of word data to measure perception in hybrid choice models},
  booktime = {Proceedings of the 13th International Conference on Travel Behavior Research (IATBR), July 15-20},
  year = {2012},
  address = {Toronto, Canada}}}

Glerum A., Bierlaire M. (2012) An enhanced measurement model of perception of comfort in public transportation. Proceedings of the 1st European Symposium on Quantitative Methods in Transportation Systems (LATSIS 2012), September 4-7, Lausanne, Switzerland


@InProceedings{GleBie_LATSIS12,
  author = {Aur\'elie Glerum and Michel Bierlaire},
  title = {An enhanced measurement model of perception of comfort in public transportation},
  booktime = {Proceedings of the 1st European Symposium on Quantitative Methods in Transportation Systems (LATSIS 2012), September 4-7},
  year = {2012},
  address = {Lausanne, Switzerland}}}

Glerum A., Bierlaire M. (2012) Accounting for response behavior heterogeneity in the measurement of attitudes: an application to demand for electric vehicles. Proceedings of the 12th Swiss Transport Research Conference (STRC), May 2-4, Ascona, Switzerland


@InProceedings{GleBie_STRC2012,
  author = {Aur\'elie Glerum and Michel Bierlaire},
  title = {Accounting for response behavior heterogeneity in the measurement of attitudes: an application to demand for electric vehicles},
  booktime = {Proceedings of the 12th Swiss Transport Research Conference (STRC), May 2-4},
  year = {2012},
  address = {Ascona, Switzerland}}}

2011

Atasoy B., Glerum A., Bierlaire M. (2011) Mode choice with attitudinal latent class: a Swiss case-study. Proceedings of the Second International Choice Modeling Conference (ICMC), July 4-6, Leeds, UK


@InProceedings{AtaGleBier_ICMC2011,
  author = {Bilge Atasoy and Aur\'elie Glerum and Michel Bierlaire},
  title = {Mode choice with attitudinal latent class: a Swiss case-study},
  booktime = {Proceedings of the Second International Choice Modeling Conference (ICMC), July 4-6},
  year = {2011},
  address = {Leeds, UK}}}

Glerum A., Atasoy B., Monticone A., Bierlaire M. (2011) Adjectives qualifying individuals' perceptions impacting on transport mode preferences. Proceedings of the Second International Choice Modeling Conference (ICMC), July 4-6, Leeds, UK


@InProceedings{GleAtaMonBie_ICMC2011,
  author = {Aur\'elie Glerum and Bilge Atasoy and Alberto Monticone and Michel Bierlaire},
  title = {Adjectives qualifying individuals' perceptions impacting on transport mode preferences},
  booktime = {Proceedings of the Second International Choice Modeling Conference (ICMC), July 4-6},
  year = {2011},
  address = {Leeds, UK}}}

Glerum A., Thémans M., Bierlaire M. (2011) Modeling demand for electric vehicles: the effect of car users' attitudes and perceptions. Proceedings of the Second International Choice Modeling Conference (ICMC), July 4-6, Leeds, UK


@InProceedings{GleTheBie_ICMC2011,
  author = {Aur\'elie Glerum and Micha\"el Th\'emans and Michel Bierlaire},
  title = {Modeling demand for electric vehicles: the effect of car users' attitudes and perceptions},
  booktime = {Proceedings of the Second International Choice Modeling Conference (ICMC), July 4-6},
  year = {2011},
  address = {Leeds, UK}}}

Glerum A., Thémans M., Bierlaire M. (2011) Emergence of electric mobility: a nested approach to vehicle choice modeling. Proceedings of the 11th Swiss Transport Research Conference (STRC), May 11-13, Ascona, Switzerland


@InProceedings{GleTheBie_STRC2011,
  author = {Aur\'elie Glerum and Micha\"el Th\'emans and Michel Bierlaire},
  title = {Emergence of electric mobility: a nested approach to vehicle choice modeling},
  booktime = {Proceedings of the 11th Swiss Transport Research Conference (STRC), May 11-13},
  year = {2011},
  address = {Ascona, Switzerland}}}

2010

Atasoy B., Glerum A., Hurtubia R., Bierlaire M. (2010) Demand for public transport services: Integrating qualitative and quantitative methods. Proceedings of the 10th Swiss Transport Research Conference (STRC), September 1 - 3, 2010, Ascona, Switzerland


@InProceedings{ATASOY_STRC2010,
  author = {Bilge Atasoy and Aur\'elie Glerum and Ricardo Hurtubia and Michel Bierlaire},
  title = {Demand for public transport services: Integrating qualitative and quantitative methods},
  booktime = {Proceedings of the 10th Swiss Transport Research Conference (STRC), September 1 - 3, 2010},
  year = {2010},
  address = {Ascona, Switzerland}}}

Hurtubia R., Atasoy B., Glerum A., Curchod A., Bierlaire M. (2010) Considering latent attitudes in mode choice: The case of Switzerland. Proceedings of the World Conference on Transport Research (WCTR 2010), July 11-15, Lisbon, Portugal


@InProceedings{Hurt_WCTR10,
  author = {Ricardo Hurtubia and Bilge Atasoy and Aur\'elie Glerum and Anne Curchod and Michel Bierlaire},
  title = {Considering latent attitudes in mode choice: The case of Switzerland},
  booktime = {Proceedings of the World Conference on Transport Research (WCTR 2010), July 11-15},
  year = {2010},
  address = {Lisbon, Portugal}}}

Talks

2014

Glerum A., Frejinger E., Karlstrom A., Beser Hugosson M., Bierlaire M. A dynamic discrete-continuous choice model for car ownership and usage: estimation procedure May 15, 2014. Swiss Transport Research Conference, Ascona.


@Misc{Glerum_STRC_14,
  author = {Aur\'elie Glerum and Emma Frejinger and Anders Karlstrom and Muriel {Beser Hugosson} and Michel Bierlaire},
  title = {A dynamic discrete-continuous choice model for car ownership and usage: estimation procedure},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Glerum_STRC_14.pdf}},
  year = {2014},
  note = {Presented at Swiss Transport Research Conference, Ascona}}}

2013

Glerum A., Frejinger E., Karlstrom A., Beser Hugosson M., Bierlaire M. A dynamic discrete-continuous choice model of car ownership, usage and fuel type November 12, 2013. Workshop session on 'discrete-continuous models of car ownership and use', University of Leeds, Leeds, UK.


@Misc{Glerum_ITSLeeds,
  author = {Aur\'elie Glerum and Emma Frejinger and Anders Karlstrom and Muriel {Beser Hugosson} and Michel Bierlaire},
  title = {A dynamic discrete-continuous choice model of car ownership, usage and fuel type},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Glerum_ITSLeeds.pdf}},
  year = {2013},
  note = {Presented at Workshop session on 'discrete-continuous models of car ownership and use', University of Leeds, Leeds, UK}}}

Glerum A., Stankovikj L., Thémans M., Bierlaire M. Forecasting the demand for electric vehicles November 12, 2013. EDC seminar, University of Leeds, Leeds, UK.


@Misc{Glerum_ITSLeeds2,
  author = {Aur\'elie Glerum and Lidija Stankovikj and Micha\"el Th\'emans and Michel Bierlaire},
  title = {Forecasting the demand for electric vehicles},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Glerum_ITSLeeds2.pdf}},
  year = {2013},
  note = {Presented at EDC seminar, University of Leeds, Leeds, UK}}}

Glerum A., Frejinger E., Karlstrom A., Beser Hugosson M., Bierlaire M. A dynamic discrete-continuous choice model to explain car ownership, usage and fuel type decisions October 11, 2013. IRE seminar, Università della Svizzera italiana, Lugano, Switzerland.


@Misc{Glerum_USI2,
  author = {Aur\'elie Glerum and Emma Frejinger and Anders Karlstrom and Muriel {Beser Hugosson} and Michel Bierlaire},
  title = {A dynamic discrete-continuous choice model to explain car ownership, usage and fuel type decisions},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Glerum_USI2.pdf}},
  year = {2013},
  note = {Presented at IRE seminar, Universit\à della Svizzera italiana, Lugano, Switzerland}}}

Glerum A., Stankovikj L., Thémans M., Atasoy B., Bierlaire M. Integrated choice and latent variable models: applications to vehicle and mode choice modeling October 10, 2013. IRE seminar, Università della Svizzera italiana, Lugano, Switzerland.


@Misc{Glerum_USI1,
  author = {Aur\'elie Glerum and Lidija Stankovikj and Micha\"el Th\'emans and Bilge Atasoy and Michel Bierlaire},
  title = {Integrated choice and latent variable models: applications to vehicle and mode choice modeling},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Glerum_USI1.pdf}},
  year = {2013},
  note = {Presented at IRE seminar, Universit\à della Svizzera italiana, Lugano, Switzerland}}}

Glerum A., Frejinger E., Karlstrom A., Beser Hugosson M., Bierlaire M. A dynamic discrete-continuous choice model of car ownership, usage and fuel type September 05, 2013. Second Symposium of the European Association for Research in Transportation, Stockholm, Sweden.


@Misc{Glerum_hEART2013,
  author = {Aur\'elie Glerum and Emma Frejinger and Anders Karlstrom and Muriel {Beser Hugosson} and Michel Bierlaire},
  title = {A dynamic discrete-continuous choice model of car ownership, usage and fuel type},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Glerum_hEART2013.pdf}},
  year = {2013},
  note = {Presented at Second Symposium of the European Association for Research in Transportation, Stockholm, Sweden}}}

Glerum A., Frejinger E., Karlstrom A., Beser Hugosson M., Bierlaire M. Accounting for expectations about the future: a dynamic discrete-continuous choice model (DDCCM) of car ownership, usage and fuel type July 26, 2013. Seminar rCITI, University of New South Wales, Sydney, Australia.


@Misc{Glerum_UNSW2013,
  author = {Aur\'elie Glerum and Emma Frejinger and Anders Karlstrom and Muriel {Beser Hugosson} and Michel Bierlaire},
  title = {Accounting for expectations about the future: a dynamic  discrete-continuous choice model (DDCCM) of car ownership, usage and  fuel type},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Glerum_UNSW2013.pdf}},
  year = {2013},
  note = {Presented at Seminar rCITI, University of New South Wales, Sydney, Australia}}}

Glerum A., Frejinger E., Karlstrom A., Beser Hugosson M., Bierlaire M. Modeling car ownership and usage: a dynamic discrete-continuous choice modeling approach July 04, 2013. International Choice Modelling Conference, Sydney, Australia.


@Misc{GlFrKaBeBi_ICMC13,
  author = {Aur\'elie Glerum and Emma Frejinger and Anders Karlstrom and Muriel {Beser Hugosson} and Michel Bierlaire},
  title = {Modeling car ownership and usage: a dynamic discrete-continuous choice modeling approach},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/GlFrKaBeBi_ICMC13.pdf}},
  year = {2013},
  note = {Presented at International Choice Modelling Conference, Sydney, Australia}}}

Glerum A., Hurtubia R., Nguyen M., Bierlaire M. Enhanced measurement equations for latent class choice models May 31, 2013. Eighth workshop on discrete choice models, EPFL, Lausanne, Switzerland.


@Misc{Glerum_WDCA_13,
  author = {Aur\'elie Glerum and Ricardo Hurtubia and {My Hang} Nguyen and Michel Bierlaire},
  title = {Enhanced measurement equations for latent class choice models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Glerum_WDCA_13.pdf}},
  year = {2013},
  note = {Presented at Eighth workshop on discrete choice models, EPFL, Lausanne, Switzerland}}}

Glerum A., Frejinger E., Karlstrom A., Beser Hugosson M., Bierlaire M. A dynamic discrete-continuous choice model of car ownership and usage April 25, 2013. Swiss Transport Research Conference, Ascona.


@Misc{Glerum_STRC_13,
  author = {Aur\'elie Glerum and Emma Frejinger and Anders Karlstrom and Muriel {Beser Hugosson} and Michel Bierlaire},
  title = {A dynamic discrete-continuous choice model of car ownership and usage},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Glerum_STRC_13.pdf}},
  year = {2013},
  note = {Presented at Swiss Transport Research Conference, Ascona}}}

2012

Glerum A., Frejinger E., Karlstrom A., Beser Hugosson M., Bierlaire M. Dynamic discrete choice modeling for car use, ownership and fuel type based on register data December 17, 2012. IRUC seminar, DTU, Copenhagen.


@Misc{GlFrKaBeBi_IRUC12,
  author = {Aur\'elie Glerum and Emma Frejinger and Anders Karlstrom and Muriel {Beser Hugosson} and Michel Bierlaire},
  title = {Dynamic discrete choice modeling for car use, ownership and fuel type based on register data},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/GlFrKaBeBi_IRUC12.pdf}},
  year = {2012},
  note = {Presented at IRUC seminar, DTU, Copenhagen}}}

Glerum A., Hurtubia R., Nguyen M., Atasoy B., Bierlaire M. Demand models for transportation modes: a focus on the measurement of latent constructs affecting decisions October 12, 2012. TLA/ToL joint seminar, KTH Royal Institute of Technology, Stockholm, Sweden.


@Misc{GleHurNguAtaBieTLA12,
  author = {Aur\'elie Glerum and Ricardo Hurtubia and {My Hang} Nguyen and Bilge Atasoy and Michel Bierlaire},
  title = {Demand models for transportation modes: a focus on the measurement of latent constructs affecting decisions},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/GleHurNguAtaBieTLA12.pdf}},
  year = {2012},
  note = {Presented at TLA/ToL joint seminar, KTH Royal Institute of Technology, Stockholm, Sweden}}}

Glerum A., Bierlaire M. An enhanced measurement model of perception of comfort in public transportation September 06, 2012. LATSIS 2012: 1st European Symposium on Quantitative Methods in Transportation Systems, Lausanne, Switzerland.


@Misc{Glerum_LATSIS2012,
  author = {Aur\'elie Glerum and Michel Bierlaire},
  title = {An enhanced measurement model of perception of comfort in public transportation},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Glerum_LATSIS2012.pdf}},
  year = {2012},
  note = {Presented at LATSIS 2012: 1st European Symposium on Quantitative Methods in Transportation Systems, Lausanne, Switzerland}}}

Glerum A., Bierlaire M. The use of word data to measure perception in hybrid choice models July 17, 2012. 13th International Conference on Travel Behavior Research, Toronto.


@Misc{GleBie_IATBR_12,
  author = {Aur\'elie Glerum and Michel Bierlaire},
  title = {The use of word data to measure perception in hybrid choice models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/GleBie_IATBR_12.pdf}},
  year = {2012},
  note = {Presented at 13th International Conference on Travel Behavior Research, Toronto}}}

Glerum A., Bierlaire M. Accounting for response behavior heterogeneity in the measurement of attitudes: an application to demand for electric vehicles May 04, 2012. Swiss Transport Research Conference, Ascona.


@Misc{Glerum_STRC_12,
  author = {Aur\'elie Glerum and Michel Bierlaire},
  title = {Accounting for response behavior heterogeneity in the measurement of attitudes: an application to demand for electric vehicles},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Glerum_STRC_12.pdf}},
  year = {2012},
  note = {Presented at Swiss Transport Research Conference, Ascona}}}

2011

Glerum A., Bierlaire M., Atasoy B., Thémans M. Mod�les de demande int�grant attitudes et perceptions December 08, 2011. Séminaire du laboratoire GAEL, INRA et Université Pierre Mendès France, Grenoble, France.


@Misc{GleBieAtaTheGAEL11,
  author = {Aur\'elie Glerum and Michel Bierlaire and Bilge Atasoy and Micha\"el Th\'emans},
  title = {Mod\`eles de demande int\'egrant attitudes et perceptions},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/GleBieAtaTheGAEL11.pdf}},
  year = {2011},
  note = {Presented at S\éminaire du laboratoire GAEL, INRA et Universit\é Pierre Mend\ès France, Grenoble, France}}}

Glerum A., Bierlaire M. Models capturing latent constructs August 25, 2011. Seventh workshop on discrete choice models, EPFL, Lausanne, Switzerland.


@Misc{Glerum_WDCA_11,
  author = {Aur\'elie Glerum and Michel Bierlaire},
  title = {Models capturing latent constructs},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Glerum_WDCA_11.pdf}},
  year = {2011},
  note = {Presented at Seventh workshop on discrete choice models, EPFL, Lausanne, Switzerland}}}

Glerum A., Atasoy B., Bierlaire M. Measuring the impact of individuals' perceptions on their transport mode choice July 14, 2011. IFORS 2011, Melbourne, Australia.


@Misc{GleAtaBie_IFORS_11,
  author = {Aur\'elie Glerum and Bilge Atasoy and Michel Bierlaire},
  title = {Measuring the impact of individuals' perceptions on their transport mode choice},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/GleAtaBie_IFORS_11.pdf}},
  year = {2011},
  note = {Presented at IFORS 2011, Melbourne, Australia}}}

Glerum A., Thémans M., Bierlaire M. Integrating latent concepts in a demand model for electric vehicles July 14, 2011. IFORS 2011, Melbourne, Australia.


@Misc{GleTheBie_IFORS_11,
  author = {Aur\'elie Glerum and Micha\"el Th\'emans and Michel Bierlaire},
  title = {Integrating latent concepts in a demand model for electric vehicles},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/GleTheBie_IFORS_11.pdf}},
  year = {2011},
  note = {Presented at IFORS 2011, Melbourne, Australia}}}

Glerum A., Thémans M., Bierlaire M. Modeling demand for electric vehicles: the effect of car users' attitudes and perceptions July 06, 2011. ICMC 2011, Leeds, UK.


@Misc{GleTheBie_ICMC_11,
  author = {Aur\'elie Glerum and Micha\"el Th\'emans and Michel Bierlaire},
  title = {Modeling demand for electric vehicles: the effect of car users' attitudes and perceptions},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/GleTheBie_ICMC_11.pdf}},
  year = {2011},
  note = {Presented at ICMC 2011, Leeds, UK}}}

Glerum A., Atasoy B., Monticone A., Bierlaire M. Adjectives qualifying individuals� perceptions impacting on transport mode preferences July 04, 2011. ICMC 2011, Leeds, UK.


@Misc{GleAtaMonBie_ICMC_11,
  author = {Aur\'elie Glerum and Bilge Atasoy and Alberto Monticone and Michel Bierlaire},
  title = {Adjectives qualifying individuals{\textquoteright} perceptions impacting on transport mode preferences},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/GleAtaMonBie_ICMC_11.pdf}},
  year = {2011},
  note = {Presented at ICMC 2011, Leeds, UK}}}

Glerum A., Thémans M., Bierlaire M. Emergence of electric mobility: a nested approach to vehicle choice modeling May 11, 2011. Swiss Transport Research Conference, Ascona.


@Misc{Glerum_STRC_11,
  author = {Aur\'elie Glerum and Micha\"el Th\'emans and Michel Bierlaire},
  title = {Emergence of electric mobility: a nested approach to vehicle choice modeling},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Glerum_STRC_11.pdf}},
  year = {2011},
  note = {Presented at Swiss Transport Research Conference, Ascona}}}

2010

Glerum A., Antonini G., Wörner S., Bierlaire M. Application of Markov Decision Processes to pipeline data September 10, 2010. Eighth Joint Operations Research Days, University of Fribourg, Fribourg, Switzerland.


@Misc{Glerum_ORDAYS_10,
  author = {Aur\'elie Glerum and Gianluca Antonini and Stefan W\"orner and Michel Bierlaire},
  title = {Application of Markov Decision Processes to pipeline data},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Glerum_ORDAYS_10.pdf}},
  year = {2010},
  note = {Presented at Eighth Joint Operations Research Days, University of Fribourg, Fribourg, Switzerland}}}

Glerum A., Atasoy B., Monticone A., Hurtubia R., Bierlaire M. Analysis of the impact of travellers' attitudes and perceptions on mode choice in low-density areas August 19, 2010. Sixth workshop on discrete choice models, EPFL, Lausanne, Switzerland.


@Misc{Glerum_WDCA_10,
  author = {Aur\'elie Glerum and Bilge Atasoy and Alberto Monticone and Ricardo Hurtubia and Michel Bierlaire},
  title = {Analysis of the impact of travellers' attitudes and perceptions on mode choice in low-density areas},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Glerum_WDCA_10.pdf}},
  year = {2010},
  note = {Presented at Sixth workshop on discrete choice models, EPFL, Lausanne, Switzerland}}}

Awards

2011

Aurélie Glerum. PhD Mobility Award, Doctoral program in Civil and Environmental Engineering, EPFL.
.

2010

Aurélie Glerum. Best Masters Thesis Award, Swiss Operations Research Society.
The prize of the Best Masters Thesis in the field of Operations Research is awarded every year by the Swiss Operations Research Society. Her thesis is entitled "Markov Decision Processes for Services Opportunity Pipeline Optimization"..

Reviewing

Research projects

2012

A DYNAMIC VEHICLE CHOICE FORECASTING FRAMEWORK

The aim of this research project is to develop a dynamic model framework to forecast car demand. The model-system jointly accounts for behavioural variables (e.g. household evolution, individual motivations), institutional factors (e.g. incentives and taxation) and market features (e.g. new fuel or vehicle technology launches) to forecast vehicle acquisition. The project benefits from a large-scale, longitudinal dataset on vehicle transactions from major European markets. Methodologically the framework consists of a system of aggregate, disaggregate and duration-based choice models, accounting for dynamic features of the decision at each stage. Importantly, the proposed dynamic framework enhances realism by representing the durability of possession, rapid changes in value across product and ownership cycles and uncertainty about future market developments and institutional factors. The proposed framework sheds light on the timing and type of vehicle ownership, illustrating the benefits of taking the first steps away from a static approach. The findings will aid the prediction of consumer behaviour in response to critical policy variables, such as incentives, alongside market dynamics, such as the appearance and diffusion of novel technologies. A deeper understanding of future vehicle choice behaviour is critical given sizable institutional and industrial investments to promote alternative vehicle technologies with a final aim to improve energy efficiency in the transportation sector. More information http://transport.epfl.ch/car-market-structure
- Apr 01, 2012 - Apr 30, 2013
- Sponsor: PSA Peugeot-Citroën
- Principal investigator: Michel Bierlaire
- Project manager: Amanda Stathopoulos
- Collaborator: Aur�lie Glerum

2010

Demande de consommateurs pour des v�hicules �lectriques

Evaluation de la demande des consommateurs pour des v�hicules �lectriques en vue du lancement d'une telle gamme par Renault
- Aug 01, 2010 - Apr 30, 2011
- Sponsor: Renault Suisse SA
- Principal investigator: Michel Bierlaire
- Project manager: Micha�l Th�mans
- Collaborator: Aur�lie Glerum

2009

OPTIMA: Inferring transport mode preferences from attitudes

Swiss Post and PostBus have launched a research project to optimize mobility in cooperation with the Federal Institute of Technology in Lausanne (EPFL), represented by EPFL Transportation Center, under Professor Michel Bierlaire. This will show the market potential for combined mobility. Among other things it will look at the factors that influence travellers in their choice of transport. At a later stage, target group-specific new transport offerings and services will be developed and tested, which will have a lasting influence on this choice. The three years research project is conducted by Professors Vincent Kaufmann (LASUR) and Michel Bierlaire (TRANSP-OR).
- Feb 01, 2009 - Jun 30, 2012
- Sponsor: LaPoste
- Principal investigator: Michel Bierlaire
- Project manager: Anne Curchod
- Collaborators: Aur�lie Glerum, Bilge Atasoy, Antonin Danalet

EPFL courses

Spring 2013

Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Bilal Farooq, Jianghang Chen
- Teaching assistants: Aur�lie Glerum, Antonin Danalet
- Webpage: http://transp-or.epfl.ch/courses/OptSim2013/

Fall 2011

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Aur�lie Glerum, Antonin Danalet
- Webpage: http://transp-or.epfl.ch/courses/dca2011/

Fall 2010

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Aur�lie Glerum, Thomas Robin
- Webpage: http://transp-or.epfl.ch/dca2010/

Various lectures

2013

Estimation of Binary Choice Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 24, 2013 - Mar 28, 2013
- Lecturer: Michel Bierlaire
- Assistants: Antonin Danalet, Aur�lie Glerum
Multivariate Extreme Value Models - Sampling and Estimation.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 24, 2013 - Mar 28, 2013
- Lecturer: Michel Bierlaire
- Assistants: Antonin Danalet, Aur�lie Glerum
Mixture Models; Simulation-based Estimation.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 24, 2013 - Mar 28, 2013
- Lecturer: Michel Bierlaire
- Assistants: Antonin Danalet, Aur�lie Glerum
Specification and Estimation of Logit Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 24, 2013 - Mar 28, 2013
- Lecturer: Michel Bierlaire
- Assistants: Antonin Danalet, Aur�lie Glerum

2012

Estimation of Binary Choice Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Jan 29, 2012 - Feb 02, 2012
- Lecturer: Michel Bierlaire
- Assistants: Aur�lie Glerum, Antonin Danalet
Discrete Panel Data.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Jan 29, 2012 - Feb 02, 2012
- Lecturer: Michel Bierlaire
- Assistants: Aur�lie Glerum, Antonin Danalet
Extreme Value Models; Sampling and Estimation.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Jan 29, 2012 - Feb 02, 2012
- Lecturer: Michel Bierlaire
- Assistants: Aur�lie Glerum, Antonin Danalet
Mixture Models and simulation-based Estimation.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Jan 29, 2012 - Feb 02, 2012
- Lecturer: Michel Bierlaire
- Assistants: Aur�lie Glerum, Antonin Danalet
Specification and Estimation of Logit Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Jan 29, 2012 - Feb 02, 2012
- Lecturer: Michel Bierlaire
- Assistants: Aur�lie Glerum, Antonin Danalet

2011

Estimation of Binary Choice Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 20, 2011 - Mar 24, 2011
- Lecturer: Michel Bierlaire
- Assistants: Thomas Robin, Aur�lie Glerum
Discrete Panel Data.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 20, 2011 - Mar 24, 2011
- Lecturer: Michel Bierlaire
- Assistants: Thomas Robin, Aur�lie Glerum
Extreme Value Models; Sampling.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 20, 2011 - Mar 24, 2011
- Lecturer: Michel Bierlaire
- Assistants: Thomas Robin, Aur�lie Glerum
Mixture Models and simulation-based Estimation.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 20, 2011 - Mar 24, 2011
- Lecturer: Michel Bierlaire
- Assistants: Thomas Robin, Aur�lie Glerum
Specification and Estimation of Logit Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 20, 2011 - Mar 24, 2011
- Lecturer: Michel Bierlaire
- Assistants: Thomas Robin, Aur�lie Glerum

Master theses

2013

How perceptions affect the modal choice? A cross country comparison from a gender oriented point of view, Silvia Francesca Varotto (None)
- Supervision: Michel Bierlaire, Amanda Stathopoulos, Aurélie Glerum
- External expert:

2012

Mode choice models for the city of Nice using psychometric indicators and latent variables, My Hang Nguyen (Civil Engineering)
- Supervision: Michel Bierlaire, Ricardo Hurtubia, Aurélie Glerum
- External expert: Valérie Attas, Veolia

2011-2012

Hybrid choice models: an application to automobile demand, Lidija Stankovikj (Mathematics)
- Supervision: Michel Bierlaire, Aurélie Glerum
- External expert:

2010

Sampling of alternatives for logit mixture models, Ines Azaiez (Mathematics)
- Supervision: Michel Bierlaire, Aurélie Glerum
- External expert: Prof. Ben-Akiva, MIT

Semester projects

2013

Modelling car ownership duration, Natalie Sauerwald (Mathematics)

Supervision: Amanda Stathopoulos, Aurélie Glerum
Household vehicle ownership influences many aspects of travel demand, with pronounced impact for energy consumption, travel mode distribution, residential location patterns and city attractiveness. Despite a large number of vehicle choice models focusing on the type of car chosen, formal modelling of the timing and duration of ownership has received relatively little attention. Statistical models known as duration (hazard) models can be used to estimate the distribution of vehicle ownership lengths in a population. A central interest is to identify the determinants of the time that elapses between two automobile transactions, including characteristics of the car and household and macroeconomic/policy variables. In addition, the influence of less tangible factors such as expectations regarding the market, future vehicle launches, propensity for planning and personal aspirations may have a large impact on the timing of renewal and vehicle ownership duration. We have a large dataset available containing rich information on vehicle acquisitions and are looking for a student to collaborate on data elaboration, exploration and development of a duration model for vehicle ownership. Several assumptions for the hazard function and innovative determinants of ownership spells will be considered. The student should be familiar with management of large data, statistics/econometrics and have some notion of behavioral theories of decision-making.

2012

Transportation mode choice models including word data, Peng Cui (Mathematics)

Supervision: Aurélie Glerum
Recently, there has been an emphasis in the discrete choice literature on the introduction of attitudes and perceptions into discrete choice models. We are interested to see how these factors impact on choice. A joint work with social scientists has led to the development of new surveys which include questions on the perception of transportation modes. In the framework of a survey conducted with CarPostal, the following question was asked: "For each of the following transportation modes, indicate 3 adjectives that characterize them the best: The car is: 1)________ 2)________ 3)________ The train is: 1)________ 2)________ 3)________ etc." After this survey, a second online survey was conducted to collect information on how individuals would situate the adjectives reported in the first survey (e.g. stressful, relaxing, full, etc.) on a scale of comfort. For example, respondents were ask to rate adjective 'relaxing' on a scale from -2 to 2, with -2 indicating a total discomfort and 2 indicating a total comfort. In addition to this, they had to report some socio-economic information (languages spoken at home or work, mother tongue, level of education, etc.). This project has two goals: 1. Model of the effect of the socio-economic information of the respondents of the second survey on their ratings of the adjectives. 2. Integrate the model developed in 1. into a discrete choice model to explain the transportation mode preferences.

2011

Measuring Passenger Satisfaction using AirS@t Survey, Lidija Stankovikj (Mathematics)

Supervision: Bilge Atasoy, Aurélie Glerum
M1nd-set is an international market research agency specialized in air travel surveys and research. The company conducts regular passenger satisfaction surveys among the major fullservice airlines on different international market areas. M1nd-set manages reasonable passenger response rates and over a third of their survey is administered on business-class travelers who value passenger service. At present, AirS@t survey captures the passenger satisfaction levels for different parameters, such as waiting times for check-in, boarding and in-flight services, staff friendliness, seat comfort, in-flight entertainment, meals, etc., that are perceived to drive the overall satisfaction of flying with a particular airline company. M1nd-set uses a specific method of calculating weights of these parameters, in the order of importance, and arriving at overall airline satisfaction levels. However we see some scope in applying more advanced scientific models to this data to gain a deeper perspective on the relative significance of these parameters. In addition, it is critical to understand if higher satisfaction levels with a particular carrier are actually translating into increased demands and thus increased revenues. This could also mean that we can test the sufficiency of the currently captured parameters and if there are some additional parameters that could be silently driving the demand. M1nd-set is seeking fresh, innovative and out-of-the-box ideas to analyze the data mine at hand. They are willing to give access to the data base (under the umbrella of the enclosed NDA) to the student who brings an interesting research idea. Ideally the outcome of this research / analysis should be presented to airlines on conference(s) and/or published. This project will be composed of the following stages: 1. Understanding basic airline industry domain, various players and AirS@t survey in that perspective 2. Literature review and discussion on new ideas 3. Preliminary data analysis 4. Application of fresh methodologies for data analysis, such as using Discrete Choice Models for analysis 5. Inclusion of additional questions on the survey that could provide new insights 6. Final presentation and report Project will commence around mid February and would continue for about 4 1/2 months

Battery life modelling, François Anken (Mathematics)

Supervision: Aurélie Glerum
In a context where electric vehicles are going to be released soon on the market, a high importance is given to the analysis of the degradation of their batteries. A key aspect of this research is to identify the factors that are responsible for a fast battery degradation, in order to give drivers advices on a battery-friendly driving. The aim of the project is two-fold: 1) Refine an existing model of the state of charge of the battery, in order to identify which are the factors explaining the battery discharge and how they affect it. 2) Analyze the impact of different driving patterns and other factors on battery degradation. The student will have to get familiar with an existing battery life model owned by ZEM.

2010-2011

Integrating the latent attitudes into mode choice, Lidija Stankovikj (Mathematics)

Supervision: Bilge Atasoy, Aurélie Glerum
In the classical mode choice modeling we have the modal attributes like time and cost, and the socio-economic information as explanatory variables. However there are unobservable variables like attitudes, perceptions, lifestyle etc. which are effective in travel behavior. In this project aim is to come up with integrated choice models including these latent variables.

Analysis of Electric Vehicle Data, Parmeet Singh Bhatia

Supervision: Aurélie Glerum
The project aims to apply statistical analytics and basic mathematical techniques to analyze a unique data set of electric vehicle usage, and a cutting edge battery life model. The student will analyze the impact of different driving patterns and other factors on battery degradation � a key question facing the transportation industry today. The student will be exposed to the latest developments in mobility and electric vehicle development, and will have constant access to supervisors that will guide him / her to better understand the technical and industrial context of the project. The student will have great autonomy in choosing the mathematical and analytic techniques he/she is familiar with to run simulations, stress the data sets, and incorporate new analytical models as necessary.

Antonin Danalet

Antonin Danalet has been a member of the laboratory from Nov 01, 2009 to Dec 31, 2015

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Antonin Danalet.

Journal articles

2016

Danalet A., Tinguely L., de Lapparent M., Bierlaire M. (2016). Location choice with longitudinal WiFi data. Journal of Choice Modelling 18 :1-17

Location-aware data collection technologies provide new insights about location choices. Only a few dynamic models of location choice exist in scientific literature. To our knowledge, none of them correct for serial correlation. In this paper, we model choice of catering locations on a campus using WiFi traces. We use the [Wooldridge, J. M. (2005). Simple solutions to the initial conditions problem in dynamic, nonlinear panel data models with unobserved heterogeneity, Journal of Applied Econometrics 20(1): 39-54.] correction method that deals with the initial values problem and related endogeneity bias in estimation. Cross-validation, price elasticity and simulation of a scenario predicting the opening of a new catering location are presented. Predicted market shares of the new catering location correspond to point-of-sale data of the first week of opening.
```
@Article{DaTideLaBi15_JCM,
  author = {Antonin Danalet and Lo{\"\i}c Tinguely and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Location choice with longitudinal WiFi data},
  journal = {Journal of Choice Modelling},
  year = {2016},
  volume = {18},
  pages = {1-17},
  DOI = {10.1016/j.jocm.2016.04.003},
  note = {Accepted on Apr 12, 2016}}}
```
Holzer A., Vonèche Cardia I., Bendahan S., Berne A., Bragazza L., Danalet A., Fasoli A., Feige J., Gillet D., Isaac S., Le Duc I., Preissmann D., Tormey R. (2016). Increasing the Perspectives of Engineering Undergraduates on Societal Issues through an Interdisciplinary Program. International Journal of Engineering Education 32 (2(A)):1-11

To tackle the challenges of the 21st century, future scientists and engineers have to understand the interplay between societal challenges and technical solutions as early as possible in their education. They also have to develop the communication and the teamwork skills required to be effective professionals. To address this issue, the Ecole Polytechnique Fédérale de Lausanne (EPFL) introduced a new Global Issues program to all 1800 first year engineering students. In this paper, we present this novel program and reflect on our experience. Our results suggest that student who showed positive attitude towards teamwork, benefited the most from the course and increase their perspectives on societal issues as measured by their moral reasoning after the course.
```
@Article{GlobalIssues16,
  author = {Adrian Holzer and Isabelle {Von\`eche Cardia} and Samuel Bendahan and Alexis Berne and Luca Bragazza and Antonin Danalet and Ambrogio Fasoli and J\'er\^ome Feige and Denis Gillet and Siara Isaac and Ingrid {Le Duc} and Delphine Preissmann and Roland Tormey},
  title = {Increasing the Perspectives of Engineering Undergraduates on Societal Issues through an Interdisciplinary Program},
  journal = {International Journal of Engineering Education},
  year = {2016},
  volume = {32},
  number = {2(A)},
  pages = {1-11},
  note = {Accepted on Jan 09, 2016}}}
```

2014

Danalet A., Farooq B., Bierlaire M. (2014). A Bayesian Approach to Detect Pedestrian Destination-Sequences from WiFi Signatures. Transportation Research Part C: Emerging Technologies 44 :146 - 170

In this paper, we propose a methodology to use the communication network infrastructure, in particular WiFi traces, to detect the sequence of activity episodes visited by pedestrians. Due to the poor quality of WiFi localization, a probabilistic method is proposed that infers activity-episode locations based on WiFi traces and calculates the likelihood of observing these traces in the pedestrian network, taking into account prior knowledge. The output of the method consists of candidates of activity-episodes sequences associated with the likelihood to be the true one. The methodology is validated on traces generated by a known sequence of activities, while the performance being evaluated on a set of anonymous users. Results show that it is possible to predict the number of episodes and the activity-episodes locations and durations, by merging information about the activity locations on the map, WiFi measurements and prior information about schedules and the attractivity in pedestrian infrastructure. The ambiguity of each activity episode in the sequence is explicitly measured.
```
@Article{DanaletFarooqBierlaire_2014,
  author = {Antonin Danalet and Bilal Farooq and Michel Bierlaire},
  title = {A Bayesian Approach to Detect Pedestrian Destination-Sequences from WiFi Signatures},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2014},
  volume = {44},
  pages = {146 - 170},
  DOI = {10.1016/j.trc.2014.03.015},
  note = {Accepted on Mar 26, 2014}}}
```

Book chapters

2017

Danalet A., Audikana A. (2017) Le péage urbain modifie-t-il les comportements de mobilité?. In Bierlaire M., Kaufmann V. and Rérat P. (ed) La mobilité en questions, Presses Polytechniques et Universitaires Romandes (PPUR) , Lausanne, Suisse [ISBN 978-2-88915-172-1]


@InProceedings{DanaAudi_2017,
  author = {Antonin Danalet and Ander Audikana},
  title = {Le p\'eage urbain modifie-t-il les comportements de mobilit\'e?},
  year = {2017},
  booktile = {La mobilit\'e en questions},
  editor = {Bierlaire M. and  Kaufmann V. and R\'erat P.},
  publisher = {Presses Polytechniques et Universitaires Romandes (PPUR)},
  address = {Lausanne, Suisse},
  pages = {55-70}}}

2014


@InProceedings{DanaletBierlaireFarooqPED2012,
  author = {Antonin Danalet and Michel Bierlaire and Bilal Farooq},
  title = {Estimating Pedestrian Destinations Using Traces from WiFi Infrastructures},
  year = {2014},
  booktile = {Pedestrian and Evacuation Dynamics 2012},
  editor = {U. Weidmann and  U. Kirsch and M. Schreckenberg},
  publisher = {Springer International Publishing},
  pages = {1341-1352}}}

Technical reports

2015

Danalet A., Tinguely L., de Lapparent M., Bierlaire M. (2015). Location choice with longitudinal WiFi data. Report TRANSP-OR 151110


@TechReport{DaTideLaBi15,
  author = {Antonin Danalet and Lo{\"\i}c Tinguely and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Location choice with longitudinal WiFi data},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2015},
  type = {Technical Report},
  number = {TRANSP-OR 151110},
  address = {Lausanne, Switzerland}}}

2013

Danalet A., Farooq B., Bierlaire M. (2013). A Bayesian Approach to Detect Pedestrian Destination-Sequences from WiFi Signatures. Report TRANSP-OR 131002


@TechReport{Danaletetal_WiFi,
  author = {Antonin Danalet and Bilal Farooq and Michel Bierlaire},
  title = {A Bayesian Approach to Detect Pedestrian Destination-Sequences from WiFi Signatures},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2013},
  type = {Technical Report},
  number = {TRANSP-OR 131002},
  address = {Lausanne, Switzerland}}}

2012

Schuler M., Faure P., Munafò S., Danalet A., Dessemontet P. (2012). Projektstudie �ber den kombinierten Verkehr : Verbesserung der Dienstleistungsqualit�t und Entwicklung der Fahrgastzahlen bei PostAuto. Report TRANSP-OR 121201


@TechReport{Optima_entwicklung_2012,
  author = {Martin Schuler and Prisca Faure and S\'ebastien Munaf\`o and Antonin Danalet and Pierre Dessemontet},
  title = {Projektstudie \"uber den kombinierten Verkehr : Verbesserung der Dienstleistungsqualit\"at und Entwicklung der Fahrgastzahlen bei PostAuto},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2012},
  type = {Technical Report},
  number = {TRANSP-OR 121201},
  address = {Lausanne, Switzerland}}}

Schuler M., Faure P., Munafò S., Danalet A., Dessemontet P. (2012). Am�lioration de la qualit� de service et �volution de la fr�quentation de CarPostal. Report TRANSP-OR 121130


@TechReport{Optima_frequ_2012,
  author = {Martin Schuler and Prisca Faure and S\'ebastien Munaf\`o and Antonin Danalet and Pierre Dessemontet},
  title = {Am\'elioration de la qualit\'e de service et \'evolution de la fr\'equentation de CarPostal},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2012},
  type = {Technical Report},
  number = {TRANSP-OR 121130},
  address = {Lausanne, Switzerland}}}

Danalet A., Sahaleh S. (2012). Projet de recherche sur la mobilit� combin�e : Rapport de l'enqu�te de pr�f�rences d�clar�es. Report TRANSP-OR 120315


@TechReport{OptimaSP2012,
  author = {Antonin Danalet and Sohrab Sahaleh},
  title = {Projet de recherche sur la mobilit\'e combin\'ee : Rapport de l'enqu\^ete de pr\'ef\'erences d\'eclar\'ees},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2012},
  type = {Technical Report},
  number = {TRANSP-OR 120315},
  address = {Lausanne, Switzerland}}}

2011


@TechReport{OptimaRP2011,
  author = {Michel Bierlaire and Anne Curchod and Antonin Danalet and Etienne Doyen and Prisca Faure and Aur\'elie Glerum and Vincent Kaufmann and Kamila Tabaka and Martin Schuler},
  title = {Projet de recherche sur la mobilit\'e combin\'ee, Rapport d\'efinitif de l'enqu\^ete de pr\'ef\'erences r\'ev\'el\'ees},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2011},
  type = {Technical Report},
  number = {TRANSP-OR 110704},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2015

Danalet A., Bierlaire M. (2015) Importance sampling for activity path choice. Proceedings of the 15th Swiss Transport Research Conference (STRC), April 15-17, Monte Verit�, Ascona, Switzerland


@InProceedings{DanBie_STRC2015,
  author = {Antonin Danalet and Michel Bierlaire},
  title = {Importance sampling for activity path choice},
  booktime = {Proceedings of the 15th Swiss Transport Research Conference (STRC), April 15-17},
  year = {2015},
  address = {Monte Verit\`a, Ascona, Switzerland}}}


@InProceedings{TDdLB15,
  author = {Lo{\"\i}c Tinguely and Antonin Danalet and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Destination Choice Model including a panel effect using WiFi localization in a pedestrian facility},
  booktime = {Proceedings of the 15th Swiss Transport Research Conference (STRC), April 15-17},
  year = {2015},
  address = {Monte Verit\`a, Ascona, Switzerland}}}

2014

Danalet A., Bierlaire M. (2014) A path choice approach to activity modeling with a pedestrian case study. Proceedings of the 14th Swiss Transport Research Conference (STRC), May 14-16, Monte Verit�, Ascona, Switzerland


@InProceedings{DanBie_STRC2014,
  author = {Antonin Danalet and Michel Bierlaire},
  title = {A path choice approach to activity modeling with a pedestrian case study},
  booktime = {Proceedings of the 14th Swiss Transport Research Conference (STRC), May 14-16},
  year = {2014},
  address = {Monte Verit\`a, Ascona, Switzerland}}}

2013


@InProceedings{Danalet_Farooq_STRC13v2,
  author = {Antonin Danalet and Bilal Farooq and Michel Bierlaire},
  title = {Towards an activity-based model for pedestrian facilities},
  booktime = {Proceedings of the 13th Swiss Transport Research Conference (STRC), April 24-26},
  year = {2013},
  address = {Monte Verit\`a, Ascona, Switerland}}}

2012


@InProceedings{SahBie_STRC_2012,
  author = {Sohrab Sahaleh and Michel Bierlaire and Bilal Farooq and Antonin Danalet and Flurin H\"anseler},
  title = {Scenario Analysis of Pedestrian Flow in Public Spaces},
  booktime = {Proceedings of the 12th Swiss Transport Research Conference (STRC), May 2-4},
  year = {2012},
  address = {Monte Verit\`a, Ascona, Switzerland}}}

Talks

2016

Danalet A. Zielwahl von Fussg�ngern anhand von WiFi-Daten November 17, 2016. Bundesamt für Raumentwicklung (ARE), , Bern, Switzerland.


@Misc{Danalet17_Bern,
  author = {Antonin Danalet},
  title = {Zielwahl von Fussg\"angern anhand von WiFi-Daten},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Danalet17_Bern.pdf}},
  year = {2016},
  note = {Presented at Bundesamt f\ür Raumentwicklung (ARE), , Bern, Switzerland}}}

2015

Danalet A. Mod�lisation du choix d'activit� pour les infrastructures pi�tonnes December 04, 2015. Ma thèse en slides, EPFL, Lausanne, Switzerland.


@Misc{these_danalet,
  author = {Antonin Danalet},
  title = {Mod\'elisation du choix d'activit\'e pour les infrastructures pi\'etonnes},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/these_danalet.pdf}},
  year = {2015},
  note = {Presented at Ma th\èse en slides, EPFL, Lausanne, Switzerland}}}

Danalet A. Pas si "bad", le "Big data" November 18, 2015. Cafés scientifiques UniNE, Université de Neuchâtel (UniNE), Neuchâtel.


@Misc{UniNeBigData,
  author = {Antonin Danalet},
  title = {Pas si ''bad'', le ''Big data''},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/UniNeBigData.pdf}},
  year = {2015},
  note = {Presented at Caf\és scientifiques UniNE, Universit\é de Neuch\âtel (UniNE), Neuch\âtel}}}

Danalet A. My thesis in slides October 13, 2015. PhD thesis Oral Exam, EPFL, Lausanne, Switzerland.


@Misc{Danalet_PhD_thesis,
  author = {Antonin Danalet},
  title = {My thesis in slides},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Danalet_PhD_thesis.pdf}},
  year = {2015},
  note = {Presented at PhD thesis Oral Exam, EPFL, Lausanne, Switzerland}}}

Danalet A. Table ronde "Le lancement de projets partageant des donn�es et des informations entre services publics et priv�s: d�fis et opportunit�" September 23, 2015. Smart City 2015, Innobridge Services, Swiss Tech Convention Center (STCC).


@Misc{SC15IB,
  author = {Antonin Danalet},
  title = {Table ronde ''Le lancement de projets partageant des donn\'ees et des informations entre services publics et priv\'es: d\'efis et opportunit\'e''},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/SC15IB.pdf}},
  year = {2015},
  note = {Presented at Smart City 2015, Innobridge Services, Swiss Tech Convention Center (STCC)}}}

Danalet A., Tinguely L., de Lapparent M., Bierlaire M. Destination choice with longitudinal data September 10, 2015. 4th Symposium of the European Association for Research in Transportation (hEART 2015), Technical University of Denmark (DTU), Copenhagen, Denmark.


@Misc{Danalet_hEART15,
  author = {Antonin Danalet and Lo{\"\i}c Tinguely and Matthieu {de Lapparent} and Michel Bierlaire},
  title = {Destination choice with longitudinal data},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Danalet_hEART15.pdf}},
  year = {2015},
  note = {Presented at 4th Symposium of the European Association for Research in Transportation (hEART 2015), Technical University of Denmark (DTU), Copenhagen, Denmark}}}

Danalet A., Bierlaire M. The activity path approach to activity pattern modeling July 20, 2015. 14th International Conference on Travel Behaviour Research, Beaumont Estate, Windsor.


@Misc{Danalet_IATBR15,
  author = {Antonin Danalet and Michel Bierlaire},
  title = {The activity path approach to activity pattern modeling},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Danalet_IATBR15.pdf}},
  year = {2015},
  note = {Presented at 14th International Conference on Travel Behaviour Research, Beaumont Estate, Windsor}}}

Danalet A., Bierlaire M. Activity path size for correlation between activity paths May 29, 2015. Tenth Workshop on Discrete Choice Models, EPFL, Lausanne, Switzerland.


@Misc{Danalet_DCAws15,
  author = {Antonin Danalet and Michel Bierlaire},
  title = {Activity path size for correlation between activity paths},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Danalet_DCAws15.pdf}},
  year = {2015},
  note = {Presented at Tenth Workshop on Discrete Choice Models, EPFL, Lausanne, Switzerland}}}

Danalet A., Bierlaire M. Importance sampling for activity path choice April 15, 2015. 15th Swiss Transport Research Conference (STRC), Monte Verità, Ascona, Switzerland.


@Misc{DanBierSTRC15,
  author = {Antonin Danalet and Michel Bierlaire},
  title = {Importance sampling for activity path choice},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/DanBierSTRC15.pdf}},
  year = {2015},
  note = {Presented at 15th Swiss Transport Research Conference (STRC), Monte Verit\à, Ascona, Switzerland}}}

2014

Danalet A., Bierlaire M. Activity choice modeling for pedestrian facilities: Validation on synthetic data September 11, 2014. 3nd Symposium of the European Association for Research in Transportation (hEART) 2014, Institute for Transport Studies, University of Leeds, Leeds, United Kingdom.


@Misc{Danalet_hEART14,
  author = {Antonin Danalet and Michel Bierlaire},
  title = {Activity choice modeling for pedestrian facilities: Validation on synthetic data},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Danalet_hEART14.pdf}},
  year = {2014},
  note = {Presented at 3nd Symposium of the European Association for Research in Transportation (hEART) 2014, Institute for Transport Studies, University of Leeds, Leeds, United Kingdom}}}

Danalet A. Activity choice in pedestrian facilities July 09, 2014. Students from the Honor Program of Eindhoven visiting EPFL, EPFL, Lausanne, Switzerland.


@Misc{TUEindhoven,
  author = {Antonin Danalet},
  title = {Activity choice in pedestrian facilities},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/TUEindhoven.pdf}},
  year = {2014},
  note = {Presented at Students from the Honor Program of Eindhoven visiting EPFL, EPFL, Lausanne, Switzerland}}}

Danalet A., Bierlaire M. Choice set generation for activities using importance sampling June 19, 2014. Ninth Workshop on Discrete Choice Models, Lausanne, Switzerland.


@Misc{Danalet_DCAws14,
  author = {Antonin Danalet and Michel Bierlaire},
  title = {Choice set generation for activities using importance sampling},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Danalet_DCAws14.pdf}},
  year = {2014},
  note = {Presented at Ninth Workshop on Discrete Choice Models, Lausanne, Switzerland}}}

Danalet A., Nikolic M., Hänseler F., Bierlaire M. Les comportements pi�tons dans les p�les d'�change intermodaux : Une collaboration avec les CFF June 16, 2014. Visite délégation AQTIM Québec, Transportation Center (TraCE), EPFL, Lausanne, Switzerland.


@Misc{AQTIM,
  author = {Antonin Danalet and Marija Nikolic and Flurin H\"anseler and Michel Bierlaire},
  title = {Les comportements pi\'etons dans les p\^oles d'\'echange intermodaux : Une collaboration avec les CFF},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/AQTIM.pdf}},
  year = {2014},
  note = {Presented at Visite d\él\égation AQTIM Qu\ébec, Transportation Center (TraCE), EPFL, Lausanne, Switzerland}}}

Danalet A., Bierlaire M. Activity pattern modeling: A path choice approach May 15, 2014. 14th Swiss Transport Research Conference (STRC), Monte Verità, Ascona, Switzerland.


@Misc{STRC_danalet_2014,
  author = {Antonin Danalet and Michel Bierlaire},
  title = {Activity pattern modeling: A path choice approach},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/STRC_danalet_2014.pdf}},
  year = {2014},
  note = {Presented at 14th Swiss Transport Research Conference (STRC), Monte Verit\à, Ascona, Switzerland}}}

Danalet A. WiFi-Based Marauder's Map, or where are members of a campus and why? April 11, 2014. Workshop on pedestrian models 2014, EPFL, Lausanne, Switzerland.


@Misc{Danalet_PEDws14,
  author = {Antonin Danalet},
  title = {WiFi-Based Marauder's Map, or where are members of a campus and why?},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Danalet_PEDws14.pdf}},
  year = {2014},
  note = {Presented at Workshop on pedestrian models 2014, EPFL, Lausanne, Switzerland}}}

2013

Danalet A. A path choice approach to activity modeling with a pedestrian case study November 05, 2013. Workshop "Statistique, transport et activités", Laboratoire Jean Kuntzmann (équipe Mistis) & GAEL (Laboratoire d'Economie Appliquée de Grenoble), Grenoble, France.


@Misc{danalet_grenoble,
  author = {Antonin Danalet},
  title = {A path choice approach to activity modeling with a pedestrian case study},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/danalet_grenoble.pdf}},
  year = {2013},
  note = {Presented at Workshop \"Statistique, transport et activit\és\", Laboratoire Jean Kuntzmann (\équipe Mistis) \& GAEL (Laboratoire d'Economie Appliqu\ée de Grenoble), Grenoble, France}}}

Danalet A., Bierlaire M., Farooq B. A Pedestrian Destination-Chain Choice Model from Bayesian Estimation of Pedestrian Activities using Sensors Data September 05, 2013. 2nd Symposium of the European Association for Research in Transportation (hEART 2013), Stockholm, Sweden.


@Misc{hEART_danalet_2013,
  author = {Antonin Danalet and Michel Bierlaire and Bilal Farooq},
  title = {A Pedestrian Destination-Chain Choice Model from Bayesian Estimation of Pedestrian Activities using Sensors Data},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/hEART_danalet_2013.pdf}},
  year = {2013},
  note = {Presented at 2nd Symposium of the European Association for Research in Transportation (hEART 2013), Stockholm, Sweden}}}

Danalet A., Farooq B., Bierlaire M. A Bayesian Approach to Detect Pedestrian Destination-Sequences from WiFi Signatures June 10, 2013. Eighth Triennial Symposium on Transportation Analysis (TRISTAN VIII), San Pedro de Atacama, Chile.


@Misc{TRISTAN_danalet_2013,
  author = {Antonin Danalet and Bilal Farooq and Michel Bierlaire},
  title = {A Bayesian Approach to Detect Pedestrian Destination-Sequences from WiFi Signatures},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/TRISTAN_danalet_2013.pdf}},
  year = {2013},
  note = {Presented at Eighth Triennial Symposium on Transportation Analysis (TRISTAN VIII), San Pedro de Atacama, Chile}}}

Danalet A., Farooq B., Bierlaire M. Revealed preference data from WiFi traces for pedestrian activity scheduling May 30, 2013. Eighth Workshop on Discrete Choice Models, EPFL, Lausanne, Switzerland.


@Misc{Danalet_DCAworkshop,
  author = {Antonin Danalet and Bilal Farooq and Michel Bierlaire},
  title = {Revealed preference data from WiFi traces for pedestrian activity scheduling},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Danalet_DCAworkshop.pdf}},
  year = {2013},
  note = {Presented at Eighth Workshop on Discrete Choice Models, EPFL, Lausanne, Switzerland}}}

Danalet A., Farooq B., Bierlaire M. Towards an activity-based model for pedestrian facilities April 25, 2013. 13th Swiss Transport Research Conference (STRC), Monte Verità, Ascona, Switzerland.


@Misc{danalet_STRC13_print,
  author = {Antonin Danalet and Bilal Farooq and Michel Bierlaire},
  title = {Towards an activity-based model for pedestrian facilities},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/danalet_STRC13_print.pdf}},
  year = {2013},
  note = {Presented at 13th Swiss Transport Research Conference (STRC), Monte Verit\à, Ascona, Switzerland}}}

Danalet A. Detecting pedestrian destinations from ubiquitous digital footprint January 22, 2013. FCL-Talk, Future Cities Laboratory (FCL), ValueLab Asia, CREATE Tower, Singapore.


@Misc{FCL-Talk_danalet,
  author = {Antonin Danalet},
  title = {Detecting pedestrian destinations from ubiquitous digital footprint},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/FCL-Talk_danalet.pdf}},
  year = {2013},
  note = {Presented at FCL-Talk, Future Cities Laboratory (FCL), ValueLab Asia, CREATE Tower, Singapore}}}

2012

Danalet A., Farooq B., Bierlaire M. Estimating Pedestrian Activities from Digital Footprints September 05, 2012. Latsis Symposium 2012: 1st European Symposium on Quantitative Methods in Transportation Systems, Lausanne, Switzerland.


@Misc{LATSIS_Danalet_2012,
  author = {Antonin Danalet and Bilal Farooq and Michel Bierlaire},
  title = {Estimating Pedestrian Activities from Digital Footprints},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/LATSIS_Danalet_2012.pdf}},
  year = {2012},
  note = {Presented at Latsis Symposium 2012: 1st European Symposium on Quantitative Methods in Transportation Systems, Lausanne, Switzerland}}}

Danalet A., Bierlaire M., Farooq B. Preliminary Exploration of Pedestrian Destinations using Traces from WiFi Infrastructures May 03, 2012. 12th Swiss Transport Research Conference (STRC), Monte Verità, Ascona, Switzerland.


@Misc{STRC_Danalet_2012,
  author = {Antonin Danalet and Michel Bierlaire and Bilal Farooq},
  title = {Preliminary Exploration of Pedestrian Destinations using Traces from WiFi Infrastructures},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/STRC_Danalet_2012.pdf}},
  year = {2012},
  note = {Presented at 12th Swiss Transport Research Conference (STRC), Monte Verit\à, Ascona, Switzerland}}}

2011

Thémans M., Danalet A. Interactions complexes entre infrastructures et pi�tons: tracking et mod�lisation comportementale des flux pi�tonniers dans les secteurs des gares September 01, 2011. Planification et construction dans les secteurs ferroviaires, Association suisse pour l'aménagement national VLP-ASPAN, Genève.


@Misc{DANALET-ASPAN2011,
  author = {Micha\"el Th\'emans and Antonin Danalet},
  title = {Interactions complexes entre infrastructures et pi\'etons: tracking et mod\'elisation comportementale des flux pi\'etonniers dans les secteurs des gares},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/DANALET-ASPAN2011.pdf}},
  year = {2011},
  note = {Presented at Planification et construction dans les secteurs ferroviaires, Association suisse pour l'am\énagement national VLP-ASPAN, Gen\ève}}}

Danalet A. Optima: When flexible transport is able to meet a dispersed demand throughout the whole territory June 17, 2011. TraCE Research Day 2011, EPFL, Lausanne, Switzerland.


@Misc{DANALET-TRD2011,
  author = {Antonin Danalet},
  title = {Optima: When flexible transport is able to meet a dispersed demand throughout the whole territory},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/DANALET-TRD2011.pdf}},
  year = {2011},
  note = {Presented at TraCE Research Day 2011, EPFL, Lausanne, Switzerland}}}

Awards

2015

Antonin Danalet. Second Prize in the Image category of the 2015 ACCES Visualization Contest.
Computed-generated visualization of scientific and engineering data, whether originating from numerical simulation or experimentation, can convey important technical information but also reveal original and sometimes surprising visual aspects. The ACCES Visualization Contest is aimed at fostering interest in the use of visualization by encouraging the insightful and visually-engaging presentation of scientific and engineering data. The contest is open annually for contributions from students and post-docs within the School of Engineering (STI) and the School of Architecture, Civil & Environmental Engineering (ENAC) of the Ecole Polytechnique F�d�rale de Lausanne (EPFL). A total of 55 entries were submitted to the 2015 ACCES Visualization Contest, 35 in the Image category and 20 in the Animation category..

2013

Antonin Danalet. ENAC Research Day 2013 Doctoral poster award - 3rd prize, School of Architecture, Civil and Environmental Engineering, EPFL.
The Research Commission of the School of Architecture, Civil and Environmental Engineering (ENAC) has organized a poster competition for doctoral students in the context of the 2013 Research Day. The selection procedure, led by the ENAC Research Commission, consisted in selecting around thirty projects based on submitted project abstracts. Accepted projects were exhibited at the Research Day and participated in the poster competition. Antonin Danalet's poster, about bayesian estimation of pedestrian activities using sensors data, won the 3rd prize..
Antonin Danalet. Invited participation in Global Young Scientist Summit, shortlisted for the Singapore Challenge, Singapore National Research Foundation (NRF).
Invited to the 2013 Global Young Scientist Summit (GYSS) in Singapore, attended by internationally eminent scientists and technology leaders, including ten Nobel prize winners and a Fields medalist. Shortlisted for the Singapore Challenge 2013 "Innovation for Future Cities" about envisioning opportunities for sustainable development in cities with dense populations and heavy demands on infrastructure, with a white paper on Walkable Future Cities..

Reviewing

Computers, Environment and Urban Systems (6)
IEEE Transactions on Intelligent Transportation Systems (2)
Journal of Choice Modelling (2)
Transportation (2)
Transportation Research Record (2)
IET Intelligent Transport Systems (1)
Transportmetrica (1)

Research projects

2012

Pedestrian dynamics: flows and behavior

This project aims at developing mathematical models of pedestrian dynamics, both at aggregate and disaggregate levels. Integrated and holistic mathematical models will handle the complexity of this unique transport mode and help us to answer open research questions. in the future, such foundations will also allow to create the tools society needs to better understand pedestrian dynamics.
- Apr 01, 2012 - Mar 31, 2015
- Sponsor: Swiss National Science Foundation
- Principal investigator: Michel Bierlaire
- Project managers: Bilal Farooq, Riccardo Scarinci
- Collaborators: Antonin Danalet, Flurin H�nseler, Marija Nikolic

2011

L�man 2030: Flux pi�tons Gare de Lausanne

In the framework of a 9-month collaboration with CFF, pedestrian flows in Lausanne train station are estimated and modeled. Specifically, an estimation methodology for pedestrian origin-destination demand is developed and applied to predict a demand scenario for 2030. By means of a pedestrian flow simulator, several infrastructure scenarios are quantitatively evaluated, the result of which helps CFF to design and dimension pedestrian underpasses of Gare de Lausanne for the future.
- Oct 01, 2011 - Jul 15, 2012
- Sponsor: Swiss Federal Railways (SBB)
- Principal investigator: Michel Bierlaire
- Project managers: Micha�l Th�mans, Bilal Farooq
- Collaborators: Flurin H�nseler, Antonin Danalet, Sohrab Sahaleh
SIEU : Urban Energy Information System

The role of local authorities in reaching climate and energy goals is important. Consolidated data about energy at the local scale is necessary in order to fully measure the effects of policies and to adapt action-plans. The goal of this project is to evaluate the feasibility of a single platform with all the relevant energy data for a local authority, in particular statistics about mobility.
- Sep 01, 2011 - Jun 30, 2012
- Sponsor: The Ark Energy
- Principal investigator: Michel Bierlaire
- Project manager: Antonin Danalet
- Collaborator: Antonin Danalet

2010

SURPRICE: Sustainable mobility through road user charging

Equity effects of congestion charges and intra-individual variation in preferences. A joint research initiative between: Royal Institute of Technology (KTH), Sweden (lead), The Swiss Federal Institute of Technology, Z�rich, Switzerland and Ecole Polytechnique Federale de Lausanne (EPFL), Switzerland
- Jul 05, 2010 - Oct 03, 2011
- Sponsor: Swiss Federal Road Office
- Principal investigator: Michel Bierlaire
- Project manager: Michel Bierlaire
- Collaborator: Antonin Danalet

2009

OPTIMA: Inferring transport mode preferences from attitudes

Swiss Post and PostBus have launched a research project to optimize mobility in cooperation with the Federal Institute of Technology in Lausanne (EPFL), represented by EPFL Transportation Center, under Professor Michel Bierlaire. This will show the market potential for combined mobility. Among other things it will look at the factors that influence travellers in their choice of transport. At a later stage, target group-specific new transport offerings and services will be developed and tested, which will have a lasting influence on this choice. The three years research project is conducted by Professors Vincent Kaufmann (LASUR) and Michel Bierlaire (TRANSP-OR).
- Feb 01, 2009 - Jun 30, 2012
- Sponsor: LaPoste
- Principal investigator: Michel Bierlaire
- Project manager: Anne Curchod
- Collaborators: Aur�lie Glerum, Bilge Atasoy, Antonin Danalet

EPFL courses

Spring 2015

Semaine ENAC "Le pi�ton vecteur d'urbanit�".
- Level: Bachelor
- Sections: Environmental Sciences and Engineering, Architecture, Civil Engineering
- Lecturer: Antonin Danalet
- Webpage: http://moodle.epfl.ch/enrol/index.php?id=7401

Spring 2014

Enjeux mondiaux.
- Level: Bachelor
- Section: All sections
- Lecturer: Michel Bierlaire
- Teaching assistants: Stefan Binder, Antonin Danalet
- Webpage: http://moodle.epfl.ch/course/view.php?id=13982

Spring 2013

Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Bilal Farooq, Jianghang Chen
- Teaching assistants: Aur�lie Glerum, Antonin Danalet
- Webpage: http://transp-or.epfl.ch/courses/OptSim2013/

Fall 2012

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Antonin Danalet, Amanda Stathopoulos
- Webpage: http://transp-or.epfl.ch/courses/dca2012/

Fall 2011

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Aur�lie Glerum, Antonin Danalet
- Webpage: http://transp-or.epfl.ch/courses/dca2011/

Various lectures

2015

Collaborative writing : method, tools.
- From Research to Publication, Module 2: Empower your writing process, EPFL
- Nov 03, 2015
- Lecturer: Antonin Danalet
Les comportements pi�tons, Approches quantitatives.
- Semaine ENAC "Le pi�ton vecteur d'urbanit�", EPFL, Lausanne, Switzerland
- Apr 21, 2015 - Apr 21, 2015
- Lecturer: Antonin Danalet
Optima: Mode choice in Switzerland.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 25, 2015
- Lecturer: Antonin Danalet
Le p�age urbain - en Suisse et � Stockholm.
- Enjeux mondiaux : Mobilit� A, EPFL, Lausanne
- Mar 10, 2015
- Lecturer: Antonin Danalet

2014

Le p�age urbain.
- Enjeux mondiaux : mobilit� A+B, EPFL, Lausanne
- Mar 11, 2014
- Lecturer: Antonin Danalet

2013

Estimation of Binary Choice Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 24, 2013 - Mar 28, 2013
- Lecturer: Michel Bierlaire
- Assistants: Antonin Danalet, Aur�lie Glerum
Multivariate Extreme Value Models - Sampling and Estimation.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 24, 2013 - Mar 28, 2013
- Lecturer: Michel Bierlaire
- Assistants: Antonin Danalet, Aur�lie Glerum
Mixture Models; Simulation-based Estimation.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 24, 2013 - Mar 28, 2013
- Lecturer: Michel Bierlaire
- Assistants: Antonin Danalet, Aur�lie Glerum
Specification and Estimation of Logit Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 24, 2013 - Mar 28, 2013
- Lecturer: Michel Bierlaire
- Assistants: Antonin Danalet, Aur�lie Glerum

2012

Estimation of Binary Choice Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Jan 29, 2012 - Feb 02, 2012
- Lecturer: Michel Bierlaire
- Assistants: Aur�lie Glerum, Antonin Danalet
Discrete Panel Data.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Jan 29, 2012 - Feb 02, 2012
- Lecturer: Michel Bierlaire
- Assistants: Aur�lie Glerum, Antonin Danalet
Extreme Value Models; Sampling and Estimation.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Jan 29, 2012 - Feb 02, 2012
- Lecturer: Michel Bierlaire
- Assistants: Aur�lie Glerum, Antonin Danalet
Mixture Models and simulation-based Estimation.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Jan 29, 2012 - Feb 02, 2012
- Lecturer: Michel Bierlaire
- Assistants: Aur�lie Glerum, Antonin Danalet
Specification and Estimation of Logit Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Jan 29, 2012 - Feb 02, 2012
- Lecturer: Michel Bierlaire
- Assistants: Aur�lie Glerum, Antonin Danalet

Master theses

2015

Exploiting pedestrian WiFi traces for destination choice modeling, Loïc Tinguely (Civil Engineering)
- Supervision: Antonin Danalet, Matthieu de Lapparent, Michel Bierlaire
- External expert: Andres Sevtsuk

2014

Individual activity-travel analysis based on smartphone WiFi data, Amélie Buisson (Civil Engineering)
- Supervision: Evanthia Kazagli, Antonin Danalet
- External expert: Dr Francisco Pereira

2011-2012

Pedestrian flow simulation and optimization in transportation hubs (case study), Sohrab Sahaleh (Civil Engineering)
- Supervision: Michel Bierlaire, Bilal Farooq, Antonin Danalet
- External expert: Prof. Winnie Daamen

Semester projects

2014

A destination choice model for EPFL Campus, Loïc Tinguely (Civil Engineering)

Supervision: Antonin Danalet, Matthieu de Lapparent
Based on WiFi traces from access points, the goal of this semester project consists in developing binary discrete choice models for the choice of attending classes.

A two-step approach for estimating pedestrian demand in a congested network, Eduard Rojas (Computer science)

Supervision: Flurin Hänseler, Antonin Danalet, Michel Bierlaire

2013-2014

Identify User’s Locations of Interest from Smartphone WiFi Data, Amélie Buisson (GC) (Civil Engineering)

Supervision: Evanthia Kazagli, Antonin Danalet, Michel Bierlaire
Smartphone is a powerful and convenient tool for collecting a variety of data (location, social interaction, and more) that can be useful for individual mobility analysis. Most of the ongoing research relies on GPS to acquire accurate location. GPS though is expensive in terms of battery consumption. In addition, the GPS sensor embedded in mobile phones fail in practice more often than dedicated GPS devices. Yet, smartphones are endowed with multiple sensors from which location can be inferred. Wifi sensors provide stable indoor location data and have been identified as a potential alter- native to indicate location that can well serve in addition and complementary to GPS data to advance mobility learning. The location extraction from Wi-fi records permits the detection of users� regular places of visit, the frequency and intensity (number of times) of visiting these places, as well as patterns such as the time of day and duration of visit. This kind of information is relevant for the identification of activity locations making use of clustering techniques, and after further analysis they can support measuring the activity space and intensity of activity participation of the user. By fusing the information about activity locations with land use and points of interest (POI) data, as well as with more data acquired from the smartphone sensors (e.g. phone status, Bluetooth, charging, phone interaction etc.), and taking into account temporal dimensions, it is then possible to infer the type of activity at these location (including home and work locations) and subsequently trip/ activity purposes can be disclosed. In addition to the above, and building on the identification of meaningful clusters, WiFi data have the potential to assist the identification of origins and destinations of trips (often missing in case of GPS). This information can then be used for improving and validating trip detection algorithms, which currently appear to be problematic and hence introduce biases in the subsequent stage of map-matching (e.g. one a known trip is segmented in several due to the limitations of the algorithm and GPS data). This project aims at exploiting the advantages of the WiFi data discussed above for individual mobility analysis.

2013

Activities in Paléo Music Festival from Bluetooth, Elisaveta Kondratieva (Communication Systems)

Supervision: Antonin Danalet
Can we guess the activities of spectators in a music festival from Bluetooth traces collected from 10 people with smartphones used as antennas? This project will study an existing dataset and existing map data from Pal�o music festival in Nyon, Switzerland. Depending on the results, the report will either draw conclusions about spectators' behavior, or recommend other data collection specifications for this particular case study. For more information, don't hesitate to contact the assistant of the project.

Visualization of pedestrian demand in a 3D graph, Javier Lopez-Montenegro Ramil (Computer science)

Supervision: Antonin Danalet, Bilal Farooq
This project aims at visualizing flows in a pedestrian graph in 3D. The graph is coded as a postGIS database (postgresql). The goal consists in representing the density at each node and eventually the flows between the nodes (data coming from our own algorithm). The visualization needs to be both in 3D and in 2D for printing. An IC student would ideally fit the goal of this project. The first step would be to compare the pros and cons of <a href="http://processing.org/">Processing</a> and Google <a href="https://maps.google.com/">Map</a>/<a href="www.google.com/earth/index.html">Earth</a>. Then it would consists in visualizing the pedestrian graph in the chosen tool. As a final step, the student will include density data of signals (without treatment) and the results of our algorithm in the map (treated data) and generate final maps and animations from data. As an inspiration of how it could possibly look like <a href="http://youtu.be/I17_nuPiJI4">this</a> (but with pedestrian as dots instead of trains)

2012-2013

Dynamic estimation of pedestrian origin-destination within train stations: Exploitation of pedestrian tracking data and comparison to travel surveys, Maëlle Zimmermann (Mathematics)

Supervision: Flurin Hänseler, Antonin Danalet
OD demand will be estimated dynamically (i.e., as a function of time) based on observed pedestrian trajectories. Key in this process is a diligent choice of origins/destinations and their cordons, as well as a smart handling of �lost� pedestrians, i.e., people of which the algorithm looses track due to overcrowding or bad light conditions. Another challenge is finding a way to deal with multi-destination trips. For instance, a person entering a train station which goes to a ticket vending machine before boarding a train falls into this category. To help us tackle these issues, VisioSafe grants us access to some of their codes such that we can see how they have solved similar problems. Besides developing an OD estimation algorithm based on tracking data, visualization of OD demand is an important part of this thesis. Furthermore, it might be interesting to investigate how the estimated OD demand compares to previous estimates based on travel surveys (Anken et al., 2012) and pedestrian count data (ASE).

2012

Tracking Pedestrians with WiFi Traces, Yusen Bian (Mathematics)

Supervision: Antonin Danalet
Gathering data about pedestrian localization and tracking indoor is a hot topic today. WiFi traces to track pedestrian paths have been collected on EPFL Campus. The poor quality and the scarcity of WiFi localization precludes the use of traditional map matching methods. This project aims at adapting methods recently developed for Smartphone GPS data.

2011-2012

Analyse des fréquentations de bus en Suisse, Suzy Polka (Communication Systems)

Supervision: Antonin Danalet
Ce projet de semestre porte sur une analyse des donn�es de fr�quentation de plusieurs lignes de bus � travers la Suisse. Il s'agit d'analyser le lien entre la fr�quentation et diff�rents autres facteurs tels que la fr�quence de la ligne, des variables temporelles (jour de la semaine, heure de la journ�e), le type de ligne, le bassin (densit� de population, emplois) ou encore le lien avec une gare CFF (pr�sence, mais aussi �ventuellement fr�quence des trains dans cette gare, ou du moins type de gare). Ce projet permet de travailler sur des donn�es d'une grande richesse, au sein d'un projet de recherche multidisciplinaire en cours en lien avec l'industrie et d'autres laboratoires de l'EPFL, en particulier la CEAT.

Service

Ongoing

Completed

Member of the Scientific Review Committee, TRISTAN 2016 (9th Triennial Symposium on Transportation Analysis), Aruba (Sep 01, 2015 - Jun 17, 2016)

Personal webpage

Bilge Atasoy

Bilge Atasoy has been a member of the laboratory from Sep 01, 2009 to Nov 28, 2013

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Bilge Atasoy.

Journal articles

2022

Sharif Azadeh S., Atasoy B., Ben-Akiva M., Bierlaire M., Maknoon Y. (2022). Choice-Driven Dial-A-Ride Problem for Demand Responsive Mobility Service. Transportation Research Part B: Methodological 161 :128-149

Urban mobility services face the challenge of planning their operations efficiently while complying with user preferences. In this paper, we introduce a new mathematical model called a choice-driven dial-a-ride problem (CD-DARP) which is a generalization of the dynamic DARP where passenger behavior is integrated in the operational planning using choice models and assortment optimization. We look at two types of mobility services, private and shared. Our problem extends the dynamic DARP by (i) changing its objective function to profit maximization, where both cost and revenue are variables, and (ii) incorporating assortment optimization with routing decisions in a dynamic setting. We propose a pricing scheme based on a choice model designed to offer service alternatives at the time a customer makes a request. We introduce a tailored algorithm to efficiently solve the dynamic CD-DARP. Computational results indicate that our proposed approach outperforms dynamic DARP in terms of reducing routing costs and improving the number of customers served.
```
@Article{SharAtasBenABierMakn22,
  author = {Shadi {Sharif Azadeh} and Bilge Atasoy and Moshe Ben-Akiva and Michel Bierlaire and Yousef Maknoon},
  title = {Choice-Driven Dial-A-Ride Problem for Demand Responsive Mobility Service},
  journal = {Transportation Research Part B: Methodological},
  year = {2022},
  volume = {161},
  pages = {128-149},
  DOI = {10.1016/j.trb.2022.04.008},
  note = {Accepted on Apr 29, 2022}}}
```

2014

Glerum A., Atasoy B., Bierlaire M. (2014). Using semi-open questions to integrate perceptions in choice models. Journal of Choice Modelling 10 :11-33

This research investigates the measurement of perceptions by means of adjectives freely reported by respondents in semi-open questions. It involved the use of semi-open responses of 1'763 Swiss individuals to develop indicators for a latent variable representing the perception of comfort of public transportation. The indicators are then incorporated into a discrete choice model of revealed mode choices. Perceptions are assumed to impact choice significantly and this research aims at capturing their complexity using adjectives and integrating them into the hybrid choice modeling framework. We exploit a quantification of the adjectives performed by external evaluators. Given the subjectivity that is involved, we analyze the sensitivity of the results across evaluators who rated the adjectives. We observe that the aggregate indicators of demand, such as market shares, elasticities and values of time, are rather robust across evaluators. This is not the case for the disaggregate indicators that may vary substantially across evaluators.
```
@Article{GleAtaBie_2013,
  author = {Aur\'elie Glerum and Bilge Atasoy and Michel Bierlaire},
  title = {Using semi-open questions to integrate perceptions in choice models},
  journal = {Journal of Choice Modelling},
  year = {2014},
  volume = {10},
  pages = {11-33},
  DOI = {10.1016/j.jocm.2013.12.001},
  note = {Accepted on Dec 13, 2013}}}
```

Atasoy B., Salani M., Bierlaire M. (2014). An integrated airline scheduling, fleeting and pricing model for a monopolized market. Computer-Aided Civil and Infrastructure Engineering 29 (2):76-90


@Article{AtasSalaBier13,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire},
  title = {An integrated airline scheduling, fleeting and pricing model for a monopolized market},
  journal = {Computer-Aided Civil and Infrastructure Engineering},
  year = {2014},
  volume = {29},
  number = {2},
  pages = {76-90},
  DOI = {10.1111/mice.12032},
  note = {Accepted on Apr 13, 2013}}}

2013

Atasoy B., Salani M., Bierlaire M., Leonardi C. (2013). Impact analysis of a flexible air transportation system. European Journal of Transport and Infrastructure Research 13 (2):123-146

The paper provides analytical evidence of the added-value of flexibility for air transportation systems. More specifically, the impact of a new innovative modular aircraft on the operations of an airline is deeply analyzed. The impact analysis is carried out with an integrated schedule planning model which presents a combination of appropriate optimization and behavioral modeling methodologies. The results show that the flexible system uses the transportation capacity more efficiently by carrying more passengers with less overall capacity. Moreover, it is observed that the flexible system deals better with insufficient transportation capacity. Furthermore, the scheduling decisions are robust to the estimated cost figures of the new system. For the analyzed range of costs, it is always carrying more passengers with less allocated capacity compared to a standard system.
```
@Article{AtaSalBierLeo_2013,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire and Claudio Leonardi},
  title = {Impact analysis of a flexible air transportation system},
  journal = {European Journal of Transport and Infrastructure Research},
  year = {2013},
  volume = {13},
  number = {2},
  pages = {123-146},
  DOI = {10.18757/ejtir.2013.13.2.2993},
  note = {Accepted on Dec 17, 2012}}}
```
Atasoy B., Glerum A., Bierlaire M. (2013). Attitudes towards mode choice in Switzerland. disP - The Planning Review 49 (2):101-117

We integrate latent attitudes of individuals into a mode choice model through latent variable and latent class models with the help of psychometric indicators that enable us to measure these attitudes. The aim of the inclusion of attitudes is to better understand the underlying choice preferences of travelers and therefore increase the forecasting power of the choice model. We first present an integrated choice and latent variable model where we include attitudes towards public transportation and environmental issues explaining the utility of public transport. Secondly we present an integrated choice and latent class model where we identify two segments of individuals having different sensitivities to the attributes of the alternatives resulting from their individual characteristics. Calibration of these types of advanced models on our sample has demonstrated the importance of attitudinal variables in the characterization of the population heterogeneity.
```
@Article{AtaGlerBier2012_DISP,
  author = {Bilge Atasoy and Aur\'elie Glerum and Michel Bierlaire},
  title = {Attitudes towards mode choice in Switzerland},
  journal = {disP - The Planning Review},
  year = {2013},
  volume = {49},
  number = {2},
  pages = {101-117},
  DOI = {10.1080/02513625.2013.827518},
  note = {Accepted on Apr 25, 2012}}}
```

2012

Atasoy B., Gullu R., Tan T. (2012). Optimal inventory policies with non-stationary supply disruptions and advance supply information. Decision Support Systems 53 (2):269-281

We consider the production/inventory problem of a manufacturer (or a retailer) under non-stationary and stochastic supply availability. Although supply availability is uncertain, the supplier would be able to predict her near future shortages – and hence supply disruption to (some of) her customers – based on factors such as her pipeline stock information, production schedule, seasonality, contractual obligations, and non-contractual preferences regarding other manufacturers. We consider the case where the information on the availability of supply for the near future, which we refer to as advance supply information (ASI), is provided by the supplier. The customer demand is deterministic but non-stationary over time, and the system costs consist of fixed ordering, holding and backorder costs. We consider an all-or-nothing type of supply availability structure and we show the optimality of a state-dependent (s,S) policy. For the case with no fixed ordering cost we prove various properties of the optimal order-up-to levels and provide a simple characterization of optimal order-up-to levels. For the model with fixed ordering cost, we propose a heuristic algorithm for finding a good ordering strategy. Finally, we numerically elaborate on the value of ASI and provide managerial insights.
```
@Article{Atasoy_MSc,
  author = {Bilge Atasoy and Refik Gullu and Tarkan Tan},
  title = {Optimal inventory policies with non-stationary supply disruptions and advance supply information},
  journal = {Decision Support Systems},
  year = {2012},
  volume = {53},
  number = {2},
  pages = {269-281},
  DOI = {10.1016/j.dss.2012.01.005}}}
```

Book chapters

2012


@InProceedings{AtasSalaBier12,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire},
  title = {Integrated schedule planning with supply-demand interactions for a new generation of aircrafts},
  year = {2012},
  booktile = {Operations Research Proceedings 2011},
  editor = {D. Klatte et al. },
  publisher = {Springer},
  pages = {495-500}}}

Technical reports

2013

Atasoy B., Salani M., Bierlaire M. (2013). A local search heuristic for a mixed integer nonlinear integrated airline schedule planning problem. Report TRANSP-OR 130402


@TechReport{AtaSalBier_2013,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire},
  title = {A local search heuristic for a mixed integer nonlinear integrated airline schedule planning problem},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2013},
  type = {Technical Report},
  number = {TRANSP-OR 130402},
  address = {Lausanne, Switzerland}}}

2012

Atasoy B., Salani M., Bierlaire M., Leonardi C. (2012). Impact analysis of a flexible air transportation system. Report TRANSP-OR 120717


@TechReport{AtaSalBierLeo_2012,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire and Claudio Leonardi},
  title = {Impact analysis of a flexible air transportation system},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2012},
  type = {Technical Report},
  number = {TRANSP-OR 120717},
  address = {Lausanne, Switzerland}}}

Atasoy B., Salani M., Bierlaire M. (2012). An integrated airline scheduling, fleeting and pricing model for a monopolized market. Report TRANSP-OR 120501


@TechReport{AtaSalBier_2012,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire},
  title = {An integrated airline scheduling, fleeting and pricing model for a monopolized market},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2012},
  type = {Technical Report},
  number = {TRANSP-OR 120501},
  address = {Lausanne, Switzerland}}}

Atasoy B., Bierlaire M. (2012). An air itinerary choice model based on a mixed RP/SP dataset. Report TRANSP-OR 120426


@TechReport{AtaBier_2012,
  author = {Bilge Atasoy and Michel Bierlaire},
  title = {An air itinerary choice model based on a mixed RP/SP dataset},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2012},
  type = {Technical Report},
  number = {TRANSP-OR 120426},
  address = {Lausanne, Switzerland}}}

Glerum A., Atasoy B., Bierlaire M. (2012). Using semi-open questions to integrate perceptions in choice models. Report TRANSP-OR 120325


@TechReport{GleAtaBie_2012,
  author = {Aur\'elie Glerum and Bilge Atasoy and Michel Bierlaire},
  title = {Using semi-open questions to integrate perceptions in choice models},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2012},
  type = {Technical Report},
  number = {TRANSP-OR 120325},
  address = {Lausanne, Switzerland}}}

2011

Atasoy B., Salani M., Leonardi C., Bierlaire M. (2011). Clip-Air, a flexible air transportation system. Report TRANSP-OR 110929


@TechReport{AtaSalLeoBier_2011,
  author = {Bilge Atasoy and Matteo Salani and Claudio Leonardi and Michel Bierlaire},
  title = {Clip-Air, a flexible air transportation system},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2011},
  type = {Technical Report},
  number = {TRANSP-OR 110929},
  address = {Lausanne, Switzerland}}}

Atasoy B., Glerum A., Bierlaire M. (2011). Attitudes towards mode choice in Switzerland. Report TRANSP-OR 110502


@TechReport{AtaGlerBier_2011,
  author = {Bilge Atasoy and Aur\'elie Glerum and Michel Bierlaire},
  title = {Attitudes towards mode choice in Switzerland},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2011},
  type = {Technical Report},
  number = {TRANSP-OR 110502},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2013

Atasoy B., Salani M., Bierlaire M. (2013) Integration of explicit supply-demand interactions in airline schedule planning and fleet assignment. Proceedings of the Swiss Transportation Research Conference (STRC), 24-26 April, Ascona, Switzerland


@InProceedings{Atasoy_STRC2013,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire},
  title = {Integration of explicit supply-demand interactions in airline schedule planning and  fleet assignment},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), 24-26 April},
  year = {2013},
  address = {Ascona, Switzerland}}}


@InProceedings{ChenAtasRobeBierThemSTRC2013,
  author = {Jingmin Chen and Bilge Atasoy and Tom\'a\v{s} Robenek and Michel Bierlaire and Micha\"el Th\'emans},
  title = {Planning of feeding station installment for electric urban public mass-transportation system},
  booktime = {Proceedings of the 13th Swiss Transportation Research Conference (STRC), 24-26 April},
  year = {2013},
  address = {Ascona, Switzerland}}}

Atasoy B., Salani M., Bierlaire M. (2013) Models and algorithms for integrated airline schedule planning and revenue management. Proceedings of the Eighth Triennial Symposium on Transportation Analysis (TRISTAN VIII), 09-14 June, San Pedro de Atacama, Chile


@InProceedings{Atasoy_TRISTAN2013,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire},
  title = {Models and algorithms for integrated airline schedule planning and revenue management},
  booktime = {Proceedings of the Eighth Triennial Symposium on Transportation Analysis (TRISTAN VIII), 09-14 June},
  year = {2013},
  address = {San Pedro de Atacama, Chile}}}

2012

Atasoy B., Salani M., Bierlaire M. (2012) An integrated fleet assignment and itinerary choice model for a new flexible aircraft. Proceedings of the Swiss Transport Research Conference (STRC), May 2-4, Ascona, Switzerland


@InProceedings{AtaSalBier_STRC2012,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire},
  title = {An integrated fleet assignment and itinerary choice model for a new flexible aircraft},
  booktime = {Proceedings of the  Swiss Transport Research Conference  (STRC), May 2-4},
  year = {2012},
  address = {Ascona, Switzerland}}}

2011


@InProceedings{AtaGleBier_ICMC2011,
  author = {Bilge Atasoy and Aur\'elie Glerum and Michel Bierlaire},
  title = {Mode choice with attitudinal latent class: a Swiss case-study},
  booktime = {Proceedings of the Second International Choice Modeling Conference (ICMC), July 4-6},
  year = {2011},
  address = {Leeds, UK}}}


@InProceedings{GleAtaMonBie_ICMC2011,
  author = {Aur\'elie Glerum and Bilge Atasoy and Alberto Monticone and Michel Bierlaire},
  title = {Adjectives qualifying individuals' perceptions impacting on transport mode preferences},
  booktime = {Proceedings of the Second International Choice Modeling Conference (ICMC), July 4-6},
  year = {2011},
  address = {Leeds, UK}}}


@InProceedings{Atasoy_OR2011,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire},
  title = {Integrated schedule planning with supply-demand interactions for a new generation of aircrafts},
  booktime = {Proceedings of the International Conference on Operations Research (OR), August 30 - September 2},
  year = {2011},
  address = {Zurich, Switzerland}}}


@InProceedings{Atasoy_STRC2011,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire},
  title = {Integrated schedule planning with supply-demand interactions},
  booktime = {Proceedings of the 11th Swiss Transport Research Conference (STRC), May 11-13},
  year = {2011},
  address = {Ascona, Switzerland}}}

2010


@InProceedings{ATASOY_STRC2010,
  author = {Bilge Atasoy and Aur\'elie Glerum and Ricardo Hurtubia and Michel Bierlaire},
  title = {Demand for public transport services: Integrating qualitative and quantitative methods},
  booktime = {Proceedings of the 10th Swiss Transport Research Conference (STRC), September 1 - 3, 2010},
  year = {2010},
  address = {Ascona, Switzerland}}}


@InProceedings{Hurt_WCTR10,
  author = {Ricardo Hurtubia and Bilge Atasoy and Aur\'elie Glerum and Anne Curchod and Michel Bierlaire},
  title = {Considering latent attitudes in mode choice: The case of Switzerland},
  booktime = {Proceedings of the World Conference on Transport Research (WCTR 2010), July 11-15},
  year = {2010},
  address = {Lisbon, Portugal}}}

Talks

2013

Atasoy B., Salani M., Bierlaire M. Models and algorithms for integrated airline scheduling, fleeting and pricing June 26, 2013. The International IIE Conference, Istanbul, Turkey.


@Misc{Atasoy_YAEM2013,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire},
  title = {Models and algorithms for integrated airline scheduling, fleeting and pricing},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Atasoy_YAEM2013.pdf}},
  year = {2013},
  note = {Presented at The International IIE Conference, Istanbul, Turkey}}}

Atasoy B., Salani M., Bierlaire M. Models and algorithms for integrated airline schedule planning and revenue management June 14, 2013. TRISTAN VIII, San Pedro de Atacama, Chile.


@Misc{Atasoy_TRISTAN2013,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire},
  title = {Models and algorithms for integrated airline schedule planning and revenue management},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Atasoy_TRISTAN2013.pdf}},
  year = {2013},
  note = {Presented at TRISTAN VIII, San Pedro de Atacama, Chile}}}

Atasoy B., Salani M., Bierlaire M. Analysis of an itinerary-based airline fleet assignment model with choice-driven recapture and pricing May 22, 2013. Seminar at IDSIA/SUPSI, Manno-Lugano, Switzerland.


@Misc{AtasoyB_IDSIA2013,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire},
  title = {Analysis of an itinerary-based airline  fleet assignment model with choice-driven recapture and pricing},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/AtasoyB_IDSIA2013.pdf}},
  year = {2013},
  note = {Presented at Seminar at IDSIA/SUPSI, Manno-Lugano, Switzerland}}}

Atasoy B., Salani M., Bierlaire M. Analysis of an itinerary-based airline fleet assignment model with passenger-choice driven recapture and pricing May 02, 2013. 11th Swiss OR Days, Geneva.


@Misc{AtasoyB_ORDAYS2013,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire},
  title = {Analysis of an itinerary-based airline  fleet assignment model with passenger-choice driven recapture and pricing},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/AtasoyB_ORDAYS2013.pdf}},
  year = {2013},
  note = {Presented at 11th Swiss OR Days, Geneva}}}

Atasoy B., Salani M., Bierlaire M. Integration of explicit supply-demand interactions in airline schedule planning and fleet assignment April 24, 2013. Swiss Transportation Research Conference, Ascona, Switzerland.


@Misc{Atasoy_STRC2013,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire},
  title = {Integration of explicit supply-demand interactions in airline schedule planning and  fleet assignment},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Atasoy_STRC2013.pdf}},
  year = {2013},
  note = {Presented at Swiss Transportation Research Conference, Ascona, Switzerland}}}

Atasoy B., Bierlaire M., Salani M. Flexibility in air transportation through new technologies and advance supply-demand interactions February 13, 2013. Group meeting, Massachusetts Institute of Technology, Transportation, Boston, US.


@Misc{Atasoy_MIT_2013,
  author = {Bilge Atasoy and Michel Bierlaire and Matteo Salani},
  title = {Flexibility in air transportation through new technologies and advance supply-demand interactions},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Atasoy_MIT_2013.pdf}},
  year = {2013},
  note = {Presented at Group meeting, Massachusetts Institute of Technology, Transportation, Boston, US}}}

Atasoy B., Salani M., Bierlaire M., Leonardi C. Impact analysis of a flexible air transportation system: Clip-Air January 23, 2013. Visit of SAFRAN Group, EPFL.


@Misc{SAFRAN_2013_Bilge,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire and Claudio Leonardi},
  title = {Impact analysis of a flexible air transportation system: Clip-Air},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/SAFRAN_2013_Bilge.pdf}},
  year = {2013},
  note = {Presented at Visit of SAFRAN Group, EPFL}}}

2012

Atasoy B., Salani M., Bierlaire M. Solution methods for an integrated airline schedule planning and revenue management model November 21, 2012. First Workshop on Large Scale Optimization, Vevey, Switzerland.


@Misc{Atasoy_WS_Opt_2012,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire},
  title = {Solution methods for an integrated airline schedule planning and revenue management model},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Atasoy_WS_Opt_2012.pdf}},
  year = {2012},
  note = {Presented at First Workshop on Large Scale Optimization, Vevey, Switzerland}}}

Atasoy B., Bierlaire M., Salani M. An integrated schedule planning and revenue management model September 07, 2012. LATSIS Symposium: 1st European Symposium on Quantitative Methods in Transportation Systems, Lausanne, Switzerland.


@Misc{Atasoy_LATSIS_2012,
  author = {Bilge Atasoy and Michel Bierlaire and Matteo Salani},
  title = {An integrated schedule planning and revenue management model},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Atasoy_LATSIS_2012.pdf}},
  year = {2012},
  note = {Presented at LATSIS Symposium: 1st European Symposium on Quantitative Methods in Transportation Systems, Lausanne, Switzerland}}}

Atasoy B., Salani M., Bierlaire M. An integrated fleet assignment model with supply-demand interactions July 09, 2012. 25th European Conference on Operational Research, Vilnius, Lithunia.


@Misc{Atasoy_EURO_2012,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire},
  title = {An integrated  fleet assignment model with supply-demand interactions},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Atasoy_EURO_2012.pdf}},
  year = {2012},
  note = {Presented at 25th European Conference on Operational Research, Vilnius, Lithunia}}}

Atasoy B., Bierlaire M., Salani M. Models and algorithms for integrated schedule planning and revenue management June 28, 2012. 10th Joint Operations Research Days 2012, Neuchatel.


@Misc{Atasoy_ORDays_2012,
  author = {Bilge Atasoy and Michel Bierlaire and Matteo Salani},
  title = {Models and algorithms for integrated schedule planning and revenue management},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Atasoy_ORDays_2012.pdf}},
  year = {2012},
  note = {Presented at 10th Joint Operations Research Days 2012, Neuchatel}}}

Atasoy B., Bierlaire M., Salani M. An integrated fleet assignment and itinerary choice model for a new flexible aircraft May 02, 2012. Swiss Transport Research Conference (STRC), Ascona, Switzerland.


@Misc{Atasoy_STRC2012,
  author = {Bilge Atasoy and Michel Bierlaire and Matteo Salani},
  title = {An integrated  fleet assignment and itinerary choice model for a new  flexible aircraft},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Atasoy_STRC2012.pdf}},
  year = {2012},
  note = {Presented at Swiss Transport Research Conference (STRC), Ascona, Switzerland}}}

Atasoy B., Bierlaire M., Salani M. Demand based airline scheduling for a new generation of aircraft January 16, 2012. Séminaire du 3ème cycle romand de Recherche Opérationnelle, ZINAL.


@Misc{BAtasoy_ZINAL2012,
  author = {Bilge Atasoy and Michel Bierlaire and Matteo Salani},
  title = {Demand based airline scheduling for a new generation of aircraft},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/BAtasoy_ZINAL2012.pdf}},
  year = {2012},
  note = {Presented at S\éminaire du 3\ème cycle romand de Recherche Op\érationnelle, ZINAL}}}

2011

Atasoy B., Salani M., Bierlaire M. Integrated schedule planning with supply-demand interactions for a new generation of aircrafts September 01, 2011. OR 2011, Zurich.


@Misc{Atasoy_OR2011,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire},
  title = {Integrated schedule planning with supply-demand interactions for a new generation of aircrafts},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Atasoy_OR2011.pdf}},
  year = {2011},
  note = {Presented at OR 2011, Zurich}}}

Atasoy B., Salani M., Bierlaire M. Integrated airline schedule planning with supply-demand interactions July 14, 2011. IFORS 2011, Melbourne, Australia.


@Misc{Atasoy_IFORS2011,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire},
  title = {Integrated airline schedule planning with supply-demand interactions},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Atasoy_IFORS2011.pdf}},
  year = {2011},
  note = {Presented at IFORS 2011, Melbourne, Australia}}}

Atasoy B. Optimal Inventory Policies with Non-stationary Supply Disruptions and Advance Supply Information July 11, 2011. IFORS 2011, Melbourne, Australia.


@Misc{Atasoy_IFORS2011_MSc,
  author = {Bilge Atasoy},
  title = {Optimal Inventory Policies with Non-stationary Supply Disruptions and Advance Supply Information},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Atasoy_IFORS2011_MSc.pdf}},
  year = {2011},
  note = {Presented at IFORS 2011, Melbourne, Australia}}}

Atasoy B., Salani M., Bierlaire M. Integrated schedule planning with supply-demand interactions May 13, 2011. Swiss Transport Research Conference, Ascona.


@Misc{BilgeAtasoy_STRC2011,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire},
  title = {Integrated schedule planning with supply-demand interactions},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/BilgeAtasoy_STRC2011.pdf}},
  year = {2011},
  note = {Presented at Swiss Transport Research Conference, Ascona}}}

Atasoy B., Salani M., Bierlaire M. Integrated airline schedule planning with supply-demand interactions January 18, 2011. ZINAL 2011, ZINAL.


@Misc{BAtasoy_ZINAL2011,
  author = {Bilge Atasoy and Matteo Salani and Michel Bierlaire},
  title = {Integrated airline schedule planning with supply-demand interactions},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/BAtasoy_ZINAL2011.pdf}},
  year = {2011},
  note = {Presented at ZINAL 2011, ZINAL}}}

2010

Atasoy B., Glerum A., Hurtubia R., Bierlaire M. Demand for public transport services: Integrating qualitative and quantitative methods September 01, 2010. Swiss Transport Research Conference, Ascona.


@Misc{BilgeAtasoy_STRC2010,
  author = {Bilge Atasoy and Aur\'elie Glerum and Ricardo Hurtubia and Michel Bierlaire},
  title = {Demand for public transport services: Integrating qualitative and quantitative methods},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/BilgeAtasoy_STRC2010.pdf}},
  year = {2010},
  note = {Presented at Swiss Transport Research Conference, Ascona}}}

Atasoy B., Salani M. CLIP-AIR: A modular multi-modal transportation system June 25, 2010. Schedule and Strategic Planning Study Group meeting, Lausanne, Switzerland.


@Misc{Bilge_AGIFORS_2010,
  author = {Bilge Atasoy and Matteo Salani},
  title = {CLIP-AIR: A modular multi-modal transportation system},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Bilge_AGIFORS_2010.pdf}},
  year = {2010},
  note = {Presented at Schedule and Strategic Planning Study Group meeting, Lausanne, Switzerland}}}

Reviewing

Research projects

2012

myTOSA: catenary-free 100% electric urban public mass-transportation system

myTOSA is a simulation tool for the dimensioning, commercial promotion and case study set-up for ABB's revolutionary "catenary-free" 100% electric urban public mass-transportation system TOSA 2013. The objective of the project is to provide a simulation tool that will allow ABB to perform the proper dimensioning, promote the commercial idea and allow for specific study cases for the implementation of ABB's new public electric transportation concept, namely TOSA 2013.
- Mar 01, 2012 - Sep 30, 2013
- Sponsor: Commission pour la technologie et de l'innovation, Office Fédéral de la formation professionnelle et de la technologie.
- Principal investigator: Michel Bierlaire
- Project manager: Jianghang Chen
- Collaborators: Bilge Atasoy, Tom�s Robenek

2010

CLIP-AIR concept: Integrated schedule planning for a new generation of aircrafts

Sustainability has become a key topic in transportation in the last decades where the aim is to reduce the impact of transportation on the environment. One of the most important paths toward sustainability in this sector is to optimize transportation operations required in several dimensions to fulfill a given transport demand. To achieve this goal in the context of multimodal transport, there is a clear need for flexibility in capacity. This flexibility is adequately provided by a new concept developed at EPFL, named Clip-Air, for air transport. Clip-Air is a modular innovative aircraft with detachable load units which enable to adjust at best capacity according to demand. The decoupling of the load (capsules) and carrying units (wings) allows for simplified fleet management and maintenance operations for airlines and is expected to improve the ground operations for airports. Clip-Air also provides effective possibility of combining commercial freight and passengers on the same flight without any compromise in comfort. Besides, Clip-Air is designed to operate in a multi-modal context and is expected to improve the multi-modality concept by allowing a better integration between air transport and other transport modes. The objective of this research is to assess the actual impact of Clip-Air�s modularity on demand satisfaction, operational costs and environmental issues at the system level. The contributions will consist of models and algorithms designed to perform comparative analysis of operations of airlines and airports in various scenarios.
- Nov 01, 2010 - Dec 31, 2013
- Sponsor: EPFL Middle East
- Principal investigator: Michel Bierlaire
- Project managers: Bilge Atasoy, Matteo Salani

2009

OPTIMA: Inferring transport mode preferences from attitudes

Swiss Post and PostBus have launched a research project to optimize mobility in cooperation with the Federal Institute of Technology in Lausanne (EPFL), represented by EPFL Transportation Center, under Professor Michel Bierlaire. This will show the market potential for combined mobility. Among other things it will look at the factors that influence travellers in their choice of transport. At a later stage, target group-specific new transport offerings and services will be developed and tested, which will have a lasting influence on this choice. The three years research project is conducted by Professors Vincent Kaufmann (LASUR) and Michel Bierlaire (TRANSP-OR).
- Feb 01, 2009 - Jun 30, 2012
- Sponsor: LaPoste
- Principal investigator: Michel Bierlaire
- Project manager: Anne Curchod
- Collaborators: Aur�lie Glerum, Bilge Atasoy, Antonin Danalet

EPFL courses

Fall 2012

Introduction � l'optimisation diff�rentiable.
- Level: Bachelor
- Sections: Mechanical Engineering, Electrical and Electronics Engineering, Chemistry and Chemical Engineering, Computer science
- Lecturer: Michel Bierlaire
- Teaching assistant: Bilge Atasoy
- Webpage: http://transp-or.epfl.ch/courses/optimization2012/

Fall 2011

Introduction � l'optimisation diff�rentiable.
- Level: Bachelor
- Sections: Mechanical Engineering, Electrical and Electronics Engineering, Chemistry and Chemical Engineering, Computer science
- Lecturer: Michel Bierlaire
- Teaching assistants: Bilge Atasoy, Nitish Umang

Fall 2010

Introduction � l'optimisation diff�rentiable.
- Level: Bachelor
- Sections: Mechanical Engineering, Electrical and Electronics Engineering, Chemistry and Chemical Engineering, Computer science
- Lecturer: Micha�l Th�mans
- Teaching assistants: Bilge Atasoy, Ricardo Hurtubia

Spring 2010

Recherche op�rationnelle.
- Level: Bachelor
- Sections: Civil Engineering, Environmental Sciences and Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Mamy Fetiarison, Bilge Atasoy
- Webpage: http://transp-or.epfl.ch/courses/RechOp/09-10

Master theses

2012-2013

Optimization of an electric bus network, Frédéric Pythoud (Mathematics)
- Supervision: Bilge Atasoy, Tomás Robenek, Michel Bierlaire
- External expert: Olivier Augé, ABB

2012

MEETAWAY: Connecting People Optimally, François Anken (Mathematics)
- Supervision: Prem Kumar, Bilge Atasoy, Michel Bierlaire
- External expert: Pedro Faustino

2010

Blind Booking Purchase Patterns: discrete choice analysis, Alexandre Khelifa (Civil Engineering)
- Supervision: Michel Bierlaire, Bilge Atasoy, Prem Kumar
- External expert: Prof. Laurie Garrow, Georgia Tech.

Semester projects

2013

Optimisation des transports scolaires à Grandson II, Franka Tholen (Mathematics)

Supervision: Michel Bierlaire, Tomás Robenek, Bilge Atasoy
Analyser les probl�matiques, actuelles et futures, et proposer des solutions d'am�lioration d�coulant de l'organisation et de la gestion de l'ensemble des transports n�cessaires � la bonne marche du groupement et de l'arrondissement scolaire de Grandson (18 communes, 1'350 �l�ves, 70 classes, 12 sites scolaires). Ces probl�matiques r�sultent principalement d'une augmentation significative des co�ts li�s � l'introduction de la communaut� tarifaire vaudoise (Mobilis), de contraintes li�es � l'entr�e en vigueur d'HarmoS, des projets de constructions de l'association intercommunal, de l'�volution du r�seau r�gional des transports voire �galement des synergies � d�velopper avec le milieu parascolaire.

2012-2013

Robustness and recovery in airline scheduling , Jonathan Blaiberg (Civil Engineering)

Supervision: Michel Bierlaire, Bilge Atasoy

Optimisation des transports scolaires à Grandson I, Clement Massart (Mathematics)

Supervision: Tomás Robenek, Bilge Atasoy, Michel Bierlaire
Analyser les probl�matiques, actuelles et futures, et proposer des solutions d'am�lioration d�coulant de l'organisation et de la gestion de l'ensemble des transports n�cessaires � la bonne marche du groupement et de l'arrondissement scolaire de Grandson (18 communes, 1'350 �l�ves, 70 classes, 12 sites scolaires). Ces probl�matiques r�sultent principalement d'une augmentation significative des co�ts li�s � l'introduction de la communaut� tarifaire vaudoise (Mobilis), de contraintes li�es � l'entr�e en vigueur d'HarmoS, des projets de constructions de l'association intercommunal, de l'�volution du r�seau r�gional des transports voire �galement des synergies � d�velopper avec le milieu parascolaire.

2012

Sensitivity analysis for a new generation of aircraft: Clip-Air, Joseph Abisaleh (Civil Engineering)

Supervision: Bilge Atasoy
Clip-Air is an innovative air transportation system based on modularity. By design, loading units (capsules) can be detached from the carrying unit (wing) which has several advantages in terms of fleeting operations. To quantify these advantages an integrated schedule design and fleet assignment model is developed for both standard planes and Clip-Air. The comparative analysis has shown that there is a potential increase in the transportation capacity thanks to modularity of Clip-Air. Since Clip-Air is only exists in a simulation environment, the parameters regarding the design of the Clip-Air are based on estimation. A sensitivity analysis should be carried out to see the impact of the estimated parameters on the results. The objective of this project is to identify the parameters to which the model is more sensitive.

Positioning Clip-Air among other transportation systems as a multi-modal flexible aircraft, Jonathan Blaiberg (Civil Engineering)

Supervision: Bilge Atasoy
Clip-Air is an innovative air transportation system based on modularity. By design, loading units (capsules) can be detached from the carrying unit (wing) which has several advantages in terms of fleeting operations. To quantify these advantages an integrated schedule design and fleet assignment model is developed for both standard planes and Clip-Air. The comparative analysis has shown that there is a potential increase in the transportation capacity thanks to modularity of Clip-Air. To see the impacts of Clip-Air with a systematic perspective it is important to build analogies with existing transportation systems. The novel feature of Clip-Air is its flexible transportation capacity and it is similar to the case of railways where the train cars are assigned to the locomotives. Moreover, the multi-modal aspect of Clip-Air has strong similarities with maritime transportation where standard load units are transported in different transportation modes. Starting from these analogies we can analyze the similarities and differences between the existing transportation systems and new air transportation system Clip-Air. Similarities will strengthen the basis of this new idea and the differences will justify the need for new models and methodologies to analyze the added value of Clip-Air.

2011-2012

Multi-modal transportation modeling for a new generation of aircraft: Clip-Air, Jonathan Blaiberg (Civil Engineering)

Supervision: Bilge Atasoy, Matteo Salani
Clip-Air is an innovative air transportation system based on modularity. By design, loading units (capsules) can be detached from the carrying unit (wing) which has several advantages in terms of fleeting operations. To quantify these advantages an integrated schedule design and fleet assignment model is developed for both standard planes and Clip-Air. The comparative analysis has shown that there is a potential increase in the transportation capacity thanks to modularity of Clip-Air. As a further investigation, the performance of Clip-Air is needed to be analyzed from a network perspective. Repositioning of Clip-Air capsules by other means of transport, specifically railways, will give this multi-modal network viewpoint. The repositioning is believed to increase the profit especially in case of unbalanced demand between airport pairs. Furthermore, since Clip-Air capsules are completely detached from the wing, the storage and transfer costs are expected to be reduced. The aim of this project is to develop an appropriate model for the repositioning of Clip-Air capsules and obtain an integrated fleeting model. The tasks of this semester project are the following: 1. Get familiar with the concept of fleet assignment and already developed models. 2. Make a literature search on empty container management models. 3. Develop an appropriate model for the repositioning of capsules to be integrated into the existing fleet assignment model. Repositioning model will determine the flow of empty capsules throughout the network considering the carrying costs of capsules by rail and storage cost of capsules at airports. 4. Obtain preliminary results for a few data instances. 5. Evaluate the effect of repositioning.

2011

Measuring Passenger Satisfaction using AirS@t Survey, Lidija Stankovikj (Mathematics)

Supervision: Bilge Atasoy, Aurélie Glerum
M1nd-set is an international market research agency specialized in air travel surveys and research. The company conducts regular passenger satisfaction surveys among the major fullservice airlines on different international market areas. M1nd-set manages reasonable passenger response rates and over a third of their survey is administered on business-class travelers who value passenger service. At present, AirS@t survey captures the passenger satisfaction levels for different parameters, such as waiting times for check-in, boarding and in-flight services, staff friendliness, seat comfort, in-flight entertainment, meals, etc., that are perceived to drive the overall satisfaction of flying with a particular airline company. M1nd-set uses a specific method of calculating weights of these parameters, in the order of importance, and arriving at overall airline satisfaction levels. However we see some scope in applying more advanced scientific models to this data to gain a deeper perspective on the relative significance of these parameters. In addition, it is critical to understand if higher satisfaction levels with a particular carrier are actually translating into increased demands and thus increased revenues. This could also mean that we can test the sufficiency of the currently captured parameters and if there are some additional parameters that could be silently driving the demand. M1nd-set is seeking fresh, innovative and out-of-the-box ideas to analyze the data mine at hand. They are willing to give access to the data base (under the umbrella of the enclosed NDA) to the student who brings an interesting research idea. Ideally the outcome of this research / analysis should be presented to airlines on conference(s) and/or published. This project will be composed of the following stages: 1. Understanding basic airline industry domain, various players and AirS@t survey in that perspective 2. Literature review and discussion on new ideas 3. Preliminary data analysis 4. Application of fresh methodologies for data analysis, such as using Discrete Choice Models for analysis 5. Inclusion of additional questions on the survey that could provide new insights 6. Final presentation and report Project will commence around mid February and would continue for about 4 1/2 months

2010-2011

Integrating demand functions inside optimization model, Nancy Moret (Mathematics)

Supervision: Bilge Atasoy, Matteo Salani
For the new air-transportation system CLIP-AIR we want to have a fleeting model which includes a demand model. The project requires 1. understanding of the concept, 2. implementing the model in a general purpose math language, 3. using a solver for the nonlinear mixed integer problem, 4. performing preliminary tests with given instances.

Integrating the latent attitudes into mode choice, Lidija Stankovikj (Mathematics)

Supervision: Bilge Atasoy, Aurélie Glerum
In the classical mode choice modeling we have the modal attributes like time and cost, and the socio-economic information as explanatory variables. However there are unobservable variables like attitudes, perceptions, lifestyle etc. which are effective in travel behavior. In this project aim is to come up with integrated choice models including these latent variables.

Insertion d'un nouveau moyen de transport aérien sur la base d'avions de transport existants, Laurene Aigrain & Dethier Daphné (Civil Engineering)

Supervision: Claudio Leonardi, Bilge Atasoy
Insertion d'un nouveau moyen de transport a�rien sur la base d'avions de transport existants Il s'agit de cr�er une base de donn�es comprenant les avions de ligne les plus repr�sentatifs utilis�s par les diff�rentes compagnies dans les transports de passagers et de fret. Il faudra remplir un tableau par types et constructeurs d'avions: en tonnages, surfaces alaires, masses max et min, charges, nombre de passagers, altitudes, rayon maximal de chacun, ainsi que les vitesses de d�collage, de croisi�re et d'atterrissage. La recherche, la mise en place et le classement de l'ensemble de ces donn�es permettront de faire des correspondances par type de missions, comme les courts courriers, moyen-courriers et long-courriers. Ceci constitue l'�tape N�1 Cette classification permettra de d�finir l'�tape N�2, qui sera exprim�e par une s�rie de graphiques faisant correspondre les caract�ristiques aux missions. Par exemple rechercher des correspondances de surfaces alaires et de poids ou de surfaces et de masses en corr�lation � un rayon d�action maximum, etc. Les �tudiants chercheront et exprimeront ces concordances entre ces types d'avions par une s�rie de graphiques explicites sachant que les donn�es collect�es sont optimis�es aux maximums par les lois de la m�canique des fluides, v�ritable base commune � tout constructeur d'avions. L'�tape N�3 consistera, avec les donn�es qui seront remises aux �tudiants, � faire un tableau r�unissant un maximum d��l�ments concernant le projet Clip-Air. Ceci au travers des deux publications existantes qui seront remises aux �tudiants. Ces donn�es seront compl�t�es avec l'aide des personnes travaillant dans le projet. L'�tape N�4 sera d'ins�rer le projet Clip-Air dans les graphiques de l'�tape N�2. Ceci permettra aux �tudiants de tirer des conclusions qui situeront le projet Clip-Air par comparaison, dans: - la classe op�rationnelle la plus proche -son potentiel de transports -d'�valuer "les manques" ou "les trop", qui permettrait de correspondre � une classe op�rationnelle donn�e (en tenant compte de facteurs sp�cifiques au projet Clip-Air qui seront discut�s � cette �tape).

Jingmin Chen

Jingmin Chen has been a member of the laboratory from Aug 01, 2008 to Jul 31, 2013

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Jingmin Chen.

Journal articles

2015

Chen J., Bierlaire M. (2015). Probabilistic multimodal map-matching with rich smartphone data. Journal of Intelligent Transportation Systems 19 (2):134-148


@Article{ChenBier13,
  author = {Jingmin Chen and Michel Bierlaire},
  title = {Probabilistic multimodal map-matching with rich smartphone data},
  journal = {Journal of Intelligent Transportation Systems},
  year = {2015},
  volume = {19},
  number = {2},
  pages = {134-148},
  DOI = {10.1080/15472450.2013.764796},
  note = {Accepted on Oct 22, 2012}}}

2013

Bierlaire M., Chen J., Newman J. (2013). A Probabilistic Map Matching Method for Smartphone GPS data. Transportation Research Part C: Emerging Technologies 26 :78�98


@Article{BierChenNewm12,
  author = {Michel Bierlaire and Jingmin Chen and Jeffrey Newman},
  title = {A Probabilistic Map Matching Method for Smartphone GPS data},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2013},
  volume = {26},
  pages = {78{\textendash}98},
  DOI = {10.1016/j.trc.2012.08.001},
  note = {Accepted on Aug 03, 2012}}}

Book chapters

2014


@InProceedings{KazChenBier_IGI,
  author = {Evanthia Kazagli and Jingmin Chen and Michel Bierlaire},
  title = { Individual Mobility Analysis Using Smartphone Data},
  year = {2014},
  booktile = {Mobile Technologies for Activity-Travel Data Collection and Analysis},
  editor = {Soora Rasouli and Harry Timmermans},
  publisher = {IGI Global},
  pages = {187-208}}}

Technical reports

2012

Chen J., Bierlaire M. (2012). Probabilistic multimodal map-matching with rich smartphone data. Report TRANSP-OR 120618


@TechReport{ChenBier12,
  author = {Jingmin Chen and Michel Bierlaire},
  title = {Probabilistic multimodal map-matching with rich smartphone data},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2012},
  type = {Technical Report},
  number = {TRANSP-OR 120618},
  address = {Lausanne, Switzerland}}}

2010

Bierlaire M., Chen J., Newman J. (2010). Modeling Route Choice Behavior From Smartphone GPS data. Report TRANSP-OR 101016


@TechReport{BierChenNewm10,
  author = {Michel Bierlaire and Jingmin Chen and Jeffrey Newman},
  title = {Modeling Route Choice Behavior From Smartphone GPS data},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2010},
  type = {Technical Report},
  number = {TRANSP-OR 101016},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2011


@InProceedings{STRC_2011_CHEN,
  author = {Jingmin Chen and Michel Bierlaire and Gunnar Fl\"otter\"od},
  title = {Probabilistic multi-modal map matching with rich smartphone data},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), May 11-13, 2011	},
  year = {2011},
  address = {Monte Verit\`a, Ascona	, Switzerland}}}

2010


@InProceedings{trb10bierchennewman,
  author = {Michel Bierlaire and Jingmin Chen and Jeffrey Newman},
  title = {Using location observations to observe routing for choice models},
  booktime = {Proceedings of the 89th Transportation Research Board Annual Meeting (TRB), January 10-14},
  year = {2010},
  address = {Washington D.C., US}}}

2009


@InProceedings{etcnewchenbier09,
  author = {Jeffrey Newman and Jingmin Chen and Michel Bierlaire},
  title = {Generating probabilistic path observation from GPS data for route choice modeling},
  booktime = {Proceedings of the European Transport Conference (ETC), 5-7 October 2009},
  year = {2009},
  address = {, The Netherlands}}}


@InProceedings{CHEN09_IATBR,
  author = {Jingmin Chen and Jeffrey Newman and Michel Bierlaire},
  title = {Modeling Route Choice Behavior From Smart-phone GPS data},
  booktime = {Proceedings of the The 12th International Conference on Travel Behaviour Research (IATBR), December 13-18, 2009},
  year = {2009},
  address = {Jaipur, India}}}


@InProceedings{strc09chen,
  author = {Michel Bierlaire and Jeffrey Newman and Jingmin Chen},
  title = {A method of probabilistic map distribution of path likelihood},
  booktime = {Proceedings of the 9th Swiss Transport Research Conference (STRC), September 9 - 11},
  year = {2009},
  address = {Ascona, Switzerland}}}

Talks

2011

Chen J., Bierlaire M., Flötteröd G. Probabilistic multi-modal map matching with rich smartphone data May 13, 2011. Swiss Transportation Research Conference .


@Misc{chen_strc_2011,
  author = {Jingmin Chen and Michel Bierlaire and Gunnar Fl\"otter\"od},
  title = {Probabilistic multi-modal map matching with rich smartphone data},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/chen_strc_2011.pdf}},
  year = {2011},
  note = {Presented at Swiss Transportation Research Conference }}}

2010

Chen J., Bierlaire M., Hurtubia R., Flötteröd G. Inferring smartphone users� activities August 20, 2010. Swiss Transportation Research Conference, Ascona.


@Misc{chen_strc_2010,
  author = {Jingmin Chen and Michel Bierlaire and Ricardo Hurtubia and Gunnar Fl\"otter\"od},
  title = {Inferring smartphone users{\textquoteright} activities},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/chen_strc_2010.pdf}},
  year = {2010},
  note = {Presented at Swiss Transportation Research Conference, Ascona}}}

Chen J., Bierlaire M. Description of the Nokia data collection campaign: Issues and successes July 15, 2010. iTeam Meeting, Instituto Superior Tecnico, Lisbon.


@Misc{iteamchen20100715,
  author = {Jingmin Chen and Michel Bierlaire},
  title = {Description of the Nokia data collection campaign: Issues and successes},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/iteamchen20100715.pdf}},
  year = {2010},
  note = {Presented at iTeam Meeting, Instituto Superior Tecnico, Lisbon}}}

Chen J., Bierlaire M. Description of the Nokia data collection campaign: Issues and successes July 12, 2010. World Conference on Transport Research, Lisbon, Portugal.


@Misc{WCTR2010CHEN,
  author = {Jingmin Chen and Michel Bierlaire},
  title = {Description of the Nokia data collection campaign: Issues and successes},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/WCTR2010CHEN.pdf}},
  year = {2010},
  note = {Presented at World Conference on Transport Research, Lisbon, Portugal}}}

Chen J., Hurtubia R., Bierlaire M. Exploiting smart phone data to identify users' activities June 23, 2010. NRC-Lausanne bi-annual seminars, EPFL.


@Misc{NRC10_CHEN,
  author = {Jingmin Chen and Ricardo Hurtubia and Michel Bierlaire},
  title = {Exploiting smart phone data to identify users' activities},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/NRC10_CHEN.pdf}},
  year = {2010},
  note = {Presented at NRC-Lausanne bi-annual seminars, EPFL}}}

2009

Chen J., Newman J., Bierlaire M. Modeling Route Choice Behavior From Smart-phone GPS data December 17, 2009. The 12th International Conference on Travel Behavior Research, Jaipur, India.


@Misc{IATBR09_JCHEN,
  author = {Jingmin Chen and Jeffrey Newman and Michel Bierlaire},
  title = {Modeling Route Choice Behavior From Smart-phone GPS data},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/IATBR09_JCHEN.pdf}},
  year = {2009},
  note = {Presented at The 12th International Conference on Travel Behavior Research, Jaipur, India}}}

Chen J. A visualization tool for Nokia Smartphone data December 04, 2009. Nokia Research Center Data Collection Workshop, Nokia Research Center in Lausanne, Lausanne, Switzerland.


@Misc{NRC2010JMCHEN,
  author = {Jingmin Chen},
  title = {A visualization tool for Nokia Smartphone data},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/NRC2010JMCHEN.pdf}},
  year = {2009},
  note = {Presented at Nokia Research Center Data Collection Workshop, Nokia Research Center in Lausanne, Lausanne, Switzerland}}}

Newman J., Chen J., Bierlaire M. GENERATING PROBABILISTIC PATH OBSERVATION FROM GPS DATA FOR ROUTE CHOICE MODELING October 05, 2009. European Transportation Conference 2009.


@Misc{ETC09C,
  author = {Jeffrey Newman and Jingmin Chen and Michel Bierlaire},
  title = {GENERATING PROBABILISTIC PATH OBSERVATION FROM GPS DATA FOR ROUTE CHOICE MODELING},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/ETC09C.pdf}},
  year = {2009},
  note = {Presented at European Transportation Conference 2009}}}

Bierlaire M., Newman J., Chen J. A method of calculating path observation likelihood from GPS data August 28, 2009. Workshop on discrete choice models, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.


@Misc{WDCA09j,
  author = {Michel Bierlaire and Jeffrey Newman and Jingmin Chen},
  title = {A method of calculating path observation likelihood from GPS data},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/WDCA09j.pdf}},
  year = {2009},
  note = {Presented at Workshop on discrete choice models, Ecole Polytechnique F\éd\érale de Lausanne, Lausanne, Switzerland}}}

Reviewing

Research projects

2010

Route choice models and smart phone data

Smart phones are able to collect a great wealth of information about the mobility patterns of individuals, including their itinerary. In addition to GPS tracks, smart phones contain several sensors and software revealing various aspects of the user's behavior (nearby Bluetooth devices, WiFi antenna, media players, etc.) Route choice models rely on the knowledge of the origin and the destination of the trip, and the transportation mode. They may also benefit from other contextual data, such as the trip purpose or the chain of subsequent activities. We plan to investigate how to infer this information from the smart phone data.
- Oct 01, 2010 - Sep 30, 2013
- Sponsor: Swiss National Science Foundation
- Principal investigator: Michel Bierlaire
- Project manager: Jingmin Chen
- Collaborator: Jingmin Chen

2008

Disaggregate behavioral models exploiting data from Nokia devices

The projects aims at investigating how to perform an appropriate fusion of data from smartphones in order to predict the mobility behavior of a given individual.
- Dec 01, 2008 - Jun 30, 2010
- Sponsor: Nokia Research Center
- Principal investigator: Michel Bierlaire
- Project manager: Jeffrey Newman
- Collaborator: Jingmin Chen

EPFL courses

Spring 2012

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Michel Bierlaire, Prem Kumar
- Teaching assistants: Jingmin Chen, Nitish Umang
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2012

Spring 2011

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Michel Bierlaire, Prem Kumar
- Teaching assistants: Jingmin Chen, Nitish Umang
- Webpage: http://transp-or.epfl.ch/courses/decisionAid2011

Fall 2009

Mathematical Modeling of Behavior.
- Level: Master
- Section: Mathematics
- Lecturer: Michel Bierlaire
- Teaching assistants: Thomas Robin, Jingmin Chen
- Webpage: NULL

Spring 2009

Recherche op�rationnelle.
- Level: Bachelor
- Sections: Civil Engineering, Environmental Sciences and Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Mamy Fetiarison, Jingmin Chen
- Webpage: NULL

Master theses

2011

Mobility in the Middle East, Laurene Aigrain (Civil Engineering)
- Supervision: Michel Bierlaire, Jingmin Chen
- External expert: Prof. John Polak

2010

Balancing Energy Consumption and Location Precision in Continuous Location Tracking, Julien Eberle (Computer science)
- Supervision: Michel Bierlaire, Jingmin Chen
- External expert: Gian Paolo Perrucci

Semester projects

2012-2013

Mobility learning from smartphone WIFI data, Amélie Buisson (Civil Engineering)

Supervision: Jingmin Chen, Evanthia Kazagli, Marija Nikolic
Smartphone is a powerful and convenient platform for collecting location data for mobility behavior research. Most of the research relies on GPS to get accurate location, or GSM to get massively available but imprecise location. This project investigates the feasibility of using WIFI data for mobility behavior research. The dataset is collected from 200 smartphones over 2 years. The data collection application (EPFLScope) records all nearby WIFI access points (AP) every 3-5 minutes. Some of the WIFI access points are associated with location information. Therefore, it is possible to identify the location of the smartphone according to the nearby WIFI AP. With this location information, we can further understand spatial and temporal mobility patterns.

2011-2012

Mobility identification from smartphone GPS data, Denis Garcia (Mathematics)

Supervision: Jingmin Chen, Ricardo Hurtubia
We record data from smarpthones over 2 years from about 180 N95 smartphone user. The data includes, GPS, nearby Bluetooth devices, nearby WIFI spots, calendar, etc. This project aims at identifying mobility history (trips and destinations) from raw data. The project will be based on some existing solutions (with existing Java and Python code). And the student will improve or develop a new software to process the data, and generate and visualize the data. You can choose among Python, Java or C++ for the project. The objectives of the project are following (You can choose among them): 1. Identify trips (origin, destination and time) from the GPS data. 2. Detect transportation mode (car, or public transport, etc) from the trips.

2010-2011

Travel behavior models: an Abu Dhabi case study, Laurène Aigrain (Civil Engineering)

Supervision: Michel Bierlaire, Jingmin Chen
In this project, the student aims at studying the state-of-the-art demand modeling method- ologies in the transportation field. She will learn discrete choice models, and relevant tech- niques, such as simulation, and apply them in the study of mode choice and/or driving behavior. An Abu Dhabi case study will be carried out.

2009-2010

Testing the algorithm for generating path observation from GPS data, Jensen Anders Fjendbo (Civil Engineering)

Supervision: Michel Bierlaire, Jingmin Chen
This project aims at using and testing an innovative probabilistic path observation generation algorithm on location data and comparing against state-of-the-art map matching algorithms.

Visualization of Cell Phone Data on Google Earth, Raoul Neu (Computer science)

Supervision: Jingmin Chen
This project aims at providing to our data collection campaign participants a convenient and lively way of visualizing cell phone data which is collected from their cell phones and stored on web servers. Various kinds of data are display on google earth to show chains of users� activities, with time-space information provided by GPS data.

Ricardo Hurtubia

Ricardo Hurtubia has been a member of the laboratory from Jun 01, 2008 to Nov 02, 2012

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Ricardo Hurtubia.

Journal articles

2019

Hurtubia R., Martinez F., Bierlaire M. (2019). A quasi-equilibrium approach for market clearing in land use microsimulations. Environment and Planning B 46 (3):445�468


@Article{HurtBierMart17,
  author = {Ricardo Hurtubia and Francesco Martinez and Michel Bierlaire},
  title = {A quasi-equilibrium approach for market clearing in land use microsimulations},
  journal = {Environment and Planning B},
  year = {2019},
  volume = {46},
  number = {3},
  pages = {445{\textendash}468},
  DOI = {10.1177/2399808317719071},
  note = {Accepted on Jun 12, 2017}}}

2014

Hurtubia R., Nguyen M., Glerum A., Bierlaire M. (2014). Integrating psychometric indicators in latent class choice models. Transportation Research Part A: Policy and Practice 64 :135-146


@Article{HuNgGlBi_2014,
  author = {Ricardo Hurtubia and {My Hang} Nguyen and Aur\'elie Glerum and Michel Bierlaire},
  title = {Integrating psychometric indicators in latent class choice models},
  journal = {Transportation Research Part A: Policy and Practice},
  year = {2014},
  volume = {64},
  pages = {135-146},
  DOI = {10.1016/j.tra.2014.03.010},
  note = {Accepted on Mar 11, 2014}}}

Hurtubia R., Bierlaire M. (2014). Estimation of bid functions for location choice and price modeling with a latent variable approach. Networks and Spatial Economics 14 (1):47-65

A new approach for the estimation of bid-rent functions for residential location choice is proposed. The method is based on the bid-auction approach and considers that the expected maximum bid of the auction is a latent variable that can be related to observed price indicators through a measurement equation. The method has the advantage of allowing for the estimation of the parameters of the bid function that explain the heterogeneous preferences of households for location while simultaneously adjusting the expected maximum bid to reproduce realistic values. The model is applied and validated for a case study on the city of Brussels. Results show that the proposed model outperforms other methods for bid-rent estimation, both in terms of real estate prices and spatial distribution of agents, especially when detailed data describing the real estate goods and their prices is not available.
```
@Article{HurtBier13,
  author = {Ricardo Hurtubia and Michel Bierlaire},
  title = {Estimation of bid functions for location choice and price modeling with a latent variable approach},
  journal = {Networks and Spatial Economics},
  year = {2014},
  volume = {14},
  number = {1},
  pages = {47-65},
  DOI = {10.1007/s11067-013-9200-z},
  note = {Accepted on Jul 16, 2013}}}
```

2013

Farooq B., Bierlaire M., Hurtubia R., Flötteröd G. (2013). Simulation based population synthesis. Transportation Research Part B: Methodological 58 :243-263


@Article{FaroBierHurtFloe13,
  author = {Bilal Farooq and Michel Bierlaire and Ricardo Hurtubia and Gunnar Fl\"otter\"od},
  title = {Simulation based population synthesis},
  journal = {Transportation Research Part B: Methodological},
  year = {2013},
  volume = {58},
  pages = {243-263},
  DOI = {10.1016/j.trb.2013.09.012},
  note = {Accepted on Sep 21, 2013}}}

2010

Bierlaire M., Hurtubia R., Flötteröd G. (2010). An analysis of the implicit choice set generation using the Constrained Multinomial Logit model. Transportation Research Record 2175 :92-97

Discrete choice models are defined conditional to the analyst's knowledge of the actual choice set. The common practice for many years has been to assume that individual-based choice sets can be deterministically generated on the basis of the choice context and characteristics of the decision maker. This assumption is not valid or not applicable in many situations, and probabilistic choice set formation procedures must be considered. The constrained multinomial logit model (CMNL) has recently been proposed as a convenient way to deal with this issue, as it is also appropriate for models with a large choice set. In this paper, how well the implicit choice set generation of the CMNL approximates the explicit choice set generation is analyzed as described in earlier research. The results based on synthetic data show that the implicit choice set generation model may be a poor approximation of the explicit model.
```
@Article{BierHurtFlo_TRB10,
  author = {Michel Bierlaire and Ricardo Hurtubia and Gunnar Fl\"otter\"od},
  title = {An analysis of the implicit choice set generation using the Constrained Multinomial Logit model},
  journal = {Transportation Research Record},
  year = {2010},
  volume = {2175},
  pages = {92-97},
  DOI = {10.3141/2175-11},
  note = {Accepted on Feb 24, 2010}}}
```

2009

Martinez F., Aguila F., Hurtubia R. (2009). The Constrained Multinomial Logit Model: A Semi-Compensatory Choice Model. Transportation Research Part B: Methodological 43 (3):365-377


@Article{MartAguiHurt08,
  author = {Francesco Martinez and Felipe Aguila and Ricardo Hurtubia},
  title = {The Constrained Multinomial Logit Model: A Semi-Compensatory Choice Model},
  journal = {Transportation Research Part B: Methodological},
  year = {2009},
  volume = {43},
  number = {3},
  pages = {365-377},
  DOI = {10.1016/j.trb.2008.06.006},
  note = {Accepted on Jun 17, 2008}}}

Books

Bierlaire M., de Palma A., Hurtubia R., Waddell P. (2015) Integrated Transport and Land Use Modeling for Sustainable Cities. EPFL Press , Lausanne, Switzerland [ISBN 978-2-940222-72-8]


@Book{BierDePaHurtWadd15,
  author = {Michel Bierlaire and Andr\'e {de Palma} and Ricardo Hurtubia and Paul Waddell},
  title = {Integrated Transport and Land Use Modeling for Sustainable Cities},
  publisher = {EPFL Press},
  address = {Lausanne, Switzerland},
  ISBN = {978-2-940222-72-8},
  year = {2015}}}

Book chapters

2015

de Palma A., Bierlaire M., Hurtubia R., Waddell P. (2015) Future challenges in transport and land use modeling. In Bierlaire, de Palma, Hurtubia and Waddell (ed) Integrated Transport and Land Use Modeling for Sustainable Cities, EPFL Press , Lausanne, Switzerland [ISBN 978-2-940222-72-8]


@InProceedings{dePaBierHurtWadd15,
  author = {Andr\'e {de Palma} and Michel Bierlaire and Ricardo Hurtubia and Paul Waddell},
  title = {Future challenges in transport and land use modeling},
  year = {2015},
  booktile = {Integrated Transport and Land Use Modeling for Sustainable Cities},
  editor = {Bierlaire and  de Palma and  Hurtubia and Waddell},
  publisher = {EPFL Press},
  address = {Lausanne, Switzerland},
  pages = {513-530}}}


@InProceedings{FaroHurtBier15,
  author = {Bilal Farooq and Ricardo Hurtubia and Michel Bierlaire},
  title = {Simulation based generation of a synthetic population for Brussels},
  year = {2015},
  booktile = {Integrated Transport and Land Use Modeling for Sustainable Cities},
  editor = {Bierlaire and  de Palma and  Hurtubia and Waddell},
  pages = {95-112}}}

Hurtubia R., Bierlaire M. (2015) Microsimulation for land use modeling: implementation challenges. In Bierlaire, de Palma, Hurtubia and Waddell (ed) Integrated Transport and Land Use Modeling for Sustainable Cities, EPFL Press , Lausanne, Switzerland [ISBN 978-2-940222-72-8]


@InProceedings{HurtBier15,
  author = {Ricardo Hurtubia and Michel Bierlaire},
  title = {Microsimulation for land use modeling: implementation challenges},
  year = {2015},
  booktile = {Integrated Transport and Land Use Modeling for Sustainable Cities},
  editor = {Bierlaire and  de Palma and  Hurtubia and Waddell},
  publisher = {EPFL Press},
  address = {Lausanne, Switzerland},
  pages = {41-54}}}

Waddell P., de Palma A., Bierlaire M., Hurtubia R. (2015) SustainCity: Overview and introduction. In Bierlaire, de Palma, Hurtubia and Waddell (ed) Integrated Transport and Land Use Modeling for Sustainable Cities, EPFL Press , Lausanne, Switzerland [ISBN 978-2-940222-72-8]


@InProceedings{WaddDePaBierHurt15,
  author = {Paul Waddell and Andr\'e {de Palma} and Michel Bierlaire and Ricardo Hurtubia},
  title = {SustainCity: Overview and introduction},
  year = {2015},
  booktile = {Integrated Transport and Land Use Modeling for Sustainable Cities},
  editor = {Bierlaire and  de Palma and  Hurtubia and Waddell},
  publisher = {EPFL Press},
  address = {Lausanne, Switzerland},
  pages = {1-14}}}

Technical reports

2013

Hurtubia R., Nguyen M., Glerum A., Bierlaire M. (2013). Integrating psychometric indicators in latent class choice models. Report TRANSP-OR 130423


@TechReport{HuNgGlBi_2013,
  author = {Ricardo Hurtubia and {My Hang} Nguyen and Aur\'elie Glerum and Michel Bierlaire},
  title = {Integrating psychometric indicators in latent class choice models},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2013},
  type = {Technical Report},
  number = {TRANSP-OR 130423},
  address = {Lausanne, Switzerland}}}

2012

Hurtubia R., Bierlaire M. (2012). Estimation of bid functions for location choice and price modeling with a latent variable approach. Report TRANSP-OR 120206


@TechReport{HurtBier2012,
  author = {Ricardo Hurtubia and Michel Bierlaire},
  title = {Estimation of bid functions for location choice and price modeling with a latent variable approach},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2012},
  type = {Technical Report},
  number = {TRANSP-OR 120206},
  address = {Lausanne, Switzerland}}}

2010

Hurtubia R., Gallay O., Bierlaire M. (2010). Attributes of Households, Locations and Real-Estate Markets for Land Use Modeling (SustainCity deliverable). Report TRANSP-OR 100419


@TechReport{sustaincity_WP2_7,
  author = {Ricardo Hurtubia and Olivier Gallay and Michel Bierlaire},
  title = {Attributes of Households, Locations and Real-Estate Markets for Land Use Modeling (SustainCity deliverable)},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2010},
  type = {Technical Report},
  number = {TRANSP-OR 100419},
  address = {Lausanne, Switzerland}}}

2009

Bierlaire M., Hurtubia R., Flötteröd G. (2009). An experimental analysis of the implicit choice set generation using the Constrained Multinomial Logit model. Report TRANSP-OR 090518


@TechReport{BierHurFlo09,
  author = {Michel Bierlaire and Ricardo Hurtubia and Gunnar Fl\"otter\"od},
  title = {An experimental analysis of the implicit choice set generation using the Constrained Multinomial Logit model},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2009},
  type = {Technical Report},
  number = {TRANSP-OR 090518},
  address = {Lausanne, Switzerland}}}

2008

Patterson Z., Hurtubia R. (2008). A Prototype Integrated Transportation Land-use Model for the Lausanne Region. Report


@TechReport{PattHurt2008,
  author = {Zachary Patterson and Ricardo Hurtubia},
  title = {A Prototype Integrated Transportation Land-use Model for the Lausanne Region},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2008},
  type = {Technical Report},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2013

Efthymiou D., Hurtubia R., Bierlaire M., Antoniou C. (2013) The Integrated Land Use and Transport Model of Brussels. Proceedings of the Swiss Transport Research Conference (STRC), April 24-26, Ascona, Switzerland


@InProceedings{EfthymiouSTRC2013a,
  author = {Dimitrios Efthymiou and Ricardo Hurtubia and Michel Bierlaire and Constantinos Antoniou},
  title = {The Integrated Land Use and Transport Model of Brussels},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), April 24-26},
  year = {2013},
  address = {Ascona, Switzerland}}}

2012

Hurtubia R., Bierlaire M., Martinez F. (2012) Dynamic microsimulation of location choices with a quasi-equilibrium auction approach. Proceedings of the 12th Swiss Transport Research Conference (STRC), May 2-4, Ascona, Switzerland


@InProceedings{STRC_2012_HURTUBIA,
  author = {Ricardo Hurtubia and Michel Bierlaire and Francesco Martinez},
  title = {Dynamic microsimulation of location choices with a quasi-equilibrium auction approach},
  booktime = {Proceedings of the 12th Swiss Transport Research Conference (STRC), May 2-4},
  year = {2012},
  address = {Ascona, Switzerland}}}

2011

Hurtubia R., Martinez F., Bierlaire M. (2011) Bid auction model for simultaneous determination of location and rent in land use microsimulation models. Proceedings of the XV Congreso Chileno de Ingeniería de TransporteOctober 3 - 6, Santiago, Chile


@InProceedings{Hurt_Chi2011,
  author = {Ricardo Hurtubia and Francesco Martinez and Michel Bierlaire},
  title = {Bid auction model for simultaneous determination of location and rent in land use microsimulation models},
  booktime = {Proceedings of the XV Congreso Chileno de Ingenier{\'\i}a de Transporte, October 3 - 6},
  year = {2011},
  address = {Santiago, Chile}}}

Hurtubia R., Bierlaire M. (2011) Bid rent model for simultaneous determination of location and rent in land use microsimulations. Proceedings of the Swiss Transport Research ConferenceMay 11-13, Ascona, Switzerland


@InProceedings{STRC_2011_HURTUBIA,
  author = {Ricardo Hurtubia and Michel Bierlaire},
  title = {Bid rent model for simultaneous determination of location and rent in land use microsimulations},
  booktime = {Proceedings of the Swiss Transport Research Conference, May 11-13},
  year = {2011},
  address = {Ascona, Switzerland}}}

2010


@InProceedings{Hurt_ETC2010,
  author = {Ricardo Hurtubia and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Estimation techniques for MEV models with sampling of alternatives},
  booktime = {Proceedings of the European Transport Conference, October 11 - 13},
  year = {2010},
  address = {Glasgow, Scotland}}}


@InProceedings{HURTUBIA_STRC_2010,
  author = {Ricardo Hurtubia and Francesco Martinez and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Comparative analysis of hedonic rents and maximum bids in a land-use simulation context},
  booktime = {Proceedings of the 10th Swiss Transport Research Conference, September 1 - 3, 2010},
  year = {2010},
  address = {Ascona, Switzerland}}}


@InProceedings{ATASOY_STRC2010,
  author = {Bilge Atasoy and Aur\'elie Glerum and Ricardo Hurtubia and Michel Bierlaire},
  title = {Demand for public transport services: Integrating qualitative and quantitative methods},
  booktime = {Proceedings of the 10th Swiss Transport Research Conference (STRC), September 1 - 3, 2010},
  year = {2010},
  address = {Ascona, Switzerland}}}


@InProceedings{BierHurtFloe_TRB10,
  author = {Michel Bierlaire and Ricardo Hurtubia and Gunnar Fl\"otter\"od},
  title = {An analysis of the implicit choice set generation using the Constrained Multinomial Logit model},
  booktime = {Proceedings of the Transportation Research Board 2010 Annual Meeting (TRB 2010), January 10-14},
  year = {2010},
  address = {Washington, D.C., United States}}}


@InProceedings{Hurt_WCTR10,
  author = {Ricardo Hurtubia and Bilge Atasoy and Aur\'elie Glerum and Anne Curchod and Michel Bierlaire},
  title = {Considering latent attitudes in mode choice: The case of Switzerland},
  booktime = {Proceedings of the World Conference on Transport Research (WCTR 2010), July 11-15},
  year = {2010},
  address = {Lisbon, Portugal}}}

2009


@InProceedings{BieHurFlo_kuhmo2009,
  author = {Michel Bierlaire and Ricardo Hurtubia and Gunnar Fl\"otter\"od},
  title = {An experimental analysis of the implicit choice set generation using the Constrained Multinomial Logit Model},
  booktime = {Proceedings of the 4th Kuhmo-Nectar Conference, July 2 - 3},
  year = {2009},
  address = {Copenhagen, Denmark}}}


@InProceedings{HurFloBier_ETC2009,
  author = {Ricardo Hurtubia and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Inferring the activities of smartphone users from context measurements using Bayesian inference and random utility models},
  booktime = {Proceedings of the European Transport Conference (ETC), October 5 - 7},
  year = {2009},
  address = {, The Netherlands}}}


@InProceedings{BIE_HUR_FLO_STRC2009,
  author = {Michel Bierlaire and Ricardo Hurtubia and Gunnar Fl\"otter\"od},
  title = {A comparative analysis of implicit and explicit methods to model choice set generation},
  booktime = {Proceedings of the 9th Swiss Transport Research Conference (STRC), September 9 - 11},
  year = {2009},
  address = {Ascona, Switzerland}}}

Talks

2012

Hurtubia R., Martinez F., Bierlaire M. Bid-auction framework for microsimulation of location choice with endogenous real estate prices September 06, 2012. 1st European Symposium on Quantitative Methods in Transportation Systems, EPFL, Lausanne, Switzerland.


@Misc{Hurt_latsis,
  author = {Ricardo Hurtubia and Francesco Martinez and Michel Bierlaire},
  title = {Bid-auction framework for microsimulation of location choice with endogenous real estate prices},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Hurt_latsis.pdf}},
  year = {2012},
  note = {Presented at 1st European Symposium on Quantitative Methods in Transportation Systems, EPFL, Lausanne, Switzerland}}}

Hurtubia R. SustainCity: Land use models for sustainable cities in Europe July 13, 2012. Simmobility long term model workshop, MIT (SMART), Singapore.


@Misc{RH_Sustaincity_SMART,
  author = {Ricardo Hurtubia},
  title = {SustainCity: Land use models for sustainable cities in Europe},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/RH_Sustaincity_SMART.pdf}},
  year = {2012},
  note = {Presented at Simmobility long term model workshop, MIT (SMART), Singapore}}}

Hurtubia R., Bierlaire M. Dynamic microsimulation of location choices with a quasi-equilibrium auction approach May 03, 2012. 12th Swiss Transport Research Conference, Ascona, Switzerland.


@Misc{Hurtubia_STRC2012,
  author = {Ricardo Hurtubia and Michel Bierlaire},
  title = {Dynamic microsimulation of location choices with a quasi-equilibrium auction approach},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Hurtubia_STRC2012.pdf}},
  year = {2012},
  note = {Presented at 12th Swiss Transport Research Conference, Ascona, Switzerland}}}

Hurtubia R., Martinez F., Bierlaire M. Bid-auction framework for microsimulation of location choice with endogenous real estate prices March 28, 2012. 2nd Workshop on Urban Dynamics - URBANICS II, Termas de Chillán, Chile.


@Misc{Hurt_Urbanics2012,
  author = {Ricardo Hurtubia and Francesco Martinez and Michel Bierlaire},
  title = {Bid-auction framework for microsimulation of location choice with endogenous real estate prices},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Hurt_Urbanics2012.pdf}},
  year = {2012},
  note = {Presented at 2nd Workshop on Urban Dynamics - URBANICS II, Termas de Chill\án, Chile}}}

2011

Hurtubia R., Martinez F., Bierlaire M. Bid-auction framework for microsimulation of location choice with endogenous real estate prices October 06, 2011. XV Congreso Chileno de Ingeniería de Transporte, Santiago, Chile.


@Misc{Hurtubia_XVCCH,
  author = {Ricardo Hurtubia and Francesco Martinez and Michel Bierlaire},
  title = {Bid-auction framework for microsimulation of location choice with endogenous real estate prices},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Hurtubia_XVCCH.pdf}},
  year = {2011},
  note = {Presented at XV Congreso Chileno de Ingenier\ía de Transporte, Santiago, Chile}}}

Hurtubia R., Martinez F., Bierlaire M. Modeling residential location choice and real estate prices with a bid-auction approach August 31, 2011. 51st European Congress of the Regional Science Association International (ERSA).


@Misc{Hurtubia_ERSA_2011,
  author = {Ricardo Hurtubia and Francesco Martinez and Michel Bierlaire},
  title = {Modeling residential location choice and real estate prices with a bid-auction approach},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Hurtubia_ERSA_2011.pdf}},
  year = {2011},
  note = {Presented at 51st European Congress of the Regional Science Association International (ERSA)}}}

Hurtubia R., Martinez F., Bierlaire M. Modeling residential location choice and real estate prices with a bid-auction approach August 25, 2011. Seventh Workshop on Discrete Choice Models.


@Misc{Hurtubia_DCA2011,
  author = {Ricardo Hurtubia and Francesco Martinez and Michel Bierlaire},
  title = {Modeling residential location choice and real estate prices with a bid-auction approach},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Hurtubia_DCA2011.pdf}},
  year = {2011},
  note = {Presented at Seventh Workshop on Discrete Choice Models}}}

Hurtubia R., Bierlaire M. Bid rent model for simultaneous determination of location and rent in land use microsimulations May 12, 2011. Swiss Transport Research Conference, Ascona, Switzerland.


@Misc{STRC_2011_HURTUBIA,
  author = {Ricardo Hurtubia and Michel Bierlaire},
  title = {Bid rent model for simultaneous determination of location and rent in land use microsimulations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/STRC_2011_HURTUBIA.pdf}},
  year = {2011},
  note = {Presented at Swiss Transport Research Conference, Ascona, Switzerland}}}

2010

Hurtubia R., Flötteröd G., Bierlaire M. T�cnicas para la estimaci�n de modelos MEV con muestreo de alternativas October 20, 2010. Modelos avanzados de demanda, Universidad de Chile, Santiago, Chile.


@Misc{hurt_u_chile,
  author = {Ricardo Hurtubia and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {T\'ecnicas para la estimaci\'on de modelos MEV con muestreo de alternativas},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/hurt_u_chile.pdf}},
  year = {2010},
  note = {Presented at Modelos avanzados de demanda, Universidad de Chile, Santiago, Chile}}}

Hurtubia R., Flötteröd G., Bierlaire M. Estimation techniques for MEV models with sampling of alternatives October 11, 2010. European Transport Conference, Glasgow, Scotland.


@Misc{hurt_ETC2010,
  author = {Ricardo Hurtubia and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Estimation techniques for MEV models with sampling of alternatives},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/hurt_ETC2010.pdf}},
  year = {2010},
  note = {Presented at European Transport Conference, Glasgow, Scotland}}}

Hurtubia R., Martinez F., Flötteröd G., Bierlaire M. Comparative analysis of hedonic rents and maximum bids in a land-use simulation context October 03, 2010. Swiss Transport Research Conference, Ascona, Switzerland.


@Misc{Hurtubia_STRC2010,
  author = {Ricardo Hurtubia and Francesco Martinez and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Comparative analysis of hedonic rents and maximum bids in a land-use simulation context},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Hurtubia_STRC2010.pdf}},
  year = {2010},
  note = {Presented at Swiss Transport Research Conference, Ascona, Switzerland}}}

Hurtubia R., Flötteröd G., Bierlaire M. Bootstrapping approach for sampling of alternatives in MEV models August 20, 2010. Sixth Workshop on Discrete Choice Models, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.


@Misc{Hur_Flo_Bie_DCA10,
  author = {Ricardo Hurtubia and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Bootstrapping approach for sampling of alternatives in MEV models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Hur_Flo_Bie_DCA10.pdf}},
  year = {2010},
  note = {Presented at Sixth Workshop on Discrete Choice Models, Ecole Polytechnique F\éd\érale de Lausanne, Lausanne, Switzerland}}}

Hurtubia R. SustainCity: Development of an integrated UrbanSim-MATsim model of Brussels July 16, 2010. Integrated Modeling and Simulation Workshop (iTEAM), Instituto Superior Técnico - IST, Lisbon, Portugal.


@Misc{sustaincity_iTeam10,
  author = {Ricardo Hurtubia},
  title = {SustainCity: Development of an integrated UrbanSim-MATsim model of Brussels },
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/sustaincity_iTeam10.pdf}},
  year = {2010},
  note = {Presented at Integrated Modeling and Simulation Workshop (iTEAM), Instituto Superior T\écnico - IST, Lisbon, Portugal}}}

Hurtubia R., Atasoy B., Glerum A., Curchod A., Bierlaire M. Considering latent attitudes in mode choice: The case of Switzerland July 13, 2010. World Conference on Transport Research, Lisbon, Portugal.


@Misc{WCTR_2010_hurtubia,
  author = {Ricardo Hurtubia and Bilge Atasoy and Aur\'elie Glerum and Anne Curchod and Michel Bierlaire},
  title = {Considering latent attitudes in mode choice: The case of Switzerland},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/WCTR_2010_hurtubia.pdf}},
  year = {2010},
  note = {Presented at World Conference on Transport Research, Lisbon, Portugal}}}

Hurtubia R., Flötteröd G., Bierlaire M. Inferring activity choice from context measurements using Bayesian inference and random utility models February 25, 2010. 1st Workshop on Urban Dynamics - URBANICS, Marbella, Chile.


@Misc{activ_infer_URBANICS,
  author = {Ricardo Hurtubia and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Inferring activity choice from context measurements using Bayesian inference and random utility models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/activ_infer_URBANICS.pdf}},
  year = {2010},
  note = {Presented at 1st Workshop on Urban Dynamics - URBANICS, Marbella, Chile}}}

Lavadinho S., Hurtubia R. Evaluating the potential for intercity travel combining public transport and active modes February 25, 2010. 1st Workshop on Urban Dynamics - URBANICS, Marbella, Chile.


@Misc{Velopass_URBANICS,
  author = {Sonia Lavadinho and Ricardo Hurtubia},
  title = {Evaluating the potential for intercity travel combining public transport and active modes},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Velopass_URBANICS.pdf}},
  year = {2010},
  note = {Presented at 1st Workshop on Urban Dynamics - URBANICS, Marbella, Chile}}}

2009

Hurtubia R., Bierlaire M., Flötteröd G. Inferring the activities of smartphone users from context measurements using Bayesian inference and random utility models October 05, 2009. European Transport Conference, Leeuwenhorst, The Netherlands.


@Misc{hurbieflo_ETC2009,
  author = {Ricardo Hurtubia and Michel Bierlaire and Gunnar Fl\"otter\"od},
  title = {Inferring the activities of smartphone users from context measurements using Bayesian inference and random utility models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/hurbieflo_ETC2009.pdf}},
  year = {2009},
  note = {Presented at European Transport Conference, Leeuwenhorst, The Netherlands}}}

Bierlaire M., Hurtubia R., Flötteröd G. A comparative analysis of implicit and explicit methods to model choice set generation September 09, 2009. 9th Swiss Transport Research Conference, Ascona, Switzerland.


@Misc{biehurflo_STRC2009,
  author = {Michel Bierlaire and Ricardo Hurtubia and Gunnar Fl\"otter\"od},
  title = {A comparative analysis of implicit and explicit methods to model choice set generation},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/biehurflo_STRC2009.pdf}},
  year = {2009},
  note = {Presented at 9th Swiss Transport Research Conference, Ascona, Switzerland}}}

Hurtubia R., Bierlaire M., Flötteröd G. Inferring activities from context measurements using Bayesian inference and random utility models August 28, 2009. Workshop on discrete choice models, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.


@Misc{Hur_DCA09,
  author = {Ricardo Hurtubia and Michel Bierlaire and Gunnar Fl\"otter\"od},
  title = {Inferring activities from context measurements using Bayesian inference and random utility models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Hur_DCA09.pdf}},
  year = {2009},
  note = {Presented at Workshop on discrete choice models, Ecole Polytechnique F\éd\érale de Lausanne, Lausanne, Switzerland}}}

Bierlaire M., Hurtubia R., Flötteröd G. Experimental analysis of the implicit choice set generation using the Constrained Multinomial Logit June 02, 2009. 4th Kuhmo-Nectar Conference, Denmark Technical University, Copenhagen, Denmark.


@Misc{HUR_KUHMO09,
  author = {Michel Bierlaire and Ricardo Hurtubia and Gunnar Fl\"otter\"od},
  title = {Experimental analysis of the implicit choice set generation using the Constrained Multinomial Logit},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/HUR_KUHMO09.pdf}},
  year = {2009},
  note = {Presented at 4th Kuhmo-Nectar Conference, Denmark Technical University, Copenhagen, Denmark}}}

2008

Patterson Z., Bierlaire M., Hurtubia R. Development of prototype UrbanSim models October 16, 2008. 8th Swiss Transport Research Conference, Monte Veritá, Ascona.


@Misc{PAT_STRC08,
  author = {Zachary Patterson and Michel Bierlaire and Ricardo Hurtubia},
  title = {Development of prototype UrbanSim models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/PAT_STRC08.pdf}},
  year = {2008},
  note = {Presented at 8th Swiss Transport Research Conference, Monte Verit\á, Ascona}}}

Patterson Z., Bierlaire M., Hurtubia R. Development of prototype UrbanSim models October 06, 2008. European Transport Conference 2008, The Netherlands.


@Misc{patETC08,
  author = {Zachary Patterson and Michel Bierlaire and Ricardo Hurtubia},
  title = {Development of prototype UrbanSim models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/patETC08.pdf}},
  year = {2008},
  note = {Presented at European Transport Conference 2008, The Netherlands}}}

Martinez F., Aguila F., Hurtubia R. The Constrained Multinomial Logit: A semi�compensatory choice model August 28, 2008. Workshop on discrete choice models.


@Misc{WDCM08_RH,
  author = {Francesco Martinez and Felipe Aguila and Ricardo Hurtubia},
  title = {The Constrained Multinomial Logit: A semi{\textendash}compensatory choice model},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/WDCM08_RH.pdf}},
  year = {2008},
  note = {Presented at Workshop on discrete choice models}}}

Awards

2009

Ricardo Hurtubia. Ranked 3rd in the TOP 25 hottest articles of Transportation Research Part B for January-March 2009, Transportation Research Part B.
Martinez, F., Aguila, F., and Hurtubia, R. (2009). The Constrained Multinomial Logit Model: A Semi-Compensatory Choice Model, Transportation Research Part B: Methodological 43(3):365-377. doi:10.1016/j.trb.2008.06.006.

Reviewing

Research projects

2010

SustainCity: Micro-simulation for the prospective of sustainable cities in Europe

The goal of this project is to address the modelling and computational issues of integrating modern mobility simulations with the latest micro-simulation land use models. The project intends to advance the state-of-the-art in the field of the micro-simulation of prospective integrated models of Land-Use and Transport (LUTI). On the modelling side, the main challenges are to integrate a demographic evolution module, to add an environmental module, to improve the overall consistency and, last but not least, to deal with the multi-scale aspects of the problem: several time horizons and spatial resolutions are involved.
- Jan 01, 2010 - Dec 31, 2012
- Sponsor: European Commission
- Principal investigator: Michel Bierlaire
- Project managers: Ricardo Hurtubia, Bilal Farooq
- Collaborator: Dimitrios Efthymiou

EPFL courses

Fall 2010

Introduction � l'optimisation diff�rentiable.
- Level: Bachelor
- Sections: Mechanical Engineering, Electrical and Electronics Engineering, Chemistry and Chemical Engineering, Computer science
- Lecturer: Micha�l Th�mans
- Teaching assistants: Bilge Atasoy, Ricardo Hurtubia

Fall 2009

Mod�lisation des syst�mes �nergie et Transports.
- Level: Master
- Sections: Civil Engineering, Electrical and Electronics Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Javier Cruz, Ricardo Hurtubia
- Webpage: http://moodle.epfl.ch/course/view.php?id=1251

Fall 2008

Mod�lisation des syst�mes �nergie et Transports.
- Level: Master
- Sections: Civil Engineering, Electrical and Electronics Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Javier Cruz, Ricardo Hurtubia
- Webpage: http://moodle.epfl.ch/course/view.php?id=1251

Master theses

2012

Mode choice models for the city of Nice using psychometric indicators and latent variables, My Hang Nguyen (Civil Engineering)
- Supervision: Michel Bierlaire, Ricardo Hurtubia, Aurélie Glerum
- External expert: Valérie Attas, Veolia

2011

The urban development effects of a metro line extension : western arm of the Orange Line from Montreal to Laval, Aurélien Odobert (Civil Engineering)
- Supervision: Michel Bierlaire, Ricardo Hurtubia
- External expert: Prof. Zachary Patterson

2010

Analyse des relations entre la forme urbaine, l'accessibilité aux transports en commun et la mobilité quotidienne des habitants de la ville de Québec, Canada, Laetitia Bettex (Civil Engineering)
- Supervision: Michel Bierlaire, Ricardo Hurtubia
- External expert: Luis Miranda-Moreno, McGill University, Canada

2009-2010

Combining heterogeneous sensor information for the activity tracking of smart phone users, Willem Himpe (None)
- Supervision: Michel Bierlaire, Gunnar Flötteröd, Ricardo Hurtubia
- External expert: Prof. Ben Immers, Dr. Chris Tampere

Semester projects

2012

Generation and Simulation of MATSim plans for Brussels, Sona Hunanyan (Mathematics)

Supervision: Ricardo Hurtubia
The objective of this project is to generate travel plans for a synthetic population for the city of Brussels and simulate their travel behavior with the transport microsimulation software MATSim. The plans will be generated based on available census and travel survey data. The network for Brussels will be provided. The project considers the implementation of a prototype (simplified) model and a sensitivity analysis of the simulation results

2011-2012

Mode choice model for the city of Nice, My Hang Nguyen (Civil Engineering)

Supervision: Ricardo Hurtubia
The goal of this project is to implement a mode choice model for the city of Nice. This model will be used by a public transport operator in order to identify the potentials for increasing market shares for public transport in this area, based on a better understanding of the demand structure between public transport and car. The model will be estimated on data collected from a recent Household Travel Survey which sampled around 6500 households. Information on travel times and costs is available for trips performed by public transport but similar information has to be collected for private transport modes. The model will be implemented and estimated using BIOGEME, an estimation software developed by the Transport and Mobility Laboratory. The project will be conducted in collaboration with Veolia Transport.

Mobility identification from smartphone GPS data, Denis Garcia (Mathematics)

Supervision: Jingmin Chen, Ricardo Hurtubia
We record data from smarpthones over 2 years from about 180 N95 smartphone user. The data includes, GPS, nearby Bluetooth devices, nearby WIFI spots, calendar, etc. This project aims at identifying mobility history (trips and destinations) from raw data. The project will be based on some existing solutions (with existing Java and Python code). And the student will improve or develop a new software to process the data, and generate and visualize the data. You can choose among Python, Java or C++ for the project. The objectives of the project are following (You can choose among them): 1. Identify trips (origin, destination and time) from the GPS data. 2. Detect transportation mode (car, or public transport, etc) from the trips.

2010-2011

Prototype MATSim model for Brussels, Sohrab Sahaleh (Civil Engineering)

Supervision: Gunnar Flötteröd, Ricardo Hurtubia

Quantitative analysis of urban sustainability indicators, Timothée Vincent (Civil Engineering)

Supervision: Gunnar Flötteröd, Ricardo Hurtubia

Estimation and simulation of bid-auction and choice location models, Thibaut Dubernet (Civil Engineering)

Supervision: Ricardo Hurtubia, Thomas Robin

The urban development effects of the construction of a metro line, Aurélien Odobert (Civil Engineering)

Supervision: Ricardo Hurtubia

2010

Destination choice models for a free bicycle system, Zehra Onen (Mathematics)

Supervision: Ricardo Hurtubia, Thomas Robin
Several cities around the world are implementing �free bicycle systems� that consist of a network of stations were bicycles are available for users to �pay and ride�. Usually these systems allow users to return the bicycle in a different station from the one where it was taken. The project consists in estimating destination choice models that should allow to predict the station where a bicycle will be returned, given the origin, the time of the day, the length (in time) of the trip and the characteristics of the surroundings of each station. The project considers 3 main stages: Data analysis, model estimation (with the software BIOGEME) and model validation.

2009-2010

Un modèle préliminaire d'UrbanSim pour Lausanne, Sarah Droz (Civil Engineering)

Supervision: Ricardo Hurtubia
Depuis longtemps l'importance de l'interaction entre la forme urbaine, les infrastructures de transports et la demande de transport a �t� reconnu. Par contre ce n'est que r�cemment que des m�thodes analytiques tel que des syst�mes de mod�lisation de transport et d'occupation du sol ont �t� d�velopp�es pour pouvoir mieux comprendre ces interactions. UrbanSim est un syst�me de mod�lisation d'occupation du sol qui devient de plus en plus utilis�. L'objectif de ce projet est de monter un mod�le pr�liminaire d'UrbanSim pour la ville de Lausanne.

Modeling the effects of spatio-temporal flexibility in activity scheduling, Laetitia Bettex (Civil Engineering)

Supervision: Ricardo Hurtubia
In travel demand modeling there is an increasing interest in understanding and modeling the planning or scheduling of activities over space and time. This is due to the fact that a better understanding of activity scheduling processes will contribute to the development of activity scheduling models and an understanding of the short (week) dynamics. In the literature, very little is known about the activity scheduling processes and the spatio-temporal flexibility of activities. For an individual, each (work, leisure, shopping) activity in a day can be classified according to its level of flexibility in routine, pre-arrange and spontaneous in the two dimensions, space and time. Based on his spatio-temporal constraints, an individual is making a decision to assign its degree of flexibility. The objective of this research is to investigate how socio-demographics of individual/households, life-stage, ICT access (cell phone/internet), accessibility to services, and activity attributes (time, duration, week day) affect the spatio-temporal flexibility of out-of home activities. The analysis will be done using data from a survey conducted in Qu�bec City from 2002-2006 to estimate activity-choice models.

Modeling the link between transport and land-use with UrbanSim, Peter Goodings (Civil Engineering)

Supervision: Ricardo Hurtubia
Location of activities in the city has an important effect on travel demand and on the transport system�s performance. Land-use models are used to forecast location in the city, in order to help decision-making for urban and transport planning. Because of its flexibility, UrbanSim is an increasingly popular alternative for integrated land-use and transport modeling. However, UrbanSim is not exactly an integrated model but a land-use model that works together with a transportation model. This makes relevant to understand if the interaction between transport and land use is properly modeled by UrbanSim. The objective of this project is to implement the latest stable version of UrbanSim for the city of Brussels, using data that was already collected to implement an older version of the model. The project also considers a deeper analysis on how UrbanSim accounts for the relation between transport and land use.

2008-2009

Estimation of household location choice models , Antonin Danalet (Mathematics)

Supervision: Ricardo Hurtubia
Location of activities in the city has an important effect on travel demand and on the transport system�s performance. Land-use models are used to forecast location in the city, in order to help decision-making for urban and transport planning. To predict the location of agents it�s first necessary to estimate �location choice models� (which are usually a part of the land-use model). These models are estimated through maximum-likelihood methods from observed location data. The aim of the project is to estimate several different household location choice models for the same city, using different specifications for the household�s utility function and testing different methods to deal with �attribute�s thresholds� in the utility. The estimations will be made using Biogeme, databases will be provided.

Ilaria Vacca

Ilaria Vacca has been a member of the laboratory from Feb 01, 2007 to Jun 01, 2011

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Ilaria Vacca.

Journal articles

2013

Umang N., Bierlaire M., Vacca I. (2013). Exact and Heuristic Methods to Solve the Berth Allocation Problem in Bulk Ports. Transportation Research Part E: Logistics and Transportation Review 54 :14-31

In this paper, we study the dynamic hybrid berth allocation problem in bulk ports with the objective to minimize the total service times of the vessels. We propose two exact methods based on mixed integer progra mming and generalized set partitionin g, and a heuristic method based on squeaky wheel optimization, explicitly considering the cargo type on the vessel. The formulations are compared through extensive numer ical experiments based on instances inspired from real bulk port data. The results indicate that the set partitioning method and the heuristic method can be used to obtain near-optimal solutions for even larger problem size.
```
@Article{UmanBierVac13,
  author = {Nitish Umang and Michel Bierlaire and Ilaria Vacca},
  title = {Exact and Heuristic Methods to Solve the Berth Allocation Problem in Bulk Ports},
  journal = {Transportation Research Part E: Logistics and Transportation Review},
  year = {2013},
  volume = {54},
  pages = {14-31},
  DOI = {10.1016/j.tre.2013.03.003},
  note = {Accepted on Mar 16, 2013}}}
```

Vacca I., Salani M., Bierlaire M. (2013). An exact algorithm for the integrated planning of berth allocation and quay crane assignment. Transportation Science 47 (2):148-161


@Article{VaccSalaBier12,
  author = {Ilaria Vacca and Matteo Salani and Michel Bierlaire},
  title = {An exact algorithm for the integrated planning of berth allocation and quay crane assignment},
  journal = {Transportation Science},
  year = {2013},
  volume = {47},
  number = {2},
  pages = {148-161},
  DOI = {10.1287/trsc.1120.0428},
  note = {Accepted on Mar 17, 2012}}}

2011

Salani M., Vacca I. (2011). Branch and Price for the Vehicle Routing Problem with Discrete Split Deliveries and Time Windows. European Journal of Operational Research 213 (3):470-477

The Discrete Split Delivery Vehicle Routing Problem with Time Windows (DSDVRPTW) consists of designing the optimal set of routes to serve, at least cost, a given set of customers while respecting constraints on vehicles' capacity and customer time windows. Each customer can be visited by more than one vehicle since each customer's demand, discretized in items, can be split in orders, i.e., feasible combinations of items. In this work, we model the DSDVRPTW assuming that all feasible orders are known in advance. Remarkably, service time at customer's location depends on the delivered combination of items, which is a modeling feature rarely found in literature. We present a flow-based mixed integer program for the DSDVRPTW, we reformulate it via Dantzig-Wolfe and we apply column generation. The proposed branch-and-price algorithm largely outperforms a commercial solver, as shown by computational experiments on Solomon-based instances. A comparison in terms of complexity between constant service time vs delivery-dependent service time is presented and potential savings are discussed. (C) 2011 Elsevier B.V. All rights reserved.
```
@Article{SalaVacc11,
  author = {Matteo Salani and Ilaria Vacca},
  title = {Branch and Price for the Vehicle Routing Problem with Discrete Split Deliveries and Time Windows},
  journal = {European Journal of Operational Research},
  year = {2011},
  volume = {213},
  number = {3},
  pages = {470-477},
  DOI = {10.1016/j.ejor.2011.03.023},
  note = {Accepted on Mar 09, 2011}}}
```

2010

Giallombardo G., Moccia L., Salani M., Vacca I. (2010). Modeling and Solving the Tactical Berth Allocation Problem. Transportation Research Part B: Methodological 44 (2):232-245

In this paper we integrate at the tactical level two decision problems arising in container terminals: the berth allocation problem, which consists of assigning and scheduling incoming ships to berthing positions, and the quay crane assignment problem, which assigns to incoming ships a certain quay crane profile (i.e. number of quay cranes per working shift). We present two formulations: a mixed integer quadratic program and a linearization which reduces to a mixed integer linear program. The objective function aims, on the one hand, to maximize the total value of chosen quay crane profiles and, oil the other hand, to minimize the housekeeping costs generated by transshipment flows between ships. To Solve the problem we developed a heuristic algorithm which combines tabu search methods and mathematical programming techniques. Computational results on instances based on real data are presented and compared to those obtained through a commercial solver. (C) 2009 Elsevier Ltd. All rights reserved.
```
@Article{GialMoccSalaVacc09,
  author = {Giovanni Giallombardo and Luigi Moccia and Matteo Salani and Ilaria Vacca},
  title = {Modeling and Solving the Tactical Berth Allocation Problem},
  journal = {Transportation Research Part B: Methodological},
  year = {2010},
  volume = {44},
  number = {2},
  pages = {232-245},
  DOI = {10.1016/j.trb.2009.07.003},
  note = {Accepted on Jul 15, 2009}}}
```

Technical reports

2012

Umang N., Bierlaire M., Vacca I. (2012). Exact and heuristic methods to solve the berth allocation problem in bulk ports. Report TRANSP-OR 120116


@TechReport{NitBierVac12,
  author = {Nitish Umang and Michel Bierlaire and Ilaria Vacca},
  title = {Exact and heuristic methods to solve the berth allocation problem in bulk ports},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2012},
  type = {Technical Report},
  number = {TRANSP-OR 120116},
  address = {Lausanne, Switzerland}}}

2011

Vacca I., Salani M., Bierlaire M. (2011). An exact algorithm for the integrated planning of berth allocation and quay crane assignment. Report TRANSP-OR 110323


@TechReport{VaccSalaBier2011,
  author = {Ilaria Vacca and Matteo Salani and Michel Bierlaire},
  title = {An exact algorithm for the integrated planning of berth allocation and quay crane assignment},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2011},
  type = {Technical Report},
  number = {TRANSP-OR 110323},
  address = {Lausanne, Switzerland}}}

2010

Salani M., Vacca I., Bierlaire M. (2010). Two-stage column generation. Report TRANSP-OR 101130


@TechReport{SalaVaccBier2010,
  author = {Matteo Salani and Ilaria Vacca and Michel Bierlaire},
  title = {Two-stage column generation},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2010},
  type = {Technical Report},
  number = {TRANSP-OR 101130},
  address = {Lausanne, Switzerland}}}

2009

Salani M., Vacca I. (2009). Branch and Price for the Vehicle Routing Problem with Discrete Split Deliveries and Time Windows. Report TRANSP-OR 091224


@TechReport{SalaniVacca09,
  author = {Matteo Salani and Ilaria Vacca},
  title = {Branch and Price for the Vehicle Routing Problem with Discrete Split Deliveries and Time Windows},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2009},
  type = {Technical Report},
  number = {TRANSP-OR 091224},
  address = {Lausanne, Switzerland}}}

Giallombardo G., Moccia L., Salani M., Vacca I. (2009). Modeling and Solving the Tactical Berth Allocation Problem. Report TRANSP-OR 090312


@TechReport{GialMoccSalaVacc09,
  author = {Giovanni Giallombardo and Luigi Moccia and Matteo Salani and Ilaria Vacca},
  title = {Modeling and Solving the Tactical Berth Allocation Problem},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2009},
  type = {Technical Report},
  number = {TRANSP-OR 090312},
  address = {Lausanne, Switzerland}}}

2008

Salani M., Vacca I. (2008). Two-stage column generation and applications. Report TRANSP-OR 081002


@TechReport{SalaniVacca08,
  author = {Matteo Salani and Ilaria Vacca},
  title = {Two-stage column generation and applications},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2008},
  type = {Technical Report},
  number = {TRANSP-OR 081002},
  address = {Lausanne, Switzerland}}}

Vacca I., Bierlaire M., Salani M. (2008). Optimization at Container Terminals: Status, Trends and Perspectives (revised version). Report TRANSP-OR 080528


@TechReport{VaccBierSala2007rev,
  author = {Ilaria Vacca and Michel Bierlaire and Matteo Salani},
  title = {Optimization at Container Terminals: Status, Trends and Perspectives (revised version)},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2008},
  type = {Technical Report},
  number = {TRANSP-OR 080528},
  address = {Lausanne, Switzerland}}}

2007

Vacca I., Bierlaire M., Salani M. (2007). Optimization at Container Terminals: Status, Trends and Perspectives. Report TRANSP-OR 071204


@TechReport{VaccBierSala07,
  author = {Ilaria Vacca and Michel Bierlaire and Matteo Salani},
  title = {Optimization at Container Terminals: Status, Trends and Perspectives},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2007},
  type = {Technical Report},
  number = {TRANSP-OR 071204},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2011

Umang N., Bierlaire M., Vacca I. (2011) The Berth Allocation Problem in Bulk Ports. Proceedings of the 11th Swiss Transport Research Conference (STRC), May 11-13, Monte Verita / Ascona, Switzerland


@InProceedings{Nitish_STRC2011,
  author = {Nitish Umang and Michel Bierlaire and Ilaria Vacca},
  title = {The Berth Allocation Problem in Bulk Ports},
  booktime = {Proceedings of the 11th Swiss Transport Research Conference (STRC), May 11-13},
  year = {2011},
  address = {Monte Verita / Ascona, Switzerland}}}

2010


@InProceedings{VaccSalaBier10_STRC,
  author = {Ilaria Vacca and Matteo Salani and Michel Bierlaire},
  title = {Optimization of operations in container terminals: hierarchical vs integrated approaches},
  booktime = {Proceedings of the 10th Swiss Transport Research Conference (STRC), September 1-3},
  year = {2010},
  address = {Ascona, Switzerland}}}

2009


@InProceedings{GialMoccSalaVacc09_ETC,
  author = {Giovanni Giallombardo and Luigi Moccia and Matteo Salani and Ilaria Vacca},
  title = {Models and Heuristics for the Tactical Berth Allocation Problem with Quay-Crane Assignment and Transshipment Costs},
  booktime = {Proceedings of the European Transport Conference (ETC), October 5-7},
  year = {2009},
  address = {Leeuwenhorst conference centre, The Netherlands}}}


@InProceedings{VaccSala09_STRC,
  author = {Ilaria Vacca and Matteo Salani},
  title = {The Vehicle Routing Problem with Discrete Split Delivery and Time Windows},
  booktime = {Proceedings of the 9th Swiss Transport Research Conference (STRC), September 9-11},
  year = {2009},
  address = {Ascona, Switzerland}}}

2008


@InProceedings{GialMoccSalaVacc08_ETC,
  author = {Giovanni Giallombardo and Luigi Moccia and Matteo Salani and Ilaria Vacca},
  title = {The Tactical Berth Allocation Problem (TBAP) with quay crane assignment and transshipment-related quadratic yard costs},
  booktime = {Proceedings of the European Transport Conference (ETC), October 6-8},
  year = {2008},
  address = {Leeuwenhorst conference centre, The Netherlands}}}


@InProceedings{VaccSalaBier08_STRC,
  author = {Ilaria Vacca and Matteo Salani and Michel Bierlaire},
  title = {Two-stage column generation and applications in container terminal management},
  booktime = {Proceedings of the 8th Swiss Transport Research Conference (STRC), October 15-17},
  year = {2008},
  address = {Ascona, Switzerland}}}

2007


@InProceedings{VaccBierSala07,
  author = {Ilaria Vacca and Michel Bierlaire and Matteo Salani},
  title = {Optimization at Container Terminals: Status, Trends and Perspectives},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), September 12-14},
  year = {2007},
  address = {Ascona, Switzerland}}}

Talks

2011

Vacca I., Salani M., Bierlaire M. Container terminal management: integrated models and large-scale optimization algorithms March 07, 2011. (Invited speaker)Seminar series, Università degli Studi di Roma "Tor Vergata", Rome, Italy.


@Misc{CT_ROMA_11,
  author = {Ilaria Vacca and Matteo Salani and Michel Bierlaire},
  title = {Container terminal management: integrated models and large-scale optimization algorithms},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/CT_ROMA_11.pdf}},
  year = {2011},
  note = {Presented at Seminar series, Universit\à degli Studi di Roma \"Tor Vergata\", Rome, Italy}}}

2010

Vacca I., Salani M., Bierlaire M. Optimization in container terminals: hierarchical vs integrated solution approaches September 02, 2010. 10th Swiss Transport Research Conference (STRC), Ascona, Switzerland.


@Misc{CT_STRC_10,
  author = {Ilaria Vacca and Matteo Salani and Michel Bierlaire},
  title = {Optimization in container terminals: hierarchical vs integrated solution approaches},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/CT_STRC_10.pdf}},
  year = {2010},
  note = {Presented at 10th Swiss Transport Research Conference (STRC), Ascona, Switzerland}}}

Vacca I., Salani M., Bierlaire M. Recursive column generation for the Tactical Berth Allocation Problem June 24, 2010. TRISTAN VII - Triennial Symposium on Transportation Analysis , , Tromso, Norway.


@Misc{CT_TRISTAN,
  author = {Ilaria Vacca and Matteo Salani and Michel Bierlaire},
  title = {Recursive column generation for the Tactical Berth Allocation Problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/CT_TRISTAN.pdf}},
  year = {2010},
  note = {Presented at TRISTAN VII - Triennial Symposium on Transportation Analysis , , Tromso, Norway}}}

Vacca I., Salani M., Bierlaire M. The Tactical Berth Allocation Problem: integrated optimization in container terminals May 19, 2010. (Invited speaker)Seminar series, Dalle Molle Institute for Artificial Intelligence (IDSIA), Lugano, Switzerland.


@Misc{CT_IDSIA_10,
  author = {Ilaria Vacca and Matteo Salani and Michel Bierlaire},
  title = {The Tactical Berth Allocation Problem: integrated optimization in container terminals},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/CT_IDSIA_10.pdf}},
  year = {2010},
  note = {Presented at Seminar series,  Dalle Molle Institute for Artificial Intelligence (IDSIA), Lugano, Switzerland}}}

Vacca I., Salani M. The Vehicle Routing Problem with Discrete Split Deliveries and Time Windows January 18, 2010. 3ème cycle romand de recherche opérationnelle, Zinal, Switzerland.


@Misc{CT_ZINAL_10,
  author = {Ilaria Vacca and Matteo Salani},
  title = {The Vehicle Routing Problem with Discrete Split Deliveries and Time Windows},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/CT_ZINAL_10.pdf}},
  year = {2010},
  note = {Presented at 3\ème cycle romand de recherche op\érationnelle, Zinal, Switzerland}}}

2009

Giallombardo G., Moccia L., Salani M., Vacca I. Models and Heuristics for the Tactical Berth Allocation Problem with Quay-Crane Assignment and Transshipment Costs October 05, 2009. European Transport Conference (ETC), The Netherlands.


@Misc{CT_ETC_09,
  author = {Giovanni Giallombardo and Luigi Moccia and Matteo Salani and Ilaria Vacca},
  title = {Models and Heuristics for the Tactical Berth Allocation Problem with Quay-Crane Assignment and Transshipment Costs},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/CT_ETC_09.pdf}},
  year = {2009},
  note = {Presented at European Transport Conference (ETC), The Netherlands}}}

Vacca I., Salani M. The Vehicle Routing Problem with Discrete Split Delivery and Time Windows September 11, 2009. 9th Swiss Transport Research Conference (STRC), Ascona, Switzerland.


@Misc{CT_STRC_09,
  author = {Ilaria Vacca and Matteo Salani},
  title = {The Vehicle Routing Problem with Discrete Split Delivery and Time Windows},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/CT_STRC_09.pdf}},
  year = {2009},
  note = {Presented at 9th Swiss Transport Research Conference (STRC), Ascona, Switzerland}}}

Salani M., Vacca I. An exact algorithm for the discrete split delivery vehicle routing problem with time windows July 06, 2009. 23rd European Conference on Operational Research (EURO), Bonn, Germany.


@Misc{EURO09_IV,
  author = {Matteo Salani and Ilaria Vacca},
  title = {An exact algorithm for the discrete split delivery vehicle routing problem with time windows},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/EURO09_IV.pdf}},
  year = {2009},
  note = {Presented at 23rd European Conference on Operational Research (EURO), Bonn, Germany}}}

Giallombardo G., Moccia L., Salani M., Vacca I. The Tactical Berth Allocation Problem with QC Assignment and Transshipment Costs May 29, 2009. ODYSSEUS 2009 - 4th International Workshop on Freight Transportation and Logistics, Cesme, Izmir, Turkey.


@Misc{CT_ODY_09,
  author = {Giovanni Giallombardo and Luigi Moccia and Matteo Salani and Ilaria Vacca},
  title = {The Tactical Berth Allocation Problem with QC Assignment and Transshipment Costs},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/CT_ODY_09.pdf}},
  year = {2009},
  note = {Presented at ODYSSEUS 2009 - 4th International Workshop on Freight Transportation and Logistics, Cesme, Izmir, Turkey}}}

Vandaele A., Bierlaire M., Salani M., Vacca I. Yard traffic and congestion in container terminals May 01, 2009. 6th International Conference on Computational Management Science, , Geneva.


@Misc{CT_CMS_09,
  author = {Arnaud Vandaele and Michel Bierlaire and Matteo Salani and Ilaria Vacca},
  title = {Yard traffic and congestion in container terminals},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/CT_CMS_09.pdf}},
  year = {2009},
  note = {Presented at 6th International Conference on Computational Management Science, , Geneva}}}

Giallombardo G., Moccia L., Salani M., Vacca I. Models and Heuristics for the Tactical Berth Allocation Problem with Quay-Crane Assignment and Transshipment Quadratic Costs January 21, 2009. 3ème cycle romand de recherche opérationnelle, Zinal, Switzerland.


@Misc{CT_ZINAL09,
  author = {Giovanni Giallombardo and Luigi Moccia and Matteo Salani and Ilaria Vacca},
  title = {Models and Heuristics for the Tactical Berth Allocation Problem with Quay-Crane Assignment and Transshipment Quadratic Costs},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/CT_ZINAL09.pdf}},
  year = {2009},
  note = {Presented at 3\ème cycle romand de recherche op\érationnelle, Zinal, Switzerland}}}

2008

Giallombardo G., Moccia L., Salani M., Vacca I. The Tactical Berth Allocation Problem (TBAP) with quay crane assignment and transshipment-related quadratic yard costs October 06, 2008. European Transport Conference (ETC), The Netherlands.


@Misc{CT_ETC_08,
  author = {Giovanni Giallombardo and Luigi Moccia and Matteo Salani and Ilaria Vacca},
  title = {The Tactical Berth Allocation Problem (TBAP) with quay crane assignment and transshipment-related quadratic yard costs},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/CT_ETC_08.pdf}},
  year = {2008},
  note = {Presented at European Transport Conference (ETC), The Netherlands}}}

Salani M., Vacca I. Two-stage column generation: a novel framework September 12, 2008. 6th Joint Operations Research Days, EPFL, Lausanne, Switzerland.


@Misc{CT_IBM_08,
  author = {Matteo Salani and Ilaria Vacca},
  title = {Two-stage column generation: a novel framework},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/CT_IBM_08.pdf}},
  year = {2008},
  note = {Presented at 6th Joint Operations Research Days, EPFL, Lausanne, Switzerland}}}

2007

Vacca I., Bierlaire M., Salani M. Optimization at Container Terminals: Status, Trends and Perspectives September 14, 2007. Swiss Transport Research Conference, Ascona, Switzerland.


@Misc{CT_STRC_07,
  author = {Ilaria Vacca and Michel Bierlaire and Matteo Salani},
  title = {Optimization at Container Terminals: Status, Trends and Perspectives},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/CT_STRC_07.pdf}},
  year = {2007},
  note = {Presented at Swiss Transport Research Conference, Ascona, Switzerland}}}

Vacca I., Bierlaire M., Salani M. Yard Optimization at Sea Container Terminals September 08, 2007. 38th Annual Conference of the Italian Operations Research Society (AIRO), , Genova, Italy.


@Misc{CT_AIRO_07,
  author = {Ilaria Vacca and Michel Bierlaire and Matteo Salani},
  title = {Yard Optimization at Sea Container Terminals},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/CT_AIRO_07.pdf}},
  year = {2007},
  note = {Presented at 38th Annual Conference of the Italian Operations Research Society (AIRO), , Genova, Italy}}}

Vacca I., Bierlaire M., Salani M. Optimization of Container Terminal Operations August 27, 2007. Fifth Joint Operations Research Days, ETHZ, Zurich, Switzerland.


@Misc{CT_IBM_07,
  author = {Ilaria Vacca and Michel Bierlaire and Matteo Salani},
  title = {Optimization of Container Terminal Operations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/CT_IBM_07.pdf}},
  year = {2007},
  note = {Presented at Fifth Joint Operations Research Days, ETHZ, Zurich, Switzerland}}}

Awards

2010

Ilaria Vacca. ENAC Research Day 2010 Doctoral poster award - 2nd prize, School of Architecture, Civil and Environmental Engineering, EPFL.
The Research Commission of the School of Architecture, Civil and Environmental Engineering has organized a poster competition for doctoral students in the context of the 2010 Research Day on Living with Risks : How to Build New Forms of Expertise. More than 70 posters have been prepared and evaluated. Ilaria Vacca, who is doing her PhD in our laboratory, received the second prize of this competition for her poster on the optimization of container terminal operations..
Ilaria Vacca, Matteo Salani. Ranked 16th in the TOP 25 hottest articles of Transportation Research Part B for January-March 2010, Transportation Research Part B: Methodological.
Giallombardo, G., Moccia, L., Salani, M., and Vacca, I. (2010). Modeling and Solving the Tactical Berth Allocation Problem, Transportation Research Part B: Methodological 44(2):232-245. doi:10.1016/j.trb.2009.07.003.

2007

Ilaria Vacca. Raeli graduation award, Tor Vergata University, Roma,Italy.

Reviewing

Research projects

2009

Models and methods for large scale optimization problems and applications in container terminals

We develop new strategies to tackle large scale problems and their optimization. We focus in particular applications arising in the optimization of container terminal operations.
- Dec 01, 2009 - Nov 30, 2012
- Sponsor: Swiss National Science Foundation
- Principal investigator: Michel Bierlaire
- Project managers: Ilaria Vacca, Matteo Salani

2007

Optimization of container terminal operations

Design and development of models and algorithms for the optimization of operations in seaport container terminals.
- Feb 01, 2007 - Nov 30, 2009
- Sponsor: Transport and Mobility Laboratory, EPFL
- Principal investigator: Michel Bierlaire
- Project managers: Ilaria Vacca, Matteo Salani

EPFL courses

Spring 2011

Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Gunnar Fl�tter�d
- Teaching assistant: Ilaria Vacca
- Webpage: http://moodle.epfl.ch/course/view.php?id=6791

Spring 2010

Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Gunnar Fl�tter�d
- Teaching assistant: Ilaria Vacca
- Webpage: http://moodle.epfl.ch/course/view.php?id=6791

Fall 2009

Introduction � l'optimisation diff�rentiable.
- Level: Bachelor
- Sections: Mechanical Engineering, Electrical and Electronics Engineering, Chemistry and Chemical Engineering, Computer science
- Lecturer: Micha�l Th�mans
- Teaching assistant: Ilaria Vacca
- Webpage:

Fall 2008

Introduction � l'optimisation diff�rentiable.
- Level: Bachelor
- Sections: Mechanical Engineering, Electrical and Electronics Engineering, Chemistry and Chemical Engineering, Computer science
- Lecturer: Micha�l Th�mans
- Teaching assistant: Ilaria Vacca
- Webpage:

Spring 2008

Recherche op�rationnelle.
- Level: Bachelor
- Sections: Civil Engineering, Environmental Sciences and Engineering
- Lecturer: Michel Bierlaire
- Teaching assistant: Ilaria Vacca

Fall 2007

Optimisation 1.
- Level: Bachelor
- Sections: Mechanical Engineering, Communication Systems, Electrical and Electronics Engineering
- Lecturer: Micha�l Th�mans
- Teaching assistants: Niklaus Eggenberg, Ilaria Vacca

Master theses

2009

Simulation and optimization in container terminals, Atoosa Kasirzadeh (None)
- Supervision: Michel Bierlaire, Matteo Salani, Ilaria Vacca
- External expert: -

2008

Measures of congestion in container terminals, Arnaud Vandaele (None)
- Supervision: Michel Bierlaire, Matteo Salani, Ilaria Vacca
- External expert:

Semester projects

2010

The Tactical Berth Allocation Problem: hierarchical vs integrated models in the context of container terminal operations, Luca Furrer (Mathematics)

Supervision: Ilaria Vacca
Container terminal operations have received increasing interest in the scientific literature over the last years and operations research techniques are more and more used to improve terminal's efficiency and productivity. In particular, the simultaneous optimization of decision problems that are usually solved hierarchically by terminal's planners represents nowadays a promising research trend. The Tactical Berth Allocation Problem (TBAP) deals with the integration of the berth allocation problem (BAP) and the quay crane assignment problem (QCAP). It aims to schedule incoming ships over a time horizon, assigning them a berthing position and a certain quay crane profile (i.e. number of quay cranes per working shift). These decisions are strictly correlated, since the number of quay cranes assigned to a ship affects its expected handling time, and thus has impact on the scheduling in the berth allocation plan. The problem has been modeled as a mixed integer program and housekeeping costs generated by the berth assignment are taken into account by a quadratic term in the objective function. The aim of this project is twofold: (i) to compare the integrated approach (modeled in TBAP) to the standard hierarchical approach (first solve BAP, then QCAP); (ii) to analyze the impact of different BAP objective functions on yard operations, by taking into account housekeeping costs.

Javier Cruz

Javier Cruz has been a member of the laboratory from Jan 01, 2007 to Oct 31, 2011

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Javier Cruz.

Journal articles

2013

Cruz J., Bierlaire M., Thiran J. (2013). Sample and Pixel Weighting Strategies for Robust Incremental Visual Tracking. IEEE Transactions on Circuits and Systems for Video Technology 23 (5):898-911


@Article{CruzBierThir13,
  author = {Javier Cruz and Michel Bierlaire and Jean-Philippe Thiran},
  title = {Sample and Pixel Weighting Strategies for Robust Incremental Visual Tracking},
  journal = {IEEE Transactions on  Circuits and Systems for Video Technology},
  year = {2013},
  volume = {23},
  number = {5},
  pages = {898-911},
  DOI = {10.1109/TCSVT.2013.2249374 },
  note = {Accepted on Dec 25, 2012}}}

2012

Cruz J., Bogdanova I., Paquier B., Bierlaire M., Thiran J. (2012). Scale Invariant Feature Transform on the Sphere: Theory and Applications. International Journal of Computer Vision 98 (2):217-241

A SIFT algorithm in spherical coordinates for omnidirectional images is proposed. This algorithm can generate two types of local descriptors, Local Spherical Descriptors and Local Planar Descriptors. With the first ones, point matching between two omnidirectional images can be performed, and with the second ones, the same matching process can be done but between omnidirectional and planar images. Furthermore, a planar to spherical mapping is introduced and an algorithm for its estimation is given. This mapping allows to extract objects from an omnidirectional image given their SIFT descriptors in a planar image. Several experiments, confirming the promising and accurate performance of the system, are conducted.
```
@Article{CruzBogdPaquBierThir09,
  author = {Javier Cruz and Iva Bogdanova and Beno{\^\i}t Paquier and Michel Bierlaire and Jean-Philippe Thiran},
  title = {Scale Invariant Feature Transform on the Sphere: Theory and Applications},
  journal = {International Journal of Computer Vision},
  year = {2012},
  volume = {98},
  number = {2},
  pages = {217-241},
  DOI = {10.1007/s11263-011-0505-4},
  note = {Accepted on Oct 21, 2011}}}
```

2011

Robin T., Bierlaire M., Cruz J. (2011). Dynamic facial expression recognition with a discrete choice model. Journal of Choice Modelling 4 (2):95-148

A generation of new models has been proposed to handle some complex human behaviors. These models account for the data ambiguity, and there- fore extend the application field of the discrete choice modeling. The facial expression recognition (FER) is highly relevant in this context. We develop a dynamic facial expression recognition (DFER) framework based on dis- crete choice models (DCM). The DFER consists in modeling the choice of a person who has to label a video sequence representing a facial expression. The originality is based on the the analysis of videos with discrete choice models as well as the explicit modeling of causal effects between the facial features and the recognition of the expression. Five models are proposed. The first assumes that only the last frame of the video triggers the choice of the expression. The second model has two components. The first captures the perception of the facial expression within each frame in the sequence, while the second determines which frame triggers the choice. The third model is an extension of the second model and assumes that the choice of the expression results from the average of perceptions within a group of frames. The fourth and fifth models integrate the panel effect inherent to the estimation data and are respectively extensing the first and second mod- els. The models are estimated using videos from the Facial Expressions and Emotions Database (FEED). Labeling data on the videos has been obtained using an internet survey available at http://transp-or2.epfl.ch/videosurvey/. The prediction capability of the models is studied in order to check their validity by cross-validation using the estimation data.
```
@Article{RobiBierCruz11,
  author = {Thomas Robin and Michel Bierlaire and Javier Cruz},
  title = {Dynamic facial expression recognition with a discrete choice model},
  journal = {Journal of Choice Modelling},
  year = {2011},
  volume = {4},
  number = {2},
  pages = {95-148},
  DOI = {10.1016/S1755-5345(13)70059-9},
  note = {Accepted on Jun 02, 2011}}}
```

2010

Sorci M., Antonini G., Cruz J., Robin T., Bierlaire M., Thiran J. (2010). Modelling human perception of static facial expressions. Image and Vision Computing 28 (5):790-806

A recent internet based survey of over 35'000 samples has shown that when different human observers are asked to assign labels to static human facial expressions, different individuals categorize differently the same image. This fact results in a lack of an unique ground-truth, an assumption held by the large majority of existing models for classification. This is especially true for highly ambiguous expressions, especially in the lack of a dynamic context. In this paper we propose to address this shortcoming by the use of Discrete Choice Models (DCM) to describe the choice a human observer is faced to when assigning labels to static facial expressions. Different models of increasing complexity are specified to capture the causal effect between features of an image and its associated expression, using several combinations of different measurements. The sets of measurements we used are largely inspired by FACS but also introduce some new ideas, specific to a static framework. These models are calibrated using maximum likelihood techniques and they are compared with each other using a likelihood ratio test, in order to test for significance in the improvement resulting from adding supplemental features. Through a cross-validation procedure we assess the validity of our approach against overfitting and we provide a comparison with an alternative model based on Neural Networks for benchmark purposes.
```
@Article{SorcAntoCruzRobiBierThir09,
  author = {Matteo Sorci and Gianluca Antonini and Javier Cruz and Thomas Robin and Michel Bierlaire and Jean-Philippe Thiran},
  title = {Modelling human perception of static facial expressions},
  journal = {Image and Vision Computing},
  year = {2010},
  volume = {28},
  number = {5},
  pages = {790-806},
  DOI = {10.1016/j.imavis.2009.10.003},
  note = {Accepted on Oct 07, 2009}}}
```

2009

Robin T., Antonini G., Bierlaire M., Cruz J. (2009). Specification, estimation and validation of a pedestrian walking behavior model. Transportation Research Part B: Methodological 43 (1):36-56

We propose and validate a model for pedestrian walking behavior, based on discrete choice modeling. Two main types of behavior are identified: unconstrained and constrained. By unconstrained, we refer to behavior patterns which are independent from other individuals. The constrained patterns are captured by a leader-follower model and by a collision avoidance model. The spatial correlation between the alternatives is captured by a cross nested logit model. The model is estimated by maximum likelihood estimation on a real data set of pedestrian trajectories, manually tracked from video sequences. The model is successfully validated using a bi-directional flow data set, collected in controlled experimental conditions at Delft university.
```
@Article{RobiAntoBierCruz08,
  author = {Thomas Robin and Gianluca Antonini and Michel Bierlaire and Javier Cruz},
  title = {Specification, estimation and validation of a pedestrian walking behavior model},
  journal = {Transportation Research Part B: Methodological},
  year = {2009},
  volume = {43},
  number = {1},
  pages = {36-56},
  DOI = {10.1016/j.trb.2008.06.010},
  note = {Accepted on Jun 11, 2008}}}
```

Book chapters

2010

Sorci M., Robin T., Cruz J., Bierlaire M., Thiran J., Antonini G. (2010) Capturing Human Perception of Facial Expressions by Discrete Choice Modelling. In S. Hess and A. Daly (ed) Choice Modelling: The State-of-the-Art and the State-of-Practice, Emerald Group Publishing Limited [ISBN 978-1-84950-772-1]


@InProceedings{SorcRobiCruzBierThirAnto10,
  author = {Matteo Sorci and Thomas Robin and Javier Cruz and Michel Bierlaire and Jean-Philippe Thiran and Gianluca Antonini},
  title = {Capturing Human Perception of Facial Expressions by Discrete Choice Modelling},
  year = {2010},
  booktile = {Choice Modelling: The State-of-the-Art and the State-of-Practice},
  editor = {S. Hess and A. Daly},
  publisher = {Emerald Group Publishing Limited},
  pages = {101-136}}}

Technical reports

2011

Cruz J., Bierlaire M., Thiran J. (2011). Sample and Pixel Weighting Strategies for Robust Incremental Visual Tracking. Report TRANSP-OR 111027


@TechReport{CruzBierThir11,
  author = {Javier Cruz and Michel Bierlaire and Jean-Philippe Thiran},
  title = {Sample and Pixel Weighting Strategies for Robust Incremental Visual Tracking},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2011},
  type = {Technical Report},
  number = {TRANSP-OR 111027},
  address = {Lausanne, Switzerland}}}

2010

Robin T., Bierlaire M., Cruz J. (2010). Dynamic facial expression recognition with a discrete choice model. Report TRANSP-OR 100423


@TechReport{RobiBierCruz_DynFacExpRec_10,
  author = {Thomas Robin and Michel Bierlaire and Javier Cruz},
  title = {Dynamic facial expression recognition with a discrete choice model},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2010},
  type = {Technical Report},
  number = {TRANSP-OR 100423},
  address = {Lausanne, Switzerland}}}

2009

Sorci M., Robin T., Cruz J., Bierlaire M., Thiran J. (2009). Modelling human perception of facial expressions. Report TRANSP-OR 090706


@TechReport{SorcRobiCruzBierThir09,
  author = {Matteo Sorci and Thomas Robin and Javier Cruz and Michel Bierlaire and Jean-Philippe Thiran},
  title = {Modelling human perception of facial expressions},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2009},
  type = {Technical Report},
  number = {TRANSP-OR 090706},
  address = {Lausanne, Switzerland}}}

Cruz J., Bogdanova I., Paquier B., Bierlaire M., Thiran J. (2009). Scale Invariant Feature Transform on the Sphere: Theory and Applications. Report TRANSP-OR 090426


@TechReport{CruzBogdPaquBierThir09,
  author = {Javier Cruz and Iva Bogdanova and Beno{\^\i}t Paquier and Michel Bierlaire and Jean-Philippe Thiran},
  title = {Scale Invariant Feature Transform on the Sphere: Theory and Applications},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2009},
  type = {Technical Report},
  number = {TRANSP-OR 090426},
  address = {Lausanne, Switzerland}}}

2008

Cruz J., Bierlaire M., Thiran J. (2008). Multiple-View Scenes: Reconstruction and Virtual Views. Report TRANSP-OR 080710


@TechReport{CruzBierThir08,
  author = {Javier Cruz and Michel Bierlaire and Jean-Philippe Thiran},
  title = {Multiple-View Scenes: Reconstruction and Virtual Views},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2008},
  type = {Technical Report},
  number = {TRANSP-OR 080710},
  address = {Lausanne, Switzerland}}}

2007

Robin T., Antonini G., Bierlaire M., Cruz J. (2007). Specification, estimation and validation of a pedestrian walking behavior model. Report TRANSP-OR 071116


@TechReport{RobiAntoBierCruz07,
  author = {Thomas Robin and Gianluca Antonini and Michel Bierlaire and Javier Cruz},
  title = {Specification, estimation and validation of a pedestrian walking behavior model},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2007},
  type = {Technical Report},
  number = {TRANSP-OR 071116},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2010

Robin T., Bierlaire M., Cruz J. (2010) Travellers well-being measuring and dynamic facial expression recognition. Proceedings of the World Conference on Transport Research July 11-15, Lisbonne, Portugal


@InProceedings{trobin_WCTR_10,
  author = {Thomas Robin and Michel Bierlaire and Javier Cruz},
  title = {Travellers well-being measuring and dynamic facial expression recognition},
  booktime = {Proceedings of the World Conference on Transport Research , July 11-15},
  year = {2010},
  address = {Lisbonne, Portugal}}}

2009

Robin T., Bierlaire M., Cruz J. (2009) Dynamic facial expression recognition using a behavioural model. Proceedings of the the 9th Swiss Transport Research Conference (STRC), September 9 - 11, 2009, Ascona, Switzerland


@InProceedings{Robin_STRC09,
  author = {Thomas Robin and Michel Bierlaire and Javier Cruz},
  title = {Dynamic facial expression recognition using a behavioural model},
  booktime = {Proceedings of the the 9th Swiss Transport Research Conference  (STRC), September 9 - 11, 2009},
  year = {2009},
  address = {Ascona, Switzerland}}}

2008

Robin T., Antonini G., Bierlaire M., Cruz J. (2008) Specification, estimation and validation of a pedestrian walking behaviour model. Proceedings of the European Transportation Research Conference (ETC), October 6-8, , Netherlands


@InProceedings{RobAntBieCru_ETC08,
  author = {Thomas Robin and Gianluca Antonini and Michel Bierlaire and Javier Cruz},
  title = {Specification, estimation and validation of a pedestrian walking behaviour model},
  booktime = {Proceedings of the European Transportation Research Conference (ETC), October 6-8},
  year = {2008},
  address = {, Netherlands}}}

Meynet J., Arsan T., Cruz J., Thiran J. (2008) Fast multi-view face tracking with pose estimation. Proceedings of the 16th European Signal Processing Conference (EUSIPCO2008), August 25-29, Lausanne, Switzerland


@InProceedings{MeynetArsanCruzThiran08,
  author = {Julien Meynet and Taner Arsan and Javier Cruz and Jean-Philippe Thiran},
  title = {Fast multi-view face tracking with pose estimation},
  booktime = {Proceedings of the 16th European Signal Processing Conference (EUSIPCO2008), August 25-29},
  year = {2008},
  address = {Lausanne, Switzerland}}}

Sorci M., Antonini G., Cerretani B., Cruz J., Robin T., Bierlaire M., Thiran J. (2008) Modelling human perception of static facial expressions. Proceedings of the 8th IEEE International Conference on Automatic Face and Gesture Recognition (FG2008), September 17-19, Amsterdam, The Netherlands


@InProceedings{SorciAntoCerCruzRobinBierThiran2008,
  author = {Matteo Sorci and Gianluca Antonini and Barbara Cerretani and Javier Cruz and Thomas Robin and Michel Bierlaire and Jean-Philippe Thiran},
  title = {Modelling human perception of static facial expressions},
  booktime = {Proceedings of the 8th IEEE International Conference on Automatic Face and Gesture Recognition (FG2008), September 17-19},
  year = {2008},
  address = {Amsterdam, The Netherlands}}}

Talks

2010

Cruz J. Combining Visual and Behavioural Models for Pedestrian Tracking October 25, 2010. Transp-OR Seminar Series, EPFL, Lausanne.


@Misc{CruzPEDTRACK10b,
  author = {Javier Cruz},
  title = {Combining Visual and Behavioural Models for Pedestrian Tracking},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/CruzPEDTRACK10b.pdf}},
  year = {2010},
  note = {Presented at Transp-OR Seminar Series, EPFL, Lausanne}}}

Cruz J. Behavioural Pedestrian Tracking (II) April 12, 2010. Transp-OR Seminar Series, EPFL, Lausanne.


@Misc{CruzPEDTRACK10a,
  author = {Javier Cruz},
  title = {Behavioural Pedestrian Tracking (II)},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/CruzPEDTRACK10a.pdf}},
  year = {2010},
  note = {Presented at Transp-OR Seminar Series, EPFL, Lausanne}}}

2009

Cruz J. Behavioural Pedestrian Tracking November 09, 2009. Transp-OR Seminar Series, EPFL, Lausanne.


@Misc{CruzPEDTRACK09,
  author = {Javier Cruz},
  title = {Behavioural Pedestrian Tracking},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/CruzPEDTRACK09.pdf}},
  year = {2009},
  note = {Presented at Transp-OR Seminar Series, EPFL, Lausanne}}}

2008

Cruz J., Meynet J., Arsan T., Thiran J. Fast multi-view face tracking with pose estimation August 26, 2008. 16th European Signal Processing Conference (EUSIPCO2008), European Association for Signal Processing (EURASIP), Lausanne, Switzerland.


@Misc{EUSIPCO08,
  author = {Javier Cruz and Julien Meynet and Taner Arsan and Jean-Philippe Thiran},
  title = {Fast multi-view face tracking with pose estimation},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/EUSIPCO08.pdf}},
  year = {2008},
  note = {Presented at 16th European Signal Processing Conference (EUSIPCO2008), European Association for Signal Processing (EURASIP), Lausanne, Switzerland}}}

2007

Cruz J., Robin T., Sorci M., Bierlaire M., Thiran J. Modelling Human Perception of Facial Expressions by Discrete Choice Models August 30, 2007. Third Workshop on Discrete Choice Models, Transport and Mobility Laboratory, EPFL, Lausanne, Switzerland.


@Misc{DCA07JAVI,
  author = {Javier Cruz and Thomas Robin and Matteo Sorci and Michel Bierlaire and Jean-Philippe Thiran},
  title = {Modelling Human Perception of Facial Expressions by Discrete Choice Models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/DCA07JAVI.pdf}},
  year = {2007},
  note = {Presented at Third Workshop on Discrete Choice Models, Transport and Mobility Laboratory, EPFL, Lausanne, Switzerland}}}

Awards

2009

Thomas Robin, Gianluca Antonini, Michel Bierlaire, Javier Cruz. Ranked 1st in the TOP 25 hottest articles of Transportation Research Part B for January-March 2009, Transportation Research Part B.
Robin, T., Antonini, G., Bierlaire, M., and Cruz, J. (2009). Specification, estimation and validation of a pedestrian walking behavior model, Transportation Research Part B: Methodological 43(1):36-56. doi:10.1016/j.trb.2008.06.010.

2008

Thomas Robin, Gianluca Antonini, Michel Bierlaire, Javier Cruz. Ranked 1st in the TOP 25 hottest articles of Transportation Research Part B for October-December 2008, Transportation Research Part B.
Robin, T., Antonini, G., Bierlaire, M., and Cruz, J. (2009). Specification, estimation and validation of a pedestrian walking behavior model, Transportation Research Part B: Methodological 43(1):36-56. doi:10.1016/j.trb.2008.06.010.

Reviewing

Research projects

2008

Invariant features in omnidirectional images

Design of algorithms to extract invariant features from images captured by omnidirectional cameras.
- May 20, 2008 - May 01, 2009
- Sponsor: Transport and Mobility Laboratory, EPFL
- Principal investigator: Michel Bierlaire
- Project manager: Javier Cruz

2007

Behavioural modelling of human experts for scene analysis

Modelling the global appraisal process of experts in the context of scene analysis.
- Oct 01, 2007 - Sep 30, 2010
- Sponsor: Swiss National Science Foundation
- Principal investigator: Michel Bierlaire
- Project managers: Javier Cruz, Thomas Robin

2002

Pedestrian simulation

We develop models of pedestrian movements based on discrete choice analysis.
- Oct 01, 2002 - Oct 01, 2004
- Sponsor: Transport and Mobility Laboratory, EPFL
- Principal investigator: Michel Bierlaire
- Project manager: Michel Bierlaire
- Collaborators: Gianluca Antonini, Thomas Robin, Javier Cruz

EPFL courses

Fall 2009

Mod�lisation des syst�mes �nergie et Transports.
- Level: Master
- Sections: Civil Engineering, Electrical and Electronics Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Javier Cruz, Ricardo Hurtubia
- Webpage: http://moodle.epfl.ch/course/view.php?id=1251

Fall 2008

Mod�lisation des syst�mes �nergie et Transports.
- Level: Master
- Sections: Civil Engineering, Electrical and Electronics Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Javier Cruz, Ricardo Hurtubia
- Webpage: http://moodle.epfl.ch/course/view.php?id=1251

Fall 2007

Mod�lisation des syst�mes �nergie et Transports.
- Level: Master
- Section: Civil Engineering
- Lecturer: Michel Bierlaire
- Teaching assistant: Javier Cruz

Semester projects

2010

Simulateur de mouvements de piétons, Viljami Laurmaa (Mathematics)

Supervision: Thomas Robin, Javier Cruz, Mamy Fetiarison
Les mod�les de mouvement de pi�tons permettent de simuler le comportement de foules. Ils sont utiles dans le domaine de la s�curit�, de l'�vacuation, mais �galement pour la plannification urbaine. En effet de nos jours pour des raisons environementales, de nombreux centres-ville sont interdits aux voitures et transform�s en zones pi�tonnes. Ces mod�les servent � simuler le comportement des pi�tons dans des contextes urbains pr�d�finis afin de choisir l'am�nagement qui sera le mieux adapt�. Ce projet concerne l'impl�mentation d'un mod�le de mouvements de pi�tons, mod�le d�velopp� � l'EPFL au sein du laboratoire Transp-or

2007

Study of Optical Flow techniques for motion estimation in video sequences, Epely-Chauvin Gaël (Civil Engineering)

Supervision: Javier Cruz
In image processing, when dealing with video sequences, it is usually very useful to have an estimation of the motion in order to obtain spatio-temporal information. To achieve this, the most common approach is to compute the optical flow, which is the velocity field of the apparent motion between frames. The aim of this project is to study the most relevant approaches to compute the optical flow and implement them using C, C++ or JAVA.

Thomas Robin

Thomas Robin has been a member of the laboratory from Oct 01, 2006 to Sep 30, 2011

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Thomas Robin.

Journal articles

2013

Robin T., Guidi L., Dufour A., Migon C. (2013). Statistical distributions of trace metal concentrations in the northwestern Mediterranean atmospheric aerosol. Environmental Monitoring and Assessment 185 (11):9177-9189


@Article{RobiGuidDufoMigo13,
  author = {Thomas Robin and Lionel Guidi and Aur\'elie Dufour and Christophe Migon},
  title = {Statistical distributions of trace metal concentrations in the northwestern Mediterranean atmospheric aerosol},
  journal = {Environmental Monitoring and Assessment},
  year = {2013},
  volume = {185},
  number = {11},
  pages = {9177-9189},
  DOI = {10.1007/s10661-013-3245-9},
  note = {Accepted on Apr 26, 2013}}}

2012

Robin T., Bierlaire M. (2012). Modeling the behavior of investors. Journal of Choice Modelling 5 (2)

We introduce a hybrid discrete choice framework to model the decisions of investors in stock markets. More specifically, we model the decision to buy or sell stocks using a binary logit model with latent classes, characterizing the perception of risk. The model considers the dynamic nature of the underlying decision process and is estimated from the data of a Swiss bank containing 25989 transactional observations from January 2005 to September 2010 for 6 different portfolios. The predictive performance of the model is tested: a cross-validation analysis is performed and the forecasting accuracy of the model is studied in details. Parameters of the model are interpretable and quantify interesting behavioral mechanisms related to investors’ decisions. The predictive capabilities of the model in a real context makes it practicable.
```
@Article{RobiBier12,
  author = {Thomas Robin and Michel Bierlaire},
  title = {Modeling the behavior of investors},
  journal = {Journal of Choice Modelling},
  year = {2012},
  volume = {5},
  number = {2},
  DOI = {10.1016/S1755-5345(13)70054-X},
  note = {Accepted on Jun 22, 2012}}}
```

2011

Robin T., Bierlaire M., Cruz J. (2011). Dynamic facial expression recognition with a discrete choice model. Journal of Choice Modelling 4 (2):95-148

A generation of new models has been proposed to handle some complex human behaviors. These models account for the data ambiguity, and there- fore extend the application field of the discrete choice modeling. The facial expression recognition (FER) is highly relevant in this context. We develop a dynamic facial expression recognition (DFER) framework based on dis- crete choice models (DCM). The DFER consists in modeling the choice of a person who has to label a video sequence representing a facial expression. The originality is based on the the analysis of videos with discrete choice models as well as the explicit modeling of causal effects between the facial features and the recognition of the expression. Five models are proposed. The first assumes that only the last frame of the video triggers the choice of the expression. The second model has two components. The first captures the perception of the facial expression within each frame in the sequence, while the second determines which frame triggers the choice. The third model is an extension of the second model and assumes that the choice of the expression results from the average of perceptions within a group of frames. The fourth and fifth models integrate the panel effect inherent to the estimation data and are respectively extensing the first and second mod- els. The models are estimated using videos from the Facial Expressions and Emotions Database (FEED). Labeling data on the videos has been obtained using an internet survey available at http://transp-or2.epfl.ch/videosurvey/. The prediction capability of the models is studied in order to check their validity by cross-validation using the estimation data.
```
@Article{RobiBierCruz11,
  author = {Thomas Robin and Michel Bierlaire and Javier Cruz},
  title = {Dynamic facial expression recognition with a discrete choice model},
  journal = {Journal of Choice Modelling},
  year = {2011},
  volume = {4},
  number = {2},
  pages = {95-148},
  DOI = {10.1016/S1755-5345(13)70059-9},
  note = {Accepted on Jun 02, 2011}}}
```

2010

Sorci M., Antonini G., Cruz J., Robin T., Bierlaire M., Thiran J. (2010). Modelling human perception of static facial expressions. Image and Vision Computing 28 (5):790-806

A recent internet based survey of over 35'000 samples has shown that when different human observers are asked to assign labels to static human facial expressions, different individuals categorize differently the same image. This fact results in a lack of an unique ground-truth, an assumption held by the large majority of existing models for classification. This is especially true for highly ambiguous expressions, especially in the lack of a dynamic context. In this paper we propose to address this shortcoming by the use of Discrete Choice Models (DCM) to describe the choice a human observer is faced to when assigning labels to static facial expressions. Different models of increasing complexity are specified to capture the causal effect between features of an image and its associated expression, using several combinations of different measurements. The sets of measurements we used are largely inspired by FACS but also introduce some new ideas, specific to a static framework. These models are calibrated using maximum likelihood techniques and they are compared with each other using a likelihood ratio test, in order to test for significance in the improvement resulting from adding supplemental features. Through a cross-validation procedure we assess the validity of our approach against overfitting and we provide a comparison with an alternative model based on Neural Networks for benchmark purposes.
```
@Article{SorcAntoCruzRobiBierThir09,
  author = {Matteo Sorci and Gianluca Antonini and Javier Cruz and Thomas Robin and Michel Bierlaire and Jean-Philippe Thiran},
  title = {Modelling human perception of static facial expressions},
  journal = {Image and Vision Computing},
  year = {2010},
  volume = {28},
  number = {5},
  pages = {790-806},
  DOI = {10.1016/j.imavis.2009.10.003},
  note = {Accepted on Oct 07, 2009}}}
```

2009

Robin T., Antonini G., Bierlaire M., Cruz J. (2009). Specification, estimation and validation of a pedestrian walking behavior model. Transportation Research Part B: Methodological 43 (1):36-56

We propose and validate a model for pedestrian walking behavior, based on discrete choice modeling. Two main types of behavior are identified: unconstrained and constrained. By unconstrained, we refer to behavior patterns which are independent from other individuals. The constrained patterns are captured by a leader-follower model and by a collision avoidance model. The spatial correlation between the alternatives is captured by a cross nested logit model. The model is estimated by maximum likelihood estimation on a real data set of pedestrian trajectories, manually tracked from video sequences. The model is successfully validated using a bi-directional flow data set, collected in controlled experimental conditions at Delft university.
```
@Article{RobiAntoBierCruz08,
  author = {Thomas Robin and Gianluca Antonini and Michel Bierlaire and Javier Cruz},
  title = {Specification, estimation and validation of a pedestrian walking behavior model},
  journal = {Transportation Research Part B: Methodological},
  year = {2009},
  volume = {43},
  number = {1},
  pages = {36-56},
  DOI = {10.1016/j.trb.2008.06.010},
  note = {Accepted on Jun 11, 2008}}}
```

2008

Migon C., Robin T., Dufour A., Gentili B. (2008). Decrease of lead concentrations in the Western Mediterranean atmosphere during the last 20 years. Atmospheric Environment 42 :815-821

Concentrations of lead (Pb) in the atmospheric aerosol were monitored in 1986–87, 1992–93, 1995, 1997–98 and 2003–2005 at a North-Western Mediterranean coastal sampling station. After the implementation of antipollution policies on automotive Pb in the second half of the 1980s, Pb concentrations were markedly lowered and then the decrease slowed down, at the latest in 2003, resulting in average concentrations varying between 6.6 and 5.8 ngm3 in 2004 and 2005, respectively. This represents a decrease by a factor of 82%, approximately, between 1986–87 and 2005. Reproducible seasonal patterns are observed, with highest Pb loads occurring at the end of winter and at the end of summer/beginning of autumn. The slowing down of aerosol Pb concentration decrease in the troposphere is expected to be rapidly observed in the Western Mediterranean water column.
```
@Article{MigoRobiDufoGent08,
  author = {Christophe Migon and Thomas Robin and Aur\'elie Dufour and Bernard Gentili},
  title = {Decrease of lead concentrations in the Western Mediterranean atmosphere during the last 20 years},
  journal = {Atmospheric Environment},
  year = {2008},
  volume = {42},
  pages = {815-821},
  DOI = {10.1016/j.atmosenv.2007.10.078},
  note = {Accepted on Oct 31, 2007}}}
```

Book chapters

2010


@InProceedings{SorcRobiCruzBierThirAnto10,
  author = {Matteo Sorci and Thomas Robin and Javier Cruz and Michel Bierlaire and Jean-Philippe Thiran and Gianluca Antonini},
  title = {Capturing Human Perception of Facial Expressions by Discrete Choice Modelling},
  year = {2010},
  booktile = {Choice Modelling: The State-of-the-Art and the State-of-Practice},
  editor = {S. Hess and A. Daly},
  publisher = {Emerald Group Publishing Limited},
  pages = {101-136}}}

2009

Bierlaire M., Robin T. (2009) Pedestrians Choices. In H. Timmermans (ed) Pedestrian Behavior. Models, Data Collection and Applications, Emerald Group Publishing Limited [ISBN 978-1-84855-750-5]


@InProceedings{BierRobi09,
  author = {Michel Bierlaire and Thomas Robin},
  title = {Pedestrians Choices},
  year = {2009},
  booktile = {Pedestrian Behavior. Models, Data Collection and Applications},
  editor = {H. Timmermans},
  publisher = {Emerald Group Publishing Limited},
  pages = {1-26}}}

Technical reports

2011

Robin T., Bierlaire M. (2011). Modeling the behavior of investors. Report


@TechReport{RobiBier11,
  author = {Thomas Robin and Michel Bierlaire},
  title = {Modeling the behavior of investors},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2011},
  type = {Technical Report},
  address = {Lausanne, Switzerland}}}

2010

Robin T., Bierlaire M., Cruz J. (2010). Dynamic facial expression recognition with a discrete choice model. Report TRANSP-OR 100423


@TechReport{RobiBierCruz_DynFacExpRec_10,
  author = {Thomas Robin and Michel Bierlaire and Javier Cruz},
  title = {Dynamic facial expression recognition with a discrete choice model},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2010},
  type = {Technical Report},
  number = {TRANSP-OR 100423},
  address = {Lausanne, Switzerland}}}

2009

Sorci M., Robin T., Cruz J., Bierlaire M., Thiran J. (2009). Modelling human perception of facial expressions. Report TRANSP-OR 090706


@TechReport{SorcRobiCruzBierThir09,
  author = {Matteo Sorci and Thomas Robin and Javier Cruz and Michel Bierlaire and Jean-Philippe Thiran},
  title = {Modelling human perception of facial expressions},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2009},
  type = {Technical Report},
  number = {TRANSP-OR 090706},
  address = {Lausanne, Switzerland}}}

Bierlaire M., Robin T. (2009). Pedestrians choices. Report TRANSP-OR 090303


@TechReport{BierRobi09,
  author = {Michel Bierlaire and Thomas Robin},
  title = {Pedestrians choices},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2009},
  type = {Technical Report},
  number = {TRANSP-OR 090303},
  address = {Lausanne, Switzerland}}}

2007

Robin T., Antonini G., Bierlaire M., Cruz J. (2007). Specification, estimation and validation of a pedestrian walking behavior model. Report TRANSP-OR 071116


@TechReport{RobiAntoBierCruz07,
  author = {Thomas Robin and Gianluca Antonini and Michel Bierlaire and Javier Cruz},
  title = {Specification, estimation and validation of a pedestrian walking behavior model},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2007},
  type = {Technical Report},
  number = {TRANSP-OR 071116},
  address = {Lausanne, Switzerland}}}

Antonini G., Bierlaire M., Schneider S., Robin T. (2007). Specification, estimation and validation of a pedestrian walking behavior model. Report TRANSP-OR 070727


@TechReport{AntoBierSchnRobi07,
  author = {Gianluca Antonini and Michel Bierlaire and Sabina Schneider and Thomas Robin},
  title = {Specification, estimation and validation of a pedestrian walking behavior model},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2007},
  type = {Technical Report},
  number = {TRANSP-OR 070727},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2010


@InProceedings{trobin_WCTR_10,
  author = {Thomas Robin and Michel Bierlaire and Javier Cruz},
  title = {Travellers well-being measuring and dynamic facial expression recognition},
  booktime = {Proceedings of the World Conference on Transport Research , July 11-15},
  year = {2010},
  address = {Lisbonne, Portugal}}}

2009


@InProceedings{Robin_STRC09,
  author = {Thomas Robin and Michel Bierlaire and Javier Cruz},
  title = {Dynamic facial expression recognition using a behavioural model},
  booktime = {Proceedings of the the 9th Swiss Transport Research Conference  (STRC), September 9 - 11, 2009},
  year = {2009},
  address = {Ascona, Switzerland}}}

2008


@InProceedings{RobAntBieCru_ETC08,
  author = {Thomas Robin and Gianluca Antonini and Michel Bierlaire and Javier Cruz},
  title = {Specification, estimation and validation of a pedestrian walking behaviour model},
  booktime = {Proceedings of the European Transportation Research Conference (ETC), October 6-8},
  year = {2008},
  address = {, Netherlands}}}


@InProceedings{SorciAntoCerCruzRobinBierThiran2008,
  author = {Matteo Sorci and Gianluca Antonini and Barbara Cerretani and Javier Cruz and Thomas Robin and Michel Bierlaire and Jean-Philippe Thiran},
  title = {Modelling human perception of static facial expressions},
  booktime = {Proceedings of the 8th IEEE International Conference on Automatic Face and Gesture Recognition (FG2008), September 17-19},
  year = {2008},
  address = {Amsterdam, The Netherlands}}}

Talks

2011

Robin T. Ing�nierie de l'�vacuation des personnes: la simulation July 08, 2011. Formation continue, Haute école d'ingénierie et de gestion du canton de Vaud (HEIG-VD), Yverdon-les-Bains.


@Misc{Rob_ECA_11,
  author = {Thomas Robin},
  title = {Ing\'enierie de l'\'evacuation des personnes: la simulation},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Rob_ECA_11.pdf}},
  year = {2011},
  note = {Presented at Formation continue, Haute \école d'ing\énierie et de gestion du canton de Vaud (HEIG-VD), Yverdon-les-Bains}}}

Robin T., Bierlaire M. Modeling the investors'behavior July 04, 2011. International Choice Modelling Conference, Leeds, UK.


@Misc{RobBier_LEEDS_11,
  author = {Thomas Robin and Michel Bierlaire},
  title = {Modeling the investors'behavior},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/RobBier_LEEDS_11.pdf}},
  year = {2011},
  note = {Presented at International Choice Modelling Conference, Leeds, UK}}}

2010

Robin T., Bierlaire M., Cruz J. Travellers well-being measuring and dynamic facial expression recognition July 12, 2010. World Conference on Transport Research, Lisbon, Portugal.


@Misc{Rob_WCTR_10,
  author = {Thomas Robin and Michel Bierlaire and Javier Cruz},
  title = {Travellers well-being measuring and dynamic facial expression recognition},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Rob_WCTR_10.pdf}},
  year = {2010},
  note = {Presented at World Conference on Transport Research, Lisbon, Portugal}}}

Robin T. Mod�lisation des flux de pi�tons June 15, 2010. Module "Transports publics intégrés", bloc "Accès au train et mobilité combinée", Chemins de fer fédéraux (CFF), EPFL.


@Misc{ROB-cff10,
  author = {Thomas Robin},
  title = {Mod\'elisation des flux de pi\'etons},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/ROB-cff10.pdf}},
  year = {2010},
  note = {Presented at Module \"Transports publics int\égr\és\", bloc \"Acc\ès au train et mobilit\é combin\ée\", Chemins de fer f\éd\éraux (CFF), EPFL}}}

Robin T. Modeling of the Trading Behavior May 10, 2010. Transp-OR Seminar Series, EPFL, Lausanne.


@Misc{RobFinance0510,
  author = {Thomas Robin},
  title = {Modeling of the Trading Behavior},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/RobFinance0510.pdf}},
  year = {2010},
  note = {Presented at Transp-OR Seminar Series, EPFL, Lausanne}}}

2009

Robin T. Dynamic Facial Expression Recognition using a Discrete Choice Model November 09, 2009. Transp-OR Seminar Series, EPFL, Lausanne.


@Misc{RobFacExp1109,
  author = {Thomas Robin},
  title = {Dynamic Facial Expression Recognition using a Discrete Choice Model},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/RobFacExp1109.pdf}},
  year = {2009},
  note = {Presented at Transp-OR Seminar Series, EPFL, Lausanne}}}

Robin T., Bierlaire M., Cruz J. Dynamic facial expression recognition using a behavioural model September 10, 2009. STRC, 9th Swiss Transportation Research Conference, Ascona, Switzerland.


@Misc{Rob_STRC_09,
  author = {Thomas Robin and Michel Bierlaire and Javier Cruz},
  title = {Dynamic facial expression recognition using a behavioural model},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Rob_STRC_09.pdf}},
  year = {2009},
  note = {Presented at STRC, 9th Swiss Transportation Research Conference, Ascona, Switzerland}}}

Robin T., Bierlaire M., Cruz J. A new dynamic facial expression recognition framework August 28, 2009. Workshop on discrete choice models, Ecole Polytechnique Federale de Lausanne , Lausanne, Switzerland.


@Misc{RobWDCA09,
  author = {Thomas Robin and Michel Bierlaire and Javier Cruz},
  title = {A  new dynamic facial expression recognition framework},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/RobWDCA09.pdf}},
  year = {2009},
  note = {Presented at Workshop on discrete choice models, Ecole Polytechnique Federale de Lausanne , Lausanne, Switzerland}}}

Robin T., Bierlaire M., Cruz J. Behavioural modeling of facial expression recognition January 20, 2009. 3ème cycle romand de recherche opérationnelle, EPFL, Zinal (Switzerland).


@Misc{Rob2209,
  author = {Thomas Robin and Michel Bierlaire and Javier Cruz},
  title = {Behavioural modeling of facial expression recognition},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Rob2209.pdf}},
  year = {2009},
  note = {Presented at 3\ème cycle romand de recherche op\érationnelle, EPFL, Zinal (Switzerland)}}}

2008

Robin T., Antonini G., Bierlaire M., Cruz J. Specification, estimation and validation of a pedestrian walking behaviour model October 16, 2008. Swiss Transportation Research Conference 2008, Ascona, Switzerland.


@Misc{RobSTRC08,
  author = {Thomas Robin and Gianluca Antonini and Michel Bierlaire and Javier Cruz},
  title = {Specification, estimation and validation of a pedestrian walking behaviour model},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/RobSTRC08.pdf}},
  year = {2008},
  note = {Presented at Swiss Transportation Research Conference 2008, Ascona, Switzerland}}}

Robin T., Antonini G., Bierlaire M., Cruz J. Specification, estimation and validation of a pedestrian walking behaviour model October 08, 2008. European Transportation Conference 2008, Netherlands.


@Misc{RobETC08,
  author = {Thomas Robin and Gianluca Antonini and Michel Bierlaire and Javier Cruz},
  title = {Specification, estimation and validation of a pedestrian walking behaviour model},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/RobETC08.pdf}},
  year = {2008},
  note = {Presented at European Transportation Conference 2008, Netherlands}}}

Robin T., Bierlaire M., Cruz J. Behavioural modeling of dynamic facial expression recognition August 29, 2008. Workshop on discrete choice models, EPFL, EPFL.


@Misc{Robin_0808,
  author = {Thomas Robin and Michel Bierlaire and Javier Cruz},
  title = {Behavioural modeling of dynamic facial expression recognition},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Robin_0808.pdf}},
  year = {2008},
  note = {Presented at Workshop on discrete choice models, EPFL, EPFL}}}

Robin T., Bierlaire M., Antonini G., Cruz J. Specification, estimation and validation of a pedestrian walking behaviour model March 14, 2008. Seminar of the faculty of Business and Economics, Universté catholique de Louvain, Leuven, Belgium.


@Misc{PedLeuv08,
  author = {Thomas Robin and Michel Bierlaire and Gianluca Antonini and Javier Cruz},
  title = {Specification, estimation and validation of a pedestrian walking behaviour model},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/PedLeuv08.pdf}},
  year = {2008},
  note = {Presented at Seminar of the faculty of Business and Economics, Universt\é catholique de Louvain, Leuven, Belgium}}}

Robin T., Bierlaire M., Antonini G., Cruz J. Specification, estimation and validation of a pedestrian walking behaviour model January 23, 2008. Seminars of the third cycle of swiss operational research, Third cycle of swiss operational research, Zinal, Switzerland.


@Misc{PedZinal08,
  author = {Thomas Robin and Michel Bierlaire and Gianluca Antonini and Javier Cruz},
  title = {Specification, estimation and validation of a pedestrian walking behaviour model},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/PedZinal08.pdf}},
  year = {2008},
  note = {Presented at Seminars of the third cycle of swiss operational research,  Third cycle of swiss operational research, Zinal, Switzerland}}}

2007

Robin T., Bierlaire M., Antonini G., Cruz J. Specification, estimation and validation of a pedestrian walking behaviour model December 13, 2007. Workshop on calibration of microscopic pedestrian movement simulations, Arsenal research center, Vienna, Austria.


@Misc{PedVien07,
  author = {Thomas Robin and Michel Bierlaire and Gianluca Antonini and Javier Cruz},
  title = {Specification, estimation and validation of a pedestrian walking behaviour model},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/PedVien07.pdf}},
  year = {2007},
  note = {Presented at Workshop on calibration of microscopic pedestrian movement simulations, Arsenal research center, Vienna, Austria}}}

Robin T., Cruz J., Sorci M., Bierlaire M. Modelling Human Perception of Facial Expressions by Discrete Choice Models August 28, 2007. Fifth Joint Operations Research Days, ETHZ, Zurich.


@Misc{FER-IBM-07,
  author = {Thomas Robin and Javier Cruz and Matteo Sorci and Michel Bierlaire},
  title = {Modelling Human Perception of Facial Expressions by Discrete Choice Models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/FER-IBM-07.pdf}},
  year = {2007},
  note = {Presented at Fifth Joint Operations Research Days, ETHZ, Zurich}}}

Awards

2009

Thomas Robin, Gianluca Antonini, Michel Bierlaire, Javier Cruz. Ranked 1st in the TOP 25 hottest articles of Transportation Research Part B for January-March 2009, Transportation Research Part B.
Robin, T., Antonini, G., Bierlaire, M., and Cruz, J. (2009). Specification, estimation and validation of a pedestrian walking behavior model, Transportation Research Part B: Methodological 43(1):36-56. doi:10.1016/j.trb.2008.06.010.

2008

Thomas Robin, Gianluca Antonini, Michel Bierlaire, Javier Cruz. Ranked 1st in the TOP 25 hottest articles of Transportation Research Part B for October-December 2008, Transportation Research Part B.
Robin, T., Antonini, G., Bierlaire, M., and Cruz, J. (2009). Specification, estimation and validation of a pedestrian walking behavior model, Transportation Research Part B: Methodological 43(1):36-56. doi:10.1016/j.trb.2008.06.010.

Reviewing

Transportmetrica (1)

Research projects

2006

Mod�le de planification des transports de la r�gion lausannoise: Offre de construction de demandes 2020

Previsions of OD matrices and modal split for 2020 in the Lausanne region
- Aug 01, 2006 - Apr 01, 2007
- Sponsor: Service de la mobilité du canton de Vaud
- Principal investigator: Michel Bierlaire
- Project manager: Jean-Pierre Leyvraz
- Collaborator: Thomas Robin
Path to purchase

To understand consumer behavior in his or her path to purchase.
- Jul 01, 2006 - Jun 30, 2008
- Sponsor: Nestlé
- Principal investigator: Michel Bierlaire
- Project manager: Kamran Houshang Pour
- Collaborators: Thomas Robin, Gianluca Antonini
Location of distribution centres

Optimization of the location of distribution centres for Postlogistics, Switzerland
- Mar 15, 2006 - Aug 21, 2006
- Sponsor: Transport and Mobility Laboratory, EPFL
- Principal investigator: Michel Bierlaire
- Project manager: Carolina Osorio Pizano
- Collaborator: Thomas Robin

2002

Pedestrian simulation

We develop models of pedestrian movements based on discrete choice analysis.
- Oct 01, 2002 - Oct 01, 2004
- Sponsor: Transport and Mobility Laboratory, EPFL
- Principal investigator: Michel Bierlaire
- Project manager: Michel Bierlaire
- Collaborators: Gianluca Antonini, Thomas Robin, Javier Cruz

EPFL courses

Fall 2010

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Master in Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Aur�lie Glerum, Thomas Robin
- Webpage: http://transp-or.epfl.ch/dca2010/

Fall 2009

Mathematical Modeling of Behavior.
- Level: Master
- Section: Mathematics
- Lecturer: Michel Bierlaire
- Teaching assistants: Thomas Robin, Jingmin Chen
- Webpage: NULL

Fall 2008

Mathematical modeling of behavior.
- Level: Master
- Sections: Mathematics, Management of Technology and Financial Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Thomas Robin, Jeffrey Newman
- Webpage: NULL

Fall 2007

Mod�lisation math�matique du comportement.
- Level: Master
- Section: Mathematics
- Lecturer: Michel Bierlaire
- Teaching assistants: Carolina Osorio Pizano, Thomas Robin

Various lectures

2011

Estimation of Binary Choice Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 20, 2011 - Mar 24, 2011
- Lecturer: Michel Bierlaire
- Assistants: Thomas Robin, Aur�lie Glerum
Discrete Panel Data.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 20, 2011 - Mar 24, 2011
- Lecturer: Michel Bierlaire
- Assistants: Thomas Robin, Aur�lie Glerum
Extreme Value Models; Sampling.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 20, 2011 - Mar 24, 2011
- Lecturer: Michel Bierlaire
- Assistants: Thomas Robin, Aur�lie Glerum
Mixture Models and simulation-based Estimation.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 20, 2011 - Mar 24, 2011
- Lecturer: Michel Bierlaire
- Assistants: Thomas Robin, Aur�lie Glerum
Specification and Estimation of Logit Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 20, 2011 - Mar 24, 2011
- Lecturer: Michel Bierlaire
- Assistants: Thomas Robin, Aur�lie Glerum

2010

Estimation of binary choice models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 07, 2010 - Feb 11, 2010
- Lecturer: Michel Bierlaire
- Assistants: Carolina Osorio Pizano, Thomas Robin
Multivariate Extreme Value Models - Sampling and Estimatio.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 07, 2010 - Feb 11, 2010
- Lecturer: Michel Bierlaire
- Assistants: Carolina Osorio Pizano, Thomas Robin
Mixture Models; Simulation-based Estimation.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 07, 2010 - Feb 11, 2010
- Lecturer: Michel Bierlaire
- Assistants: Carolina Osorio Pizano, Thomas Robin
Specification and Estimation of Logit Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 07, 2010 - Feb 11, 2010
- Lecturer: Michel Bierlaire
- Assistants: Carolina Osorio Pizano, Thomas Robin
Estimation of Discrete Choice Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 07, 2010 - Feb 11, 2010
- Lecturer: Michel Bierlaire
- Assistants: Carolina Osorio Pizano, Thomas Robin

2009

Estimation of binary choice models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 24, 2009 - Mar 28, 2009
- Lecturer: Michel Bierlaire
- Assistants: Carolina Osorio Pizano, Thomas Robin
Specification and Estimation of Logit Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 24, 2009 - Mar 28, 2009
- Lecturer: Michel Bierlaire
- Assistants: Carolina Osorio Pizano, Thomas Robin
Estimation of Discrete Choice Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 24, 2009 - Mar 28, 2009
- Lecturer: Michel Bierlaire
- Assistants: Carolina Osorio Pizano, Thomas Robin
Mixture Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 24, 2009 - Mar 28, 2009
- Lecturer: Michel Bierlaire
- Assistants: Carolina Osorio Pizano, Thomas Robin

2008

Estimation of binary choice models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 25, 2008 - Mar 29, 2008
- Lecturer: Michel Bierlaire
- Assistants: Carolina Osorio Pizano, Thomas Robin
Multivariate Extreme Value Models - Sampling Strategies.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 25, 2008 - Mar 29, 2008
- Lecturer: Michel Bierlaire
- Assistants: Carolina Osorio Pizano, Thomas Robin
Specification and Estimation of Logit Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 25, 2008 - Mar 29, 2008
- Lecturer: Michel Bierlaire
- Assistants: Carolina Osorio Pizano, Thomas Robin

2007

Modeling and simulation of behavior: discrete choice models.
- Modeling and Simulation in Logistics, International Institute for the Management of Logistics, Lausanne, Switzerland
- May 03, 2007
- Lecturer: Michel Bierlaire
- Assistant: Thomas Robin

Master theses

2010-2011

The modeling of the investors behavior, Sabine Luisier (Mathematics)
- Supervision: Michel Bierlaire, Thomas Robin, Michaël Thémans
- External expert: Dr. Frank Crittin, LODH

2009

An Empirical Investigation of the Determinants of Attention to Attributes in Choice Experiments, Antonin Danalet (Mathematics)
- Supervision: Michel Bierlaire, Michaël Thémans, Thomas Robin
- External expert: Prof. Ricardo Scarpa
Experiences des moyens de transport et choix modal, Medhi-Seyed Tavakoli (Civil Engineering)
- Supervision: Michel Bierlaire, Thomas Robin
- External expert: Dr Christophe Jemelin

2006-2007

Validation d'un modèle de mouvement de piétons, Sabina Schneider (Mathematics)
- Supervision: Michel Bierlaire, Thomas Robin
- External expert: Gianluca Antonin, IBM Research Zürich

Semester projects

2010-2011

Estimation and simulation of bid-auction and choice location models, Thibaut Dubernet (Civil Engineering)

Supervision: Ricardo Hurtubia, Thomas Robin

2010

Destination choice models for a free bicycle system, Zehra Onen (Mathematics)

Supervision: Ricardo Hurtubia, Thomas Robin
Several cities around the world are implementing �free bicycle systems� that consist of a network of stations were bicycles are available for users to �pay and ride�. Usually these systems allow users to return the bicycle in a different station from the one where it was taken. The project consists in estimating destination choice models that should allow to predict the station where a bicycle will be returned, given the origin, the time of the day, the length (in time) of the trip and the characteristics of the surroundings of each station. The project considers 3 main stages: Data analysis, model estimation (with the software BIOGEME) and model validation.

Simulateur de mouvements de piétons, Viljami Laurmaa (Mathematics)

Supervision: Thomas Robin, Javier Cruz, Mamy Fetiarison
Les mod�les de mouvement de pi�tons permettent de simuler le comportement de foules. Ils sont utiles dans le domaine de la s�curit�, de l'�vacuation, mais �galement pour la plannification urbaine. En effet de nos jours pour des raisons environementales, de nombreux centres-ville sont interdits aux voitures et transform�s en zones pi�tonnes. Ces mod�les servent � simuler le comportement des pi�tons dans des contextes urbains pr�d�finis afin de choisir l'am�nagement qui sera le mieux adapt�. Ce projet concerne l'impl�mentation d'un mod�le de mouvements de pi�tons, mod�le d�velopp� � l'EPFL au sein du laboratoire Transp-or

2009-2010

Finance and Discrete Choice Models, Inès Azaiez (Mathematics)

Supervision: Thomas Robin
Default risk evaluation for credit cards and mortgages, credit ratings determination, probabilities estimation of acquisitions and mergers of firms (used to guide investment), are very complex financial tasks. They require a very good expertise of the field. This is due to the high number of information that decision makers need to account for. In addition, information could be very heterogeneous in term of source and impact on the decision itself. Models can help financial decision maker in their tasks. For instance, classification methods are mainly used to model financial decisions. Discrete Choice Models (DCM) have been successively applied to many fields in the past 40 years, such as transportation or marketing. Compared to machine learning methods they have the advantages to explicitly model causal relations between dependant variables and exogenous attributes, and to avoid data over-fitting. DCMs start to be used in the financial field. The aim of this project is to investigate DCM use in a financial context, then find relevant problem to which it can be applied and finally illustrate those concepts on a real case study.

Mode choice modelling with qualitative aspects inclusions, Zehra Onen (Mathematics)

Supervision: Thomas Robin
Discrete Choice Models (DCM) are widely used in transportation to explain mode choice. Objective attributes have been commonly used to describe the different alternatives, such as travel time or travel cost. Kaufmann et al. (2001) have conducted some transportation mode choice surveys. In addition to the classical data collection, they have included questions about experiences and perceptions of transportation modes. The obtained database is large and contains lots of respondents sociological aspects, difficult to apprehend in a classical DCM, due to their qualitative nature. In order to go through such issues, J.L.Walker (2001) has proposed a new modelling framework based on DCM and latent concepts. She used schemes to describe links between variables. The aim of the project is to identify complex causal links between sociological aspects and transportation mode choice, based on the data cited above, and then derive a new modelling framework.

2008-2009

Expérience des moyens de transport et choix modal, Seyed Tavakoli (Civil Engineering)

Supervision: Michel Bierlaire, Thomas Robin
Lorsque l�on choisit d�utiliser un moyen de transport plut�t qu�un autre, ind�pendamment des temps de d�placements et des co�ts compar�s des alternatives en pr�sence, l�usager a des pr�f�rences. Celles-ci sont li�es � son exp�rience des moyens de transport et � la perception qu�il en a. Les mod�lisations du choix modal ne rendent qu�imparfaitement compte de cette dimension, intrins�quement qualitative. Pour la traiter, le LaSUR a d�velopp� depuis une dizaine d�ann�es un dispositif de citation d�adjectifs, appliqu� � de gros �chantillons de population lors d�enqu�tes de mobilit�. Nous proposons comme sujet de Master de mod�liser sur la base des donn�es disponibles, l�impact de l�exp�rience sensorielle des moyens de transports sur le choix modal.

2009

Analysis of consumer behaviour in terms of product preference/choice., Aurélie Glerum (Mathematics)

Supervision: Thomas Robin, Michaël Thémans
This project will be conducted in collaboration with the Nestl� Research Center. Quantitative studies are frequently used in the food industry in order to determine whether a product is superior to its competitor(s). Many types of studies exist, but this project focuses on a specific type of study involving only two products and in which consumers are asked to evaluate both products with regard to different criteria (such as flavour, appearance, texture, etc.) and to choose the product they prefer. Socio-demographic characteristics as well as information on consumption habits are also collected during the test. The aim of this project is to explore a database containing about 100 studies that have been conducted over the past years on a same product category in different countries. Such studies are usually analyzed by the means of descriptive statistics in order to answer the two following questions: -Which product do consumers prefer? -Why do consumers prefer this product? In this project, we propose to analyze the studies by making use of discrete choice modelling. This technique allows understanding and modelling the behaviour of consumers in a quantitative way when they are exposed to such choice situations, i.e. the choice between two products. Discrete choice models should allow identifying and quantifying the effect of both product attributes and consumer characteristics on the preference.

2008-2009

Est-il possible de réduire le nombre de panélistes dans une étude DTS (Dominance Temporelle des Sensations) sans altérer la qualité des résultats?, Glerum Aurélie (Mathematics)

Supervision: Thomas Robin, Michaël Thémans
La m�thode de la Dominance Temporelle des Sensations (DTS) permet de suivre l��volution des perceptions sensorielles en bouche au cours de la mastication d�un produit alimentaire. Elle consiste simplement � demander au pan�liste de s�lectionner la caract�ristique dominante du produit au cours de la mastication. Par exemple, si le produit est une barre de c�r�ales, le pan�liste doit indiquer au cours de la mastication d�une bouch�e si le produit est plut�t croquant, friable, collant ou p�teux. Cette caract�ristique dominante peut changer au cours du temps. Sur l�ensemble du panel, cette m�thode permet de dessiner les courbes d��volution de chaque descripteur sensoriel au cours du temps. Cette m�thode est relativement r�cente et les premi�res �tudes ont �t� r�alis�es avec un nombre de pan�listes tr�s important (environ 50 �valuations de chaque produit). L�objectif de ce projet est de tester si cette m�thode donne des r�sultats aussi satisfaisants avec un nombre de pan�listes r�duit. Le travail consistera donc � : se familiariser avec la m�thode DTS et la construction des courbes, d�velopper un programme permettant de construire ces courbes pour un sous-ensemble de pan�listes, g�n�rer les r�sultats pour plusieurs tailles de panel en utilisant les donn�es de plusieurs �tudes DTS existantes au centre de recherche Nestl�, proposer une m�thode pour comparer les r�sultats des panels de taille r�duite avec le panel complet, appliquer cette m�thode et analyser les r�sultats, r�diger un rapport pr�sentant la d�marche et mettant en avant les principales conclusions.

Is it possible to reduce the number of panelists in a TDS (Temporal Dominance of Sensations) study without altering the quality of the results?, Aurélie Glérum (Mathematics)

Supervision: Thomas Robin, Michel Bierlaire, Michaël Thémans

2008

Déconvolution de signaux géochimiques, Gfeller Nicolas (Mathematics)

Supervision: Thomas Robin
Le but g�n�ral de la m�thode est de conna�tre, � partir du relev� de la concentration d'un �l�ment chimique dans l'air, la part naturelle, et la part anthropique(celle d�e � l'homme, par exemple la pollution). Concr�tement � partir de donn�es existantes, nous voulons impl�menter et r�soudre une maximisation de vraisemblance, afin de d�terminer les deux composantes du signal.

2007-2008

Modèle de choix discret, Weber Caroline (Mathematics)

Supervision: Thomas Robin
Les mod�les de choix de discret sont tr�s pertinents concernant le choix de mode de transport. Une enqu�te sur les trajets a �t� men�e d�ao�t � d�cembre 2003 par l�ETHZ, � Frauenfeld et ses abords dans le canton de Thurgovie, en Suisse. Celle-ci concerne 230 personnes, suivies pendant 6 semaines et provenant de 99 m�nages. L��tude de la base de donn�es r�sultante permettra de mieux conna�tre les habitudes des voyageurs, ainsi que de d�velopper un mod�le de choix de mode de transport. Le but de ce projet est de s�initier � l�analyse des mod�les de choix discret leurs applica- tions sur des donn�es r�elles, en l�occurence les donn�es d�crites ci-dessus.

2006-2007

Etude des modèles de mouvements de piétons, Li Xiangchun (Mathematics)

Supervision: Thomas Robin
Etude des mod�les de mouvements de pi�tons, revue de la litt�rature, recensement des mod�les existants dans divers domaines tels que l'architecture, planification urbaine, gestion de grands �v�nements, �vacuation...etc. Le but est d'identifier ces divers mod�les, d�terminer leurs hypoth�ses, contextes d'utilisation, et faire une �tude comparative.

Niklaus Eggenberg

Niklaus Eggenberg has been a member of the laboratory from Apr 01, 2006 to Jun 10, 2010

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Niklaus Eggenberg.

Journal articles

2011

Eggenberg N., Salani M., Bierlaire M. (2011). Uncertainty Feature Optimization: an implicit paradigm for problems with noisy data. Networks 57 (3):270-284

Optimization problems with noisy data solved using stochastic programming or robust optimization approaches require the explicit characterization of an uncertainty set U that models the nature of the noise. Such approaches depend on the modeling of the uncertainty set and suffer from an erroneous estimation of the noise.
```
@Article{EggeSalaBier10,
  author = {Niklaus Eggenberg and Matteo Salani and Michel Bierlaire},
  title = {Uncertainty Feature Optimization: an implicit paradigm for problems with noisy data},
  journal = {Networks},
  year = {2011},
  volume = {57},
  number = {3},
  pages = {270-284},
  DOI = {10.1002/net.20428},
  note = {Accepted on Jun 16, 2010}}}
```

2010

Eggenberg N., Salani M., Bierlaire M. (2010). Constraint-specific recovery networks for solving airline recovery problems. Computers & Operations Research 37 (6):1014-1026

In this paper, we consider the recovery of an airline schedule after an unforeseen event called disruption, making the planned schedule infeasible. We present a modeling framework that allows the consideration of operational constraints within a Column Generation (CG) scheme. We introduce the general concept of recovery network, generated for each individual unit of the problem, and show how unit-specific constraints are modeled using resources. We fully illustrate the concept by solving the Aircraft Recovery Problem (ARP) with maintenance planning, we give some insights into applying the model to the Passenger Recovery Problem (PRP) and we present computational results on real data. (C) 2009 Elsevier Ltd. All rights reserved.
```
@Article{EggeSalaBier09,
  author = {Niklaus Eggenberg and Matteo Salani and Michel Bierlaire},
  title = {Constraint-specific recovery networks for solving airline recovery problems},
  journal = {Computers \& Operations Research},
  year = {2010},
  volume = {37},
  number = {6},
  pages = {1014-1026},
  DOI = {10.1016/j.cor.2009.08.006 },
  note = {Accepted on Aug 31, 2009}}}
```

Technical reports

2010

Eggenberg N., Salani M., Bierlaire M. (2010). Robust and Recoverable Maintenance Routing Schedules. Report TRANSP-OR 100115


@TechReport{NEMSMB_2010,
  author = {Niklaus Eggenberg and Matteo Salani and Michel Bierlaire},
  title = {Robust and Recoverable Maintenance Routing Schedules},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2010},
  type = {Technical Report},
  number = {TRANSP-OR 100115},
  address = {Lausanne, Switzerland}}}

2009

Chiraphadhanakul V., Eggenberg N. (2009). How to evaluate the robustness of airlines schedules. Report TRANSP-OR 091006


@TechReport{ChirEgg2009,
  author = {{Virot } Chiraphadhanakul and Niklaus Eggenberg},
  title = {How to evaluate the robustness of airlines schedules},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2009},
  type = {Technical Report},
  number = {TRANSP-OR 091006},
  address = {Lausanne, Switzerland}}}

Eggenberg N., Salani M. (2009). Uncertainty Feature Optimization for the Airline Scheduling Problem. Report TRANSP-OR 090105


@TechReport{EggeSala09,
  author = {Niklaus Eggenberg and Matteo Salani},
  title = {Uncertainty Feature Optimization for the Airline Scheduling Problem},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2009},
  type = {Technical Report},
  number = {TRANSP-OR 090105},
  address = {Lausanne, Switzerland}}}

Eggenberg N., Salani M., Bierlaire M. (2009). Constraint-Specific Recovery Networks for Solving Airline Recovery Problems. Report TRANSP-OR 081001


@TechReport{EggeSalaBier08_ARP,
  author = {Niklaus Eggenberg and Matteo Salani and Michel Bierlaire},
  title = {Constraint-Specific Recovery Networks for Solving Airline Recovery Problems},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2009},
  type = {Technical Report},
  number = {TRANSP-OR 081001},
  address = {Lausanne, Switzerland}}}

Eggenberg N., Salani M., Bierlaire M. (2009). UFO: Uncertainty Feature Optimization, an Implicit Paradigm for Problems with Noisy Data. Report TRANSP-OR 080829


@TechReport{EggeSalaBier08_UFO,
  author = {Niklaus Eggenberg and Matteo Salani and Michel Bierlaire},
  title = {UFO: Uncertainty Feature Optimization, an Implicit Paradigm for Problems with Noisy Data},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2009},
  type = {Technical Report},
  number = {TRANSP-OR 080829},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2009

Eggenberg N., Marla L. (2009) Congestion in a competitive world: a study of the impact of competition on airline operations. Proceedings of the Swiss Transportation Research Conference (STRC), September 9-11, Monte Verit�, Ascona, Switzerland


@InProceedings{EggMarla2009,
  author = {Niklaus Eggenberg and Lavanya Marla},
  title = {Congestion in a competitive world: a study of the impact of competition on airline operations},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), September 9-11},
  year = {2009},
  address = {Monte Verit\`a, Ascona, Switzerland}}}

2008


@InProceedings{EggSalBier_STRC08,
  author = {Niklaus Eggenberg and Matteo Salani and Michel Bierlaire},
  title = {Optimization of Uncertainty Features for Transportation Problems},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), October 15-17},
  year = {2008},
  address = {Monte Verit\`a, Ascona, Switzerland}}}

2007


@InProceedings{NEg_STRC_2007,
  author = {Niklaus Eggenberg and Matteo Salani and Michel Bierlaire},
  title = {Robust Optimization with Recovery: Application to Shortest Paths and Airline Scheduling},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), September 12-14},
  year = {2007},
  address = {Monte Verit\`a, Switzerland}}}


@InProceedings{BierEggeSala07,
  author = {Michel Bierlaire and Niklaus Eggenberg and Matteo Salani},
  title = {Column generation methods for disrupted airline schedules},
  booktime = {Proceedings of the Proceedings of the Sixth Triennial Symposium on Transportation Analysis (TRISTAN), June 10-15},
  year = {2007},
  address = {Phuket, Thailand}}}

Talks

2010

Eggenberg N., Salani M., Bierlaire M. Robust Airline Schedules June 24, 2010. Schedule and Strategic Planning Study Group meeting, AGIFORS, Lausanne, Switzerland.


@Misc{Egg_AGIFORS_2010,
  author = {Niklaus Eggenberg and Matteo Salani and Michel Bierlaire},
  title = {Robust Airline Schedules},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Egg_AGIFORS_2010.pdf}},
  year = {2010},
  note = {Presented at Schedule and Strategic Planning Study Group meeting, AGIFORS, Lausanne, Switzerland}}}

Eggenberg N., Salani M., Bierlaire M. How robust are robust schedules in reality? May 10, 2010. Seminar, IBM Research Center, Zurich (Switzerland).


@Misc{EGG_IBM_2010,
  author = {Niklaus Eggenberg and Matteo Salani and Michel Bierlaire},
  title = {How robust are robust schedules in reality?},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/EGG_IBM_2010.pdf}},
  year = {2010},
  note = {Presented at Seminar, IBM Research Center, Zurich (Switzerland)}}}

2009

Eggenberg N., Marla L., Barnhart C. A Study on the Impact of Competition on Airport Congestion October 12, 2009. INFORMS, San Diego.


@Misc{EGGINFORMS09B,
  author = {Niklaus Eggenberg and Lavanya Marla and Cynthia Barnhart},
  title = {A Study on the Impact of Competition on Airport Congestion},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/EGGINFORMS09B.pdf}},
  year = {2009},
  note = {Presented at INFORMS, San Diego}}}

Barnhart C., Chiraphadhanakul V., Eggenberg N. Explore the past to improve the Future: How can airlines benefit from historical data? October 11, 2009. INFORMS, San Diego.


@Misc{EGGINFORMS09A,
  author = {Cynthia Barnhart and {Virot } Chiraphadhanakul and Niklaus Eggenberg},
  title = {Explore the past to improve the Future: How can airlines benefit from historical data?},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/EGGINFORMS09A.pdf}},
  year = {2009},
  note = {Presented at INFORMS, San Diego}}}

Eggenberg N., Marla L. Congestion in a competitive world: A study of the impact of competition on airline operations September 10, 2009. STRC, EPFL TRANSP-OR, Monte Verità.


@Misc{EGGSTRC2009,
  author = {Niklaus Eggenberg and Lavanya Marla},
  title = {Congestion in a competitive world: A study of the impact of competition on airline operations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/EGGSTRC2009.pdf}},
  year = {2009},
  note = {Presented at STRC, EPFL TRANSP-OR, Monte Verit\à}}}

Eggenberg N., Salani M. Uncertainty Feature Optimization for the Airline Scheduling Problem September 03, 2009. IBM OR Days, SVOR, Lugano.


@Misc{EGGIBM09,
  author = {Niklaus Eggenberg and Matteo Salani},
  title = {Uncertainty Feature Optimization for the Airline Scheduling Problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/EGGIBM09.pdf}},
  year = {2009},
  note = {Presented at IBM OR Days, SVOR, Lugano}}}

Eggenberg N., Salani M. Uncertainty Feature Optimization for the Airline Scheduling Problem February 04, 2009. NSF Seminars, Massachusetts Institute of Technology, Boston, MA.


@Misc{EGG_MIT,
  author = {Niklaus Eggenberg and Matteo Salani},
  title = {Uncertainty Feature Optimization for the Airline Scheduling Problem},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/EGG_MIT.pdf}},
  year = {2009},
  note = {Presented at NSF Seminars, Massachusetts Institute of Technology, Boston, MA}}}

2008

Eggenberg N., Salani M., Bierlaire M. Optimization of Uncertainty Features for Transportation Problems October 17, 2008. Swiss Transportation Research Conference 2008, Monte Verità, Switzerland.


@Misc{EggSTRC08,
  author = {Niklaus Eggenberg and Matteo Salani and Michel Bierlaire},
  title = {Optimization of Uncertainty Features for Transportation Problems },
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/EggSTRC08.pdf}},
  year = {2008},
  note = {Presented at Swiss Transportation Research Conference 2008, Monte Verit\à, Switzerland}}}

Eggenberg N., Salani M., Bierlaire M. UFO: Uncertainty Feature Optimization, an Implicit Paradigm for Problems with Noisy Data May 14, 2008. CTW 2008, EPFL TRANSP-OR, Gargnano, Italy.


@Misc{NE_CTW08,
  author = {Niklaus Eggenberg and Matteo Salani and Michel Bierlaire},
  title = {UFO: Uncertainty Feature Optimization, an Implicit Paradigm for Problems with Noisy Data},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/NE_CTW08.pdf}},
  year = {2008},
  note = {Presented at CTW 2008, EPFL TRANSP-OR, Gargnano, Italy}}}

2007

Eggenberg N., Salani M., Bierlaire M. Robust Optimization with Recovery: Application to Shortest Paths and Airline Scheduling September 13, 2007. STRC 2007, EPFL TRANSP-OR, Monte Verità.


@Misc{NEgSTRC07,
  author = {Niklaus Eggenberg and Matteo Salani and Michel Bierlaire},
  title = {Robust Optimization with Recovery: Application to Shortest Paths and Airline Scheduling},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/NEgSTRC07.pdf}},
  year = {2007},
  note = {Presented at STRC 2007, EPFL TRANSP-OR, Monte Verit\à}}}

Eggenberg N., Salani M., Bierlaire M. Column Generation Methods for Disrupted Airline Schedules August 28, 2007. Fifth Joint Operations Research Days, ETHZ, Zürich.


@Misc{ARP_IBM_07,
  author = {Niklaus Eggenberg and Matteo Salani and Michel Bierlaire},
  title = {Column Generation Methods for Disrupted Airline Schedules},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/ARP_IBM_07.pdf}},
  year = {2007},
  note = {Presented at Fifth Joint Operations Research Days, ETHZ, Z\ürich}}}

Eggenberg N., Bierlaire M., Salani M. Airline Disruptions: Aircraft Recovery with Maintenance Constraints June 21, 2007. OR Seminar June 2007, EPFL, MA 31.


@Misc{ARP_21_06,
  author = {Niklaus Eggenberg and Michel Bierlaire and Matteo Salani},
  title = {Airline Disruptions: Aircraft Recovery with Maintenance Constraints},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/ARP_21_06.pdf}},
  year = {2007},
  note = {Presented at OR Seminar June 2007, EPFL, MA 31}}}

Eggenberg N., Bierlaire M., Salani M. Airline Disruptions: Aircraft Recovery with Maintenance Constraints June 12, 2007. TRISTAN VI, Phuket (Thailand).


@Misc{ARP_TRIS07,
  author = {Niklaus Eggenberg and Michel Bierlaire and Matteo Salani},
  title = {Airline Disruptions: Aircraft Recovery with Maintenance Constraints},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/ARP_TRIS07.pdf}},
  year = {2007},
  note = {Presented at TRISTAN VI, Phuket (Thailand)}}}

Eggenberg N., Bierlaire M., Salani M. A Recovery Algorithm for a Disrupted Airline Schedule March 07, 2007. Zinal Seminar 2007, EPFL, Zinal.


@Misc{ARP_Zinal,
  author = {Niklaus Eggenberg and Michel Bierlaire and Matteo Salani},
  title = {A Recovery Algorithm for a Disrupted Airline Schedule},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/ARP_Zinal.pdf}},
  year = {2007},
  note = {Presented at Zinal Seminar 2007, EPFL, Zinal}}}

Eggenberg N., Salani M., Bierlaire M. A Recovery Algorithm for a Disrupted Airline Schedule March 07, 2007. Zinal 2007, EPFL TRANSP-OR, Zinal.


@Misc{ZINAL07-NE,
  author = {Niklaus Eggenberg and Matteo Salani and Michel Bierlaire},
  title = {A Recovery Algorithm for a Disrupted Airline Schedule},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/ZINAL07-NE.pdf}},
  year = {2007},
  note = {Presented at Zinal 2007, EPFL TRANSP-OR, Zinal}}}

Eggenberg N., Bierlaire M., Salani M. A Recovery Algorithm for a Disrupted Airline Schedule January 16, 2007. OR Seminar January 2007, EPFL, MA 12.


@Misc{ARP_16_01,
  author = {Niklaus Eggenberg and Michel Bierlaire and Matteo Salani},
  title = {A Recovery Algorithm for a Disrupted Airline Schedule},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/ARP_16_01.pdf}},
  year = {2007},
  note = {Presented at OR Seminar January 2007, EPFL, MA 12}}}

Awards

2011

Niklaus Eggenberg. Best PhD Thesis Prize, Swiss Operations Research Society.
Every three years, the Swiss Operations Research Society proposes a prize to reward an outstanding theoretical or applied Ph.D. Thesis in the field of Operations Research..

2010

Niklaus Eggenberg. Honorable mention in Dissertation Award, Institute for Operations Research and the Management Science (INFORMS).
The Aviation Applications Section of INFORMS awards a prize for the best dissertation in any area related to aviation OR (air traffic management OR and airline OR). .

Research projects

2007

Column generation methods for the recovery of disrupted airline schedules

Robust planning and recovery from disruptions for airlines operations
- Oct 01, 2007 - Aug 31, 2010
- Sponsor: Swiss National Science Foundation
- Principal investigator: Michel Bierlaire
- Project manager: Niklaus Eggenberg

2006

Schedule disruption recovery for airlines

Development of a software product dedicated to airlines and providing solutions to recover from schedule disruptions with minimum cost.
- Jun 01, 2006 - May 31, 2008
- Sponsor: Commission pour la technologie et de l'innovation, Office Fédéral de la formation professionnelle et de la technologie.
- Principal investigator: Michel Bierlaire
- Project manager: Matteo Salani
- Collaborator: Niklaus Eggenberg

EPFL courses

Spring 2010

M�thodologies d'aide � la d�cision dans le domaine des transports.
- Level: Master
- Section: Civil Engineering
- Lecturers: Michel Bierlaire, Gunnar Fl�tter�d, Jean-Pierre Leyvraz, Niklaus Eggenberg

Fall 2007

Optimisation 1.
- Level: Bachelor
- Sections: Mechanical Engineering, Communication Systems, Electrical and Electronics Engineering
- Lecturer: Micha�l Th�mans
- Teaching assistants: Niklaus Eggenberg, Ilaria Vacca

Fall 2006

Optimisation 1.
- Level: Bachelor
- Sections: Mechanical Engineering, Electrical and Electronics Engineering, Communication Systems
- Lecturer: Michel Bierlaire
- Teaching assistant: Niklaus Eggenberg

Semester projects

2010

Optimisation d'horaires aériens, Sezin Afsar (Mathematics)

Supervision: Niklaus Eggenberg
Dans le cadre du transport a�rien, qui est sujet � de nombreux retards, il est essentiel de planifier les horaires de mani�re � mieux contr�ler ces retards. Le but de ce projet est d'�tudier, impl�menter et tester un mod�le d'optimisation qui maximise le temps de connexion des passagers, afin de r�duire le nombre de connections rat�es dans le cas o� des retards sont observ�s.

Algorithme de génération de vols de repositionnement pour améliorer la réparation d'un horaire perturbé, Sabine Luisier (Mathematics)

Supervision: Niklaus Eggenberg
Dans le domaine du trafic a�rien, un probl�me r�current est de r�parer un horaire perturb� suite � des �v�nements tels que de mauvaises conditions m�t�orologiques, une d�faillance technique d'un avion, etc. La probl�me de r�paration d'horaire est largement �tudi� dans la litt�rature. Malheureusement, si la majorit� des approches existantes consid�re la possibilit� d'int�grer des vols dits "de repositionnement" (des vols additionnels qui ne sont pas pr�vus initialement), aucune d'entre elles n'�tudie la g�n�ration des vols � consid�rer. Il s'agit donc d'�laborer un algorithme permettant de g�n�rer de bons candidats � am�liorer la solution de r�paration, sans pour autant consid�rer tous les vols de repositionnement possibles.

2008

Algorithmes On Line pour le CVRP avec Demandes Aléatoires, Boukriba Sami (Communication Systems)

Supervision: Niklaus Eggenberg
EN - The project copes with the capacitated vehicle routing problem (CVRP) in the case of unknown demand volumes of the customers. The aim is to abord the problem with an on line strategy. The student will first familiarize with CVRP and on line algorithms and then develop and test an on line strategy. FR -Le projet propose d'aborder le probl�me de troun�es de v�hicules avec contraintes de capacit� (CVRP) dans le cas o� les volumes des demandes des clients ne sont pas connus. Il s'agit ici d'aborder le probl�me avec une approche on line. L'�tudiant devra d'abord se familiariser avec le CVRP et les probl�mes on line puis d�velopper et tester une strat�gie.

Déterminer les vols de repositionnements pour un horaire aérien perturbé, Karker Amin, Tournier Sebastien (Communication Systems)

Supervision: Niklaus Eggenberg
Lors de l'ex�cution d'un horaire, il arrive souvent que ledit horaire devienne irr�alisable. Dans le cas du transport a�rien, pour r�agir � un tel �v�nement, il s'agit de retarder ou d'annuler certains vols, voir m�me faire des trajets "� vide" pour repositionner les avions. Dans ce projet, il s'agit d'�laborer une technique permettant d'identifier, �tant donn� l'horaire devenu irr�alisable et l'�tat des avions, quel(s) vol(s) de repositionnement sont � consid�rer pour minimiser autant les co�ts que les annulations de vols et les retards.

2006-2007

Analysis of a Recovery Network for an Airline Recovery Method, Messina Daniele (Mathematics)

Supervision: Niklaus Eggenberg
Airline schedules are often disrupted because of unforeseen events like lateness or bad weather. If the schedule becomes unfeasible, the scheduler has to recover from the actual state in order to get a new feasible schedule, either by canceling or postponing flights or even rerouting planes. The model often used is a time-space recovery network which encodes several possible recovery decisions for each plane in the fleet. It's main disadvantage is its size. The student will have to familiarize with airline scheduling and network modeling in order to analyze and simplify as much as possible the recovery network. The aim would be be able to end up with a reduction algorithm that throws network of smaller size by means of number of nodes and arcs amd eventually test the reduction algorithm on existing instances.

Carolina Osorio Pizano

Carolina Osorio Pizano has been a member of the laboratory from Dec 01, 2005 to Aug 31, 2010

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Carolina Osorio Pizano.

Journal articles

2013

Osorio C., Bierlaire M. (2013). A simulation-based optimization framework for urban transportation problems. Operations Research 61 (6):1333-1345


@Article{OsorBier13,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {A simulation-based optimization framework for urban transportation problems},
  journal = {Operations Research},
  year = {2013},
  volume = {61},
  number = {6},
  pages = {1333-1345},
  DOI = {10.1287/opre.2013.1226},
  note = {Accepted on Jun 29, 2013}}}

Bierlaire M., Osorio C. (2013). Selected papers from the seventh Triennial Symposium on Transportation Analysis (TRISTAN VII). Transportation Research Part C: Emerging Technologies 27 :59


@Article{BierOsor13,
  author = {Michel Bierlaire and Carolina Osorio},
  title = {Selected papers from the seventh Triennial Symposium on Transportation Analysis (TRISTAN VII)},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2013},
  volume = {27},
  pages = {59}}}

2012

Osorio C., Bierlaire M. (2012). A tractable analytical model for large-scale congested protein synthesis networks. European Journal of Operational Research 219 (3):588-597

This paper presents an analytical model, based on finite capacity queueing network theory, to evaluate congestion in protein synthesis networks. These networks are modeled as a set of single server bufferless queues in a tandem topology. This model proposes a detailed state space formulation, which provides a fine description of congestion and contributes to a better understanding of how the protein synthesis rate is deteriorated. The model approximates the marginal stationary distributions of each queue. It consists of a system of linear and quadratic equations that can be decoupled. The numerical performance of this method is evaluated for networks with up to 100,000 queues, considering scenarios with various levels of congestion. It is a computationally efficient and scalable method that is suitable to evaluate congestion for large-scale networks. Additionally, this paper generalizes the concept of blocking: blocking events can be triggered by an arbitrary set of queues. This generalization allows for a variety of blocking phenomena to be modeled. (C) 2011 Elsevier B.V. All rights reserved.
```
@Article{OsorBier11,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {A tractable analytical model for large-scale congested protein synthesis networks},
  journal = {European Journal of Operational Research},
  year = {2012},
  volume = {219},
  number = {3},
  pages = {588-597},
  DOI = {10.1016/j.ejor.2011.10.037},
  note = {Accepted on Jun 22, 2011}}}
```

2011


@Article{OsoFloeBier2011,
  author = {Carolina Osorio and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Dynamic network loading: a differentiable model that derives link state distributions},
  journal = {Transportation Research Part B: Methodological},
  year = {2011},
  volume = {45},
  number = {9},
  pages = {1410-1423},
  DOI = {10.1016/j.trb.2011.05.014},
  note = {Accepted on Mar 07, 2011}}}

2009

Osorio C., Bierlaire M. (2009). An analytic finite capacity queueing network model capturing the propagation of congestion and blocking. European Journal of Operational Research 196 (3):996-1007

Analytic queueing network models often assume infinite capacity queues due to the difficulty of grasping the between-queue correlation. This correlation can help to explain the propagation of congestion. We present an analytic queueing network model which preserves the finite capacity of the queues and uses structural parameters to grasp the between-queue correlation. Unlike pre-existing models it maintains the network topology and the queue capacities exogenous. Additionally, congestion is directly modeled via a novel formulation of the state space of the queues which explicitly captures the blocking phase. The model can therefore describe the sources and effects of congestion.
```
@Article{OsorBier08,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {An analytic finite capacity queueing network model capturing the propagation of congestion and blocking},
  journal = {European Journal of Operational Research},
  year = {2009},
  volume = {196},
  number = {3},
  pages = {996-1007},
  DOI = {10.1016/j.ejor.2008.04.035},
  note = {Accepted on Apr 23, 2008}}}
```

2006

Osorio C., Weibel C., Perez P., Bierlaire M., Garnerin P. (2006). Patient flow simulation as a tool for estimating policy impact. Swiss Medical Informatics 58 :33-36


@Article{OsorWeibPereBierGarn06,
  author = {Carolina Osorio and Christophe Weibel and Pao Perez and Michel Bierlaire and Philippe Garnerin},
  title = {Patient flow simulation as a tool for estimating policy impact},
  journal = {Swiss Medical Informatics},
  year = {2006},
  volume = {58},
  pages = {33-36}}}

Book chapters

2011


@InProceedings{OsoFloBieISTTTbook11,
  author = {Carolina Osorio and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Dynamic network loading: a stochastic differentiable model that derives link state distributions},
  year = {2011},
  booktile = {Procedia - Social and Behavioral Sciences. Papers selected for the 19th International Symposium on Transportation and Traffic Theory},
  editor = {M. Cassidy and  A. Skarbadonis},
  volume = {17},
  series = {Procedia - Social and Behavioral Sciences},
  publisher = {Elsevier},
  pages = {364-381}}}

Technical reports

2010

Osorio C., Bierlaire M. (2010). A simulation-based optimization framework for urban traffic control. Report TRANSP-OR 101203


@TechReport{osorBier10_so,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {A simulation-based optimization framework for urban traffic control},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2010},
  type = {Technical Report},
  number = {TRANSP-OR 101203},
  address = {Lausanne, Switzerland}}}

Osorio C., Flötteröd G., Bierlaire M. (2010). Dynamic network loading: a differentiable model that derives link state distributions. Report TRANSP-OR 100815


@TechReport{OsorFloeBier10,
  author = {Carolina Osorio and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {Dynamic network loading: a differentiable model that derives link state distributions},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2010},
  type = {Technical Report},
  number = {TRANSP-OR 100815},
  address = {Lausanne, Switzerland}}}

Osorio C., Bierlaire M. (2010). A tractable analytical model for large-scale congested protein synthesis networks. Report TRANSP-OR 100420


@TechReport{osorBier10_bioQg,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {A tractable analytical model for large-scale congested protein synthesis networks},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2010},
  type = {Technical Report},
  number = {TRANSP-OR 100420},
  address = {Lausanne, Switzerland}}}

2009

Osorio C., Bierlaire M. (2009). A surrogate model for traffic optimization of congested networks: an analytic queueing network approach. Report TRANSP-OR 090825


@TechReport{osorBier09,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {A surrogate model for traffic optimization of congested networks: an analytic queueing network approach},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2009},
  type = {Technical Report},
  number = {TRANSP-OR 090825},
  address = {Lausanne, Switzerland}}}

2008

Osorio C., Bierlaire M. (2008). Accounting for congestion and spillbacks in fixed-time traffic signal optimization: an analytical queueing model approach. Report TRANSP-OR 081026


@TechReport{OsorBier08,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {Accounting for congestion and spillbacks in fixed-time  traffic signal optimization: an analytical queueing model approach},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2008},
  type = {Technical Report},
  number = {TRANSP-OR 081026},
  address = {Lausanne, Switzerland}}}

2007

Osorio C., Bierlaire M. (2007). An analytic finite capacity queueing network model capturing blocking, congestion and spillbacks. Report TRANSP-OR 070604


@TechReport{OsorioBierlaire07,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {An analytic finite capacity queueing network model capturing blocking, congestion and spillbacks},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2007},
  type = {Technical Report},
  number = {TRANSP-OR 070604},
  address = {Lausanne, Switzerland}}}

2005

Osorio C. (2005). An auxiliary/latent variables approach to inferring missing haplotype/genotype data. Report


@TechReport{osorio05,
  author = {Carolina Osorio},
  title = {An auxiliary/latent variables approach to inferring missing haplotype/genotype data},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2005},
  type = {Technical Report},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2010


@InProceedings{DTA_osoFloBie2010,
  author = {Carolina Osorio and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {A differentiable dynamic network loading model that yields queue length distributions and accounts for spillback},
  booktime = {Proceedings of the International Symposium on Dynamic Traffic Assignment (DTA), July 29-31},
  year = {2010},
  address = {Takayama, Japan}}}

Osorio C., Bierlaire M. (2010) Urban traffic control for congested networks: a novel metamodel simulation optimization approach. Proceedings of the Pan-American Conference of Traffic and Transportation Engineering and Logistics (PANAM), July 15-18, Lisbon, Portugal


@InProceedings{osorioPANAM2010,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {Urban traffic control for congested networks: a novel metamodel simulation optimization approach},
  booktime = {Proceedings of the Pan-American Conference of Traffic and Transportation Engineering and Logistics (PANAM), July 15-18},
  year = {2010},
  address = {Lisbon, Portugal}}}

Osorio C., Bierlaire M. (2010) A simulation-based optimization approach to perform urban traffic control. Proceedings of the Triennial Symposium on Transportation Analysis (TRISTAN VII), June 20-25, Troms�, Norway


@InProceedings{TristanOsorio2010,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {A simulation-based optimization approach to perform urban traffic control},
  booktime = {Proceedings of the Triennial Symposium on Transportation Analysis (TRISTAN VII), June 20-25},
  year = {2010},
  address = {Troms{\o}, Norway}}}

Osorio C., Flötteröd G., Bierlaire M. (2010) A differentiable dynamic network loading model that yields queue length distributions and accounts for spillback. Proceedings of the Triennial Symposium on Transportation Analysis (TRISTAN VII), June 20-25, Troms�, Norway


@InProceedings{TristanOsoFloBie2010,
  author = {Carolina Osorio and Gunnar Fl\"otter\"od and Michel Bierlaire},
  title = {A differentiable dynamic network loading model that yields queue length distributions and accounts for spillback},
  booktime = {Proceedings of the Triennial Symposium on Transportation Analysis (TRISTAN VII), June 20-25},
  year = {2010},
  address = {Troms{\o}, Norway}}}

Osorio C., Bierlaire M. (2010) A simulation-based optimization framework for urban traffic congestion management. Proceedings of the World Conference on Transport Research (WCTR), July 11-15, Lisbon, Portugal


@InProceedings{osorioWCTR2010,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {A simulation-based optimization framework for urban traffic congestion management},
  booktime = {Proceedings of the World Conference on Transport Research (WCTR), July 11-15},
  year = {2010},
  address = {Lisbon, Portugal}}}

2009

Osorio C., Bierlaire M. (2009) A metamodel approach for simulation optimization of congested urban road networks. Proceedings of the 6th Computational Management Science Conference (CMS), May 1-3, Geneva, Switzerland


@InProceedings{osoCMS,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {A metamodel approach for simulation optimization of congested urban road networks},
  booktime = {Proceedings of the 6th Computational Management Science Conference (CMS), May 1-3},
  year = {2009},
  address = {Geneva, Switzerland}}}

Osorio C., Bierlaire M. (2009) A multi-model algorithm for the optimization of congested networks. Proceedings of the European Transport Conference (ETC), 5-7 October 2009, Noordwijkerhout, Netherlands


@InProceedings{osorioETC09,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {A multi-model algorithm for the optimization of congested networks},
  booktime = {Proceedings of the European Transport Conference (ETC), 5-7 October 2009},
  year = {2009},
  address = {Noordwijkerhout, Netherlands}}}

Osorio C., Bierlaire M. (2009) A simulation optimization framework for the management of congested urban road networks. Proceedings of the 9th Swiss Transport Research Conference (STRC), September 9-11, Monte Verita, Ascona, Switzerland


@InProceedings{osoSTRC09,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {A simulation optimization framework for the management of congested urban road networks},
  booktime = {Proceedings of the 9th Swiss Transport Research Conference (STRC), September 9-11},
  year = {2009},
  address = {Monte Verita, Ascona, Switzerland}}}

2008

Osorio C., Bierlaire M. (2008) A queueing network approach to the traffic signal optimization of the Lausanne city center. Proceedings of the Latin-Ibero-American Conference on Operations Research (CLAIO), September 9-12, Cartagena, Colombia


@InProceedings{osorioCLAIO08,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {A queueing network approach to the traffic signal optimization of the Lausanne city center},
  booktime = {Proceedings of the Latin-Ibero-American Conference on Operations Research (CLAIO), September 9-12},
  year = {2008},
  address = {Cartagena, Colombia}}}

Osorio C., Bierlaire M. (2008) Network performance optimization using a queueing network model. Proceedings of the European Transport Conference (ETC), October 6-8, Noordwijkerhout, Netherlands


@InProceedings{osoETC08,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {Network performance optimization using a queueing network model},
  booktime = {Proceedings of the European Transport Conference (ETC), October 6-8},
  year = {2008},
  address = {Noordwijkerhout, Netherlands}}}

Osorio C., Bierlaire M. (2008) Signal control optimization with a queueing network model capturing congestion. Proceedings of the Pan-American Conference on Traffic and Transportation Engineering (PANAM), September 14-17, Cartagena, Colombia


@InProceedings{osorioPANAM08,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {Signal control optimization with a queueing network model capturing congestion},
  booktime = {Proceedings of the Pan-American Conference on Traffic and Transportation Engineering (PANAM), September 14-17},
  year = {2008},
  address = {Cartagena, Colombia}}}

Osorio C., Bierlaire M. (2008) A multiple model approach for traffic signal optimization in the city of Lausanne. Proceedings of the Swiss Transport Research Conference (STRC), October 15-17, Monte Verita, Ascona, Switzerland


@InProceedings{oso_strc08,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {A multiple model approach for traffic signal optimization in the city of Lausanne},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), October 15-17},
  year = {2008},
  address = {Monte Verita, Ascona, Switzerland}}}

2007

Osorio C., Bierlaire M. (2007) Describing network congestion and blocking with an analytic queueing network model. Proceedings of the Swiss Transport Research Conference (STRC), September 12-14, Ascona, Switzerland


@InProceedings{OsoBierSTRC07,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {Describing network congestion and blocking with an analytic queueing network model},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), September 12-14},
  year = {2007},
  address = {Ascona, Switzerland}}}

Osorio C., Bierlaire M. (2007) An Analytic Finite Capacity Queueing Network Model Capturing Congestion and Spillbacks. Proceedings of the Proceedings of the Sixth Triennial Symposium on Transportation Analysis (TRISTAN), June 10-15, Phuket, Thailand


@InProceedings{OsoBier07,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {An Analytic Finite Capacity Queueing Network Model Capturing Congestion and Spillbacks},
  booktime = {Proceedings of the Proceedings of the Sixth Triennial Symposium on Transportation Analysis (TRISTAN), June 10-15},
  year = {2007},
  address = {Phuket, Thailand}}}

Talks

2011

Osorio C., Bierlaire M. Simulation-based optimization for urban traffic management November 16, 2011. Annual Meeting, INFORMS, Charlotte, NC.


@Misc{INFORMSCaro11,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {Simulation-based optimization for urban traffic management},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/INFORMSCaro11.pdf}},
  year = {2011},
  note = {Presented at Annual Meeting, INFORMS, Charlotte, NC}}}

Osorio C., Bierlaire M., Flötteröd G. Dynamic network loading: a differentiable approach that yields queue-length probability distributions November 13, 2011. Annual Meeting, INFORMS, Charlotte. NC.


@Misc{INFORMSCaro3_2011,
  author = {Carolina Osorio and Michel Bierlaire and Gunnar Fl\"otter\"od},
  title = {Dynamic network loading: a differentiable approach that yields queue-length probability distributions},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/INFORMSCaro3_2011.pdf}},
  year = {2011},
  note = {Presented at Annual Meeting, INFORMS, Charlotte. NC}}}

Osorio C., Flötteröd G. Probabilistic analytical modeling of spatial dependency in urban networks November 13, 2011. Annual Meeting, INFORMS, Charlotte. NC.


@Misc{INFORMSCaro4_2011,
  author = {Carolina Osorio and Gunnar Fl\"otter\"od},
  title = {Probabilistic analytical modeling of spatial dependency in urban networks},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/INFORMSCaro4_2011.pdf}},
  year = {2011},
  note = {Presented at Annual Meeting, INFORMS, Charlotte. NC}}}

Osorio C., Bierlaire M. Combining simulation-based and analytical traffic models to mitigate urban congestion June 28, 2011. Transportation Science and Logistics Society Workshop, INFORMS, Asilomar, CA, USA.


@Misc{INFORMSCaro2_2011,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {Combining simulation-based and analytical traffic models to mitigate urban congestion},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/INFORMSCaro2_2011.pdf}},
  year = {2011},
  note = {Presented at Transportation Science and Logistics Society Workshop, INFORMS, Asilomar, CA, USA}}}

Osorio C., Bierlaire M. Optimization of stochastic traffic simulators for urban traffic management May 13, 2011. Aerospace Computational Design Lab Seminar Series, MIT, Cambridge, MA.


@Misc{MITCaro_2011,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {Optimization of stochastic traffic simulators for urban traffic management},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/MITCaro_2011.pdf}},
  year = {2011},
  note = {Presented at Aerospace Computational Design Lab Seminar Series, MIT, Cambridge, MA}}}

Osorio C., Bierlaire M. A simulation-based optimization framework for urban traffic control April 21, 2011. Transportation Center Seminar Series, Northwestern University, Evanston, IL.


@Misc{NUTCCaro_2011,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {A simulation-based optimization framework for urban traffic control},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/NUTCCaro_2011.pdf}},
  year = {2011},
  note = {Presented at Transportation Center Seminar Series, Northwestern University, Evanston, IL}}}

Osorio C., Bierlaire M. A simulation-based optimization framework for urban traffic control March 11, 2011. 52nd Annual Transportation Reserach Forum, Long Beach, CA, USA.


@Misc{52TRFCaro_2011,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {A simulation-based optimization framework for urban traffic control},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/52TRFCaro_2011.pdf}},
  year = {2011},
  note = {Presented at 52nd Annual Transportation Reserach Forum, Long Beach, CA, USA}}}

Osorio C. Traveler information and traffic management systems February 04, 2011. Driver-facing Technologies To Improve Mobility, MIT, Cambridge, MA.


@Misc{MITCaro2_2011,
  author = {Carolina Osorio},
  title = {Traveler information and traffic management systems},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/MITCaro2_2011.pdf}},
  year = {2011},
  note = {Presented at Driver-facing Technologies To Improve Mobility, MIT, Cambridge, MA}}}

Osorio C., Bierlaire M. Simulation-based optimization of congested urban road networks January 26, 2011. 90th Annual Meeting, Transportation Research Board , Washington, DC.


@Misc{TRBCaro_2011,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {Simulation-based optimization of congested urban road networks},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/TRBCaro_2011.pdf}},
  year = {2011},
  note = {Presented at 90th Annual Meeting, Transportation Research Board , Washington, DC}}}

Osorio C., Bierlaire M. Mitigating network congestion: analytical models, optimization methods and their applications January 23, 2011. 90th Annual Meeting, Transportation Research Board, Washington, DC.


@Misc{TRBCaro2_2011,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {Mitigating network congestion: analytical models, optimization methods and their applications},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/TRBCaro2_2011.pdf}},
  year = {2011},
  note = {Presented at 90th Annual Meeting, Transportation Research Board, Washington, DC}}}

2010

Osorio C., Bierlaire M. Urban traffic control for congested networks: a novel metamodel simulation optimization approach July 16, 2010. Pan-American Conference of Traffic and Transportation Engineering and Logistics, Lisbon, Portugal.


@Misc{osorioPANAM2010,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {Urban traffic control for congested networks: a novel metamodel simulation optimization approach},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/osorioPANAM2010.pdf}},
  year = {2010},
  note = {Presented at Pan-American Conference of Traffic and Transportation Engineering and Logistics, Lisbon, Portugal}}}

Osorio C., Bierlaire M. A simulation-based optimization framework for urban traffic congestion management July 13, 2010. World Conference on Transport Research, Lisbon, Portugal.


@Misc{osorioWCTR2010,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {A simulation-based optimization framework for urban traffic congestion management},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/osorioWCTR2010.pdf}},
  year = {2010},
  note = {Presented at World Conference on Transport Research, Lisbon, Portugal}}}

Osorio C., Bierlaire M. A simulation-based optimization approach to perform urban traffic control June 22, 2010. TRISTAN VII, Triennial Symposium on Transportation Analysis, Tromsø, Norway.


@Misc{osorioTristan2010,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {A simulation-based optimization approach to perform urban traffic control},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/osorioTristan2010.pdf}},
  year = {2010},
  note = {Presented at TRISTAN VII, Triennial Symposium on Transportation Analysis, Troms\ø, Norway}}}

Osorio C., Bierlaire M. Coupling simulation-based and analytical traffic models to mitigate urban congestion May 04, 2010. MIT Transportation Seminar, Massachusetts Institute of Technology, Cambridge MA, USA.


@Misc{osorioMIT_may2010,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {Coupling simulation-based and analytical traffic models to mitigate urban congestion},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/osorioMIT_may2010.pdf}},
  year = {2010},
  note = {Presented at MIT Transportation Seminar, Massachusetts Institute of Technology, Cambridge MA, USA}}}

2009

Osorio C., Bierlaire M. A multi-model algorithm for the optimization of congested networks October 05, 2009. ETC, European Transport Conference, Noordwijkerhout, Netherlands.


@Misc{osorio_etc09,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {A multi-model algorithm for the optimization of congested networks},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/osorio_etc09.pdf}},
  year = {2009},
  note = {Presented at ETC, European Transport Conference, Noordwijkerhout, Netherlands}}}

Osorio C., Bierlaire M. A simulation optimization framework for the management of congested urban road networks September 10, 2009. STRC, 9th Swiss Transport Research Conference, Ascona, Switzerland.


@Misc{OsoSTRC09,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {A simulation optimization framework for the management of congested urban road networks},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/OsoSTRC09.pdf}},
  year = {2009},
  note = {Presented at STRC, 9th Swiss Transport Research Conference, Ascona, Switzerland}}}

Osorio C., Bierlaire M. A metamodel approach for simulation optimization of congested urban road networks May 01, 2009. Computational Management Science Conference, Geneva, Switzerland.


@Misc{osorio_cms,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {A metamodel approach for simulation optimization of congested urban road networks},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/osorio_cms.pdf}},
  year = {2009},
  note = {Presented at Computational Management Science Conference, Geneva, Switzerland}}}

Osorio C., Bierlaire M. Simulation-based optimization of congested urban networks March 03, 2009. ITS Research Seminar Series, Intelligent Transportation Systems Laboratory, Massachusetts Institute of Technology, Cambridge, MA, USA.


@Misc{co_ITS2,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {Simulation-based optimization of congested urban networks},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/co_ITS2.pdf}},
  year = {2009},
  note = {Presented at ITS Research Seminar Series, Intelligent Transportation Systems Laboratory, Massachusetts Institute of Technology, Cambridge, MA, USA}}}

2008

Osorio C., Bierlaire M. Accounting for congestion and spillbacks in fixed-time traffic signal optimization: a queueing network approach November 04, 2008. ITS Research Seminar Series, Intelligent Transportation Systems Laboratory, Massachusetts Institute of Technology, Cambridge, MA, USA.


@Misc{osorioITS,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {Accounting for congestion and spillbacks in fixed-time traffic signal optimization: a queueing network approach},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/osorioITS.pdf}},
  year = {2008},
  note = {Presented at ITS Research Seminar Series, Intelligent Transportation Systems Laboratory,   Massachusetts Institute of Technology, Cambridge, MA, USA}}}

Osorio C., Bierlaire M. A multiple model approach for traffic signal optimization in the city of Lausanne October 16, 2008. STRC, 8th Swiss Transport Research Conference, , Monte Verita, Ascona, Switzerland.


@Misc{osoStrc08b,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {A multiple model approach for traffic signal optimization in the city of Lausanne},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/osoStrc08b.pdf}},
  year = {2008},
  note = {Presented at STRC, 8th Swiss Transport Research Conference, , Monte Verita, Ascona, Switzerland}}}

Osorio C., Bierlaire M. Network performance optimization using a queueing network model October 06, 2008. ETC, European Transport Conference, Noordwijkerhout, Netherlands.


@Misc{osoETC08,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {Network performance optimization using a queueing network model},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/osoETC08.pdf}},
  year = {2008},
  note = {Presented at ETC, European Transport Conference, Noordwijkerhout, Netherlands}}}

Osorio C., Bierlaire M. Network performance evaluation and optimization using a queueing network model September 22, 2008. CSII, Ciclo de Seminarios de Ingeniería Industrial, Universidad de los Andes, Bogotá, Colombia.


@Misc{csii_co,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {Network performance evaluation and optimization using a queueing network model},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/csii_co.pdf}},
  year = {2008},
  note = {Presented at CSII, Ciclo de Seminarios de Ingenier\ía Industrial, Universidad de los Andes, Bogot\á, Colombia}}}

Osorio C., Bierlaire M. Signal control optimization with a queueing network model capturing congestion September 16, 2008. PANAM XV, Pan-American Conference on Traffic and Transportation Engineering, , Cartagena, Colombia.


@Misc{panam08_co,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {Signal control optimization with a queueing network model capturing congestion},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/panam08_co.pdf}},
  year = {2008},
  note = {Presented at PANAM XV,  Pan-American Conference on Traffic and Transportation Engineering, , Cartagena, Colombia}}}

Osorio C., Bierlaire M. A queueing network approach to the traffic signal optimization of the Lausanne city center September 10, 2008. CLAIO XIV, Latin-Ibero-American Conference on Operations Research, , Cartagena, Colombia.


@Misc{claio08_co,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {A queueing network approach to the traffic signal optimization of the Lausanne city center},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/claio08_co.pdf}},
  year = {2008},
  note = {Presented at CLAIO XIV,  Latin-Ibero-American Conference on Operations Research, , Cartagena, Colombia}}}

Osorio C., Bierlaire M. Optimizaci�n de sem�foros en el centro de Lausana mediante un modelo de filas de espera May 17, 2008. ACIS, Primer Simposio Asociación Colombiana de Investigadores en Suiza, Lausana, Suiza.


@Misc{ACIS08,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {Optimizaci\'on de sem\'aforos en el centro de Lausana mediante un modelo de filas de espera},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/ACIS08.pdf}},
  year = {2008},
  note = {Presented at ACIS, Primer Simposio Asociaci\ón Colombiana de Investigadores en Suiza, Lausana, Suiza}}}

2007

Osorio C., Bierlaire M. Describing network congestion and blocking with an analytic queueing network model September 13, 2007. STRC, 7th Swiss Transport Research Conference, Ascona, Switzerland.


@Misc{STRC07_CO,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {Describing network congestion and blocking with an analytic queueing network model},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/STRC07_CO.pdf}},
  year = {2007},
  note = {Presented at STRC, 7th Swiss Transport Research Conference, Ascona, Switzerland}}}

Osorio C., Bierlaire M. An analytic finite capacity queueing network model capturing congestion and spillbacks June 11, 2007. TRISTAN VI, Triennial Symposium on Transportation Analysis, EPFL, Phuket Island, Thailand.


@Misc{TRISTAN-CO,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {An analytic finite capacity queueing network model capturing congestion and spillbacks},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/TRISTAN-CO.pdf}},
  year = {2007},
  note = {Presented at TRISTAN VI, Triennial Symposium on Transportation Analysis, EPFL, Phuket Island, Thailand}}}

Osorio C., Bierlaire M. Capturing blocking and spillback in finite capacity queueing networks May 24, 2007. Selected chapters from operations research, Mathematics Doctoral School, EPFL, Lausanne, Switzerland.


@Misc{OsoED07,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {Capturing blocking and spillback in finite capacity queueing networks},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/OsoED07.pdf}},
  year = {2007},
  note = {Presented at Selected chapters from operations research, Mathematics Doctoral School, EPFL, Lausanne, Switzerland}}}

Osorio C., Bierlaire M. Analysis of finite capacity queueing networks March 07, 2007. 3ième cycle romand de recherche opérationnelle, Zinal, Switzerland.


@Misc{OsoZinal07,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {Analysis of finite capacity queueing networks},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/OsoZinal07.pdf}},
  year = {2007},
  note = {Presented at 3i\ème cycle romand de recherche op\érationnelle, Zinal, Switzerland}}}

2006

Osorio C., Bierlaire M. Analysis of finite capacity queueing networks September 15, 2006. 4th Joint Operations Research Days, EPFL, Lausanne.


@Misc{IBM06CARO,
  author = {Carolina Osorio and Michel Bierlaire},
  title = {Analysis of finite capacity queueing networks},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/IBM06CARO.pdf}},
  year = {2006},
  note = {Presented at 4th Joint Operations Research Days, EPFL, Lausanne}}}

Osorio C. Finite capacity queueing networks May 30, 2006. Selected chapters from discrete optimization, Mathematics Doctoral School, EPFL.


@Misc{PHDCOUR06,
  author = {Carolina Osorio},
  title = {Finite capacity queueing networks},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/PHDCOUR06.pdf}},
  year = {2006},
  note = {Presented at Selected chapters from discrete optimization, Mathematics Doctoral School, EPFL}}}

Awards

2016

Carolina Osorio Pizano, Michel Bierlaire. Outstanding Paper in Urban Transportation Planning and Modeling, Transportation Science and Logistics Society, INFORMS.

2012

Carolina Osorio Pizano. EURO Doctoral Dissertation Award, European Association of Operational Research Societies.
The purpose of the prize is to distinguish an outstanding PhD thesis in Operational Research defended in the countries having an OR society that is member of the EURO..

2011

Carolina Osorio Pizano. Graduate Student Best Paper Award, Transportation Research Forum.
Carolina Osorio received the Graduate Student Best Paper Award from the Transportation Research Forum (TRF) during the annual meeting that took place in Long Beach, California, March 10-12, 2011 for the paper "A simulation-based optimization framework for urban traffic control"..

Reviewing

Research projects

2007

SOPHOS: Simulation-based Optimization of the Performance in Hospital Operating suites

Design an optimization framework combining macroscopic and microscopic models, with applications in hospital management and urban road traffic.
- Dec 01, 2007 - Nov 30, 2009
- Sponsor: Swiss National Science Foundation
- Principal investigator: Michel Bierlaire
- Project manager: Carolina Osorio Pizano

2006

Location of distribution centres

Optimization of the location of distribution centres for Postlogistics, Switzerland
- Mar 15, 2006 - Aug 21, 2006
- Sponsor: Transport and Mobility Laboratory, EPFL
- Principal investigator: Michel Bierlaire
- Project manager: Carolina Osorio Pizano
- Collaborator: Thomas Robin

2005

SOPHOS: Simulation-based Optimization of the Performance in Hospital Operating Suites

Design an optimization framework for the operation suites in hospitals, using simulation tools
- Dec 01, 2005 - Nov 30, 2007
- Sponsor: Swiss National Science Foundation
- Principal investigator: Michel Bierlaire
- Project manager: Carolina Osorio Pizano

EPFL courses

Fall 2007

Mod�lisation math�matique du comportement.
- Level: Master
- Section: Mathematics
- Lecturer: Michel Bierlaire
- Teaching assistants: Carolina Osorio Pizano, Thomas Robin

Fall 2006

Mod�lisation math�matique du comportement.
- Level: Master
- Section: Mathematics
- Lecturer: Michel Bierlaire
- Teaching assistant: Carolina Osorio Pizano

Various lectures

2010

Estimation of binary choice models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 07, 2010 - Feb 11, 2010
- Lecturer: Michel Bierlaire
- Assistants: Carolina Osorio Pizano, Thomas Robin
Multivariate Extreme Value Models - Sampling and Estimatio.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 07, 2010 - Feb 11, 2010
- Lecturer: Michel Bierlaire
- Assistants: Carolina Osorio Pizano, Thomas Robin
Mixture Models; Simulation-based Estimation.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 07, 2010 - Feb 11, 2010
- Lecturer: Michel Bierlaire
- Assistants: Carolina Osorio Pizano, Thomas Robin
Specification and Estimation of Logit Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 07, 2010 - Feb 11, 2010
- Lecturer: Michel Bierlaire
- Assistants: Carolina Osorio Pizano, Thomas Robin
Estimation of Discrete Choice Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 07, 2010 - Feb 11, 2010
- Lecturer: Michel Bierlaire
- Assistants: Carolina Osorio Pizano, Thomas Robin

2009

Estimation of binary choice models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 24, 2009 - Mar 28, 2009
- Lecturer: Michel Bierlaire
- Assistants: Carolina Osorio Pizano, Thomas Robin
Specification and Estimation of Logit Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 24, 2009 - Mar 28, 2009
- Lecturer: Michel Bierlaire
- Assistants: Carolina Osorio Pizano, Thomas Robin
Estimation of Discrete Choice Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 24, 2009 - Mar 28, 2009
- Lecturer: Michel Bierlaire
- Assistants: Carolina Osorio Pizano, Thomas Robin
Mixture Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 24, 2009 - Mar 28, 2009
- Lecturer: Michel Bierlaire
- Assistants: Carolina Osorio Pizano, Thomas Robin

2008

.
- Modeling and Simulation in Logistics, International Institute for the Management of Logistics, Lausanne, Switzerland
- May 19, 2008 - May 23, 2008
- Lecturer: Michel Bierlaire
- Assistant: Carolina Osorio Pizano
Estimation of binary choice models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 25, 2008 - Mar 29, 2008
- Lecturer: Michel Bierlaire
- Assistants: Carolina Osorio Pizano, Thomas Robin
Multivariate Extreme Value Models - Sampling Strategies.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 25, 2008 - Mar 29, 2008
- Lecturer: Michel Bierlaire
- Assistants: Carolina Osorio Pizano, Thomas Robin
Specification and Estimation of Logit Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Mar 25, 2008 - Mar 29, 2008
- Lecturer: Michel Bierlaire
- Assistants: Carolina Osorio Pizano, Thomas Robin

2007

Mod�lisation et simulation en logistique.
- Mod�lisation et simulation en logistique, Institut International de Management pour la Logistique, Paris, France
- Dec 13, 2007
- Lecturer: Carolina Osorio Pizano
Mod�lisation et simulation du comportement -Mod�les de choix discret.
- Mod�lisation et simulation en logistique, Institut International de Management pour la Logistique, Paris, France
- Dec 10, 2007 - Dec 14, 2007
- Lecturer: Michel Bierlaire
- Assistant: Carolina Osorio Pizano
Simulation.
- Decision Models, EPFL, Lausanne, Switzerland
- Dec 03, 2007
- Lecturer: Carolina Osorio Pizano
Simulation tools.
- Decision Models, EPFL, Lausanne, Switzerland
- Nov 26, 2007
- Lecturer: Carolina Osorio Pizano
Modeling and Simulation Case Studies.
- Modeling and Simulation in Logistics, International Institute for the Management of Logistics, Lausanne, Switzerland
- Apr 30, 2007 - May 04, 2007
- Lecturer: Emma Frejinger
- Assistant: Carolina Osorio Pizano

2006

Mod�lisation du comportement humain: m�thodologie.
- Mod�lisation et simulation en logistique, Institut International de Management pour la Logistique, Paris, France
- Dec 11, 2006 - Dec 15, 2006
- Lecturer: Michel Bierlaire
- Assistants: Emma Frejinger, Carolina Osorio Pizano
Mod�lisation et simulation de gestion de stocks.
- Mod�lisation et simulation en logistique, Institut International de Management pour la Logistique, Paris, France
- Dec 11, 2006 - Dec 15, 2006
- Lecturer: Emma Frejinger
- Assistant: Carolina Osorio Pizano
Mod�lisation du comportement humain: m�thodologie.
- Modeling and Simulation in Logistics, International Institute for the Management of Logistics, Lausanne, Switzerland
- May 01, 2006 - May 05, 2006
- Lecturer: Michel Bierlaire
- Assistants: Carolina Osorio Pizano, Emma Frejinger
Simulation in inventory modeling.
- Modeling and Simulation in Logistics, International Institute for the Management of Logistics, Lausanne, Switzerland
- May 01, 2006 - May 05, 2006
- Lecturer: Emma Frejinger
- Assistant: Carolina Osorio Pizano

Master theses

2006-2007

Customer Centric Revenue Management, Marjorie Benz (Mathematics)
- Supervision: Michel Bierlaire, Carolina Osorio Pizano
- External expert: Daniel Rueda, OpenPricer

Semester projects

2008

Optimization of Lausanne's traffic signal timings, Yanjun Zhang (Civil Engineering)

Supervision: Carolina Osorio Pizano
The aim of this project is to optimize the traffic signal settings of the network of the city of Lausanne. The phases of the project are as follows. The student will: - provide an overview of the existing formulations for this optimization problem; - propose a formulation, this formulation may be taken from exisiting studies; - implement the problem on a subnetwork of the city of Lausanne, the student will be given access to a Matlab code which may need to be adapted according to the formulation; - analyse and discuss the results. Basic knowledge of Matlab is required for this project.

2007

Graphical interface for a JAVA simulator, Fetiarison Mamy Nirina

Supervision: Carolina Osorio Pizano
Project aim: The aim of this project is to implement a graphical interface for an existing discrete event simulator. Description: Numerical simulators are often used to evaluate the impact of changing the characteristics of an already existing system (e.g infrastructure improvements in highways). Such computer models can also be used to evaluate modifications under hypothetical scenarios that would be difficult to observe in the real world (e.g. predict future congestion levels, based on demographic forecasts.) These numerical simulators mimic the behavior of complex systems, yielding performance measures that are rich in information. In order to take full advantage of this detailed information, and to be able to summarize it in a user friendly manner, a graphical interface is crucial. The aim of this project is to implement a graphical interface for a numerical simulator. The student will be given a JAVA implemented discrete event simulator that studys the flow of units (e.g. vehicles, pedestrians) through a network (e.g. highways, corridors). The aim will be to implement an attractive graphical interface that will summarize and illustrate the main performance measures that the simulator yields.

Deadlock detection, Anken Nicolas (Mathematics)

Supervision: Carolina Osorio Pizano
The spillback phenomenon frequently arises in urban traffic networks under congestion. If the network contains loops then spillback is a potential source of dealocks, also known as gridlocks. In this project the student will be given acces to a network simulation tool. Based on empirical studies of simple networks under deadlock the student will: 1) identify preformance measures that indicate the presence of deadlocks 2) propose analytical performance measures that may help detect deadlocks 3) validate the proposed performance measures

2006-2007

Simulation of finite capacity queueing networks, Meier Pirmin (Mathematics)

Supervision: Carolina Osorio Pizano
The aim of this project is to reproduce via numerical simulation the behaviour of a network of finite capacity queues. The simulation tool is to be both implemented and validated. The tool shall be used to analyse the HUG (Geneva University Hospital) hospital room network.

Service

Ongoing

Completed

Editor - Special Issue, Transportation Research Part C (Jul 01, 2010 - Apr 01, 2012)

Emma Frejinger

Emma Frejinger has been a member of the laboratory from May 01, 2004 to Oct 31, 2008

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Emma Frejinger.

Journal articles

2010

Gao S., Frejinger E., Ben-Akiva M. (2010). Adaptive Route Choices in Risky Traffic Networks: A Prospect Theory Approach. Transportation Research Part C: Emerging Technologies 18 (5):727-740


@Article{GaoFrejBenA09,
  author = {Song Gao and Emma Frejinger and Moshe Ben-Akiva},
  title = {Adaptive Route Choices in Risky Traffic Networks: A Prospect Theory Approach},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2010},
  volume = {18},
  number = {5},
  pages = {727-740},
  DOI = {10.1016/j.trc.2009.08.001},
  note = {Accepted on Aug 06, 2009}}}

2009

Frejinger E., Bierlaire M., Ben-Akiva M. (2009). Sampling of Alternatives for Route Choice Modeling. Transportation Research Part B: Methodological 43 (10):984-994

This paper presents a new paradigm for choice set generation in the context of route choice model estimation. We assume that the choice sets contain all paths connecting each origin-destination pair. Although this is behaviorally questionable, we make this assumption in order to avoid bias in the econometric model. These sets are in general impossible to generate explicitly. Therefore, we propose an importance sampling approach to generate subsets of paths suitable for model estimation. Using only a subset of alternatives requires the path utilities to be corrected according to the sampling protocol in order to obtain unbiased parameter estimates. We derive such a sampling correction for the proposed algorithm.
```
@Article{FrejBierBenA09,
  author = {Emma Frejinger and Michel Bierlaire and Moshe Ben-Akiva},
  title = {Sampling of Alternatives for Route Choice Modeling},
  journal = {Transportation Research Part B: Methodological},
  year = {2009},
  volume = {43},
  number = {10},
  pages = {984-994},
  DOI = {10.1016/j.trb.2009.03.001},
  note = {Accepted on Mar 03, 2009}}}
```

2008

Gao S., Frejinger E., Ben-Akiva M. (2008). Adaptive Route Choice Models in Stochastic Time-Dependent Networks. Transportation Research Record 2085 :136-143


@Article{GaoFrejBenA08,
  author = {Song Gao and Emma Frejinger and Moshe Ben-Akiva},
  title = {Adaptive Route Choice Models in Stochastic Time-Dependent Networks},
  journal = {Transportation Research Record},
  year = {2008},
  volume = {2085},
  pages = {136-143},
  DOI = {10.3141/2085-15},
  note = {Accepted on Mar 12, 2008}}}

Bierlaire M., Frejinger E. (2008). Route choice modeling with network-free data. Transportation Research Part C: Emerging Technologies 16 (2):187-198

Route choice models are difficult to design and to estimate for various reasons. In this paper we focus on issues related to data. Indeed, real data in its original format are not related to the network used by the modeler and do therefore not correspond to path definitions. Typical examples are data collected with the Global Positioning System (GPS) or respondents describing chosen itineraries to interviewers. Data manipulation is then necessary in order to obtain network compliant paths. We argue that such manipulations introduce bias and errors and should be avoided. We propose a general modeling framework that reconcile network-free data with a network based model without data manipulations. The concept that bridges the gap between the data and the model is called Domain of Data Relevance and corresponds to a physical area in the network where a given piece of data is relevant. We illustrate the framework on simple examples for two different types of data (GPS data and reported trips). Moreover, we present estimation results of Path Size Logit and Subnetwork models based on a dataset of reported trips collected in Switzerland. The network is to our knowledge the largest one used in the literature for route choice analysis based on revealed preferences data.
```
@Article{BierFrej07,
  author = {Michel Bierlaire and Emma Frejinger},
  title = {Route choice modeling with network-free data},
  journal = {Transportation Research Part C: Emerging Technologies},
  year = {2008},
  volume = {16},
  number = {2},
  pages = {187-198},
  DOI = {10.1016/j.trc.2007.07.007},
  note = {Accepted on Jul 23, 2007}}}
```

2007

Frejinger E., Bierlaire M. (2007). Capturing correlation with subnetworks in route choice models. Transportation Research Part B: Methodological 41 (3):363-378

When using random utility models for a route choice problem, a critical issue is the significant correlation among alternatives. There are basically two types of models proposed in the literature to address it: (i) a deterministic correction of the path utilities in a Multinomial Logit model (such as the Path Size Logit or the C-Logit models) and (ii) an explicit modeling of the correlation through assumptions about the error terms, and the use of advanced discrete choice models such as the Cross-Nested Logit or the Error Component models. The first is simple, easy to handle and often used in practice. Unfortunately, it does not correctly capture the correlation structure, as we discuss in details in the paper. The second is more consistent with the modeling objectives, but very complicated to specify and estimate. The modeling framework proposed in this paper allows the analyst to control the trade-off between the simplicity of the model and the level of realism. Within this framework, the key concept capturing the correlation structure is called a subnetwork. A subnetwork is a simplification of the road network only containing easy identifiable and behaviorally relevant roads. In practice, the subnetwork can easily be defined based on the route network hierarchy. The importance and the originality of our approach lie in the possibility to capture the most important correlation without considerably increasing the model complexity. This makes it suitable for a wide spectrum of applications, namely involving realistic large-scale networks. As an illustration, we present estimation results of a factor analytic specification of a mixture of Multinomial Logit model, where the correlation among paths is captured by error components. The estimation is based on a GPS dataset collected in the Swedish city of Borlänge. The results show a significant increase in model fit and forecasting performance for the Error Component model compared to a Path Size Logit model. Moreover, the correlation parameters are significant.
```
@Article{FrejBier07,
  author = {Emma Frejinger and Michel Bierlaire},
  title = {Capturing correlation with subnetworks in route choice models},
  journal = {Transportation Research Part B: Methodological},
  year = {2007},
  volume = {41},
  number = {3},
  pages = {363-378},
  DOI = {10.1016/j.trb.2006.06.003}}}
```

Book chapters

2024

Bierlaire M., Frejinger E., Hillel T. (2024) Dynamic choice models. In S. Hess and A. Daly (ed) Handbook of Choice Modelling, Edward Elgar Publishing , Cheltenham, UK [ISBN 9781800375628]


@InProceedings{BierFrejHill24,
  author = {Michel Bierlaire and Emma Frejinger and Tim Hillel},
  title = {Dynamic choice models},
  year = {2024},
  booktile = {Handbook of Choice Modelling},
  editor = {S. Hess and A. Daly},
  publisher = {Edward Elgar Publishing},
  address = {Cheltenham, UK},
  pages = {568-593}}}

2010

Frejinger E., Bierlaire M. (2010) On Path Generation Algorithms for Route Choice Models. In S. Hess and A. Daly (ed) Choice Modelling: The State-of-the-Art and the State-of-Practice, Emerald Group Publishing Limited [ISBN 978-1-84950-772-1]


@InProceedings{FrejBier10,
  author = {Emma Frejinger and Michel Bierlaire},
  title = {On Path Generation Algorithms for Route Choice Models},
  year = {2010},
  booktile = {Choice Modelling: The State-of-the-Art and the State-of-Practice},
  editor = {S. Hess and A. Daly},
  publisher = {Emerald Group Publishing Limited},
  pages = {307-315}}}

Technical reports

2007

Frejinger E., Bierlaire M. (2007). Sampling of Alternatives for Route Choice Modeling. Report TRANSP-OR 071121


@TechReport{FrejBier07,
  author = {Emma Frejinger and Michel Bierlaire},
  title = {Sampling of Alternatives for Route Choice Modeling},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2007},
  type = {Technical Report},
  number = {TRANSP-OR 071121},
  address = {Lausanne, Switzerland}}}

Gao S., Frejinger E., Ben-Akiva M. (2007). Adaptive Route Choice Models in Stochastic Time-Dependent Networks. Report TRANSP-OR 070730


@TechReport{GaoFrejBenA07,
  author = {Song Gao and Emma Frejinger and Moshe Ben-Akiva},
  title = {Adaptive Route Choice Models in Stochastic Time-Dependent Networks},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2007},
  type = {Technical Report},
  number = {TRANSP-OR 070730},
  address = {Lausanne, Switzerland}}}

Bierlaire M., Frejinger E. (2007). Route choice modeling with network-free data. Report TRANSP-OR 070214


@TechReport{BierFrej07,
  author = {Michel Bierlaire and Emma Frejinger},
  title = {Route choice modeling with network-free data},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2007},
  type = {Technical Report},
  number = {TRANSP-OR 070214},
  address = {Lausanne, Switzerland}}}

Bierlaire M., Frejinger E. (2007). Technical note: A Stochastic Choice Set Generation Algorithm. Report TRANSP-OR 070213


@TechReport{BierFrej07note,
  author = {Michel Bierlaire and Emma Frejinger},
  title = {Technical note: A Stochastic Choice Set Generation Algorithm},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2007},
  type = {Technical Report},
  number = {TRANSP-OR 070213},
  address = {Lausanne, Switzerland}}}

2006

Frejinger E., Bierlaire M. (2006). Capturing correlation in large-scale route choice models. Report GR-BIE-REPORT-2006-002


@TechReport{FrejBier06,
  author = {Emma Frejinger and Michel Bierlaire},
  title = {Capturing correlation in large-scale route choice models},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2006},
  type = {Technical Report},
  number = {GR-BIE-REPORT-2006-002},
  address = {Lausanne, Switzerland}}}

Vrtic M., Schuessler N., Erath A., Axhausen K., Frejinger E., Stojanovic J., Bierlaire M., Rudel R., Maggi R. (2006). Including travelling costs in the modelling of mobility behaviour. Report


@TechReport{VRTICETAL06,
  author = {Milenko Vrtic and Nadine Schuessler and Alexander Erath and Kay Axhausen and Emma Frejinger and Jelena Stojanovic and Michel Bierlaire and Roman Rudel and Rico Maggi},
  title = {Including  travelling costs in the modelling of mobility behaviour},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2006},
  type = {Technical Report},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2008

Gao S., Frejinger E., Ben-Akiva M. (2008) Adaptive Route Choice Models in Stochastic Time-Dependent Networks. Proceedings of the Proceedings of the 87th Annual Meeting of Transportation Research BoardJan. 12-17, Washington, DC, US


@InProceedings{GaoFrejBenA08,
  author = {Song Gao and Emma Frejinger and Moshe Ben-Akiva},
  title = {Adaptive Route Choice Models in Stochastic Time-Dependent Networks},
  booktime = {Proceedings of the Proceedings of the 87th Annual Meeting of Transportation Research Board, Jan. 12-17},
  year = {2008},
  address = {Washington, DC, US}}}

Gao S., Frejinger E., Ben-Akiva M. (2008) Adaptive Route Choice Models. Proceedings of the Proceedings of the 10th International Conference on Applications of Advanced Technologies in Transportation (AATT), May 28-30, Athens, Greece


@InProceedings{GaoFrejBenA08b,
  author = {Song Gao and Emma Frejinger and Moshe Ben-Akiva},
  title = {Adaptive Route Choice Models},
  booktime = {Proceedings of the Proceedings of the 10th International Conference on Applications of Advanced Technologies in Transportation (AATT), May 28-30},
  year = {2008},
  address = {Athens, Greece}}}

2007

Frejinger E. (2007) Random Sampling of Alternatives in a Route Choice Context. Proceedings of the European Transport Conference (ETC), October 17-19, Leiden, The Netherlands


@InProceedings{Frej07,
  author = {Emma Frejinger},
  title = {Random Sampling of Alternatives in a Route Choice Context},
  booktime = {Proceedings of the European Transport Conference (ETC), October 17-19},
  year = {2007},
  address = {Leiden, The Netherlands}}}

Frejinger E., Bierlaire M. (2007) Random Sampling of Alternatives for Route Choice Modeling. Proceedings of the Swiss Transport Research Conference (STRC), September 12-14, Ascona, Switzerland


@InProceedings{FrejBier07_STRC,
  author = {Emma Frejinger and Michel Bierlaire},
  title = {Random Sampling of Alternatives for Route Choice Modeling},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), September 12-14},
  year = {2007},
  address = {Ascona, Switzerland}}}

Frejinger E., Bierlaire M. (2007) Stochastic Path Generation Algorithm for Route Choice Models. Proceedings of the Sixth Triennial Symposium on Transportation Analysis (TRISTAN), June 10-15, Phuket Island, Thailand


@InProceedings{FrejBier07a,
  author = {Emma Frejinger and Michel Bierlaire},
  title = {Stochastic Path Generation Algorithm for Route Choice Models},
  booktime = {Proceedings of the Sixth Triennial Symposium on Transportation Analysis (TRISTAN), June 10-15},
  year = {2007},
  address = {Phuket Island, Thailand}}}

2006

Bierlaire M., Frejinger E., Stojanovic J. (2006) A latent route choice model in Switzerland. Proceedings of the European Transport Conference (ETC), September 18-20, Strasbourg, France


@InProceedings{BierFrejStoj06,
  author = {Michel Bierlaire and Emma Frejinger and Jelena Stojanovic},
  title = {A latent route choice model in Switzerland},
  booktime = {Proceedings of the European Transport Conference (ETC), September 18-20},
  year = {2006},
  address = {Strasbourg, France}}}

Frejinger E., Bierlaire M. (2006) Capturing correlation with subnetworks in route choice models. Proceedings of the 11th International Conference on Travel Behaviour Research (IATBR), August 16-20, Kyoto, Japan


@InProceedings{FrejBier06b,
  author = {Emma Frejinger and Michel Bierlaire},
  title = {Capturing correlation with subnetworks in route choice models},
  booktime = {Proceedings of the 11th International Conference on Travel Behaviour Research (IATBR), August 16-20},
  year = {2006},
  address = {Kyoto, Japan}}}

Frejinger E., Bierlaire M. (2006) Capturing Correlation in Route Choice Models using Subnetworks. Proceedings of the Swiss Transport Research Conference (STRC), March 15-17, Ascona, Switzerland


@InProceedings{FrejBier06a,
  author = {Emma Frejinger and Michel Bierlaire},
  title = {Capturing Correlation in Route Choice Models using Subnetworks},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), March 15-17},
  year = {2006},
  address = {Ascona, Switzerland}}}

2005

Bierlaire M., Frejinger E. (2005) Route choice models with subpath components. Proceedings of the Swiss Transportation Research Conference (STRC), March, 09-13, Ascona, Switzerland


@InProceedings{BierFrej05,
  author = {Michel Bierlaire and Emma Frejinger},
  title = {Route choice models with subpath components},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), March, 09-13},
  year = {2005},
  address = {Ascona, Switzerland}}}

Talks

2008

Gao S., Frejinger E., Ben-Akiva M. Adaptive route choices in risky networks August 28, 2008. Workshop on Discrete Choice Models, EPFL, Lausanne, Switzerland.


@Misc{GaoFrejBenA08,
  author = {Song Gao and Emma Frejinger and Moshe Ben-Akiva},
  title = {Adaptive route choices in risky networks},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/GaoFrejBenA08.pdf}},
  year = {2008},
  note = {Presented at Workshop on Discrete Choice Models, EPFL, Lausanne, Switzerland}}}

2007

Frejinger E. Random Sampling of Alternatives in a Route Choice Context October 19, 2007. European Transport Conference, Leiden, The Netherlands.


@Misc{Frej07_ETC,
  author = {Emma Frejinger},
  title = {Random Sampling of Alternatives in a Route Choice Context},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Frej07_ETC.pdf}},
  year = {2007},
  note = {Presented at European Transport Conference, Leiden, The Netherlands}}}

Frejinger E. Path Sampling for the Estimation of Route Choice Models October 12, 2007. Seminar, Department of Transport and Economics, Royal Institute of Technology, Stockholm, Sweden.


@Misc{Frej07_KTH,
  author = {Emma Frejinger},
  title = {Path Sampling for the Estimation of Route Choice Models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Frej07_KTH.pdf}},
  year = {2007},
  note = {Presented at Seminar, Department of Transport and Economics, Royal Institute of Technology, Stockholm, Sweden}}}

Frejinger E., Bierlaire M. Random Sampling of Alternatives for Route Choice Modeling September 12, 2007. Swiss Transport Research Conference, , Ascona, Switzerland.


@Misc{STRC07_fre,
  author = {Emma Frejinger and Michel Bierlaire},
  title = {Random Sampling of Alternatives for Route Choice Modeling},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/STRC07_fre.pdf}},
  year = {2007},
  note = {Presented at Swiss Transport Research Conference, , Ascona, Switzerland}}}

Frejinger E., Bierlaire M. Choice set generation for route choice models using a sampling approach August 31, 2007. Third Workshop on Discrete Choice Models, Transport and Mobility Laboratory, EPFL, Lausanne, Switzerland.


@Misc{WDCA07_ef,
  author = {Emma Frejinger and Michel Bierlaire},
  title = {Choice set generation for route choice models using a sampling approach},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/WDCA07_ef.pdf}},
  year = {2007},
  note = {Presented at Third Workshop on Discrete Choice Models, Transport and Mobility Laboratory, EPFL, Lausanne, Switzerland}}}

Frejinger E., Bierlaire M. Stochastic Path Generation Algorithm for Route Choice Models June 12, 2007. TRISTAN VI, Phuket, Thailand.


@Misc{TRISTAN-EF,
  author = {Emma Frejinger and Michel Bierlaire},
  title = {Stochastic Path Generation Algorithm for Route Choice Models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/TRISTAN-EF.pdf}},
  year = {2007},
  note = {Presented at TRISTAN VI, Phuket, Thailand}}}

Frejinger E., Bierlaire M. Importance sampling of alternatives for route choice models May 24, 2007. Doctoral school, EPFL, Lausanne, Switzerland.


@Misc{Frej07,
  author = {Emma Frejinger and Michel Bierlaire},
  title = {Importance sampling of alternatives for route choice models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Frej07.pdf}},
  year = {2007},
  note = {Presented at Doctoral school, EPFL, Lausanne, Switzerland}}}

Bierlaire M., Frejinger E. Route choice modeling based on network-free data March 06, 2007. Séminaire du 3ème cycle romand de Recherche Opérationnelle, Zinal, Switzerland.


@Misc{ZINAL07-EM,
  author = {Michel Bierlaire and Emma Frejinger},
  title = {Route choice modeling based on network-free data},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/ZINAL07-EM.pdf}},
  year = {2007},
  note = {Presented at S\éminaire du 3\ème cycle romand de Recherche Op\érationnelle, Zinal, Switzerland}}}

2006

Frejinger E. Recent developments in route choice modeling October 05, 2006. Seminar, Intelligent Transportation Systems Program, Massachussetts Institute of Technology, Cambridge, Ma (USA).


@Misc{MIT06EMMA,
  author = {Emma Frejinger},
  title = {Recent developments in route choice modeling},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/MIT06EMMA.pdf}},
  year = {2006},
  note = {Presented at Seminar, Intelligent Transportation Systems Program, Massachussetts Institute of Technology, Cambridge, Ma (USA)}}}

Bierlaire M., Frejinger E., Stojanovic J. A latent route choice model in Switzerland September 19, 2006. European Transport Conference, Strasbourg, France.


@Misc{ETC06EMM,
  author = {Michel Bierlaire and Emma Frejinger and Jelena Stojanovic},
  title = {A latent route choice model in Switzerland},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/ETC06EMM.pdf}},
  year = {2006},
  note = {Presented at European Transport Conference, Strasbourg, France}}}

Frejinger E., Bierlaire M. A route choice model suitable for traffic simulation September 05, 2006. International Symposium of Traffic Simulation 2006, EPFL, Lausanne.


@Misc{ISTS06EMM,
  author = {Emma Frejinger and Michel Bierlaire},
  title = {A route choice model suitable for traffic simulation},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/ISTS06EMM.pdf}},
  year = {2006},
  note = {Presented at International Symposium of Traffic Simulation 2006, EPFL, Lausanne}}}

Frejinger E., Bierlaire M. Capturing Correlation in Route Choice Models using Subnetworks August 18, 2006. 11th International Conference on Travel Behaviour Research, Kyoto, Japan.


@Misc{IATBR06EM,
  author = {Emma Frejinger and Michel Bierlaire},
  title = {Capturing Correlation in Route Choice Models using Subnetworks},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/IATBR06EM.pdf}},
  year = {2006},
  note = {Presented at 11th International Conference on Travel Behaviour Research, Kyoto, Japan}}}

Frejinger E. Development of route choice models May 16, 2006. Doctoral School, EPFL, Lausanne, Switzerland.


@Misc{LAU06-EMM,
  author = {Emma Frejinger},
  title = {Development of route choice models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/LAU06-EMM.pdf}},
  year = {2006},
  note = {Presented at Doctoral School, EPFL, Lausanne, Switzerland}}}

Frejinger E., Bierlaire M. Capturing correlation in route choice models using subpaths and subnetworks March 15, 2006. Swiss Transportation Research Conference, Ascona, Switzerland.


@Misc{STRC06-EMM,
  author = {Emma Frejinger and Michel Bierlaire},
  title = {Capturing correlation in route choice models using subpaths and subnetworks},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/STRC06-EMM.pdf}},
  year = {2006},
  note = {Presented at Swiss Transportation Research Conference, Ascona, Switzerland}}}

2005

Frejinger E., Bierlaire M. Capturing Overlap with Subpaths in Route Choice Models September 01, 2005. First Workshop on Applications of Discrete Choice Models, Lausanne, Switzerland.


@Misc{DCA05-EMM,
  author = {Emma Frejinger and Michel Bierlaire},
  title = {Capturing Overlap with Subpaths in Route Choice Models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/DCA05-EMM.pdf}},
  year = {2005},
  note = {Presented at First Workshop on Applications of Discrete Choice Models, Lausanne, Switzerland}}}

2004

Frejinger E., Bierlaire M. Challenges in Route Choice Modeling September 10, 2004. Second Joint Operations Research Days, Coppet, Switzerland.


@Misc{IBM04-EMM,
  author = {Emma Frejinger and Michel Bierlaire},
  title = {Challenges in Route Choice Modeling},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/IBM04-EMM.pdf}},
  year = {2004},
  note = {Presented at Second Joint Operations Research Days, Coppet, Switzerland}}}

Frejinger E., Bierlaire M. Route choice models based on GPS data April 02, 2004. Workshop on Computational Econometrics and Statistics, Neuchâtel, Switzerland.


@Misc{NE04-EMM,
  author = {Emma Frejinger and Michel Bierlaire},
  title = {Route choice models based on GPS data},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/NE04-EMM.pdf}},
  year = {2004},
  note = {Presented at Workshop on Computational Econometrics and Statistics, Neuch\âtel, Switzerland}}}

Awards

2009

Emma Frejinger. 2008 Eric Pas Dissertation Prize, International Association for Travel Behaviour Research.
This prestigious prize recognizes the best doctoral dissertation in the area of travel behavior research.
Emma Frejinger, Michel Bierlaire. Ranked first in the TOP 25 hottest articles of Transportation Research Part B for July-September 2009, Transportation Research Part B: Methodological.
Frejinger, E., Bierlaire, M., and Ben-Akiva, M. (2009). Sampling of Alternatives for Route Choice Modeling, Transportation Research Part B: Methodological 43(10):984-994..
Emma Frejinger, Michel Bierlaire. Ranked 21 in the TOP 25 hottest articles of Transportation Research Part B for April-June 2009, Transportation Research Part B: Methodological.
Frejinger, E., Bierlaire, M., and Ben-Akiva, M. (to appear). Sampling of Alternatives for Route Choice Modeling, Transportation Research Part B: Methodological (accepted for publication on March 03, 2009) .

2008

Emma Frejinger. Dissertation Prize, Transportation Science & Logistics Society, INFORMS.
This is the oldest and most prestigious honor for doctoral dissertations in the transportation science and logistics area..
Michel Bierlaire, Emma Frejinger. Ranked 2 in the TOP 25 hottest articles of Transportation Research Part C for January-March 2008, Transportation Research Part C: Emerging Technologies.
Bierlaire, M., and Frejinger, E. (2008). Route choice modeling with network-free data, Transportation Research Part C: Emerging Technologies 16(2):187-198..

2007

Emma Frejinger. Neil Mansfield Award, Association for European Transport.
Each year, the Association for European Transport makes a number of prestigious awards to recognise the best papers presented at the European Transport Conference. Papers considered for these awards are reviewed by a subject-panel made up of senior academics and professionals from across the transport community. The awards include the Neil Mansfield Award for the Best Paper by a sole author aged 35 or under..
Emma Frejinger, Michel Bierlaire. Ranked 13 in the TOP 25 hottest articles of Transportation Research Part B for July-September 2007, Transportation Research Part B: Methodological.
Frejinger, E., and Bierlaire, M. (2007). Capturing correlation with subnetworks in route choice models, Transportation Research Part B: Methodological 41(3):363-378..

Reviewing

Research projects

2005

Einbezug von Reisekosten bei der Modelliering des Mobilit�tsverhalten

Development of route choice models from RP and SP data
- Nov 01, 2005 - Feb 28, 2007
- Sponsor: Swiss Federal Road Office
- Principal investigator: Michel Bierlaire
- Project manager: Emma Frejinger
- Collaborator: Jelena Stojanovic
Development of route choice models

Design new discrete choice models capturing route choice behavior
- May 01, 2005 - Apr 30, 2008
- Sponsor: Swiss National Science Foundation
- Principal investigator: Michel Bierlaire
- Project manager: Emma Frejinger

2004

Enseignement orient� projet assist� par ordinateur

Develop appropriate case studies for teaching optimization to mechanical engineers
- Apr 01, 2004 - Mar 31, 2006
- Sponsor: Fonds d'innovation de la formation de l'EPFL
- Principal investigator: Michel Bierlaire
- Project manager: Emma Frejinger

Various lectures

2007

Modeling and Simulation Case Studies.
- Modeling and Simulation in Logistics, International Institute for the Management of Logistics, Lausanne, Switzerland
- Apr 30, 2007 - May 04, 2007
- Lecturer: Emma Frejinger
- Assistant: Carolina Osorio Pizano

2006

Mod�lisation du comportement humain: m�thodologie.
- Mod�lisation et simulation en logistique, Institut International de Management pour la Logistique, Paris, France
- Dec 11, 2006 - Dec 15, 2006
- Lecturer: Michel Bierlaire
- Assistants: Emma Frejinger, Carolina Osorio Pizano
Mod�lisation et simulation de gestion de stocks.
- Mod�lisation et simulation en logistique, Institut International de Management pour la Logistique, Paris, France
- Dec 11, 2006 - Dec 15, 2006
- Lecturer: Emma Frejinger
- Assistant: Carolina Osorio Pizano
Mod�lisation du comportement humain: m�thodologie.
- Modeling and Simulation in Logistics, International Institute for the Management of Logistics, Lausanne, Switzerland
- May 01, 2006 - May 05, 2006
- Lecturer: Michel Bierlaire
- Assistants: Carolina Osorio Pizano, Emma Frejinger
Simulation in inventory modeling.
- Modeling and Simulation in Logistics, International Institute for the Management of Logistics, Lausanne, Switzerland
- May 01, 2006 - May 05, 2006
- Lecturer: Emma Frejinger
- Assistant: Carolina Osorio Pizano

2004

Simulation of patient flows.
- Certificat qualit� des soins, H�pitaux Universitaires de Gen�ve, Geneva, Switzerland
- Dec 02, 2004 - Dec 02, 2004
- Lecturer: Emma Frejinger

Master theses

2005-2006

Energy management optimization for a solar vehicle, Alexander Scheidegger (Mathematics)
- Supervision: Michaël Thémans, Emma Frejinger
- External expert: Liebling Th. M., EPFL-ROSO

Semester projects

2005-2006

Validation de modèles de choix de route, Anken Nicolas (Mathematics)

Supervision: Emma Frejinger

2005

Analysis of choice sets for route choice models, Fortón Garcia Verònica

Supervision: Emma Frejinger

Analyse de l'approche sous-réseau pour la modélisation de choix de route, Gilliéron Fanny (Mathematics)

Supervision: Emma Frejinger

Deterministic Correction of the Multinomial Logit Model for Route Choice Analysis, Regis Céline (Communication Systems)

Supervision: Emma Frejinger

2004-2005

Utilisation d'un système géographique pour un problème de logistique, Emery Sarah and Roth Isabelle (Mathematics)

Supervision: Emma Frejinger

Route Choice Analysis using GPS Data, Lindbäck Rolf (Communication Systems)

Supervision: Emma Frejinger, Michaël Thémans

Optimisation of the Operating Suit, Pivin Edward (Mathematics)

Supervision: Emma Frejinger

2004

Identification of Coherent Behavior using Linear Programming, Ittig Oliver (Mathematics)

Supervision: Emma Frejinger, Michaël Thémans

Michaël Thémans

Michaël Thémans has been a member of the laboratory from Apr 01, 2004 to Dec 31, 2007

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Michaël Thémans.

Journal articles

2014

Glerum A., Stankovikj L., Thémans M., Bierlaire M. (2014). Forecasting the demand for electric vehicles: accounting for attitudes and perceptions. Transportation Science 48 (4):483-499

In the context of the arrival of electric vehicles on the car market, new mathematical models are needed to understand and predict the impact on the market shares. This research provides a comprehensive methodology to forecast the demand of a technology which is not widespread yet, such as electric cars. It aims at providing contributions regarding three issues related to the prediction of the demand for electric vehicles: survey design, model estimation and forecasting. We develop a stated preferences (SP) survey with personalized choice situations involving standard gasoline/diesel cars and electric cars. We specify a hybrid choice model accounting for attitudes towards leasing contracts or practical aspects of a car in the decision-making process. A forecasting analysis based on the collected SP data and market data is performed to evaluate the future demand for electric cars.
```
@Article{GleStaTheBie_2013,
  author = {Aur\'elie Glerum and Lidija Stankovikj and Micha\"el Th\'emans and Michel Bierlaire},
  title = {Forecasting the demand for electric vehicles: accounting for attitudes and perceptions},
  journal = {Transportation Science},
  year = {2014},
  volume = {48},
  number = {4},
  pages = {483-499},
  DOI = {10.1287/trsc.2013.0487},
  note = {Accepted on May 29, 2013}}}
```

2010

Bierlaire M., Thémans M., Zufferey N. (2010). A heuristic for nonlinear global optimization. INFORMS Journal of Computing 22 (1):59-70

We propose a new heuristic for nonlinear global optimization combining a variable neighborhood search framework with a modified trust-region algorithm as local search. The proposed method presents the capability to prematurely interrupt the local search if the iterates are converging to a local minimum that has already been visited or if they are reaching an area where no significant improvement can be expected. The neighborhoods, as well as the neighbors selection procedure, are exploiting the curvature of the objective function. Numerical tests are performed on a set of unconstrained nonlinear problems from the literature. Results illustrate that the new method significantly outperforms existing heuristics from the literature in terms of success rate, CPU time, and number of function evaluations.
```
@Article{BierThemZuff09,
  author = {Michel Bierlaire and Micha\"el Th\'emans and Nicolas Zufferey},
  title = {A heuristic for nonlinear global optimization},
  journal = {INFORMS Journal of Computing},
  year = {2010},
  volume = {22},
  number = {1},
  pages = {59-70},
  DOI = {10.1287/ijoc.1090.0343},
  note = {Accepted on Feb 23, 2009}}}
```

2009

Bierlaire M., Thémans M. (2009). Dealing with singularities in nonlinear unconstrained optimization. European Journal of Operational Research 196 (1):33-42

We propose a new trust region based optimization algorithm for solving unconstrained nonlinear problems whose second derivatives matrix is singular at a local solution. We give a theoretical characterization of the singularity in this context and we propose an iterative procedure which allows to identify a singularity in the objective function during the course of the optimization algorithm, and artificially adds Curvature to the objective function. Numerical tests are performed on a set of unconstrained nonlinear problems, both singular and non-singular. Results illustrate the significant performance improvement compared to classical trust region and filter algorithms proposed in the literature. The approach is also shown to be competitive with tensor methods in terms of efficiency while reaching a higher level of robustness. (C) 2008 Elsevier B.V. All rights reserved
```
@Article{BierThem08,
  author = {Michel Bierlaire and Micha\"el Th\'emans},
  title = {Dealing with singularities in nonlinear unconstrained optimization},
  journal = {European Journal of Operational Research},
  year = {2009},
  volume = {196},
  number = {1},
  pages = {33-42},
  DOI = {10.1016/j.ejor.2008.02.036},
  note = {Accepted on Feb 24, 2008}}}
```

2007

Bierlaire M., Crittin F., Thémans M. (2007). A multi-iterate method to solve systems of nonlinear equations. European Journal of Operational Research 183 (1):20-41

We propose an extension of secant methods for nonlinear equations using a population of previous iterates. Contrarily to classical secant methods, where exact interpolation is used, we prefer a least squares approach to calibrate the linear model. We propose an explicit control of the numerical stability of the method. We show that our approach can lead to an update formula. In that case, we prove the local convergence of the corresponding undamped quasi-Newton method. Finally, computational comparisons with classical quasi-Newton methods highlight a significant improvement in terms of robustness and number of function evaluations. We also present numerical tests showing the robust behavior of our method in the presence of noise.
```
@Article{BierCritThem06,
  author = {Michel Bierlaire and Frank Crittin and Micha\"el Th\'emans},
  title = {A multi-iterate method to solve systems of nonlinear equations},
  journal = {European Journal of Operational Research},
  year = {2007},
  volume = {183},
  number = {1},
  pages = {20-41},
  DOI = {10.1016/j.ejor.2006.09.080}}}
```

2006

Bierlaire M., Thémans M., Axhausen K. (2006). Analysis of driver's response to real-time information in Switzerland. European Transport 34 :21-41


@Article{BierThemAxha06,
  author = {Michel Bierlaire and Micha\"el Th\'emans and Kay Axhausen},
  title = {Analysis of driver's response to real-time information in Switzerland},
  journal = {European Transport},
  year = {2006},
  volume = {34},
  pages = {21-41}}}

Books

Louvet M., Kaufmann V., Thémans M., Godillon S., Nessi H., Rocci A., Le Bris C., Adoue F. (2013) Les usages de la mobilité: pour une ingénierie des modes de vie. Editions Loco [ISBN 978-2-919507-13-9]


@Book{LIVRE6T,
  author = {Micha\"el Louvet and Vincent Kaufmann and Micha\"el Th\'emans and Sylvanie Godillon and H\'el\`ene {Nessi } and Ana{\"\i}s Rocci and Camille {Le Bris} and Fran\c{c}ois Adoue},
  title = {Les usages de la mobilit\'e: pour une ing\'enierie des modes de vie},
  publisher = {Editions Loco},
  ISBN = {978-2-919507-13-9},
  year = {2013}}}

Technical reports

2013


@TechReport{PedFluxMidTerm,
  author = {Flurin H\"anseler and Nicholas Molyneaux and Micha\"el Th\'emans and Michel Bierlaire},
  title = {Pedestrian strategies within railway stations: Analysis and modeling of pedestrian flows (PedFlux Mid-Term Report)},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2013},
  type = {Technical Report},
  number = {TRANSP-OR 130920},
  address = {Lausanne, Switzerland}}}

2012


@TechReport{LEMAN2030,
  author = {Flurin H\"anseler and Sohrab Sahaleh and Bilal Farooq and Sonia Lavadinho and Micha\"el Th\'emans and Michel Bierlaire},
  title = {Final report on the modeling part of the ''Flux pietons Gare de Lausanne'' project within the framework of ''Leman 2030''},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2012},
  type = {Technical Report},
  number = {TRANSP-OR 120801},
  address = {Lausanne, Switzerland}}}

Glerum A., Stankovikj L., Thémans M., Bierlaire M. (2012). Forecasting the demand for electric vehicles: accounting for attitudes and perceptions. Report TRANSP-OR 120217


@TechReport{GleStaTheBie_2012,
  author = {Aur\'elie Glerum and Lidija Stankovikj and Micha\"el Th\'emans and Michel Bierlaire},
  title = {Forecasting the demand for electric vehicles: accounting for attitudes and perceptions},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2012},
  type = {Technical Report},
  number = {TRANSP-OR 120217},
  address = {Lausanne, Switzerland}}}

2007

Bierlaire M., Thémans M., Zufferey N. (2007). A heuristic for nonlinear global optimization. Report TRANSP-OR 070430


@TechReport{BierThemZuff07-global,
  author = {Michel Bierlaire and Micha\"el Th\'emans and Nicolas Zufferey},
  title = {A heuristic for nonlinear global optimization},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2007},
  type = {Technical Report},
  number = {TRANSP-OR 070430},
  address = {Lausanne, Switzerland}}}

2006

Bierlaire M., Thémans M. (2006). Dealing with singularities in nonlinear unconstrained optimization. Report TRANSP-OR 061207


@TechReport{BierThem06,
  author = {Michel Bierlaire and Micha\"el Th\'emans},
  title = {Dealing with singularities in nonlinear unconstrained optimization},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2006},
  type = {Technical Report},
  number = {TRANSP-OR 061207},
  address = {Lausanne, Switzerland}}}

Bierlaire M., Thémans M., Axhausen K. (2006). Analysis of driver's response to real-time information in Switzerland. Report GR-BIE-REPORT-2006-002


@TechReport{BierThemAxha06,
  author = {Michel Bierlaire and Micha\"el Th\'emans and Kay Axhausen},
  title = {Analysis of driver's response to real-time information in Switzerland},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2006},
  type = {Technical Report},
  number = {GR-BIE-REPORT-2006-002},
  address = {Lausanne, Switzerland}}}

Bierlaire M., Crittin F., Thémans M. (2006). A multi-iterate method to solve systems of nonlinear equations. Report GR-BIE-REPORT-2006-001


@TechReport{BierCritThem06,
  author = {Michel Bierlaire and Frank Crittin and Micha\"el Th\'emans},
  title = {A multi-iterate method to solve systems of nonlinear equations},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2006},
  type = {Technical Report},
  number = {GR-BIE-REPORT-2006-001},
  address = {Lausanne, Switzerland}}}

2004

Bierlaire M., Thémans M., Axhausen K., Widmer P., Buhl T., Assef-Vaziri F. (2004). D�veloppement de mod�les suisses pour la pr�diction de la demande en transport pour des applications en temps r�el. Report OFROU VSS 1135 november 2004


@TechReport{bierthem04Ofrou,
  author = {Michel Bierlaire and Micha\"el Th\'emans and Kay Axhausen and Paul Widmer and Thomas Buhl and Farshid Assef-Vaziri},
  title = {D\'eveloppement de mod\`eles suisses pour la pr\'ediction de la demande en transport pour des applications en temps r\'eel},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2004},
  type = {Technical Report},
  number = {OFROU VSS 1135 november 2004},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2015


@InProceedings{Flurin_STRC_2015,
  author = {Flurin H\"anseler and Michel Bierlaire and Nicholas Molyneaux and Riccardo Scarinci and Micha\"el Th\'emans},
  title = {Modeling pedestrian flows in train stations: The example of Lausanne railway station},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), April 15-17},
  year = {2015},
  address = {Ascona, Switzerland}}}

2013


@InProceedings{ChenAtasRobeBierThemSTRC2013,
  author = {Jingmin Chen and Bilge Atasoy and Tom\'a\v{s} Robenek and Michel Bierlaire and Micha\"el Th\'emans},
  title = {Planning of feeding station installment for electric urban public mass-transportation system},
  booktime = {Proceedings of the 13th Swiss Transportation Research Conference (STRC), 24-26 April},
  year = {2013},
  address = {Ascona, Switzerland}}}


@InProceedings{StaGleTheBie,
  author = {Amanda Stathopoulos and Aur\'elie Glerum and Micha\"el Th\'emans and Michel Bierlaire},
  title = { Dynamic vehicle ownership forecasting: a framework to model inter-temporal renewal decisions},
  booktime = {Proceedings of the Swiss Transportation Research Conference (STRC), April 24-26},
  year = {2013},
  address = {Ascona, Switzerland}}}

2011


@InProceedings{GleTheBie_ICMC2011,
  author = {Aur\'elie Glerum and Micha\"el Th\'emans and Michel Bierlaire},
  title = {Modeling demand for electric vehicles: the effect of car users' attitudes and perceptions},
  booktime = {Proceedings of the Second International Choice Modeling Conference (ICMC), July 4-6},
  year = {2011},
  address = {Leeds, UK}}}


@InProceedings{GleTheBie_STRC2011,
  author = {Aur\'elie Glerum and Micha\"el Th\'emans and Michel Bierlaire},
  title = {Emergence of electric mobility: a nested approach to vehicle choice modeling},
  booktime = {Proceedings of the 11th Swiss Transport Research Conference (STRC), May 11-13},
  year = {2011},
  address = {Ascona, Switzerland}}}

2007

Bierlaire M., Thémans M., Zufferey N. (2007) Nonlinear global optimization relevant to discrete choice models estimation. Proceedings of the 7th Swiss Transport Research Conference (STRC), 12-14 September 2007, Ascona, Switzerland


@InProceedings{BierThemZuff07-STRC,
  author = {Michel Bierlaire and Micha\"el Th\'emans and Nicolas Zufferey},
  title = {Nonlinear global optimization relevant to discrete choice models estimation},
  booktime = {Proceedings of the 7th Swiss Transport Research Conference (STRC), 12-14 September 2007},
  year = {2007},
  address = {Ascona, Switzerland}}}

Bierlaire M., Thémans M., Zufferey N. (2007) A heuristic for nonlinear global optimization relevant to discrete choice models estimation. Proceedings of the of the Sixth Triennial Symposium on Transportation Analysis (TRISTAN) (TRISTAN), June 10-15, Phuket Island, Thailand


@InProceedings{BierThemZuff07a,
  author = {Michel Bierlaire and Micha\"el Th\'emans and Nicolas Zufferey},
  title = {A heuristic for nonlinear global optimization relevant to discrete choice models estimation},
  booktime = {Proceedings of the of the Sixth Triennial Symposium on Transportation Analysis (TRISTAN) (TRISTAN), June 10-15},
  year = {2007},
  address = {Phuket Island, Thailand}}}

2006

Thémans M., Bierlaire M. (2006) Solving singularity issues in the estimation of econometric models. Proceedings of the Swiss Transport Research Conference (STRC), March, 15-17, Ascona, Switzerland


@InProceedings{ThemBier06,
  author = {Micha\"el Th\'emans and Michel Bierlaire},
  title = {Solving singularity issues in the estimation of econometric models},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), March, 15-17},
  year = {2006},
  address = {Ascona, Switzerland}}}

2005

Bierlaire M., Thémans M. (2005) Algorithmic developments for the estimate of advanced discrete choice models. Proceedings of the 5th Swiss Transportation Research Conference (STRC), March 09-13, Ascona, Switzerland


@InProceedings{BierThem05a,
  author = {Michel Bierlaire and Micha\"el Th\'emans},
  title = {Algorithmic developments for the estimate of advanced discrete choice models},
  booktime = {Proceedings of the 5th Swiss Transportation Research Conference (STRC), March 09-13},
  year = {2005},
  address = {Ascona, Switzerland}}}

Bierlaire M., Thémans M. (2005) Development of Swiss models for transportation demand prediction in response to real-time traffic information. Proceedings of the Swiss Transport Research Conference (STRC), March, 09-11, Ascona, Switzerland


@InProceedings{BierThem05b,
  author = {Michel Bierlaire and Micha\"el Th\'emans},
  title = {Development of Swiss models for transportation demand prediction in response to real-time traffic information},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), March, 09-11},
  year = {2005},
  address = {Ascona, Switzerland}}}

Talks

2014

Thémans M. Solving mobility challenges through demand-oriented and user-centric innovation December 05, 2014. Guest speaker, Verbier Investment Forum on Mobility, Verbier, Switzerland.


@Misc{THEMANS-VERBIER2014,
  author = {Micha\"el Th\'emans},
  title = {Solving mobility challenges through demand-oriented and user-centric innovation },
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-VERBIER2014.pdf}},
  year = {2014},
  note = {Presented at Guest speaker, Verbier Investment Forum on Mobility, Verbier, Switzerland}}}

Thémans M. User-centric research for predicting future transportation demand October 08, 2014. (Invited speaker)IATA Airs@t User Forum, Athens, Greece.


@Misc{THEMANS-IATA1,
  author = {Micha\"el Th\'emans},
  title = {User-centric research for predicting future transportation demand},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-IATA1.pdf}},
  year = {2014},
  note = {Presented at IATA Airs@t User Forum, Athens, Greece}}}

Thémans M. Clip-air: a concept for future air transport October 08, 2014. (Invited speaker)IATA Airs@t User Forum, Athens, Greece.


@Misc{THEMANS-IATA2,
  author = {Micha\"el Th\'emans},
  title = {Clip-air: a concept for future air transport},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-IATA2.pdf}},
  year = {2014},
  note = {Presented at IATA Airs@t User Forum, Athens, Greece}}}

Thémans M. Transportation Research at EPFL: From Supply Chain to Intelligent Vehicles March 21, 2014. Nestlé's Logistics Blue Sky Day, Montreux, Switzerland.


@Misc{THEMANS-NESTLE14,
  author = {Micha\"el Th\'emans},
  title = {Transportation Research at EPFL: From Supply Chain to Intelligent Vehicles},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-NESTLE14.pdf}},
  year = {2014},
  note = {Presented at Nestl\é's Logistics Blue Sky Day, Montreux, Switzerland}}}

Thémans M. Transportation Center: Research related to traffic management and public transport operations January 28, 2014. Green Day of the Transportation Department of State of Geneva, Coppet, Switzerland .


@Misc{THEMANS-DGT,
  author = {Micha\"el Th\'emans},
  title = {Transportation Center: Research related to traffic   management and public transport operations },
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-DGT.pdf}},
  year = {2014},
  note = {Presented at Green Day of the Transportation Department of State of Geneva, Coppet, Switzerland }}}

2013

Thémans M. EPFL's Transportation Research: Strategy & Selected Projects October 08, 2013. Eurotech Workshop on Transportation, Brussels, Belgium .


@Misc{THEMANS-EUROTECH,
  author = {Micha\"el Th\'emans},
  title = {EPFL's Transportation Research: Strategy \& Selected Projects},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-EUROTECH.pdf}},
  year = {2013},
  note = {Presented at Eurotech Workshop on Transportation, Brussels, Belgium }}}

Thémans M. EPFL: Aper�u des activit�s en transport routier durable August 23, 2013. Congrès annuel de l'association e'mobile, EPFL, Lausanne, Switzerland.


@Misc{THEMANS-EMOBILE,
  author = {Micha\"el Th\'emans},
  title = {EPFL: Aper\c{c}u des activit\'es en transport routier durable},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-EMOBILE.pdf}},
  year = {2013},
  note = {Presented at Congr\ès annuel de l'association e'mobile, EPFL, Lausanne, Switzerland}}}

Thémans M. From Information & Communication Technologies to Cooperative Intelligent Transportation Systems June 27, 2013. Seminar at Federal Office of Communication , Invited speaker, Bienne, Switzerland.


@Misc{THEMANS-OFCOM,
  author = {Micha\"el Th\'emans},
  title = {From Information \& Communication Technologies to Cooperative Intelligent Transportation Systems},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-OFCOM.pdf}},
  year = {2013},
  note = {Presented at Seminar at Federal Office of Communication , Invited speaker, Bienne, Switzerland}}}

Thémans M. Electric mobility: The social acceptance of electric vehicles on Swiss market June 25, 2013. Workshop de la Chaire Armand Peugeot, Ecole Centrale Paris, Paris, France.


@Misc{THEMANS-PSA_WS,
  author = {Micha\"el Th\'emans},
  title = {Electric mobility: The social acceptance of electric vehicles on Swiss market},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-PSA_WS.pdf}},
  year = {2013},
  note = {Presented at Workshop de la Chaire Armand Peugeot, Ecole Centrale Paris, Paris, France}}}

2012

Thémans M. Transport durable: De la sociologie aux technologies en passant par la logistique November 29, 2012. Séminaire TraCE-Alliance "De l'intelligence dans vos déplacements", EPFL, Lausanne, Switzerland.


@Misc{THEMANS-ALLIANCE,
  author = {Micha\"el Th\'emans},
  title = {Transport durable: De la sociologie aux technologies en passant par la logistique},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-ALLIANCE.pdf}},
  year = {2012},
  note = {Presented at S\éminaire TraCE-Alliance \"De l'intelligence dans vos d\éplacements\", EPFL, Lausanne, Switzerland}}}

Thémans M. The innovation Cell of PSA - Peugeot-Citro�n on EPFL's campus November 15, 2012. Seminar StelLab, PSA-Peugeot-Citroën, , Paris, France.


@Misc{THEMANS-PSA,
  author = {Micha\"el Th\'emans},
  title = {The innovation Cell of PSA - Peugeot-Citro\"en on EPFL's   campus},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-PSA.pdf}},
  year = {2012},
  note = {Presented at Seminar StelLab, PSA-Peugeot-Citro\ën, , Paris, France}}}

Thémans M. From Technology... to Sociology in Transportation November 01, 2012. Annual Conference of the Cosmobilities Network on Governing Mobility, Lausanne (EPFL), Switzerland.


@Misc{THEMANS-LASUR,
  author = {Micha\"el Th\'emans},
  title = {From Technology... to Sociology in Transportation },
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-LASUR.pdf}},
  year = {2012},
  note = {Presented at Annual Conference  of the Cosmobilities Network on Governing Mobility, Lausanne (EPFL), Switzerland}}}

Thémans M. Some challenges in electric mobility July 12, 2012. Research Seminar at SGS Headquarters, Geneva, Switzerland.


@Misc{THEMANS-SGS,
  author = {Micha\"el Th\'emans},
  title = {Some challenges in electric mobility},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-SGS.pdf}},
  year = {2012},
  note = {Presented at Research Seminar at SGS Headquarters, Geneva, Switzerland}}}

Thémans M., Leonardi C., Bierlaire M. CLIP-AIR: A new concept for multimodal transport based on a modular aircraft June 26, 2012. Orchestrating Winning Performance 2012, IMD Business School, Lausanne, Switzerland.


@Misc{THEMANS-IMD-2012,
  author = {Micha\"el Th\'emans and Claudio Leonardi and Michel Bierlaire},
  title = {CLIP-AIR: A new concept for multimodal transport based on a modular aircraft},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-IMD-2012.pdf}},
  year = {2012},
  note = {Presented at Orchestrating Winning Performance 2012, IMD Business School, Lausanne, Switzerland}}}

Thémans M. Electric Mobility: Some Challenges and Its Acceptation in Switzerland June 12, 2012. Research Seminar at the Nestlé Research Center, Lausanne, Switzerland.


@Misc{THEMANS-NESTLE12,
  author = {Micha\"el Th\'emans},
  title = {Electric Mobility: Some Challenges and Its Acceptation in Switzerland},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-NESTLE12.pdf}},
  year = {2012},
  note = {Presented at Research Seminar at the Nestl\é Research Center, Lausanne, Switzerland}}}

Thémans M. Analyse, mod�lisation et pr�diction de la demande de v�hicules �lectriques sur le march� automobile suisse February 08, 2012. (Keynote speech)3ème Congrès Suisse sur la Mobilité Electrique, Luzern, Switzerland.


@Misc{THEMANS-LUZERN,
  author = {Micha\"el Th\'emans},
  title = {Analyse, mod\'elisation et pr\'ediction de la demande de v\'ehicules \'electriques sur le march\'e automobile suisse},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-LUZERN.pdf}},
  year = {2012},
  note = {Presented at 3\ème Congr\ès Suisse sur la Mobilit\é Electrique, Luzern, Switzerland}}}

2011

Thémans M. Quelle mobilit� pour demain? Quelques solutions innovantes et durables October 05, 2011. Journée de l'Energie (Valais), Martigny (VS), Switzerland.


@Misc{THEMANS-FOIREVS,
  author = {Micha\"el Th\'emans},
  title = {Quelle mobilit\'e pour demain? Quelques solutions innovantes et durables},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-FOIREVS.pdf}},
  year = {2011},
  note = {Presented at Journ\ée de l'Energie (Valais), Martigny (VS), Switzerland}}}

Thémans M. Transportation Center @ EPFL: Overview of research activities and projects September 27, 2011. Research seminar, XEROX Research Centre Europe, Grenoble (France) .


@Misc{THEMANS-XEROX,
  author = {Micha\"el Th\'emans},
  title = {Transportation Center @ EPFL: Overview of research activities and projects},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-XEROX.pdf}},
  year = {2011},
  note = {Presented at Research seminar, XEROX Research Centre Europe, Grenoble (France) }}}

Thémans M. Analyse de la demande et des comportements de mobilit� September 14, 2011. Colloque sur la mobilité durable «Nouveaux comportements dans le domaine de la mobilité: enjeux et perspectives», Pôle de compétence mobil-IT (Jura), Delémont (JU, Switzerland).


@Misc{THEMANS-MOBILIT,
  author = {Micha\"el Th\'emans},
  title = { Analyse de la demande et des comportements de mobilit\'e },
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-MOBILIT.pdf}},
  year = {2011},
  note = {Presented at Colloque sur la mobilit\é durable \«Nouveaux comportements dans le   domaine de la mobilit\é: enjeux et perspectives\», P\ôle de comp\étence mobil-IT (Jura), Del\émont (JU, Switzerland)}}}

Thémans M. Research on vehicles for ground transportation at EPFL June 20, 2011. Event for the launch of Commercial Vehicles Middle East, Chartered Institute of Logistics, Emirates Aviation College, Dubai, UAE.


@Misc{THEMANS-CILT,
  author = {Micha\"el Th\'emans},
  title = {Research on vehicles for ground transportation at EPFL},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-CILT.pdf}},
  year = {2011},
  note = {Presented at Event for the launch of Commercial Vehicles Middle East, Chartered Institute of Logistics, Emirates Aviation College, Dubai, UAE}}}

Thémans M. TraCE: From society needs to cutting-edge research June 17, 2011. TraCE Research Day 2011, EPFL, Lausanne, Switzerland.


@Misc{THEMANS-TRD2011,
  author = {Micha\"el Th\'emans},
  title = {TraCE: From society needs to cutting-edge research},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-TRD2011.pdf}},
  year = {2011},
  note = {Presented at TraCE Research Day 2011, EPFL, Lausanne, Switzerland}}}

Thémans M. Le transport de marchandises en ville: Vers une optimisation op�rationnelle et une meilleure coordination? March 23, 2011. Association Transports et Environnement, Assemblée Générale 2011, Geneva, Switzerland.


@Misc{THE-ATE,
  author = {Micha\"el Th\'emans},
  title = {Le transport de marchandises en ville: Vers une optimisation op\'erationnelle et une meilleure coordination?},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THE-ATE.pdf}},
  year = {2011},
  note = {Presented at Association Transports et Environnement, Assembl\ée G\én\érale 2011, Geneva, Switzerland}}}

2010

Thémans M. Simulation and optimization of urban transport systems December 16, 2010. Réunion "Plan Climat 2010" du Conseil Général des Alpes Maritimes, Nice, France.


@Misc{THEMANS-CG06,
  author = {Micha\"el Th\'emans},
  title = {Simulation and optimization of urban transport systems},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-CG06.pdf}},
  year = {2010},
  note = {Presented at R\éunion \"Plan Climat 2010\" du Conseil G\én\éral des Alpes Maritimes, Nice, France}}}

Thémans M. EPFL's Transportation Center: Research related to rail industry November 24, 2010. Swissrail Board Meeting 2010, Bussnang, Switzerland.


@Misc{THEMANS-SWISSRAIL,
  author = {Micha\"el Th\'emans},
  title = {EPFL's Transportation Center: Research related to rail industry},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-SWISSRAIL.pdf}},
  year = {2010},
  note = {Presented at Swissrail Board Meeting 2010, Bussnang, Switzerland}}}

Thémans M. TraCE: Le centre de transport � l'EPFL November 02, 2010. Visite des Administrations Latines, Voyage vers les futurs possibles, EPFL, Switzerland.


@Misc{THEMANS-ADMIN,
  author = {Micha\"el Th\'emans},
  title = {TraCE: Le centre de transport \`a l'EPFL},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-ADMIN.pdf}},
  year = {2010},
  note = {Presented at Visite des Administrations Latines, Voyage vers les futurs possibles, EPFL, Switzerland}}}

Thémans M. EPFL's Transportation Center: Mobility of the future October 28, 2010. 2ème séminaire de recherche Franco-Suisse, Pôle Véhicule du Futur, Strasbourg, France.


@Misc{THEMANS-PVF,
  author = {Micha\"el Th\'emans},
  title = {EPFL's Transportation Center: Mobility of the future},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-PVF.pdf}},
  year = {2010},
  note = {Presented at 2\ème s\éminaire de recherche Franco-Suisse, P\ôle V\éhicule du Futur, Strasbourg, France}}}

Thémans M. TraCE: Le centre de transport � l'EPFL October 22, 2010. Visite des Maires Francophones à l'EPFL, 13ème sommet de la Francophonie, EPFL, Switzerland.


@Misc{THEMANS-FRANCOPHONIE,
  author = {Micha\"el Th\'emans},
  title = {TraCE: Le centre de transport \`a l'EPFL},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-FRANCOPHONIE.pdf}},
  year = {2010},
  note = {Presented at Visite des Maires Francophones \à l'EPFL, 13\ème sommet de la Francophonie, EPFL, Switzerland}}}

Thémans M. EPFL's Transportation Center: Some on-going projects June 16, 2010. A3-Event on Mobility, EPFL, Switzerland.


@Misc{THEMANS-A3,
  author = {Micha\"el Th\'emans},
  title = {EPFL's Transportation Center: Some on-going projects},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-A3.pdf}},
  year = {2010},
  note = {Presented at A3-Event on Mobility, EPFL, Switzerland}}}

Thémans M. EPFL's Transportation Center: Sustainable Mobility June 01, 2010. Clean Technology European Partnering Event, 1-2 June 2010, Geneva, Switzerland.


@Misc{THEMANS-CLEANTECH,
  author = {Micha\"el Th\'emans},
  title = {EPFL's Transportation Center: Sustainable Mobility},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-CLEANTECH.pdf}},
  year = {2010},
  note = {Presented at Clean Technology European Partnering Event, 1-2 June 2010, Geneva, Switzerland}}}

Thémans M. EPFL's Transportation Center: Smart mobility March 18, 2010. Seminar at IBM Zürich Research Center, Zürich, Switzerland.


@Misc{THEMANS-IBM,
  author = {Micha\"el Th\'emans},
  title = {EPFL's Transportation Center: Smart mobility},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-IBM.pdf}},
  year = {2010},
  note = {Presented at Seminar at IBM Z\ürich Research Center, Z\ürich, Switzerland}}}

Thémans M. Overview of transportation research at EPFL March 15, 2010. PREDIT seminar, French Ministry of Ecology, Sustainable Development and Transport, Paris, France.


@Misc{THEMANS-PREDIT,
  author = {Micha\"el Th\'emans},
  title = {Overview of transportation research at EPFL},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-PREDIT.pdf}},
  year = {2010},
  note = {Presented at PREDIT seminar, French Ministry of Ecology, Sustainable Development and Transport, Paris, France}}}

2009

Thémans M. Adjusted Mixture Designs illustrated with examples from food industry July 07, 2009. EPFL Civil Engineering Seminar Series, EPFL, Switzerland.


@Misc{THEMANS-DOE,
  author = {Micha\"el Th\'emans},
  title = {Adjusted Mixture Designs illustrated with examples from food industry},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-DOE.pdf}},
  year = {2009},
  note = {Presented at EPFL Civil Engineering Seminar Series, EPFL, Switzerland}}}

2007

Thémans M. Development and estimation of advanced Discrete Choice Models November 15, 2007. Seminar at Philipp Morris Research Center, Neuchâtel, Switzerland.


@Misc{THEMANS-PMI,
  author = {Micha\"el Th\'emans},
  title = {Development and estimation of advanced Discrete Choice Models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-PMI.pdf}},
  year = {2007},
  note = {Presented at Seminar at Philipp Morris Research Center, Neuch\âtel, Switzerland}}}

Thémans M. Development and estimation of advanced Discrete Choice Models October 24, 2007. Seminar at Nestlé Research Center, Vers-chez-les-Blanc, Switzerland.


@Misc{THEMANS-NRC,
  author = {Micha\"el Th\'emans},
  title = {Development and estimation of advanced Discrete Choice Models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-NRC.pdf}},
  year = {2007},
  note = {Presented at Seminar at Nestl\é Research Center, Vers-chez-les-Blanc, Switzerland}}}

Thémans M., Zufferey N., Bierlaire M. A heuristic for nonlinear global optimization relevant to discrete choice model estimation September 12, 2007. Swiss Transport Research Conference, Ascona, Switzerland.


@Misc{STRC07-THEMANS,
  author = {Micha\"el Th\'emans and Nicolas Zufferey and Michel Bierlaire},
  title = {A heuristic for nonlinear global optimization relevant to discrete choice model estimation},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/STRC07-THEMANS.pdf}},
  year = {2007},
  note = {Presented at Swiss Transport Research Conference, Ascona, Switzerland}}}

Thémans M. Numerical Methods and Models Relevant to Transportation Applications August 24, 2007. PhD public defence, EPFL, Lausanne.


@Misc{THEMANS-PHD,
  author = {Micha\"el Th\'emans},
  title = {Numerical Methods and Models Relevant to Transportation Applications},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-PHD.pdf}},
  year = {2007},
  note = {Presented at PhD public defence, EPFL, Lausanne}}}

Thémans M., Bierlaire M. A heuristic for nonlinear global optimization relevant to discrete choice models estimation June 12, 2007. TRISTAN VI, Phuket Island, Thailand.


@Misc{TRISTAN-MT,
  author = {Micha\"el Th\'emans and Michel Bierlaire},
  title = {A heuristic for nonlinear global optimization relevant to discrete choice models estimation},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/TRISTAN-MT.pdf}},
  year = {2007},
  note = {Presented at TRISTAN VI, Phuket Island, Thailand}}}

Thémans M., Bierlaire M. Optimisation non-lin�aire globale avec applications aux mod�les de choix discret February 21, 2007. FRANCORO V / ROADEF 2007, Grenoble, France.


@Misc{ROADEF07,
  author = {Micha\"el Th\'emans and Michel Bierlaire},
  title = {Optimisation non-lin\'eaire globale avec applications aux mod\`eles de choix discret},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/ROADEF07.pdf}},
  year = {2007},
  note = {Presented at FRANCORO V / ROADEF 2007, Grenoble, France}}}

2006

Thémans M., Bierlaire M. Solving singularity issues in the estimation of econometric models September 18, 2006. European Transport Conference (ETC), Strasbourg, France.


@Misc{ETC06-THEMANS,
  author = {Micha\"el Th\'emans and Michel Bierlaire},
  title = {Solving singularity issues in the estimation of econometric models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/ETC06-THEMANS.pdf}},
  year = {2006},
  note = {Presented at European Transport Conference (ETC), Strasbourg, France}}}

Thémans M., Bierlaire M. Solving singularity issues in the estimation of econometric models March 15, 2006. Swiss Transportation Research Conference, Ascona, Switzerland.


@Misc{STRC06-MIC,
  author = {Micha\"el Th\'emans and Michel Bierlaire},
  title = {Solving singularity issues in the estimation of econometric models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/STRC06-MIC.pdf}},
  year = {2006},
  note = {Presented at Swiss Transportation Research Conference, Ascona, Switzerland}}}

Thémans M. M�thodes de r�gion de confiance pour l'optimisation singuli�re sans contrainte February 06, 2006. ROADEF 2006, Société française de Recherche Opérationnelle et d'Aide à la Décision 6, Lille, France.


@Misc{ROADEF06,
  author = {Micha\"el Th\'emans},
  title = {M\'ethodes de r\'egion de confiance pour l'optimisation singuli\`ere sans contrainte},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/ROADEF06.pdf}},
  year = {2006},
  note = {Presented at ROADEF 2006, Soci\ét\é fran\çaise de Recherche Op\érationnelle et d'Aide \à la D\écision 6, Lille, France}}}

2005

Thémans M. Trust-region based algorithms for singular nonlinear optimization with applications to discrete choice models September 15, 2005. 3rd Joint Oerations Research Days, IBM, Rüschlikon, Switzerland.


@Misc{IBM05MIC,
  author = {Micha\"el Th\'emans},
  title = {Trust-region based algorithms for singular nonlinear optimization with applications to discrete choice models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/IBM05MIC.pdf}},
  year = {2005},
  note = {Presented at 3rd Joint Oerations Research Days, IBM, R\üschlikon, Switzerland}}}

Thémans M. Trust-region based algorithms for singular nonlinear optimization with applications to discrete choice models May 01, 2005. Presentation for EPFL doctoral school in mathematics, EPFL, Switzerland.


@Misc{THEMANS-DOCTORAL,
  author = {Micha\"el Th\'emans},
  title = {Trust-region based algorithms for singular nonlinear optimization with applications to discrete choice models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-DOCTORAL.pdf}},
  year = {2005},
  note = {Presented at Presentation for EPFL doctoral school in mathematics, EPFL, Switzerland}}}

Thémans M. Algorithmic developments for the estimation of advanced discrete choice models March 09, 2005. 5th Swiss Transportation Research Conference, EPFL CAST - GR-BIE, Ascona, Switzerland.


@Misc{STRC05MIC,
  author = {Micha\"el Th\'emans},
  title = {Algorithmic developments for the estimation of advanced discrete choice models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/STRC05MIC.pdf}},
  year = {2005},
  note = {Presented at 5th Swiss Transportation Research Conference, EPFL CAST - GR-BIE, Ascona, Switzerland}}}

Thémans M. Development of Swiss models for transportation demand presiction in response to real-time traffic information March 09, 2005. 5th Swiss Transportation Research Conference, EPFL - CAST - GR-BIE, Ascona, Switzerland.


@Misc{STRC05SWMO,
  author = {Micha\"el Th\'emans},
  title = {Development of Swiss models for transportation demand presiction in response to real-time traffic information},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/STRC05SWMO.pdf}},
  year = {2005},
  note = {Presented at 5th Swiss Transportation Research Conference, EPFL - CAST - GR-BIE, Ascona, Switzerland}}}

Thémans M. On the Globalization of a Generalized Secant Method for solving Nonlinear Systems of Equations February 28, 2005. 3ème cycle romand de Recherche Opérationnelle, EPFL, Zinal, Switzerland.


@Misc{CYRO05MIC,
  author = {Micha\"el Th\'emans},
  title = {On the Globalization of a Generalized Secant Method for solving Nonlinear Systems of Equations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/CYRO05MIC.pdf}},
  year = {2005},
  note = {Presented at 3\ème cycle romand de Recherche Op\érationnelle, EPFL, Zinal, Switzerland}}}

2004

Thémans M. Modeling response to traffic information in Switzerland October 04, 2004. European Transport Conference, Sttrasbourg, France.


@Misc{ETC04MIC,
  author = {Micha\"el Th\'emans},
  title = {Modeling response to traffic information in Switzerland},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/ETC04MIC.pdf}},
  year = {2004},
  note = {Presented at European Transport Conference, Sttrasbourg, France}}}

Thémans M., Bierlaire M. Algorithmic developments for the estimation of advanced discrete choice models April 02, 2004. Workshop on Computational Econometrics and Statistics, Neuchâtel, Switzerland.


@Misc{NE04-MIC,
  author = {Micha\"el Th\'emans and Michel Bierlaire},
  title = {Algorithmic developments for the estimation of advanced discrete choice models},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/NE04-MIC.pdf}},
  year = {2004},
  note = {Presented at Workshop on Computational Econometrics and Statistics, Neuch\âtel, Switzerland}}}

2002

Thémans M. Mod�lisation et simulation du flux d'une ligne d'embouteillage August 10, 2002. Internal seminar , EPFL, Switzerland.


@Misc{THEMANS-INTERVIEW,
  author = {Micha\"el Th\'emans},
  title = { Mod\'elisation et simulation du flux d'une ligne d'embouteillage},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/THEMANS-INTERVIEW.pdf}},
  year = {2002},
  note = {Presented at Internal seminar , EPFL, Switzerland}}}

Reviewing

Research projects

2012

Pedflux: Pedestrian flow modeling in train stations

The aim of this collaborative research project between the Swiss Federal Railways (SBB-CFF-FFS) and EPFL's transportation center is to analyze, model and optimize pedestrian flows in train stations. In recent years, the growing number of passengers has led to difficulties related to pedestrian flows in major train stations. Congestion of pedestrian walkways is increasingly becoming a problem during peak hours, but also due to clustering of people caused by major events or the beginning or end of holiday season. When capacity limits for pedestrian facilities are reached, normal operation of train schedules can be significantly impaired. Since train stations are important nodes within the multimodal public transportation system, it is of major importance that they are operated as efficiently as possible. In addition to the increase in passenger numbers, train stations have been undergoing a profound transformation from simple transit nodes towards versatile hubs that provide interface to short and long-distance train connections, to other modes including private transport by foot, bike and car, as well as to the city offering public space for shopping, eating and alike. This transformation leads to a further increase in pedestrian numbers and additionally introduces new behavior patterns. A sound understanding of pedestrian flows within a train station can help improve overall level of service, customer experience and safety. The main focus of this study lies on the development of a methodology allowing to estimate pedestrian origin-destination (OD) demand within a train station. Specifically, train time table, customer survey data and flow observations from an exhaustive camera system are used as sources of information in this process. Subsequently, the modeling frame work is applied to several case studies in Switzerland.
- Apr 01, 2012 - Mar 31, 2015
- Sponsor: Swiss Federal Railways (SBB)
- Principal investigator: Michel Bierlaire
- Project managers: Micha�l Th�mans, Riccardo Scarinci
- Collaborator: Flurin H�nseler

2011

L�man 2030: Flux pi�tons Gare de Lausanne

In the framework of a 9-month collaboration with CFF, pedestrian flows in Lausanne train station are estimated and modeled. Specifically, an estimation methodology for pedestrian origin-destination demand is developed and applied to predict a demand scenario for 2030. By means of a pedestrian flow simulator, several infrastructure scenarios are quantitatively evaluated, the result of which helps CFF to design and dimension pedestrian underpasses of Gare de Lausanne for the future.
- Oct 01, 2011 - Jul 15, 2012
- Sponsor: Swiss Federal Railways (SBB)
- Principal investigator: Michel Bierlaire
- Project managers: Micha�l Th�mans, Bilal Farooq
- Collaborators: Flurin H�nseler, Antonin Danalet, Sohrab Sahaleh

2010

Demande de consommateurs pour des v�hicules �lectriques

Evaluation de la demande des consommateurs pour des v�hicules �lectriques en vue du lancement d'une telle gamme par Renault
- Aug 01, 2010 - Apr 30, 2011
- Sponsor: Renault Suisse SA
- Principal investigator: Michel Bierlaire
- Project manager: Micha�l Th�mans
- Collaborator: Aur�lie Glerum

2004

Optimization methods for advanced discrete choice models

Development of optimization algorithms designed for the maximum likelihood estimation of advanced discrete choice models where the objective function is singular, and non-trivial constraints are imposed on the parameters
- Apr 01, 2004 - Mar 31, 2007
- Sponsor: Swiss National Science Foundation
- Principal investigator: Michel Bierlaire
- Project manager: Micha�l Th�mans

2003

D�veloppement de mod�les suisses de pr�diction de la demande en transport pour des applications en temps r�el (Development of Swiss models for transportation demand prediction in the context of traffic management systems)

Development of operational disaggregate demand models for efficient dynamic traffic managment systems
- Jan 01, 2003 - Dec 31, 2004
- Sponsor: VSS - Association of Swiss Road and Traffic Engineers
- Principal investigator: Michel Bierlaire
- Project manager: Michel Bierlaire
- Collaborator: Micha�l Th�mans

EPFL courses

Fall 2010

Introduction � l'optimisation diff�rentiable.
- Level: Bachelor
- Sections: Mechanical Engineering, Electrical and Electronics Engineering, Chemistry and Chemical Engineering, Computer science
- Lecturer: Micha�l Th�mans
- Teaching assistants: Bilge Atasoy, Ricardo Hurtubia

Fall 2009

Introduction � l'optimisation diff�rentiable.
- Level: Bachelor
- Sections: Mechanical Engineering, Electrical and Electronics Engineering, Chemistry and Chemical Engineering, Computer science
- Lecturer: Micha�l Th�mans
- Teaching assistant: Ilaria Vacca
- Webpage:

Fall 2008

Introduction � l'optimisation diff�rentiable.
- Level: Bachelor
- Sections: Mechanical Engineering, Electrical and Electronics Engineering, Chemistry and Chemical Engineering, Computer science
- Lecturer: Micha�l Th�mans
- Teaching assistant: Ilaria Vacca
- Webpage:

Fall 2007

Optimisation 1.
- Level: Bachelor
- Sections: Mechanical Engineering, Communication Systems, Electrical and Electronics Engineering
- Lecturer: Micha�l Th�mans
- Teaching assistants: Niklaus Eggenberg, Ilaria Vacca

Various lectures

2005

Trust-region based algorithms for singular nonlinear optimization with applications to discrete choice models.
- , EPFL, Lausanne, Switzerland
- May 12, 2005
- Lecturer: Micha�l Th�mans

2002

Mod�lisation et simulation du flux d'une ligne d'embouteillage.
- , EPFL
- Aug 15, 2002
- Lecturer: Micha�l Th�mans

Master theses

2010-2011

The modeling of the investors behavior, Sabine Luisier (Mathematics)
- Supervision: Michel Bierlaire, Thomas Robin, Michaël Thémans
- External expert: Dr. Frank Crittin, LODH

2009

An Empirical Investigation of the Determinants of Attention to Attributes in Choice Experiments, Antonin Danalet (Mathematics)
- Supervision: Michel Bierlaire, Michaël Thémans, Thomas Robin
- External expert: Prof. Ricardo Scarpa

2006

Développement d'une étude de cas pour l'analyse des comportements par modèles de choix discrets, Gianni Farini (Mathematics)
- Supervision: Michel Bierlaire, Michaël Thémans
- External expert: Teghem J., Polytech. Mons, Belgique

2005-2006

Degenerate nonlinear constrained programming, Lionel Dumartheray (Mathematics)
- Supervision: Michel Bierlaire, Michaël Thémans
- External expert: Prof. Th. Liebling (EPFL - IMA - ROSO)
Energy management optimization for a solar vehicle, Alexander Scheidegger (Mathematics)
- Supervision: Michaël Thémans, Emma Frejinger
- External expert: Liebling Th. M., EPFL-ROSO

2004-2005

Utilisation des modèles d'utilité pour évaluer la valeur du temps, Frédéric Mivelaz (Mathematics)
- Supervision: Michel Bierlaire, Michaël Thémans
- External expert: Rico Maggi, Uni. Lugano

Semester projects

2009

Analysis of consumer behaviour in terms of product preference/choice., Aurélie Glerum (Mathematics)

Supervision: Thomas Robin, Michaël Thémans
This project will be conducted in collaboration with the Nestl� Research Center. Quantitative studies are frequently used in the food industry in order to determine whether a product is superior to its competitor(s). Many types of studies exist, but this project focuses on a specific type of study involving only two products and in which consumers are asked to evaluate both products with regard to different criteria (such as flavour, appearance, texture, etc.) and to choose the product they prefer. Socio-demographic characteristics as well as information on consumption habits are also collected during the test. The aim of this project is to explore a database containing about 100 studies that have been conducted over the past years on a same product category in different countries. Such studies are usually analyzed by the means of descriptive statistics in order to answer the two following questions: -Which product do consumers prefer? -Why do consumers prefer this product? In this project, we propose to analyze the studies by making use of discrete choice modelling. This technique allows understanding and modelling the behaviour of consumers in a quantitative way when they are exposed to such choice situations, i.e. the choice between two products. Discrete choice models should allow identifying and quantifying the effect of both product attributes and consumer characteristics on the preference.

2008-2009

Est-il possible de réduire le nombre de panélistes dans une étude DTS (Dominance Temporelle des Sensations) sans altérer la qualité des résultats?, Glerum Aurélie (Mathematics)

Supervision: Thomas Robin, Michaël Thémans
La m�thode de la Dominance Temporelle des Sensations (DTS) permet de suivre l��volution des perceptions sensorielles en bouche au cours de la mastication d�un produit alimentaire. Elle consiste simplement � demander au pan�liste de s�lectionner la caract�ristique dominante du produit au cours de la mastication. Par exemple, si le produit est une barre de c�r�ales, le pan�liste doit indiquer au cours de la mastication d�une bouch�e si le produit est plut�t croquant, friable, collant ou p�teux. Cette caract�ristique dominante peut changer au cours du temps. Sur l�ensemble du panel, cette m�thode permet de dessiner les courbes d��volution de chaque descripteur sensoriel au cours du temps. Cette m�thode est relativement r�cente et les premi�res �tudes ont �t� r�alis�es avec un nombre de pan�listes tr�s important (environ 50 �valuations de chaque produit). L�objectif de ce projet est de tester si cette m�thode donne des r�sultats aussi satisfaisants avec un nombre de pan�listes r�duit. Le travail consistera donc � : se familiariser avec la m�thode DTS et la construction des courbes, d�velopper un programme permettant de construire ces courbes pour un sous-ensemble de pan�listes, g�n�rer les r�sultats pour plusieurs tailles de panel en utilisant les donn�es de plusieurs �tudes DTS existantes au centre de recherche Nestl�, proposer une m�thode pour comparer les r�sultats des panels de taille r�duite avec le panel complet, appliquer cette m�thode et analyser les r�sultats, r�diger un rapport pr�sentant la d�marche et mettant en avant les principales conclusions.

Is it possible to reduce the number of panelists in a TDS (Temporal Dominance of Sensations) study without altering the quality of the results?, Aurélie Glérum (Mathematics)

Supervision: Thomas Robin, Michel Bierlaire, Michaël Thémans

nan-2006

Detection of behavioral inconsistency in Revealed Preferences surveys , Laurence de Torrenté and Ariane Wenger (Mathematics)

Supervision: Michaël Thémans, Michel Bierlaire

nan-2005

Detection of behavioral inconsistency in Revealed Preferences surveys , Julie Marc (Mathematics)

Supervision: Michaël Thémans, Michel Bierlaire

Discrete choice models: development of case studies, Frédéric Anken (Mathematics)

Supervision: Michaël Thémans, Michel Bierlaire

Different strategies for trust-region size management, Emmanuel Leclercq (Mathematics)

Supervision: Michaël Thémans, Michel Bierlaire

Stated Preferences Survey for the choice of exchange university, Eric Von Aarburg (Mathematics)

Supervision: Michaël Thémans, Michel Bierlaire

2004-2005

Route Choice Analysis using GPS Data, Lindbäck Rolf (Communication Systems)

Supervision: Emma Frejinger, Michaël Thémans

nan-2004

Calibration of models for transportation demand in the context of real-time applications, Mohamed Rhmari Tlemçani (Communication Systems)

Supervision: Michaël Thémans, Michel Bierlaire

Adaptation of GSM for unconstrained nonlinear optimization, Anouck Brossard and Sarah Degallier (Mathematics)

Supervision: Michaël Thémans, Frank Crittin, Michel Bierlaire

On the convergence of multi-dimensional filter methods, Lionel Dumartheray (Mathematics)

Supervision: Michaël Thémans, Michel Bierlaire

2004

Identification of Coherent Behavior using Linear Programming, Ittig Oliver (Mathematics)

Supervision: Emma Frejinger, Michaël Thémans

nan-2004

Dynamic O-D matrices estimation with iGSM, Olivier Grandjean (Mathematics)

Supervision: Frank Crittin, Michaël Thémans, Michel Bierlaire

nan-2003

Testing GSM on unconstrained nonlinear optimization problems, Mina Adel Latif (Communication Systems)

Supervision: Michaël Thémans, Frank Crittin, Michel Bierlaire

Discrete choice models to capture drivers behavior in response to real-time traffic information, Thomas Quentin Maillard (Mathematics)

Supervision: Michaël Thémans, Michel Bierlaire

Empirical analysis of the correlation in discrete choice models, Steve Salom (Communication Systems)

Supervision: Michaël Thémans, Michel Bierlaire

Personal webpage

Rodrigue Oeuvray

Rodrigue Oeuvray has been a member of the laboratory from Mar 01, 2001 to Apr 30, 2005

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Rodrigue Oeuvray.

Journal articles

2009

Oeuvray R., Bierlaire M. (2009). BOOSTERS: a derivative-free algorithm based on radial basis functions. International Journal of Modelling and Simulation 29 (1):26-36

Derivative-free optimization involves the methods used to minimize an expensive objective functionwhen its derivatives are not available. We present here a trust-region algorithmbased on Radial Basis Functions (RBFs). The main originality of our approach is the use of RBFs to build the trust-region models and our management of the interpolation points based on Newton fundamental polynomials. Moreover the complexity of ourmethod is very attractive. We have tested the algorithmagainst the best state-of-theart methods (UOBYQA, NEWUOA, DFO). The tests on the problems from the CUTEr collection show that BOOSTERS is performing very well on medium-size problems. Moreover, it is able to solve problems of dimension 200, which is considered very large in derivative-free optimization.
```
@Article{OeuvBier06-booster,
  author = {Rodrigue Oeuvray and Michel Bierlaire},
  title = {BOOSTERS: a derivative-free algorithm based on radial basis functions},
  journal = {International Journal of Modelling and Simulation},
  year = {2009},
  volume = {29},
  number = {1},
  pages = {26-36},
  DOI = {10.2316/Journal.205.2009.1.205-4634},
  note = {Accepted on Jul 10, 2006}}}
```

2008

Oeuvray R., Bierlaire M. (2008). A doped derivative-free algorithm. International Journal of Modelling and Simulation 28 (4):387-393


@Article{OeuvBier06-doped,
  author = {Rodrigue Oeuvray and Michel Bierlaire},
  title = {A doped derivative-free algorithm},
  journal = {International Journal of Modelling and Simulation},
  year = {2008},
  volume = {28},
  number = {4},
  pages = {387-393},
  DOI = {10.2316/Journal.205.2008.4.205-4660},
  note = {Accepted on Jul 01, 2006}}}

2007

Oeuvray R., Bierlaire M. (2007). A new derivative-free algorithm for the medical image registration problem. International Journal of Modelling and Simulation 27 (2):115-124

The medical image registration problem can be formulated as a nonlinear programming problem. To identify appropriate algorithms to solve it, it is critical to analyze the properties of the problem. In this paper, we consider the image registration problem based on maximization of mutual information when the partial volume (PV) interpolation is used to update the joint histogram. We identify pathological cases which may happen in practice, and which may lead to discontinuous instances of the objective function. We show that the objective function is not di&#64256;erentiable and that the set of non- di&#64256;erentiability is of null measure. Then, we propose a derivative- free algorithm specially designed for this application. Derivative- free optimization involves all the methods used to minimize an objective function when its derivatives are not available and when the function is expensive. We present here, a trust-region algorithm based on radial basis functions instead of the classical second-order polynomials. Actually, our surrogate of the objective function is a mixed radial and polynomial model. On the instances of the medical image registration problem, our method surpasses all the tested state-of-the-art derivative-free algorithms.
```
@Article{OeuvBier06-medical,
  author = {Rodrigue Oeuvray and Michel Bierlaire},
  title = {A new derivative-free algorithm for the medical image registration problem},
  journal = {International Journal of Modelling and Simulation},
  year = {2007},
  volume = {27},
  number = {2},
  pages = {115-124},
  DOI = {10.2316/Journal.205.2007.2.205-4367}}}
```

Book chapters

2004

Oeuvray R., Bierlaire M. (2004) A New Derivative-free Algorithm for the Medical Image Registration Problem. In Hamza, M. H. (ed) Modelling, Simulation, and Optimization, Acta Press [ISBN 0-88986-424-1]


@InProceedings{OeuvBier04,
  author = {Rodrigue Oeuvray and Michel Bierlaire},
  title = {A New Derivative-free Algorithm for the Medical Image Registration Problem},
  year = {2004},
  booktile = {Modelling, Simulation, and Optimization},
  editor = {Hamza and  M. H.},
  publisher = {Acta Press}}}

Technical reports

2004

Oeuvray R. (2004). Convergence theory of the BOOSTERS algorithm. Report RO-2004.1208


@TechReport{Oeuv04,
  author = {Rodrigue Oeuvray},
  title = {Convergence theory of the BOOSTERS algorithm},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2004},
  type = {Technical Report},
  number = {RO-2004.1208},
  address = {Lausanne, Switzerland}}}

Oeuvray R., Bierlaire M. (2004). Performance evaluation of BOOSTERS. Report RO-2004.1207


@TechReport{OeuvBier04a,
  author = {Rodrigue Oeuvray and Michel Bierlaire},
  title = {Performance evaluation of BOOSTERS},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2004},
  type = {Technical Report},
  number = {RO-2004.1207},
  address = {Lausanne, Switzerland}}}

Oeuvray R., Bierlaire M. (2004). BOOSTERS: A Derivative-Free Algorithm Based on Radial Basis Functions. Report RO 2004.1124


@TechReport{OeuvBier04b,
  author = {Rodrigue Oeuvray and Michel Bierlaire},
  title = {BOOSTERS: A Derivative-Free Algorithm Based on Radial Basis Functions},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2004},
  type = {Technical Report},
  number = {RO 2004.1124},
  address = {Lausanne, Switzerland}}}

Oeuvray R., Bierlaire M. (2004). A New Derivative-free Algorithm for the Medical Image Registration Problem. Report RO 2004.0731


@TechReport{OeuvBier04c,
  author = {Rodrigue Oeuvray and Michel Bierlaire},
  title = {A New Derivative-free Algorithm for the Medical Image Registration Problem},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2004},
  type = {Technical Report},
  number = {RO 2004.0731},
  address = {Lausanne, Switzerland}}}

2002

Oeuvray R., Bierlaire M. (2002). On the differentiability of the MI estimator. Report RO-020403


@TechReport{OeuvBier02,
  author = {Rodrigue Oeuvray and Michel Bierlaire},
  title = {On the differentiability of the MI estimator},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2002},
  type = {Technical Report},
  number = {RO-020403},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2004

Oeuvray R. (2004) A derivative-free algorithm for the medical image registration problem. Proceedings of the 4th IASTED International conference on Modeling, Simulation and Optimization (IASTED), August, 17-19, Kauai, Hawa�, USA


@InProceedings{Oeuv04,
  author = {Rodrigue Oeuvray},
  title = {A derivative-free algorithm for the medical image registration problem},
  booktime = {Proceedings of the 4th IASTED International conference on Modeling, Simulation and Optimization (IASTED), August, 17-19},
  year = {2004},
  address = {Kauai, Hawa{\"\i}, USA}}}

Talks

2003

Oeuvray R., Bierlaire M. A Derivative-Free Algorithm based on Radial Basis Functions (RBF) August 18, 2003. 18th International Symposium on Mathematical Programming, Copenhagen, Denmark.


@Misc{ISMP03-ROD,
  author = {Rodrigue Oeuvray and Michel Bierlaire},
  title = {A Derivative-Free Algorithm based on Radial Basis Functions (RBF)},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/ISMP03-ROD.pdf}},
  year = {2003},
  note = {Presented at 18th International Symposium on Mathematical Programming, Copenhagen, Denmark}}}

Research projects

2002

Doped derivative-free algorithms for medical image registration

Design of a new class of derivative-free algorithms exploiting some derivative information, customized for the image registration problem
- Apr 01, 2002 - Mar 31, 2005
- Sponsor: Swiss National Science Foundation
- Principal investigator: Michel Bierlaire
- Project manager: Rodrigue Oeuvray

2001

Algorithmes d'optimisation performants pour le recalage rigide d'images en radiochirurgie et en radioth�rapie st�r�otaxique fractionn�e assist�es par ordinateur

Development and adaptations of efficient optimisation algorithms dedicated to brain images registration
- Mar 01, 2001 - Mar 31, 2002
- Sponsor: Fonds UNIL-EPFL
- Principal investigator: Michel Bierlaire
- Project manager: Michel Bierlaire
- Collaborator: Rodrigue Oeuvray

Frank Crittin

Frank Crittin has been a member of the laboratory from May 01, 1998 to Feb 29, 2004

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Frank Crittin.

Journal articles

2007

Bierlaire M., Crittin F., Thémans M. (2007). A multi-iterate method to solve systems of nonlinear equations. European Journal of Operational Research 183 (1):20-41

We propose an extension of secant methods for nonlinear equations using a population of previous iterates. Contrarily to classical secant methods, where exact interpolation is used, we prefer a least squares approach to calibrate the linear model. We propose an explicit control of the numerical stability of the method. We show that our approach can lead to an update formula. In that case, we prove the local convergence of the corresponding undamped quasi-Newton method. Finally, computational comparisons with classical quasi-Newton methods highlight a significant improvement in terms of robustness and number of function evaluations. We also present numerical tests showing the robust behavior of our method in the presence of noise.
```
@Article{BierCritThem06,
  author = {Michel Bierlaire and Frank Crittin and Micha\"el Th\'emans},
  title = {A multi-iterate method to solve systems of nonlinear equations},
  journal = {European Journal of Operational Research},
  year = {2007},
  volume = {183},
  number = {1},
  pages = {20-41},
  DOI = {10.1016/j.ejor.2006.09.080}}}
```

2006

Bierlaire M., Crittin F. (2006). Solving noisy large scale fixed point problems and systems of nonlinear equations. Transportation Science 40 (1):44-63

Many complex transportation models can be formulated as fixed-point problems. Typical examples are the “equilibrium-like” models, motivated by the need to capture the interaction between the transport supply (that is, the infrastructure) and transport demand (that is, travelers’ behavior) in various ways. In this paper, we propose a new approach for solving fixed-point problems and, equivalently, systems of nonlinear equations. It is a generalization of secant methods, and uses several previous iterates to generate a linear approximation of the nonlinear function. Although it belongs to the quasi-Newton family of methods, our algorithm is matrix free, allowing it to solve large-scale systems of equations without derivative and without any particular assumption about the structure of the problem or its Jacobian. Computational experiments on standard problems show that this algorithm outperforms classical, large-scale quasi-Newton methods in terms of efficiency and robustness. Its numerical performances are similar to Newton- Krylov methods currently considered as the best algorithms to solve large-scale nonlinear systems of equations. Furthermore, our approach, using multiple previous iterates to build a linear approximation of the nonlinear function, exhibits robust behavior in the presence of noise in the equations, which makes it particularly well adapted to transportation problems. We run our algorithm on a simple origin-destination (OD) matrix estimation problem and on some instances of the consistent anticipatory route guidance (CARG) problem, to illustrate the applicability of the proposed method and to show its significant superiority to the classical method of successive averages (MSA). Regarding size, we were able to solve a CARG problem with more than 120,000 variables. We were also able to solve classical problems with up to two million variables.
```
@Article{BierCrit06,
  author = {Michel Bierlaire and Frank Crittin},
  title = {Solving noisy large scale fixed point problems and systems of nonlinear equations},
  journal = {Transportation Science},
  year = {2006},
  volume = {40},
  number = {1},
  pages = {44-63},
  DOI = {10.1287/trsc.1050.0119}}}
```

2004

Bierlaire M., Crittin F. (2004). An efficient algorithm for real-time estimation and prediction of dynamic OD table. Operations Research 52 (1):116-127

The problem of estimating and predicting Origin-Destination (OD) tables is known to be important and difficult. In the specific context of Intelligent Transportation Systems (ITS), the dynamic nature of the problem and the real-time requirements make it even more intricate. We consider here a least-square modeling approach for solving the OD estimation and prediction problem, which seems to offer convenient and flexible algorithms. The dynamic nature of the problem is represented by an autoregressive process, capturing the serial correlations of the state variables. Our formulation is inspired from Cascetta et al. (1993) and Ashok and Ben-Akiva (1993). We compare the Kalman filter algorithm to LSQR, an iterative algorithm proposed by Paige and Saunders (1982) for the solution of large-scale least-squares problems. LSQR explicitly exploits matrix sparsity, allowing to consider larger problems likely to occur in real applications. We show that the LSQR algorithm significantly decreases the computation effort needed by the Kalman filter approach for large-scale problems. We also provide a theoretical number of flops for both algorithms to predict which algorithm will perform better on a specific instance of the problem.
```
@Article{BierCrit04,
  author = {Michel Bierlaire and Frank Crittin},
  title = {An efficient algorithm for real-time estimation and prediction of dynamic OD table},
  journal = {Operations Research},
  year = {2004},
  volume = {52},
  number = {1},
  pages = {116-127},
  DOI = {10.1287/opre.1030.0071}}}
```

Book chapters

2007

Liebling T., Bierlaire M., Crittin F., Hêche J., Thiémard E., Stagno A., Righetti F. (2007) Modeling and simulation in logistics. In Perret, F.-L., Jaffeux, C., Fender, M. and Wieser, Ph. (ed) Essential of logistics and management, EPFL Press , Lausanne, Switzwerland [ISBN 978-2-940222-16-2]


@InProceedings{LiebBierCritHechThieStagRigh07,
  author = {Thomas Liebling and Michel Bierlaire and Frank Crittin and Jean-Fran\c{c}ois H\^eche and Eric Thi\'emard and Antonio Stagno and Franco Righetti},
  title = {Modeling and simulation in logistics},
  year = {2007},
  booktile = {Essential of logistics and management},
  editor = {Perret and  F.-L. and  Jaffeux and  C. and  Fender and  M. and Wieser and  Ph.},
  series = {Management of Technology Series},
  publisher = {EPFL Press},
  address = {Lausanne, Switzwerland},
  pages = {283-322}}}

2002

Liebling T., Bierlaire M., Crittin F., Hêche J., Thiémard E., Stagno A., Righetti F. (2002) Modeling and simulation in logistics. In Perret, F.-L. and Jaffeux, C. (ed) The Essentials of Logistics and Management, EPFL Press [ISBN 2-88074-510-1]


@InProceedings{LiebBierCritHechThieStagRigh02,
  author = {Thomas Liebling and Michel Bierlaire and Frank Crittin and Jean-Fran\c{c}ois H\^eche and Eric Thi\'emard and Antonio Stagno and Franco Righetti},
  title = {Modeling and simulation in logistics},
  year = {2002},
  booktile = {The Essentials of Logistics and Management},
  editor = {Perret and  F.-L. and Jaffeux and  C.},
  publisher = {EPFL Press},
  pages = {281--324}}}

Technical reports

2006

Bierlaire M., Crittin F., Thémans M. (2006). A multi-iterate method to solve systems of nonlinear equations. Report GR-BIE-REPORT-2006-001


@TechReport{BierCritThem06,
  author = {Michel Bierlaire and Frank Crittin and Micha\"el Th\'emans},
  title = {A multi-iterate method to solve systems of nonlinear equations},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2006},
  type = {Technical Report},
  number = {GR-BIE-REPORT-2006-001},
  address = {Lausanne, Switzerland}}}

2004

Bierlaire M., Crittin F. (2004). A class of multi-iterate methods to solve systems of nonlinear equations. Report RO-040319


@TechReport{BierCrit04a,
  author = {Michel Bierlaire and Frank Crittin},
  title = {A class of multi-iterate methods to solve systems of nonlinear equations},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2004},
  type = {Technical Report},
  number = {RO-040319},
  address = {Lausanne, Switzerland}}}

2003

Bierlaire M., Crittin F. (2003). Solving large scale systems of nonlinear equations. Report RO 2003.08.04


@TechReport{BierCrit03,
  author = {Michel Bierlaire and Frank Crittin},
  title = {Solving large scale systems of nonlinear equations},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2003},
  type = {Technical Report},
  number = {RO 2003.08.04},
  address = {Lausanne, Switzerland}}}

2002

Bierlaire M., Crittin F. (2002). A generalization of secant methods for solving nonlinear systems of equations. Report RO 2002.0120


@TechReport{BierCrit02,
  author = {Michel Bierlaire and Frank Crittin},
  title = {A generalization of secant methods for solving nonlinear systems of equations},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2002},
  type = {Technical Report},
  number = {RO 2002.0120},
  address = {Lausanne, Switzerland}}}

2001

Bierlaire M., Crittin F. (2001). An efficient algorithm for real-time estimation and prediction of dynamic OD tables. Report RO 2001.0808


@TechReport{BierCrit01,
  author = {Michel Bierlaire and Frank Crittin},
  title = {An efficient algorithm for real-time estimation and prediction of dynamic OD tables},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2001},
  type = {Technical Report},
  number = {RO 2001.0808},
  address = {Lausanne, Switzerland}}}

Crittin F., Bierlaire M. (2001). New algorithmic approaches for the anticipatory route guidance generation problem. Report


@TechReport{CritBier01,
  author = {Frank Crittin and Michel Bierlaire},
  title = {New algorithmic approaches for the anticipatory route guidance generation problem},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2001},
  type = {Technical Report},
  address = {Lausanne, Switzerland}}}

2000

Liebling T., Bierlaire M., Crittin F., Hêche J., Thiémard E., Stagno A., Righetti F. (2000). Modeling and simulation in logistics. Report RO 2000.0831


@TechReport{LiebBierCritHechThieStagRigh00,
  author = {Thomas Liebling and Michel Bierlaire and Frank Crittin and Jean-Fran\c{c}ois H\^eche and Eric Thi\'emard and Antonio Stagno and Franco Righetti},
  title = {Modeling and simulation in logistics},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2000},
  type = {Technical Report},
  number = {RO 2000.0831},
  address = {Lausanne, Switzerland}}}

1999

Bierlaire M., Crittin F. (1999). Optimisation de grande taille sans d�riv�e: Etat de l'art et perspectives. Report RO 99.04.14


@TechReport{BierCrit99,
  author = {Michel Bierlaire and Frank Crittin},
  title = {Optimisation de grande taille sans d\'eriv\'ee: Etat de l'art et perspectives},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {1999},
  type = {Technical Report},
  number = {RO 99.04.14},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2003

Crittin F., Bierlaire M. (2003) Solving the anticipatory route guidance generation problem using a generalization of secant methods. Proceedings of the Swiss Transport Research Conference (STRC), March, 19-21, Ascona, Switzerland


@InProceedings{CritBier03b,
  author = {Frank Crittin and Michel Bierlaire},
  title = {Solving the anticipatory route guidance generation problem using a generalization of secant methods},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), March, 19-21},
  year = {2003},
  address = {Ascona, Switzerland}}}

Crittin F., Bierlaire M. (2003) A generalization of secant methods for solving nonlinear systems of equations. Proceedings of the Swiss Transport Research Conference (STRC), March, 19-21, Ascona, Switzerland


@InProceedings{CritBier03a,
  author = {Frank Crittin and Michel Bierlaire},
  title = {A generalization of secant methods for solving nonlinear systems of equations},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), March, 19-21},
  year = {2003},
  address = {Ascona, Switzerland}}}

2002

Bierlaire M., Crittin F. (2002) LSQR algorithm for real-time OD estimation and prediction. Proceedings of the 1st Greek Transportation Research ConferenceFebruary, 21-22, Athens, Greece


@InProceedings{BierCrit02,
  author = {Michel Bierlaire and Frank Crittin},
  title = {LSQR algorithm for real-time OD estimation and prediction},
  booktime = {Proceedings of the 1st Greek Transportation Research Conference, February, 21-22},
  year = {2002},
  address = {Athens, Greece}}}

Crittin F., Bierlaire M. (2002) An efficient algorithm for real-time estimation and prediction of dynamic OD table. Proceedings of the Swiss Transport Research Conference (STRC), March, 20-22, Ascona, Switzerland


@InProceedings{CritBier02,
  author = {Frank Crittin and Michel Bierlaire},
  title = {An efficient algorithm for real-time estimation and prediction of dynamic OD table},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), March, 20-22},
  year = {2002},
  address = {Ascona, Switzerland}}}

2001

Crittin F., Bierlaire M. (2001) New Algorithmic Approaches for the Anticipatory Route Guidance Generation Problem. Proceedings of the Swiss Transport Research Conference (STRC), March, 01-03, Ascona, Switzerland


@InProceedings{CritBier01,
  author = {Frank Crittin and Michel Bierlaire},
  title = {New Algorithmic Approaches for the Anticipatory Route Guidance Generation Problem},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), March, 01-03},
  year = {2001},
  address = {Ascona, Switzerland}}}

2000

Liebling T., Bierlaire M., Crittin F., Righetti F., Stagno A. (2000) Modeling and Simulation in Logistics. Proceedings of the IML - Module M7 (IML), April, 10-14, Lausanne, Switzerland


@InProceedings{LiebBierCritRighStag00,
  author = {Thomas Liebling and Michel Bierlaire and Frank Crittin and Franco Righetti and Antonio Stagno},
  title = {Modeling and Simulation in Logistics},
  booktime = {Proceedings of the IML - Module M7 (IML), April, 10-14},
  year = {2000},
  address = {Lausanne, Switzerland}}}

Talks

2003

Crittin F., Bierlaire M. A new approach to solve large-scale systems of nonlinear equations August 18, 2003. 18th International Symposium on Mathematical Programming, Copenhagen, Denmark.


@Misc{ISMP03-FRA,
  author = {Frank Crittin and Michel Bierlaire},
  title = {A new approach to solve large-scale systems of nonlinear equations},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/ISMP03-FRA.pdf}},
  year = {2003},
  note = {Presented at 18th International Symposium on Mathematical Programming, Copenhagen, Denmark}}}

Awards

2006

Michel Bierlaire, Frank Crittin. Best Paper Award,, Transportation Science & Logistics Society, INFORMS.
Bierlaire, M., and Crittin, F. (2004). An efficient algorithm for real-time estimation and prediction of dynamic OD table, Operations Research 52(1):116-127..

Research projects

2001

New algorithms for the route guidance generation problem

Development of new algorithms to solve the route guidance generation problem, based on several formulations of the problem, combining a fixed-point approach with an optimization approach
- Apr 01, 2001 - Mar 31, 2004
- Sponsor: Swiss National Science Foundation
- Principal investigator: Michel Bierlaire
- Project manager: Frank Crittin

2000

Optimisation de grande taille sans d�riv�s (Large-scale derivate-free optimization)

Develop a new research track in large-scale derivative-free optimization
- Jan 01, 2000 - Jan 01, 2001
- Sponsor: Ecole Polytechnique Fédérale de Lausanne
- Principal investigator: Michel Bierlaire
- Project manager: Michel Bierlaire
- Collaborator: Frank Crittin

1998

Development and Evaluation of DynaMIT, a real-time Dynamic Traffic Assignment system for traffic prediction and guidance generation

Collaborate with MIT for the development and evaluation of DynaMIT, a Dynamic Traffic Assignment System (DTA) that supports real-time applications such as synamic route guidance and adaptative traffic control
- Oct 01, 1998 - Oct 31, 2001
- Sponsor: Intelligent Transportation Systems Program, Massachusetts Institute of Technology
- Principal investigator: Michel Bierlaire
- Project manager: Michel Bierlaire
- Collaborator: Frank Crittin

Semester projects

nan-2004

Adaptation of GSM for unconstrained nonlinear optimization, Anouck Brossard and Sarah Degallier (Mathematics)

Supervision: Michaël Thémans, Frank Crittin, Michel Bierlaire

Dynamic O-D matrices estimation with iGSM, Olivier Grandjean (Mathematics)

Supervision: Frank Crittin, Michaël Thémans, Michel Bierlaire

nan-2003

Testing GSM on unconstrained nonlinear optimization problems, Mina Adel Latif (Communication Systems)

Supervision: Michaël Thémans, Frank Crittin, Michel Bierlaire

Gianluca Antonini

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Gianluca Antonini.

Journal articles

2010

Sorci M., Antonini G., Cruz J., Robin T., Bierlaire M., Thiran J. (2010). Modelling human perception of static facial expressions. Image and Vision Computing 28 (5):790-806

A recent internet based survey of over 35'000 samples has shown that when different human observers are asked to assign labels to static human facial expressions, different individuals categorize differently the same image. This fact results in a lack of an unique ground-truth, an assumption held by the large majority of existing models for classification. This is especially true for highly ambiguous expressions, especially in the lack of a dynamic context. In this paper we propose to address this shortcoming by the use of Discrete Choice Models (DCM) to describe the choice a human observer is faced to when assigning labels to static facial expressions. Different models of increasing complexity are specified to capture the causal effect between features of an image and its associated expression, using several combinations of different measurements. The sets of measurements we used are largely inspired by FACS but also introduce some new ideas, specific to a static framework. These models are calibrated using maximum likelihood techniques and they are compared with each other using a likelihood ratio test, in order to test for significance in the improvement resulting from adding supplemental features. Through a cross-validation procedure we assess the validity of our approach against overfitting and we provide a comparison with an alternative model based on Neural Networks for benchmark purposes.
```
@Article{SorcAntoCruzRobiBierThir09,
  author = {Matteo Sorci and Gianluca Antonini and Javier Cruz and Thomas Robin and Michel Bierlaire and Jean-Philippe Thiran},
  title = {Modelling human perception of static facial expressions},
  journal = {Image and Vision Computing},
  year = {2010},
  volume = {28},
  number = {5},
  pages = {790-806},
  DOI = {10.1016/j.imavis.2009.10.003},
  note = {Accepted on Oct 07, 2009}}}
```

2009

Robin T., Antonini G., Bierlaire M., Cruz J. (2009). Specification, estimation and validation of a pedestrian walking behavior model. Transportation Research Part B: Methodological 43 (1):36-56

We propose and validate a model for pedestrian walking behavior, based on discrete choice modeling. Two main types of behavior are identified: unconstrained and constrained. By unconstrained, we refer to behavior patterns which are independent from other individuals. The constrained patterns are captured by a leader-follower model and by a collision avoidance model. The spatial correlation between the alternatives is captured by a cross nested logit model. The model is estimated by maximum likelihood estimation on a real data set of pedestrian trajectories, manually tracked from video sequences. The model is successfully validated using a bi-directional flow data set, collected in controlled experimental conditions at Delft university.
```
@Article{RobiAntoBierCruz08,
  author = {Thomas Robin and Gianluca Antonini and Michel Bierlaire and Javier Cruz},
  title = {Specification, estimation and validation of a pedestrian walking behavior model},
  journal = {Transportation Research Part B: Methodological},
  year = {2009},
  volume = {43},
  number = {1},
  pages = {36-56},
  DOI = {10.1016/j.trb.2008.06.010},
  note = {Accepted on Jun 11, 2008}}}
```

2006

Antonini G., Venegas S., Bierlaire M., Thiran J. (2006). Behavioral priors for detection and tracking of pedestrians in video sequences. International Journal of Computer Vision 69 (2):159-180

In this paper we address the problem of detection and tracking of pedestrians in complex scenarios. The inclusion of prior knowledge is more and more crucial in scene analysis to guarantee flexibility and robustness, necessary to have reliability in complex scenes. We aim to combine image processing methods with behavioral models of pedestrian dynamics, calibrated on real data. We introduce Discrete Choice Models (DCM) for pedestrian behavior and we discuss their integration in a detection and tracking context. The obtained results show how it is possible to combine both methodologies to improve the performances of such systems in complex sequences.
```
@Article{AntoVeneBierThir06,
  author = {Gianluca Antonini and Santiago Venegas and Michel Bierlaire and Jean-Philippe Thiran},
  title = {Behavioral priors for detection and tracking of pedestrians in video sequences},
  journal = {International Journal of Computer Vision},
  year = {2006},
  volume = {69},
  number = {2},
  pages = {159-180},
  DOI = {10.1007/s11263-005-4797-0}}}
```
Antonini G., Bierlaire M., Weber M. (2006). Discrete choice models of pedestrian walking behavior. Transportation Research Part B: Methodological 40 (8):667-687

We propose a discrete choice framework for pedestrian dynamics, modelling short term behavior of individuals as a response to the presence of other pedestrians. We use a dynamic and individual-based spatial discretization, representing the physical space. We develop a model predicting where the next step of a walking pedestrian will be, at a given point in time. The use of the discrete choice framework is justified by its flexibility, the capacity to deal with individuals and the compatibility with agent-based simulation. The model is calibrated using data from actual pedestrian movements, manually taken from video sequences. We present two different formulations: a cross-nested logit and a mixed nested logit. In order to verify the quality of the calibrated model, we have designed and developed a pedestrians simulator.
```
@Article{AntoBierWebe06,
  author = {Gianluca Antonini and Michel Bierlaire and Mats Weber},
  title = {Discrete choice models of pedestrian walking behavior},
  journal = {Transportation Research Part B: Methodological},
  year = {2006},
  volume = {40},
  number = {8},
  pages = {667-687},
  DOI = {10.1016/j.trb.2005.09.006}}}
```

Book chapters

2010


@InProceedings{SorcRobiCruzBierThirAnto10,
  author = {Matteo Sorci and Thomas Robin and Javier Cruz and Michel Bierlaire and Jean-Philippe Thiran and Gianluca Antonini},
  title = {Capturing Human Perception of Facial Expressions by Discrete Choice Modelling},
  year = {2010},
  booktile = {Choice Modelling: The State-of-the-Art and the State-of-Practice},
  editor = {S. Hess and A. Daly},
  publisher = {Emerald Group Publishing Limited},
  pages = {101-136}}}

2007

Antonini G., Bierlaire M. (2007) A discrete choice framework for acceleration and direction change behaviors in walking pedestrians. In Waldau, N., Gattermann, P., Knoflacher, H. and Schreckenberg, M. (ed) Pedestrian and Evacuation Dynamics 2005, Springer [ISBN 978-3-540-47062-5]


@InProceedings{AntoBier07,
  author = {Gianluca Antonini and Michel Bierlaire},
  title = {A discrete choice framework for acceleration and direction change behaviors in walking pedestrians},
  year = {2007},
  booktile = {Pedestrian and Evacuation Dynamics 2005},
  editor = {Waldau and  N. and  Gattermann and  P. and  Knoflacher and  H. and Schreckenberg and  M.},
  publisher = {Springer},
  pages = {155-166}}}


@InProceedings{BierAntoWebe07,
  author = {Michel Bierlaire and Gianluca Antonini and Mats Weber},
  title = {Behavioural dynamics for pedestrians},
  year = {2007},
  booktile = {Moving through nets: the physical and social dimensions of travel},
  editor = {Axhausen and  K. W.},
  publisher = {Elsevier},
  pages = {81-105}}}

2006

Antonini G., Sorci M., Bierlaire M., Thiran J. (2006) Discrete Choice Models for Static Facial Expression Recognition. In Blanc-Talon, J., Philips, W., Popescu, D. and Scheunders, P. (ed) Advanced Concepts for Intelligent Vision Systems, Springer Berlin / Heidelberg [ISBN 978-3-540-44630-9]


@InProceedings{AntoSorcBierThir06,
  author = {Gianluca Antonini and Matteo Sorci and Michel Bierlaire and Jean-Philippe Thiran},
  title = {Discrete Choice Models for Static Facial Expression Recognition},
  year = {2006},
  booktile = {Advanced Concepts for Intelligent Vision Systems},
  editor = {Blanc-Talon and  J. and  Philips and  W. and  Popescu and  D. and Scheunders and  P.},
  volume = {4179},
  series = {Lecture Notes in Computer Science},
  publisher = {Springer Berlin / Heidelberg},
  pages = {710-721}}}

2005

Venegas S., Antonini G., Thiran J., Bierlaire M. (2005) Automatic Pedestrian Tracking Using Discrete Choice Models and Image Correlation Techniques. In Bengio S. and Bourlard H. (ed) Machine Learning for Multimodal Interaction, Springer [ISBN 978-3540245094]


@InProceedings{VeneAntoThirBier05,
  author = {Santiago Venegas and Gianluca Antonini and Jean-Philippe Thiran and Michel Bierlaire},
  title = {Automatic Pedestrian Tracking Using Discrete Choice Models and Image Correlation Techniques},
  year = {2005},
  booktile = {Machine Learning for Multimodal Interaction},
  editor = {Bengio S. and Bourlard H.},
  volume = {3361},
  series = {Lecture Notes in Computer Science},
  publisher = {Springer},
  pages = {341 - 348}}}

Technical reports

2007

Robin T., Antonini G., Bierlaire M., Cruz J. (2007). Specification, estimation and validation of a pedestrian walking behavior model. Report TRANSP-OR 071116


@TechReport{RobiAntoBierCruz07,
  author = {Thomas Robin and Gianluca Antonini and Michel Bierlaire and Javier Cruz},
  title = {Specification, estimation and validation of a pedestrian walking behavior model},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2007},
  type = {Technical Report},
  number = {TRANSP-OR 071116},
  address = {Lausanne, Switzerland}}}

Antonini G., Bierlaire M., Schneider S., Robin T. (2007). Specification, estimation and validation of a pedestrian walking behavior model. Report TRANSP-OR 070727


@TechReport{AntoBierSchnRobi07,
  author = {Gianluca Antonini and Michel Bierlaire and Sabina Schneider and Thomas Robin},
  title = {Specification, estimation and validation of a pedestrian walking behavior model},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2007},
  type = {Technical Report},
  number = {TRANSP-OR 070727},
  address = {Lausanne, Switzerland}}}

2005

Antonini G., Bierlaire M. (2005). Capturing interactions in pedestrian walking behavior in a discrete choice framework. Report GR-BIE-REPORT-2005-001


@TechReport{AntoBier05,
  author = {Gianluca Antonini and Michel Bierlaire},
  title = {Capturing interactions in pedestrian walking behavior in a discrete choice framework},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2005},
  type = {Technical Report},
  number = {GR-BIE-REPORT-2005-001},
  address = {Lausanne, Switzerland}}}

2004

Antonini G., Bierlaire M., Weber M. (2004). Discrete choice models of pedestrian behavior. Report RO-040916


@TechReport{AntoBierWebe04,
  author = {Gianluca Antonini and Michel Bierlaire and Mats Weber},
  title = {Discrete choice models of pedestrian behavior},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2004},
  type = {Technical Report},
  number = {RO-040916},
  address = {Lausanne, Switzerland}}}

Antonini G., Venegas S., Thiran J., Bierlaire M. (2004). A discrete choice pedestrian behavior for pedestrian detection in visual tracking systems. Report RO 2004 09 09


@TechReport{AntoVeneThirBier04,
  author = {Gianluca Antonini and Santiago Venegas and Jean-Philippe Thiran and Michel Bierlaire},
  title = {A discrete choice pedestrian behavior for pedestrian detection in visual tracking systems},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2004},
  type = {Technical Report},
  number = {RO 2004 09 09},
  address = {Lausanne, Switzerland}}}

2002

Antonini G., Venegas S., Bierlaire M., Thiran J. (2002). Behavioral Filtering of Human Trajectories for Automatic-Multi-Track Initiation. Report ITS-03-04


@TechReport{AntoVeneBierThir02,
  author = {Gianluca Antonini and Santiago Venegas and Michel Bierlaire and Jean-Philippe Thiran},
  title = {Behavioral Filtering of Human Trajectories for Automatic-Multi-Track Initiation},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2002},
  type = {Technical Report},
  number = {ITS-03-04},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2008


@InProceedings{RobAntBieCru_ETC08,
  author = {Thomas Robin and Gianluca Antonini and Michel Bierlaire and Javier Cruz},
  title = {Specification, estimation and validation of a pedestrian walking behaviour model},
  booktime = {Proceedings of the European Transportation Research Conference (ETC), October 6-8},
  year = {2008},
  address = {, Netherlands}}}


@InProceedings{SorciAntoCerCruzRobinBierThiran2008,
  author = {Matteo Sorci and Gianluca Antonini and Barbara Cerretani and Javier Cruz and Thomas Robin and Michel Bierlaire and Jean-Philippe Thiran},
  title = {Modelling human perception of static facial expressions},
  booktime = {Proceedings of the 8th IEEE International Conference on Automatic Face and Gesture Recognition (FG2008), September 17-19},
  year = {2008},
  address = {Amsterdam, The Netherlands}}}

2006

Antonini G., Bierlaire M. (2006) Capturing interactions in pedestrian walking behavior in a discrete choice framework. Proceedings of the 6th Swiss Transport Research Conference (STRC), March 15-17, Ascona, Switzerland


@InProceedings{AntoBierl06,
  author = {Gianluca Antonini and Michel Bierlaire},
  title = {Capturing interactions in pedestrian walking behavior in a discrete choice framework},
  booktime = {Proceedings of the 6th Swiss Transport Research Conference (STRC), March 15-17},
  year = {2006},
  address = {Ascona, Switzerland}}}

2004


@InProceedings{AntoBierWebe04,
  author = {Gianluca Antonini and Michel Bierlaire and Mats Weber},
  title = {Simulation of Pedestrian Behaviour using a Discrete Choice Model Calibrated on Actual Motion Data},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), March 24-26},
  year = {2004},
  address = {Ascona, Switzerland}}}

Awards

2009

Thomas Robin, Gianluca Antonini, Michel Bierlaire, Javier Cruz. Ranked 1st in the TOP 25 hottest articles of Transportation Research Part B for January-March 2009, Transportation Research Part B.
Robin, T., Antonini, G., Bierlaire, M., and Cruz, J. (2009). Specification, estimation and validation of a pedestrian walking behavior model, Transportation Research Part B: Methodological 43(1):36-56. doi:10.1016/j.trb.2008.06.010.
Gianluca Antonini, Michel Bierlaire, Mats Weber. Ranked 12th in the TOP 25 hottest articles of Transportation Research Part B for January-March 2009, Transportation Research Part B.
Antonini, G., Bierlaire, M., and Weber, M. (2006). Discrete choice models of pedestrian walking behavior, Transportation Research Part B: Methodological 40(8):667-687. doi:10.1016/j.trb.2005.09.006.

2008

Thomas Robin, Gianluca Antonini, Michel Bierlaire, Javier Cruz. Ranked 1st in the TOP 25 hottest articles of Transportation Research Part B for October-December 2008, Transportation Research Part B.
Robin, T., Antonini, G., Bierlaire, M., and Cruz, J. (2009). Specification, estimation and validation of a pedestrian walking behavior model, Transportation Research Part B: Methodological 43(1):36-56. doi:10.1016/j.trb.2008.06.010.

2006

Gianluca Antonini. Honorable mention in the 2005 Eric Pas Dissertation Prize, The International Association for Travel Behaviour Research.
Gianluca Antonini, Michel Bierlaire. Ranked first in the TOP 25 hottest articles of Transportation Research Part B for April-June 2006, Transportation Research Part B. with M. Weber.
Antonini, G., Bierlaire, M., and Weber, M. (2006). Discrete choice models of pedestrian walking behavior, Transportation Research Part B: Methodological 40(8):667-687..
Gianluca Antonini. EPFL PhD Prize , EPFL.
The jury has proceeded in two steps, selecting 8 PhD theses during the first round. Two of these were granted the prizes and two others were transferred to the Chorafas Foundation Award. However, the jury felt that the other 4 candidates also deserve some visibility since after all their scientific work is (according to the opinion of the jury) ranking among the best 4 % (8 out of 250) PhD theses awarded by EPFL in 2005. .

Research projects

2006

Path to purchase

To understand consumer behavior in his or her path to purchase.
- Jul 01, 2006 - Jun 30, 2008
- Sponsor: Nestlé
- Principal investigator: Michel Bierlaire
- Project manager: Kamran Houshang Pour
- Collaborators: Thomas Robin, Gianluca Antonini

2002

SIMBAD: Simulation-Based Automatic Detection

Develop a model-based detection system where the scene analysis is supported by a crowd simulator
- Oct 01, 2002 - Sep 30, 2004
- Sponsor: Commission pour la technologie et de l'innovation, Office Fédéral de la formation professionnelle et de la technologie.
- Principal investigator: Michel Bierlaire
- Project manager: Mats Weber
- Collaborator: Gianluca Antonini
Pedestrian simulation

We develop models of pedestrian movements based on discrete choice analysis.
- Oct 01, 2002 - Oct 01, 2004
- Sponsor: Transport and Mobility Laboratory, EPFL
- Principal investigator: Michel Bierlaire
- Project manager: Michel Bierlaire
- Collaborators: Gianluca Antonini, Thomas Robin, Javier Cruz
Behavioral model-based scene analysis

Development of disaggregate behavior model for scene analysis in the context of video surveillance
- Jul 01, 2002 - Jun 30, 2005
- Sponsor: NCCR Interactive Multimodal Information Management
- Principal investigator: Michel Bierlaire
- Project manager: Michel Bierlaire
- Collaborator: Gianluca Antonini

Ivan Spassov

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Ivan Spassov.

Talks

2006

Spassov I., Bierlaire M., Merminod B. Bayesian approach for indoor pedestrian localisation March 15, 2006. Swiss Transportation Research Conference, Ascona, Switzerland.


@Misc{STRC06-IVA,
  author = {Ivan Spassov and Michel Bierlaire and Bertrand Merminod},
  title = {Bayesian approach for indoor pedestrian localisation},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/STRC06-IVA.pdf}},
  year = {2006},
  note = {Presented at Swiss Transportation Research Conference, Ascona, Switzerland}}}

Ali Najmi

Ali Najmi has been a member of the laboratory from Sep 01, 2023 to May 31, 2024

Risa Kobayashi

Risa Kobayashi has been a member of the laboratory from Jun 01, 2023 to May 31, 2024

Personal webpage

Robin Legault

Robin Legault has been a member of the laboratory from May 01, 2023 to Aug 31, 2023

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Robin Legault.

Journal articles

2024

Haering T., Legault R., Torres F., Ljubic I., Bierlaire M. (2024). Exact Algorithms for Continuous Pricing with Advanced Discrete Choice Demand Models. OR Spectrum


@Article{HaerLegaTorrLjubBier24,
  author = {Tom Haering and Robin Legault and {Fabian Alejandro} Torres and Ivana Ljubic and Michel Bierlaire},
  title = {Exact Algorithms for Continuous Pricing with Advanced Discrete Choice Demand Models},
  journal = {OR Spectrum},
  year = {2024},
  DOI = {10.1007/s00291-024-00799-3},
  note = {Accepted on Oct 29, 2024}}}

Technical reports

2024

Haering T., Legault R., Torres F., Bierlaire M. (2024). Heuristics and Exact Algorithms for Choice-Based Capacitated and Uncapacitated Continuous Pricing. Report TRANSP-OR 240905


@TechReport{HaerLegaTorrBier2024,
  author = {Tom Haering and Robin Legault and {Fabian Alejandro} Torres and Michel Bierlaire},
  title = {Heuristics and Exact Algorithms for Choice-Based Capacitated and Uncapacitated Continuous Pricing},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2024},
  type = {Technical Report},
  number = {TRANSP-OR 240905},
  address = {Lausanne, Switzerland}}}

2023

Haering T., Legault R., Torres F., Ljubic I., Bierlaire M. (2023). Exact Algorithms for Continuous Pricing with Advanced Discrete Choice Demand Models. Report TRANSP-OR 231211


@TechReport{HaerLegaTorrLjubBier2023,
  author = {Tom Haering and Robin Legault and {Fabian Alejandro} Torres and Ivana Ljubic and Michel Bierlaire},
  title = {Exact Algorithms for Continuous Pricing with Advanced Discrete Choice Demand Models},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2023},
  type = {Technical Report},
  number = {TRANSP-OR 231211},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2024

Haering T., Legault R., Torres F., Bierlaire M. (2024) Fast Algorithms for Capacitated Continuous Pricing with Discrete Choice Demand Models. Proceedings of the 24th Swiss Transport Research Conference (STRC), 15-17 May, Ascona, Switzerland


@InProceedings{Haering_STRC2024,
  author = {Tom Haering and Robin Legault and {Fabian Alejandro} Torres and Michel Bierlaire},
  title = {Fast Algorithms for Capacitated Continuous Pricing with Discrete Choice Demand Models},
  booktime = {Proceedings of the 24th Swiss Transport Research Conference (STRC), 15-17 May},
  year = {2024},
  address = {Ascona, Switzerland}}}

Camille Richer

Camille Richer has been a member of the laboratory from Apr 01, 2023 to Oct 31, 2023

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Camille Richer.

Book chapters

2024

Richer C., Torres F., Bierlaire M. (2024) The Static Elevator Dispatching Problem with Destination Control. In Crainic, T.G., Gendreau, M., Frangioni, A. (ed) Combinatorial Optimization and Applications, Springer , Cham.


@InProceedings{RichTorrBier24,
  author = {Camille Richer and {Fabian Alejandro} Torres and Michel Bierlaire},
  title = {The Static Elevator Dispatching Problem with Destination Control},
  year = {2024},
  booktile = {Combinatorial Optimization and Applications},
  editor = {Crainic and  T.G. and  Gendreau and  M. and  Frangioni and  A.},
  volume = {358},
  series = {Series in Operations Research \& Management Science},
  publisher = {Springer},
  address = {Cham.}}}

Mengyi Wang

Mengyi Wang has been a member of the laboratory from Nov 08, 2022 to Oct 31, 2023

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Mengyi Wang.

Technical reports

2024

Bierlaire M., Wang M. (2024). The MDCEV model with Biogeme: estimation and forecasting. Report TRANSP-OR 240721


@TechReport{BierWang24,
  author = {Michel Bierlaire and Mengyi Wang},
  title = {The MDCEV model with Biogeme: estimation and forecasting},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2024},
  type = {Technical Report},
  number = {TRANSP-OR 240721},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2023


@InProceedings{WanPouBie_STRC2023,
  author = {Mengyi Wang and Janody Pougala and Michel Bierlaire},
  title = {Initial comparisons between Multiple Discrete-Continuous Extreme Value (MDCEV) model and Optimization-based Activity Scheduling Integrating Simultaneous choice dimensions (OASIS) framework},
  booktime = {Proceedings of the 23rd Swiss Transport Research Conference (STRC) (STRC), 10-12 May},
  year = {2023},
  address = {Ascona, Switzerland}}}

Talks

2023

Wang M., Pougala J., Bierlaire M. Initial comparisons between Multiple Discrete-Continuous Extreme Value (MDCEV) model and Optimization-based Activity Scheduling Integrating Simultaneous choice dimensions (OASIS) framework May 12, 2023. 23rd Swiss Transport Research Conference (STRC), Ascona, Switzerland.


@Misc{2023WANG_STRC,
  author = {Mengyi Wang and Janody Pougala and Michel Bierlaire},
  title = {Initial comparisons between Multiple Discrete-Continuous Extreme Value (MDCEV) model and Optimization-based Activity Scheduling Integrating Simultaneous choice dimensions (OASIS) framework},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/2023WANG_STRC.pdf}},
  year = {2023},
  note = {Presented at 23rd Swiss Transport Research Conference (STRC), Ascona, Switzerland}}}

Wang M., Bierlaire M. Further development of Multiple Discrete-Continuous Extreme Value (MDCEV) model and comparisons with OASIS framework February 17, 2023. 1st EPFL Symposium on Transportation Research, EPFL, Annecy, France.


@Misc{Wang_sympo2023,
  author = {Mengyi Wang and Michel Bierlaire},
  title = {Further development of Multiple Discrete-Continuous Extreme Value (MDCEV) model and comparisons with OASIS framework

},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Wang_sympo2023.pdf}},
  year = {2023},
  note = {Presented at 1st EPFL Symposium on Transportation Research, EPFL, Annecy, France}}}

EPFL courses

Spring 2023

Introduction to Transportation Systems.
- Level: Bachelor
- Section: Civil Engineering
- Lecturer: Michel Bierlaire
- Teaching assistants: Marija Kukic, Janody Pougala, Mengyi Wang

Clément Dauvilliers

Clément Dauvilliers has been a member of the laboratory from Sep 15, 2022 to Mar 15, 2023

Jérémy Berthier

Jérémy Berthier is not at transp-or anymore, member of the laboratory since Apr 01, 2019

Théophile Thiery

Théophile Thiery is not at transp-or anymore, member of the laboratory since Mar 15, 2019

Personal webpage

Naghmeh Niroomand

Naghmeh Niroomand has been a member of the laboratory from Sep 01, 2018 to Dec 31, 2018

Sophie Bauer

Sophie Bauer has been a member of the laboratory from Dec 01, 2017 to Dec 31, 2018

Personal webpage

Zhengchao Wang

Zhengchao Wang is not at transp-or anymore, member of the laboratory since Sep 01, 2017

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Zhengchao Wang.

Book chapters

2020


@InProceedings{BierScarNikoOyamMolyWang20,
  author = {Michel Bierlaire and Riccardo Scarinci and Marija Nikolic and Yuki Oyama and Nicholas Molyneaux and Zengchao Wang},
  title = {Methodologies for understanding and improving pedestrian mobility},
  year = {2020},
  booktile = {Handbook of Urban Mobilities},
  editor = {Ole B. Jensen and  Claus Lassen and  Vincent Kaufmann and  Malene Freudendal-Pedersen and  Ida Sofie G{\o}tzsche Lange},
  series = {Routledge International Handbooks},
  publisher = {Routledge}}}

EPFL courses

Spring 2018

Optimization and Simulation.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturers: Michel Bierlaire, Yuki Oyama, Nikola Obrenovic, Riccardo Scarinci
- Teaching assistants: Gael Lederrey, Zhengchao Wang
- Webpage: http://transp-or.epfl.ch/courses/OptSim2018/

Semester projects

2019

Location choice equilibrium - pedestrian demand analysis at EPFL campus, Tianyang Dong (Mathematics)

Supervision: Yuki Oyama, Zhengchao Wang, Michel Bierlaire
Modeling location choice is fundamental to understand travel behavior and to predict travel demand in urban spaces. Location choice models are often developed based on the discrete choice framework and allow the analyst to predict to which place (and when) an individual travels. While the location choice behavior has been studied a lot in the city scale, the literature in pedestrian facilities is relatively limited. In this project, we develop a pedestrian location choice model in the EPFL campus, using the data collected from Wi-Fi traces. We start with developing a simple location choice model and test its specications using the sample. Then the student collects additional data of population for aggregate forecasting, i.e. actual demand prediction at each location. Using this technique, we then extend the model to consider the congestion effect. This involves in a fixed point problem to achieve a Nash equilibrium, solved by the nested fixed point (NFXP) algorithm or the nested pseudo likelihood (NPL) algorithm.

2018-2019

Optimal taxi charging decision given the real-time charging station and taxi states and future uncertainties, Julien Johan Haan (Section of GC), Loic Senser (Section of MTE) (Civil Engineering)

Supervision: Zhengchao Wang, Yuki Oyama, Michel Bierlaire
This project aims at optimizing the charging decision of taxi drivers. Different from conventional taxi drivers, electric taxi drivers are more influenced by their refuelling strategy. This is because the refuelling process of electric taxis is longer than conventional taxis, especially in the case that electric taxis need to wait before charging. This longer charging duration will decrease the serving time of electric taxis which will, in return, influence the profits of electric taxis. Therefore, an intelligent charging decision strategy which can help electric taxis to charge optimally (maximizing the profit of taxi) is highly desirable. To build the optimal charging decision program, we assume that a taxi will make a decision at each time step. When the taxi drivers make a decision, we assume that the taxi driver knows that, in the future hours, what are the expectation and variance of revenue during each time period (let's say 30 minutes). In addition to that, the taxi driver also knows the exact position of charging station and the chargers that are installed in the station. Besides, we also assume that the taxi driver also receives information about the availability of chargers from all stations by the time he makes a decision. Moreover, the taxi driver also has a prediction of the congestion condition of the charging station in the following hours. Based on the above assumption, the taxi drivers make his charging decision at each time step, i.e. charge or not, if charge, where, and when to charge for how much. The students who work on this project should build an optimization program which can make the charging decision for the taxi driver. This project is composed of two stages. First, the students will look into the taxi tracking data to understand the taxi request characteristics. This includes the mean and variance of a taxi running distances and revenue from served taxi demands across the taxis. After, the students will learn to come up with an optimization program which can help the taxi drivers to make the charging decision given the current states of taxis and its knowledge about the future world.

2018

Locating charging station for electric taxis, Oliver Mathias Buschor, Younes Bensaid

Supervision: Zhengchao Wang, Meritxell Pacheco, Michel Bierlaire
This project aims at locating the position of charging station for electric taxis. Currently, transportation is transforming to be more sustainable. The electric vehicle is a promising way to achieve such a goal. However, charger unavailability is among one of the main issues that hindered the adoption of the electric vehicle. To contribute to mitigating such issue, this project is dened accordingly to optimize the charging station location. The location problem is a classic problem in the operational research domain. It is usually solved using a p-median, p-mean, set covering, or flow covering method. The goal of this research is to apply these methods to decide the location of charging stations in San Francisco using taxi tracking data and compare the dierence in the end. This project is composed of three stages. First, the student should work on mapping the taxi tracking data on the map using map-matching techniques. Then, the student should apply point-based location methods (p-median, p- mean, set-covering) to find the optimal location. The student is not required to apply all the relevant methods but chooses one or two in which he is interested. After, the students will apply and characterize a flow-based method. Finally, an analysis of the results is performed to evaluate the results obtained.

Sustainable & intelligent transportation evaluation and plan, David Gunter

Supervision: Zhengchao Wang, Yuki Oyama
This project is composed of two stages. First, the student will search for and make a summary of emerging transportation technologies that are proposed in both literature and industries. After, the student will learn to come up with feasible and promising transportation systems composed of the emerging technologies, and then quantitatively evaluate the proposed systems based on travel demand simulations.

2017

Analysis of pedestrian group behavior based on tracking data and pattern recognition methods, Montesinos Ferrer Martí

Supervision: Marija Nikolic, Evanthia Kazagli, Zhengchao Wang
The objective of this project is to analyze the group behavior among pedestrians based on individual trajectory data. The data is collected in Lausanne train station, where a large-scale network of smart sensors has been used to track pedestrians. The project aims to improve the understanding of group behavior among pedestrians and its impact on pedestrian dynamics. It involves the following steps: (i) Development/selection of suitable methods (e.g. data mining/pattern recognition) for identification of individuals walking together, based on pedestrian trajectory data, and their implementation. (ii) Analysis focused on the behavior of identified groups; (iii) Comparison of the findings with the existing empirical basis, as well as with the proposed theories and models that take group dynamics into account. The student needs to have good programming skills (Scala/Matlab), and knowledge of statistical analysis.

Mor Kaspi

Mor Kaspi is not at transp-or anymore, member of the laboratory since Feb 21, 2017

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Mor Kaspi.

EPFL courses

Spring 2017

Decision-aid methodologies in transportation.
- Level: Master
- Section: Civil Engineering
- Lecturers: Virginie Lurkin, Mor Kaspi
- Teaching assistants: Tom�s Robenek, Stefan Binder, Iliya Markov, Meritxell Pacheco
- Webpage: http://moodle.epfl.ch/enrol/index.php?id=15132

Heather Twaddle

Heather Twaddle has been a member of the laboratory from Oct 10, 2016 to Oct 21, 2016

Federico Orsini

Federico Orsini has been a member of the laboratory from Sep 20, 2016 to Feb 20, 2017

Daniel Emery

Daniel Emery has been a member of the laboratory from Jul 01, 2016 to Aug 31, 2019

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Daniel Emery.

Technical reports

2016

Emery D. (2016). Inspection ind�pendante sur la s�curit� des essais dynamiques sur Lignes Nouvelles. Report TRANSP-OR 161130


@TechReport{Emery16,
  author = {Daniel Emery},
  title = {Inspection ind\'ependante sur la s\'ecurit\'e des essais dynamiques sur Lignes Nouvelles},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2016},
  type = {Technical Report},
  number = {TRANSP-OR 161130},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2016

Emery D. (2016) Operational Temporary Speed Reductions on the ETCS-DMI. Proceedings of the Computers in Railways XV (COMPRAIL), 19 - 21 July 2016, Madrid, Spain


@InProceedings{EmeryComprailXV,
  author = {Daniel Emery},
  title = {Operational Temporary Speed Reductions on the ETCS-DMI},
  booktime = {Proceedings of the Computers in Railways XV (COMPRAIL), 19 - 21 July 2016},
  year = {2016},
  address = {Madrid, Spain}}}

EPFL courses

Spring 2019

Conception et gestion des syst�mes de transport.
- Level: Bachelor
- Section: Civil Engineering
- Lecturer: Daniel Emery
- Webpage: http://moodle.epfl.ch/course/view.php?id=384
Syst�mes de transport.
- Level: Master
- Section: Civil Engineering
- Lecturer: Daniel Emery
- Webpage: http://moodle.epfl.ch/course/view.php?id=12461

Fall 2018

Exploitation ferroviaire.
- Level: Master
- Section: Civil Engineering
- Lecturer: Daniel Emery
- Webpage: http://moodle.epfl.ch/course/view.php?id=10991

Spring 2018

Conception et gestion des syst�mes de transport.
- Level: Bachelor
- Section: Civil Engineering
- Lecturer: Daniel Emery
- Webpage: http://moodle.epfl.ch/course/view.php?id=384
Syst�mes de transport.
- Level: Master
- Section: Civil Engineering
- Lecturer: Daniel Emery
- Webpage: http://moodle.epfl.ch/course/view.php?id=12461

Fall 2017

Exploitation ferroviaire.
- Level: Master
- Section: Civil Engineering
- Lecturer: Daniel Emery
- Webpage: http://moodle.epfl.ch/course/view.php?id=10991

Spring 2017

Conception et gestion des syst�mes de transport.
- Level: Bachelor
- Section: Civil Engineering
- Lecturer: Daniel Emery
- Webpage: http://moodle.epfl.ch/course/view.php?id=384
Syst�mes de transport.
- Level: Master
- Section: Civil Engineering
- Lecturer: Daniel Emery
- Webpage: http://moodle.epfl.ch/course/view.php?id=12461

Fall 2016

Exploitation ferroviaire.
- Level: Master
- Section: Civil Engineering
- Lecturer: Daniel Emery
- Webpage: http://moodle.epfl.ch/course/view.php?id=10991

Various lectures

2018

Installations de s�curit� ferroviaires et Passages � Niveau (PN).
- Introduction � la S�curit� et � la S�ret� dans les TRansports (ISSTR), ParisTech (Ecole Nationale des Ponts et Chauss�es), Noisy-Champs, Paris, France
- Oct 10, 2018 - Oct 10, 2018
- Lecturer: Daniel Emery
Mod�lisation et r�gulation du trafic ferroviaire.
- Simulation et R�gulation du Trafic en Transport Collectif (SRTTC), ParisTech (Ecole Nationale des Ponts et Chauss�es), Noisy-Champs, Paris, France
- Oct 10, 2018 - Oct 10, 2018
- Lecturer: Daniel Emery

2017

Planification de l'exploitation ferroviaire.
- Conception et exploitation des syst�mes logistiques et transport, ParisTech (Ecole Nationale des Ponts et Chauss�es), Noisy-Champs, Paris, France
- Dec 01, 2017 - Dec 01, 2017
- Lecturer: Daniel Emery
Planification de l'exploitation ferroviaire.
- Conception et exploitation des syst�mes logistiques et transport, ParisTech (Ecole Nationale des Ponts et Chauss�es), Noisy-Champs, Paris, France
- Nov 16, 2017 - Nov 16, 2017
- Lecturer: Daniel Emery

2016

Planification de l'exploitation ferroviaire.
- Conception et exploitation des syst�mes logistiques et transport, ParisTech (Ecole Nationale des Ponts et Chauss�es), Noisy-Champs, Paris, France
- Dec 02, 2016 - Dec 02, 2016
- Lecturer: Daniel Emery

Master theses

2018

Offre ferroviaire 2030/35 entre Berne et Lausanne, Benoît Corday (Civil Engineering)
- Supervision: Daniel Emery
- External expert: Vincent Krayenbuhl
Augmentation des réserves de capacité du métro m1 des TL, David Moy de Vitry (Civil Engineering)
- Supervision: Daniel Emery
- External expert: Panos Tzieropoulos
Concepts d'accessibilité pour les JO d'hiver Sion 2026, Clément Sintes (Civil Engineering)
- Supervision: Daniel Emery
- External expert: Claude Strickler

2017-2018

Plan directeur du triangle ferroviaire Clermont-Ferrand – Gannat – St.-Germain-des-Fossés, Jean-Baptiste Landes (Civil Engineering)
- Supervision: Daniel Emery
- External expert: Benoît Descourvières

2017

Organisation d'un interface rail-route en Valais Central, Jérôme Bichsel (Civil Engineering)
- Supervision: Daniel Emery
- External expert: Pascal Bovey
Clip-Air-Rail - Capsules et gabarits ferroviaires, Martin Ellwanger (Civil Engineering)
- Supervision: Daniel Emery, Claudio Leonardi
- External expert: Thomas Bernet

Semester projects

2018-2019

Passage au 1/4h de l'exploitation du FMA, Félix Boesch (Civil Engineering)

Supervision: Daniel Emery
Les Transports Public Fribourgois (TPF) exploite la ligne � voie normale Fribourg-Morat-Anet (FMA). Les trains assurant ce service utilise les voies des CFF � Fribourg, entre Fribourg et Givisiez, � Morat, entre Morat et Muntelier et les voies du Bern-Neuch�tel (BN) expoit� par les BLS � Anet. L'horaire de cette ligne est donc difficile � mettre en place. Le projet consiste � proposer une offre au 1/4h sur toute la ligne et/ou une offre combin�e en pseudo-1/4h en alternant des trains REG et RE. Les mesures d'infrastructures seront mises en �vidence.

Exploitation optimale de la ligne à voie métrique des TPF Palézieux-Bulle- Montbovon, Fabien Jacot-Descombes Jonas Gschwend (Civil Engineering)

Supervision: Daniel Emery
La ligne des TPF � voie m�trique Pal�zieux-Bulle-Montbovon doit offrir de bonnes correpondances dans ces trois noeuds ferroviaire. Le projet consiste � proposer des horaires optimaux en fonction des variantes d'horaire CFF entre Pal�zieux et Fribourg d'une part et de l'exploitation MOB (Montreux-Oberland Bernois) d'autre part. Une desserte plus dense au Sud de Bulle et certains prolongements jusqu'� Chateau d'Oex peuvent �tre envisag�s, en fonction des besoins et des temps de rebroussement disponibles.

Variantes d'horaires sur la tangentielle Nantes-Lyon, Axel Valentin Gabriel Curis (Civil Engineering)

Supervision: Daniel Emery
Environ 69% de la longueur de la tangentielle ferroviaire Nantes-Lyon sont aujourd'hui �lectrifi�s en 25kV/50Hz et 9% en 1,5kV=. Toutefois, les 143 km s�parant St.Germain-des-Foss�s � St.Germain-au-Mt-d'Or restent non �lectrifi�s. Le projet consiste � d�velopper des variantes d'horaires entre Nantes et Lyon en tenant compte notamment des correspondances dans les noeuds de Nantes, Angers, Tours et Bourges. La probl�matique des correspondances avec Clermont-Ferrand sera prise en compte et l'insertion des circulations dans le noeud lyonnais sera sommairement analys�e. Les �ventuelles difficult�s pour cette tangentielle � fournir � la fois une succession de services relativement locaux et une desserte de bout en bout performante seront mises en �vidence.

2018

Conduite Automatique des Trains entre Neuchâtel et La Chaux-de-Fonds, Guillaume Sauvin (Civil Engineering)

Supervision: Daniel Emery
L'European Train Control System Level 2 (ETCS_L2) autorise la conduite automatique des trains via le "paquet 44". Le projet consiste � introduire dans ce "paquet" l'ensemble des instructions n�cessaires pour aller, en conduite automatique, de A � B tout en conservant un conducteur � bord (GoA2). Le parcours entre Neuch�tel et La Chaux-de-Fonds via un nouveau trac� servira de "d�monstrateur".

Offre nationale ferroviaire 2035 avec tronçons SwissMetro, Lauriane Masson (Civil Engineering)

Supervision: Daniel Emery
Un projet d'horaire ferroviaire national 2035 a �t� publi� avec les am�nagements des infrastructures n�cessaires exploiter un tel horaire. Le projet consiste � d�velopper des variantes de r�alisation de tron�ons SwissMetro. Pour chacune de ces variantes il sera recens� les am�nagement d'infrastructure pr�vus devenant superflus d'une part, et le projet d'horaire 2035 sera alors adapt� � la pr�sence de ces tron�ons d'autre part. Les avantages/inconv�nients de chaque variante seront compar�s, le projet d'am�nagement 2035 et l'horaire 2035 sans SwissMetro servant de r�f�rence.

2017-2018

Usage d'un sous-cantonnement pour densifier la circulation aux abords d'un noeud ferroviaire important, Cloé Lafaye

Supervision: Daniel Emery
Le projet consiste, sur un d�coupage des cantons en sous-cantons virtuels, � faire circuler plusieurs combinaisons de trains � signalisation lat�rale et de trains � signalisation en cabine (ETCS_L2/3) pour d�terminer les gains en d�bit pouvant �tre attendus.

2018

Offre nationale ferroviaire 2035 avec un tronçon SwissMetro, Lauriane Masson (Civil Engineering)

Supervision: Daniel Emery
Le projet consiste, notamment, � d�velopper des sc�narios de r�seau pour le mode de transport SwissMetro, � en d�finir les caract�ristiques principales ainsi qu'un ordre de priorit� de r�alisation des tron�ons. Dans une seconde �tape, l'horaire GK12 sera adapt� pour tenir compte de la pr�sence du tron�on-pilote du(des) sc�nario(s) le(s) plus prometteur(s). Une comparaison exhaustive des avantages/inconv�nients des horaires GK12 original et GK12 modifi�(s) cl�turera ce travail.

Augmentation de la réserve de capacité m1 des TL par actions limitées au matériel roulant, David Moy de Vitry (Civil Engineering)

Supervision: Daniel Emery
Le m�tro m1 des Transports Publics Lausannois (TL) relie le Centre-Ville de Lausanne � la Gare de Renens situ�e dans l'Ouest Lausannois en passant notamment par l'Universit� (UNIL) et l'�cole Polytechnique F�d�rale de Lausanne (EPFL). En heure de pointe en p�riode estudiantine il circule avec des intervalles de 5 minutes, soit les intervalles les plus faibles possibles compte tenu de l'infrastructure actuelle � simple voie. Depuis de nombreuses ann�e, de nombreuses mesures touchant la demande ont �t� prises en vue de r�duire les pointes afin de d�-saturer cette ligne (d�calage des heures de d�but de cours entre UNIL et EPFL, nouvelle ligne de bus passant par Renens-Gare et les Hautes �coles, �). Toutefois, avec la croissance continue de la population se rendant sur les sites universitaires, la saturation se profile � moyen terme. Cette pr�-�tude de master quantifiera l'apport des moyens d'actions pour accro�tre la capacit� du mat�riel roulant sans avoir a modifier l'infrastructure.

Qualité de l'offre nationale des projets d'horaire EA2030 et EA2035, Zora Oswald (Civil Engineering)

Supervision: Daniel Emery
Des deux projets d'horaire nationaux (EA2030 et EA2035) sont � disposition des d�cideurs pour choisir entre deux variantes d'am�nagement du r�seau ferroviaires suisse. Le projet consiste � notamment � �valuer la qualit� de l'offre nationale offerte par ces projets en terme de temps de parcours et de fr�quence, l'horaire 2018 servant de r�f�rence. Les valeurs absolues et relatives des crit�res retenus (temps de parcours, fr�quence, nombre de correspondance, ...) seront notamment dispos�es sous la forme de matrice OD, chaque O(resp. D) �tant une gare significative sur la plan d�mographique et politique (p.ex. chef-lieu de canton)

2017-2018

Infrastructure ferroviaire entre Lausanne et Genève à l'horizon 2030, Cloé Lafaye et Julien Thiriot (Civil Engineering)

Supervision: Daniel Emery
Le projet consiste � d�terminer les infrastructures n�cessaires et les horaires possibles sur la ligne Lausanne-Gen�ve � l'horizon 2030. Un projet d'offre 2030 pr�voit pas moins de dix paires de trains voyageurs (4 IC, 2 IR, 4 RE). L'OFT pour sa part souhaite qu'une paire de trains marchandises au minimum puisse circuler chaque heure.

Offre 2030 entre Berne et Lausanne répondant aux attentes des cantons (BE, FR et VD), Benoît Corday (Civil Engineering)

Supervision: Daniel Emery

Aménagements futurs du complexe ferroviaire de Clermont-Ferrand, Axel Valentin (Civil Engineering)

Supervision: Daniel Emery
Le travail consiste premi�rement � �tablir un �tat des lieux (plan et caract�ristiques des voies, postes d�aiguillages, IFTE, GOV, types de mouvements et volum�trie, roulements de mat�riel, �quipements de maintenance et de remisage, etc.) Une analyse de l�ad�quation des �quipements aux besoins engendr�s par le remplacement des rames tract�es par des rames automotrices sera alors men�e; et d��ventuelles mesures seront propos�es. Si le temps le permet, les cons�quences sur les GOV de Clermont seront estim�es si un sc�nario ambitieux d��lectrification devait voir le jour autour de Clermont (Volvic/Le Cendre/Aulnat). de r�f�rence.

Mobilité lors des JO d’hiver et perspectives pour Sion 2026, Clément Sintes (Civil Engineering)

Supervision: Daniel Emery
La pr�-�tude se propose premi�rement de recenser les d�marches d�organisation de la mobilit� lors de JO pr�sent�es par les villes candidates r�centes, notamment Sion 2002 et Torino 2006, et de d�terminer et de r�colter les valeurs dimensionnantes de mobilit� en lien avec les diff�rentes disciplines sportives. Dans une seconde partie, la pr�-�tude se focalisera sur le cas de la ville candidate Sion 2026. Elle pr�sentera en particulier un panorama de l�offre TP actuelle pour atteindre actuellement les sites retenus, ainsi que l�offre envisag�e par le programme PRODES 2025. Le Projet De Master (PDM) proprement dit cherchera premi�rement � atteindre les objectifs de la pr�-�tude non totalement atteints. Son objectif principal sera de g�n�rer des concepts d�offre TC, voire m�me des variantes d�horaires. Les lignes � �tudier plus particuli�rement seront choisies en f�vrier 2018. La liste de ces lignes, non exhaustive, comporte notamment les lignes � ext�rieures � (�Olympic Ring�, raccords aux a�roports internationaux GVA et ZRH) et les lignes � int�rieures � au Valais (Brig-Ulrichen, Martigny-Le Ch�ble,).

2017

Organisation de l’amélioration de la performance de l’offre ferroviaire dans les métropoles d’Auvergne Rhône Alpes: Retour d’expérience du nœud ferroviaire lyonnais et enseignements à tirer pour les autres métropoles, Jean-Baptiste Landes (Civil Engineering)

Supervision: Daniel Emery
L��tat fran�ais et SNCF R�seau ont sign� un contrat de performance permettant de donner une trajectoire financi�re pour la d�cennie � venir et qui demande d�organiser l�am�lioration de la performance, notamment de la r�gularit�. D�autre part, dans le cadre de Sch�ma R�gionaux d�Am�nagement, de D�veloppement Durable et d�Egalit� des Territoires (SRADDET), SNCF R�seau entend positionner l�infrastructure ferroviaire comme v�ritable pivot de la mobilit� au niveau r�gional. L��tude (pr�-�tude et travail pratique de Master) doit permettre de s�approprier les m�thodes de travail utilis�es pour le NFL ( audit, diagnostic, bilan des circulations, mobilisation des acteurs internes ou externes �) et les outils correspondants permettant � tous les acteurs de participer � l�am�lioration de la performance en appliquant des plans d�action � court et moyen terme ( organisation du projets, identification des phases d�cisives, formalisation ders plans d�action, ...) Une analyse dans la coh�rence des plans d�action court terme mais �galement long terme sera d�velopp� en prenant en compte la stabilit� des �volutions des hypoth�ses de l�offre ferroviaire. La m�thode de travail ainsi conceptualis�e par un travail personnel et autonome et une reformulation des facteurs cl�s de succ�s et les outils correspondants seront appliqu�s, � titre de � d�monstration � pour la m�tropole grenobloise ou clermontoise. Des plans d�actions � court, moyen et long terme seront d�duits et propos�s

2016-2017

Mobilité Rail+Bus 2020 dans les Alpes vaudoises, David Moy de Vitry Jean-Baptiste Landes

Supervision: Daniel Emery
Une communaut� d��tudes, comprenant notamment la CITAV, a �tudi� de mani�re globale un territoire g�ographique appel� � Alpes vaudoises 2020 �. Le volet mobilit� n�a �t� trait� que de mani�re globale, tel que l�on peut notamment le constater dans le rapport final de juillet 2013. Apr�s lecture attentive des documents � Alpes vaudoises 2020 � et des horaires actuels, les �tudiants d�velopperont et �valueront des variantes d�offre Rail+Bus sur la base du projet d�horaire trains 2025 le plus actuel.

Régulation de vitesse par la signalisation pour garantir un croisement actif, Benoît Corday Marc Zimmermann

Supervision: Daniel Emery
Dans le cadre de la densification d�horaires cadenc�s sur lignes � simple voie, il y a souvent n�cessit� que les trains se croisent hors gare. Il est donc int�ressant de pr�voir un �lot de croisement actif, c�est-�-dire sans qu�aucun des deux trains n�ait besoin de s�arr�ter. L'�tude consiste premi�rement � �tablir une d�marche pour �tablir les diff�rentes topologies devant �tre �tudi�es. Dans la partie principale, le projet consistera � faire varier de mani�re syst�matique et logique, sur un tron�on de ligne suisse � voie �troite fictif, la vitesse de ligne, la longueur de l'ilot � deux voies, les endroits de d�tection des trains, les endroits de r�duction de la vitesse pour le train en avance sur l'autre, et la valeur de cette(ces) r�duction(s) de vitesse. La signalisation sera de type lat�ral � trois aspects avec, si besoin, chiffre compl�mentaire d'annonce ou d'ex�cution de vitesse. L'outil de simulation OpenTrack sera utilis�.

2016

Étude détaillée des contours de référence ferroviaires et dérogations, Martin Ellwanger (Civil Engineering)

Supervision: Daniel Emery
Dans le cadre du projet Clip-Air (http://clipair.epfl.ch/) il est envisag� d'acheminer des capsules par le rail. La pr�-�tude au projet de Master consiste � �tudier tr�s pr�cis�ment les gabarits de r�f�rence ferroviaires pour voie � �cartement UIC tant au niveau suisse, qu'europ�en et am�ricain non seulement en alignement mais aussi en courbe. Les relations avec les gabarits limites des obstacles seront mises en �vidence. Les proc�dures suisses pour les transports exceptionnels par rail sur voie � �cartement UIC seront d�crites.

Laurent Daudet

Laurent Daudet has been a member of the laboratory from May 01, 2016 to Jun 30, 2016

Constantinos Antoniou

Constantinos Antoniou has been a member of the laboratory from Feb 01, 2016 to Apr 01, 2016

Bernard Gendron

Bernard Gendron has been a member of the laboratory from Jan 15, 2016 to Nov 03, 2016

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Bernard Gendron.

Journal articles

2022

Pacheco M., Gendron B., Sharif Azadeh S., Bierlaire M. (2022). A Lagrangian decomposition scheme for choice-based optimization. Computers & Operations Research 148 :105985


@Article{PachGendSharBier22,
  author = {Meritxell Pacheco and Bernard Gendron and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {A Lagrangian decomposition scheme for choice-based optimization},
  journal = {Computers \& Operations Research},
  year = {2022},
  volume = {148},
  pages = {105985},
  DOI = {10.1016/j.cor.2022.105985},
  note = {Accepted on Jul 29, 2022}}}

Technical reports

2021

Pacheco M., Gendron B., Sharif Azadeh S., Bierlaire M. (2021). A Lagrangian decomposition scheme for choice-based optimization. Report TRANSP-OR 210827


@TechReport{PachGendSharBier21,
  author = {Meritxell Pacheco and Bernard Gendron and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {A Lagrangian decomposition scheme for choice-based optimization},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2021},
  type = {Technical Report},
  number = {TRANSP-OR 210827},
  address = {Lausanne, Switzerland}}}

2017

Pacheco M., Sharif Azadeh S., Bierlaire M., Gendron B. (2017). Integrating advanced discrete choice models in mixed integer linear optimization. Report TRANSP-OR 170714


@TechReport{PacShaBieGen2017,
  author = {Meritxell Pacheco and Shadi {Sharif Azadeh} and Michel Bierlaire and Bernard Gendron},
  title = {Integrating advanced discrete choice models in mixed integer linear optimization},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2017},
  type = {Technical Report},
  number = {TRANSP-OR 170714},
  address = {Lausanne, Switzerland}}}

Articles in conference proceedings

2018


@InProceedings{PacGenLurShaBie_STRC2018,
  author = {Meritxell Pacheco and Bernard Gendron and Virginie Lurkin and Shadi {Sharif Azadeh} and Michel Bierlaire},
  title = {A Lagrangian relaxation technique for the demand-based benefit maximization problem},
  booktime = {Proceedings of the 18th Swiss Transport Research Conference (STRC), 16-18 May},
  year = {2018},
  address = {Ascona, Switzerland}}}

2017


@InProceedings{PacShaBieGen_STRC2017,
  author = {Meritxell Pacheco and Shadi {Sharif Azadeh} and Michel Bierlaire and Bernard Gendron},
  title = {Integrating advanced demand models within the framework of mixed integer linear problems: A Lagrangian relaxation method for the uncapacitated case},
  booktime = {Proceedings of the 17th Swiss Transport Research Conference (STRC), 17-19 May},
  year = {2017},
  address = {Ascona, Switzerland}}}

EPFL courses

Spring 2016

Decomposition for network design.
- Level: PhD
- Section: Doctoral program in Civil and Environmental Engineering
- Lecturer: Bernard Gendron
- Webpage: http://transp-or.epfl.ch/courses/Gendron2016/index.php

Aiste Ruseckaite

Aiste Ruseckaite has been a member of the laboratory from Nov 30, 2015 to Feb 29, 2016

Pascal Scheiben

Pascal Scheiben has been a member of the laboratory from Mar 01, 2014 to Aug 30, 2014

Sofia Kalakou

Sofia Kalakou has been a member of the laboratory from Dec 01, 2013 to May 31, 2014

Hainan Hu

Hainan Hu has been a member of the laboratory from Apr 01, 2013 to Jun 30, 2013

Xinjun Lai

Xinjun Lai has been a member of the laboratory from Mar 15, 2013 to Mar 14, 2014

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Xinjun Lai.

Journal articles

2015

Lai X., Bierlaire M. (2015). Specification of the cross-nested logit model with sampling of alternatives for route choice models. Transportation Research Part B: Methodological 80 :220-234

We present an operational estimation procedure for the estimation of route choice multivariate extreme value (MEV) models based on sampling of alternatives. The procedure builds on the state-of-the-art literature, and in particular on recent methodological developments proposed by Flötteröd and Bierlaire (2013) and Guevara and Ben-Akiva (2013b). Case studies on both synthetic data and a real network demonstrate that the new method is valid and practical.
```
@Article{LaiBier15,
  author = {Xinjun Lai and Michel Bierlaire},
  title = {Specification of the cross-nested logit model with sampling of alternatives for route choice models},
  journal = {Transportation Research Part B: Methodological},
  year = {2015},
  volume = {80},
  pages = {220-234},
  DOI = {10.1016/j.trb.2015.07.005},
  note = {Accepted on Jul 04, 2015}}}
```

Technical reports

2014

Lai X., Bierlaire M. (2014). Specification of the cross nested logit model with sampling of alternatives for route choice models. Report TRANSP-OR 140602


@TechReport{LaiBier14,
  author = {Xinjun Lai and Michel Bierlaire},
  title = {Specification of the cross nested logit model with sampling of alternatives for route choice models},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2014},
  type = {Technical Report},
  number = {TRANSP-OR 140602},
  address = {Lausanne, Switzerland}}}

Talks

2013

Lai X., Jun L. Paired Route Impedance Correction for Multinomial Logit Model Based on Equivalent Impedance May 31, 2013. Workshop on Discrete Choice Models, Lausanne, Switzerland.


@Misc{LaiDCA,
  author = {Xinjun Lai and Li Jun},
  title = {Paired Route Impedance Correction for Multinomial Logit Model Based on Equivalent Impedance},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/LaiDCA.pdf}},
  year = {2013},
  note = {Presented at Workshop on Discrete Choice Models, Lausanne, Switzerland}}}

Maëlle Zimmermann

Maëlle Zimmermann has been a member of the laboratory from Feb 01, 2013 to Mar 31, 2013

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Maëlle Zimmermann.

Various lectures

2018

Logit Mixture; Hybrid Choice Models.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 14, 2018
- Lecturer: Meritxell Pacheco
- Assistants: Anna Fernandez Antolin, Yuki Oyama, Ma�lle Zimmermann
Forecasting; Combining RP & SP.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 13, 2018
- Lecturer: Meritxell Pacheco
- Assistants: Anna Fernandez Antolin, Yuki Oyama, Ma�lle Zimmermann
Specification Testing; Nested Logit.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 12, 2018
- Lecturer: Anna Fernandez Antolin
- Assistants: Meritxell Pacheco, Yuki Oyama, Ma�lle Zimmermann
Introduction; Logit Estimation.
- Discrete Choice Analysis: Predicting Demand and Market Shares, EPFL, Lausanne, Switzerland
- Feb 11, 2018
- Lecturer: Anna Fernandez Antolin
- Assistants: Meritxell Pacheco, Yuki Oyama, Ma�lle Zimmermann

Jean-Benoît Rossel

Jean-Benoît Rossel has been a member of the laboratory from Jul 30, 2012 to Sep 07, 2012

Personal webpage

Nicolas Anken

Nicolas Anken has been a member of the laboratory from Jul 09, 2012 to Aug 17, 2012

My Hang Nguyen

My Hang Nguyen has been a member of the laboratory from Jul 01, 2012 to Aug 31, 2012

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by My Hang Nguyen.

Journal articles

2014

Hurtubia R., Nguyen M., Glerum A., Bierlaire M. (2014). Integrating psychometric indicators in latent class choice models. Transportation Research Part A: Policy and Practice 64 :135-146


@Article{HuNgGlBi_2014,
  author = {Ricardo Hurtubia and {My Hang} Nguyen and Aur\'elie Glerum and Michel Bierlaire},
  title = {Integrating psychometric indicators in latent class choice models},
  journal = {Transportation Research Part A: Policy and Practice},
  year = {2014},
  volume = {64},
  pages = {135-146},
  DOI = {10.1016/j.tra.2014.03.010},
  note = {Accepted on Mar 11, 2014}}}

Technical reports

2013

Hurtubia R., Nguyen M., Glerum A., Bierlaire M. (2013). Integrating psychometric indicators in latent class choice models. Report TRANSP-OR 130423


@TechReport{HuNgGlBi_2013,
  author = {Ricardo Hurtubia and {My Hang} Nguyen and Aur\'elie Glerum and Michel Bierlaire},
  title = {Integrating psychometric indicators in latent class choice models},
  institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
  year = {2013},
  type = {Technical Report},
  number = {TRANSP-OR 130423},
  address = {Lausanne, Switzerland}}}

Dimitrios Efthymiou

Dimitrios Efthymiou is not at transp-or anymore, member of the laboratory since Sep 01, 2011

This page reports only the academic work registered in the databases of the Transport and Mobility Laboratory, and is not necessarily a comprehensive list of the work by Dimitrios Efthymiou.

Journal articles

2014


@Article{AndeFaroEfthBier15,
  author = {Paul Anderson and Bilal Farooq and Dimitrios Efthymiou and Michel Bierlaire},
  title = {Association Generation in Synthetic Population for Transportation Applications: Graph-Theoretic Solution },
  journal = {Transportation Research Record},
  year = {2014},
  volume = {2429},
  pages = {38-50},
  DOI = {10.3141/2429-05},
  note = {Accepted on Feb 14, 2014}}}

Efthymiou D., Farooq B., Bierlaire M., Antoniou C. (2014). Multidimensional Indicator Analysis for Transport Policy Evaluation. Transportation Research Record 2430


@Article{EfthFarrBierAnto15,
  author = {Dimitrios Efthymiou and Bilal Farooq and Michel Bierlaire and Constantinos Antoniou},
  title = {Multidimensional Indicator Analysis for Transport Policy Evaluation},
  journal = {Transportation Research Record},
  year = {2014},
  volume = {2430},
  DOI = {10.3141/2430-09},
  note = {Accepted on Feb 14, 2014}}}

Efthymiou D., Kaziales M., Antoniou C., Tyrinopoulos Y. (2014). Measuring the Effects of Economic Crisis on Users' Perceptions of Public Transport Quality. Transportation Research Record 2415 :1-12


@Article{EfthKaziAntoTyri14,
  author = {Dimitrios Efthymiou and M. Kaziales and Constantinos Antoniou and Y. Tyrinopoulos},
  title = {Measuring the Effects of Economic Crisis on Users' Perceptions of Public Transport Quality},
  journal = {Transportation Research Record},
  year = {2014},
  volume = {2415},
  pages = {1-12},
  DOI = {10.3141/2415-01}}}

2013

Efthymiou D., Antoniou C. (2013). How do Transport Infrastructure and Policies Affect House Prices and Rents? Evidence from Athens, Greece. Transportation Research Part A: Policy and Practice 52 :1-22


@Article{EfthymiouTRPartA2013,
  author = {Dimitrios Efthymiou and Constantinos Antoniou},
  title = {How do Transport Infrastructure and Policies Affect House Prices and Rents? Evidence from Athens, Greece},
  journal = {Transportation Research Part A: Policy and Practice},
  year = {2013},
  volume = {52},
  pages = {1-22},
  DOI = {10.1016/j.tra.2013.04.002},
  note = {Accepted on Apr 22, 2013}}}

Samoili S., Efthymiou D., Antoniou C., Dumont A. (2013). Investigation of Lane Flow Distribution on Hard Shoulder Running Freeways. Transportation Research Record 2396 :133-142


@Article{DEfthymTRR2013,
  author = {Sophia Samoili and Dimitrios Efthymiou and Constantinos Antoniou and Andr\'e-Gilles Dumont},
  title = {Investigation of Lane Flow Distribution on Hard Shoulder Running Freeways},
  journal = {Transportation Research Record},
  year = {2013},
  volume = {2396},
  pages = {133-142},
  DOI = {10.3141/2396-15},
  note = {Accepted on Oct 02, 2012}}}

Efthymiou D., Antoniou C. (2013). Measuring the Effects of Transportation Infrastructure Location on Real Estate Prices and Rents. Investigating the Potential Current Impact of a Planned Metro Line. EURO Journal on Transportation and Logistics:1-26


@Article{DEfthymEJTL2013,
  author = {Dimitrios Efthymiou and Constantinos Antoniou},
  title = {Measuring the Effects of Transportation Infrastructure Location on Real Estate Prices and Rents. Investigating the Potential Current Impact of a Planned Metro Line},
  journal = {EURO Journal on Transportation and Logistics},
  year = {2013},
  pages = {1-26},
  DOI = {10.1007/s13676-013-0030-4}}}

Efthymiou D., Antoniou C., Waddell P. (2013). Factors affecting the adoption of vehicle sharing systems by young drivers. Transport Policy 29 ():64�73

Transportation patterns in big cities are redefined by the growing trend of car ownership and usage costs (e.g. the initial cost of buying a car, the constantly growing fuel prices, additional maintenance and insurance costs and the increased parking demand and time of travel). Under these circumstances, the demand for alternative vehicle-sharing transportation modes, such as carsharing or bikesharing, increases. Companies and authorities planning to develop such schemes need to know the factors driving their adoption, so that they can optimally position these services in a cost-effective way that will maximize their use. In this paper, the results of an on-line survey that was conducted in Greece, a country where carsharing is effectively non-existent and bikesharing is just emerging, are presented and analyzed. Given the nature of the survey and the fact that younger people are the most likely target audience for these services, the analysis focuses on data from the age group 18–35 years old. A factor analysis of the advantages and disadvantages of car and bike-ownership is performed, so as to reveal any latent correlation between the different variables, while the factors affecting the adoption of carsharing and bikesharing schemes are analyzed descriptively. Ordered logit models capturing the willingness of the respondents to progressively join these schemes are also estimated. The model results suggest that respondents with annual income between 15 K and 25 K Euros are more likely to join carsharing or bikesharing systems when they become available in Greece. Carsharing is also expected to mainly attract people that use bus, trolley or tram for their commute, while bikesharing is more likely to attract those who go on foot. Age is also a significant determinant of joining bikesharing, with respondents in the 26–35 years age group being more reluctant than younger ones. Finally, the more environmentally conscious the respondent declares that (s)he is, the more possible it is that (s)he will join one of the two schemes.
```
@Article{EfthymiouTPolicy2013,
  author = {Dimitrios Efthymiou and Constantinos Antoniou and Paul Waddell},
  title = {Factors affecting the adoption of vehicle sharing systems by young drivers},
  journal = {Transport  Policy},
  year = {2013},
  volume = {29},
  pages = {64{\textendash}73},
  DOI = {10.1016/j.tranpol.2013.04.009}}}
```

2012

Efthymiou D., Antoniou C., Tyrinopoulos I. (2012). Spatially-aware optimal site selection. Method and Application in Mobility Center in Greece. Transportation Research Record 2276 :146-155


@Article{DEfthymTRR2012,
  author = {Dimitrios Efthymiou and Constantinos Antoniou and Ioannis Tyrinopoulos},
  title = {Spatially-aware optimal site selection. Method and Application in Mobility Center in Greece},
  journal = {Transportation Research Record},
  year = {2012},
  volume = {2276},
  pages = {146-155},
  DOI = {10.3141/2276-18},
  note = {Accepted on Feb 13, 2012}}}

Articles in conference proceedings

2013

Samoili S., Efthymiou D., Antoniou C., Dumont A. (2013) Lane Flow Distribution Investigation of Hard Shoulder Running Freeways. Proceedings of the 92nd Annual Meeting of the Transportation Research BoardJanuary 13-17, Washington D. C., USA


@InProceedings{DEfthymTRB2013,
  author = {Sophia Samoili and Dimitrios Efthymiou and Constantinos Antoniou and Andr\'e-Gilles Dumont},
  title = {Lane Flow Distribution Investigation of Hard Shoulder Running Freeways},
  booktime = {Proceedings of the 92nd Annual Meeting of the Transportation Research Board, January 13-17},
  year = {2013},
  address = {Washington D. C., USA}}}

Efthymiou D., Derebouka E., Antoniou C. (2013) Factors affecting the adoption of carsharing by young Greek drivers (in Greek). Proceedings of the International Congress in Transportation Research (ICTR), November, Thessaloniki, Greece


@InProceedings{DEfthymiou_ICTR_1013,
  author = {Dimitrios Efthymiou and Efi Derebouka and Constantinos Antoniou},
  title = {Factors affecting the adoption of carsharing by young Greek drivers (in Greek)},
  booktime = {Proceedings of the International Congress in Transportation Research (ICTR), November},
  year = {2013},
  address = {Thessaloniki, Greece}}}


@InProceedings{EfthymiouSTRC2013a,
  author = {Dimitrios Efthymiou and Ricardo Hurtubia and Michel Bierlaire and Constantinos Antoniou},
  title = {The Integrated Land Use and Transport Model of Brussels},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), April 24-26},
  year = {2013},
  address = {Ascona, Switzerland}}}


@InProceedings{EfthymiouSTRC2013b,
  author = {Dimitrios Efthymiou and Bilal Farooq and Michel Bierlaire and Constantinos Antoniou},
  title = {Agent Based Indicators Analysis in the Context of Policy Evaluation},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), April 24-26},
  year = {2013},
  address = {Ascona, Switzerland}}}

Samoili S., Efthymiou D., Antoniou C., Dumont A. (2013) Short term prediction models and calibration for managed lanes. Proceedings of the Swiss Transport Research Conference (STRC), April 24-26, Ascona, Switzerland


@InProceedings{SamoiliSTRC2013,
  author = {Sophia Samoili and Dimitrios Efthymiou and Constantinos Antoniou and Andr\'e-Gilles Dumont},
  title = {Short term prediction models and calibration for managed lanes},
  booktime = {Proceedings of the Swiss Transport Research Conference (STRC), April 24-26},
  year = {2013},
  address = {Ascona, Switzerland}}}

2012

Efthymiou D., Antoniou C. (2012) Levereging Crowd-Sourced Road Defect Information for Road Quality Assessment. Proceedings of the 5th Pan-hellenic Road Safety ConferenceOctober 25-26, Volos, Greece


@InProceedings{DEfthymVolos,
  author = {Dimitrios Efthymiou and Constantinos Antoniou},
  title = {Levereging Crowd-Sourced Road Defect Information for Road Quality Assessment},
  booktime = {Proceedings of the 5th Pan-hellenic Road Safety Conference, October 25-26},
  year = {2012},
  address = {Volos, Greece}}}

Efthymiou D., Antoniou C. (2012) How does Transport Infrastructure Affect Dwelling Prices in Athens?. Proceedings of the 1st European Symposium on Quantitative Methods in Transportation Systems (LATSIS 2012), September 4-7, Lausanne, Switzerland


@InProceedings{DEfthymLatsis,
  author = {Dimitrios Efthymiou and Constantinos Antoniou},
  title = {How does Transport Infrastructure Affect Dwelling Prices in Athens?},
  booktime = {Proceedings of the 1st European Symposium on Quantitative Methods in Transportation Systems (LATSIS 2012), September 4-7},
  year = {2012},
  address = {Lausanne, Switzerland}}}

Efthymiou D., Antoniou C. (2012) Use of Social Media for Transport Data Collection. Proceedings of the Transportation Research Arena (TRA 2012), April 23-26, Athens, Greece


@InProceedings{DEfthymTRA2012,
  author = {Dimitrios Efthymiou and Constantinos Antoniou},
  title = {Use of Social Media for Transport Data Collection},
  booktime = {Proceedings of the Transportation Research Arena (TRA 2012), April 23-26},
  year = {2012},
  address = {Athens, Greece}}}

Efthymiou D., Antoniou C., Tyrinopoulos I., Mitsakis E. (2012) Spatial Exploration of Effective Electric Vehicle Infrastructure Location. Proceedings of the Transportation Research Arena (TRA 2012), April 23-26, Athens, Greece


@InProceedings{DEfthymTRA2012_2,
  author = {Dimitrios Efthymiou and Constantinos Antoniou and Ioannis Tyrinopoulos and Evangelos Mitsakis},
  title = {Spatial Exploration of Effective Electric Vehicle Infrastructure Location},
  booktime = {Proceedings of the Transportation Research Arena (TRA 2012), April 23-26},
  year = {2012},
  address = {Athens, Greece}}}

Theofilatos A., Efthymiou D. (2012) Investigation of Pedestrian�s Accident Patterns in Attica. Proceedings of the Transportation Research Arena (TRA 2012), April 23-26, Athens, Greece


@InProceedings{DefthymTRA2012_3,
  author = {Athanasios Theofilatos and Dimitrios Efthymiou},
  title = {Investigation of Pedestrian{\textquoteright}s Accident Patterns in Attica},
  booktime = {Proceedings of the Transportation Research Arena (TRA 2012), April 23-26},
  year = {2012},
  address = {Athens, Greece}}}

Efthymiou D., Antoniou C., Waddell P. (2012) Which Factors Affect Willingness to Join Vehicle Sharing Systems? Evidence from Young Greek Drivers. Proceedings of the 91st Annual Meeting of the Transportation Research Board (TRB 2012), January 22-26, Washington D. C., USA


@InProceedings{DEfthymTRB2012_1,
  author = {Dimitrios Efthymiou and Constantinos Antoniou and Paul Waddell},
  title = {Which Factors Affect Willingness to Join Vehicle Sharing Systems? Evidence from Young Greek Drivers},
  booktime = {Proceedings of the 91st Annual Meeting of the Transportation Research Board (TRB 2012), January 22-26},
  year = {2012},
  address = {Washington D. C., USA}}}

Efthymiou D., Antoniou C., Tyrinopoulos I. (2012) Spatially-Aware Optimal Site Selection. Method and Application in Mobility Center in Greece. Proceedings of the 91st Annual Meeting of the Transportation Research Board (TRB 2012), January 22-26, Washington D. C., USA


@InProceedings{DEfthymTRB2012_2,
  author = {Dimitrios Efthymiou and Constantinos Antoniou and Ioannis Tyrinopoulos},
  title = {Spatially-Aware Optimal Site Selection. Method and Application in Mobility Center in Greece},
  booktime = {Proceedings of the 91st Annual Meeting of the Transportation Research Board (TRB 2012), January 22-26},
  year = {2012},
  address = {Washington D. C., USA}}}

2011

Efthymiou D., Antoniou C. (2011) Transport Telematics Applications for Carsharing and Bikesharing Systems. Proceedings of the Intelligent Transportation Systems (ITS 2011), October 23-24, Patra, Greece


@InProceedings{DEfthymPatra2011,
  author = {Dimitrios Efthymiou and Constantinos Antoniou},
  title = {Transport Telematics Applications for Carsharing and Bikesharing Systems},
  booktime = {Proceedings of the Intelligent Transportation Systems (ITS 2011), October 23-24},
  year = {2011},
  address = {Patra, Greece}}}

Talks

2013

Efthymiou D., Antoniou C. Modeling the willingness to join carsharing using latent class discrete choice models and mixed internet/paper survey data May 31, 2013. Workshop on Discrete Choice Models, Lausanne, Switzerland.


@Misc{EfthymiouDCA,
  author = {Dimitrios Efthymiou and Constantinos Antoniou},
  title = {Modeling the willingness to join carsharing using latent class discrete choice models and mixed internet/paper survey data},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/EfthymiouDCA.pdf}},
  year = {2013},
  note = {Presented at Workshop on Discrete Choice Models, Lausanne, Switzerland}}}

Efthymiou D., Farooq B., Bierlaire M., Antoniou C. Agent-Based Indicators Analysis in the Context of Policy Evaluation: Preliminary Findings May 24, 2013. Workshop on Land-Use Transport Interaction Models, Paris, France.


@Misc{EfthymiouLUTIParis,
  author = {Dimitrios Efthymiou and Bilal Farooq and Michel Bierlaire and Constantinos Antoniou},
  title = {Agent-Based Indicators Analysis in the Context of Policy Evaluation: Preliminary Findings },
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/EfthymiouLUTIParis.pdf}},
  year = {2013},
  note = {Presented at Workshop on Land-Use Transport Interaction Models, Paris, France}}}

Efthymiou D., Antoniou C. Opportunistic Transport Data Collection January 15, 2013. 92nd Annual Meeting of the Transportation Research Board, Washington D.C..


@Misc{DEfthymTRB2013Sem,
  author = {Dimitrios Efthymiou and Constantinos Antoniou},
  title = {Opportunistic Transport Data Collection},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/DEfthymTRB2013Sem.pdf}},
  year = {2013},
  note = {Presented at 92nd Annual Meeting of the Transportation Research Board, Washington D.C.}}}

2012

Efthymiou D., Wissen U. Sustainable UrbanPatterns (SUPat) November 23, 2012. Workshop of National Research programme NRP 65 "New Urban Quality", Zurich.


@Misc{DEfthymSUPAT,
  author = {Dimitrios Efthymiou and Ulrike Wissen},
  title = {Sustainable UrbanPatterns (SUPat)},
  howpublished = {\url{https://transp-or.epfl.ch/documents/talks/DEfthymSUPAT.pdf}},
  year = {2012},
  note = {Presented at Workshop of National Research programme NRP 65 \"New Urban Quality\", Zurich}}}

Research projects

2010

NRP 65: Sustainable Urban Patterns (SUPat)

This project aims at developing methodologies for the integration of qualitative an quantitative tools for land use planning and urban project-evaluation . The methodology will allow the interaction between urban design experts and land use modelers, developing techniques to use the description of urban projects and policies as inputs for land use models like UrbanSim and transport models like MATSim. The modeling effort output is used as input for the experts, generating an iterative feedback.
- Oct 01, 2010 - Sep 30, 2013
- Sponsor: Swiss National Science Foundation
- Principal investigator: Michel Bierlaire
- Project managers: Bilal Farooq, Ricardo Hurtubia
- Collaborator: Dimitrios Efthymiou
SustainCity: Micro-simulation for the prospective of sustainable cities in Europe

The goal of this project is to address the modelling and computational issues of integrating modern mobility simulations with the latest micro-simulation land use models. The project intends to advance the state-of-the-art in the field of the micro-simulation of prospective integrated models of Land-Use and Transport (LUTI). On the modelling side, the main challenges are to integrate a demographic evolution module, to add an environmental module, to improve the overall consistency and, last but not least, to deal with the multi-scale aspects of the problem: several time horizons and spatial resolutions are involved.
- Jan 01, 2010 - Dec 31, 2012
- Sponsor: European Commission
- Principal investigator: Michel Bierlaire
- Project managers: Ricardo Hurtubia, Bilal Farooq
- Collaborator: Dimitrios Efthymiou

Semester projects

2013

Associations generation in synthetic population, Paul Anderson

Supervision: Bilal Farooq, Dimitrios Efthymiou
In recent years significant advancements have been made in the research related to agent based urban systems modelling, especially in the area of activity based large scale travel demand models. Synthesis of different types of agents (person, family, and household) is an integral part of the input preparation for such models and micosimulations. In addition to agents generation, these recent developments also require synthesizing associations between different types of agents. For instance, which individual person is married to whom, who is the father of a 7 years old male going to a particular school, etc. Such information is very useful in realistic modelling and microsimulation of short term decisions like who gets to take the car for work and long term decisions for instance, what type of dwelling a particular household will buy. A Markov chain Monte Carlo simulation based agents synthesis approach has been proposed by Farooq et al. (2012). At core, the approach used Gibbs sampler to draw from the joint distribution of agent attributes using the available data. Among other advantages, they also demonstrated that the approach can reproduce the joint distribution better than the conventional fitting based approaches. Here we extend the simulation based synthesis approach so that it can also generate the association among drawn agents of different types. Required skill set: Experience in data analysis and pre-processing; probability and statistic; coding in Java or C#