Concept

Discrete choice

Publications associées (141)

Solving issues in the estimation of econometric models

Michel Bierlaire, Michaël Clément Louis Ghislain Thémans

Econometric models play an important role in transportation analysis. Estimating more and more complex models becomes problematic. The associated log-likelihood function is highly nonlinear and non concave and the comlexity of the model requires constraint ...

STRC 20062006

Solving singularity issues in the estimation of econometric models

Michel Bierlaire, Michaël Clément Louis Ghislain Thémans

2006

Normalization and correlation of cross-nested logit models

Michel Bierlaire, Emmanuel Abbé

Demand analysis is more and more critical in the transportation context. Discrete choice models methodology provide an appropriate framework to capture the behaviour of the actors of transportation systems and, consequently, to forecast the demand. Recentl ...

2005

Capturing interactions in pedestrian walking behavior in a discrete choice framework

Michel Bierlaire, Gianluca Antonini

In this paper we propose a general framework for pedestrian walking behavior, based on discrete choice modeling. Two main behaviors are identified: emphunconstrained and emphconstrained. The constrained patterns are further classified into emphattractive i ...

2005

A Discrete choice framework for acceleration and direction change behaviors in walking pedestrians

Michel Bierlaire, Gianluca Antonini

The walking process is interpreted as a sequence of decisions about where to put the next step. A dynamic and individual-based spatial discretization is used to represent the physical space. A behavioral framework for pedestrian dynamics based on discrete ...

SPIE2005

Estimation of value of travel-time savings using Mixed Logit models

Michel Bierlaire

In this paper, we discuss some of the issues that arise with the computation of the implied value of travel-time savings in the case of discrete choice models allowing for random taste heterogeneity. We specifically look at the case of models producing a n ...

2005

A practical test for the choice of mixing distribution in discrete choice models

Michel Bierlaire

The choice of a specific distribution for random parameters of discrete choice models is a critical issue in transportation analysis. Indeed, various pieces of research have demonstrated that an inappropriate choice of the distribution may lead to serious ...

2005

Discrete choice models of pedestrian behavior

Michel Bierlaire, Gianluca Antonini, Matthias Weber

We propose a discrete choice framework for pedestrian dynamics, modeling 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. W ...

2004

Estimation of value-of-time using Mixed Logit models

Michel Bierlaire

Value-of-time is a critical willingness-to-pay indicator in many transportation applications. In this paper, we discuss the computation of this measure in the case of discrete choice models allowing for random taste heterogeneity. We first present the theo ...

2004

Bayesian Integration of a Discrete Choice Pedestrian Behavioral Model and Image Correlation Techniques for Automatic Multi Object Tracking

Michel Bierlaire, Jean-Philippe Thiran, Gianluca Antonini

In this paper we deal with the multi-object tracking problem in the particular case of pedestrians, assuming the detection step already done. We use a Bayesian framework to combine the likelihood term provided by an image correlation algorithm with a prior ...

IEEE2004

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