Search Results for author: Michel Bierlaire

Found 10 papers, 6 papers with code

Scalable Kernel Logistic Regression with Nyström Approximation: Theoretical Analysis and Application to Discrete Choice Modelling

1 code implementation9 Feb 2024 José Ángel Martín-Baos, Ricardo García-Ródenas, Luis Rodriguez-Benitez, Michel Bierlaire

Among these strategies, the k-means Nystr\"om KLR approach emerges as a successful solution for applying KLR to large datasets, particularly when combined with the L-BFGS-B and Adam optimisation methods.

A Data Fusion Approach for Ride-sourcing Demand Estimation: A Discrete Choice Model with Sampling and Endogeneity Corrections

no code implementations5 Dec 2022 Rico Krueger, Michel Bierlaire, Prateek Bansal

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.

Discrete Choice Models

ciDATGAN: Conditional Inputs for Tabular GANs

no code implementations5 Oct 2022 Gael Lederrey, Tim Hillel, Michel Bierlaire

Then, we demonstrate that ciDATGAN can be used to unbias datasets with the help of well-chosen conditional inputs.

DATGAN: Integrating expert knowledge into deep learning for synthetic tabular data

1 code implementation7 Mar 2022 Gael Lederrey, Tim Hillel, Michel Bierlaire

We show that the best versions of the DATGAN outperform state-of-the-art generative models on multiple case studies.

Estimation of discrete choice models with hybrid stochastic adaptive batch size algorithms

1 code implementation22 Dec 2020 Gael Lederrey, Virginie Lurkin, Tim Hillel, Michel Bierlaire

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.

Stochastic Optimization Optimization and Control

Robust discrete choice models with t-distributed kernel errors

1 code implementation14 Sep 2020 Rico Krueger, Michel Bierlaire, Thomas Gasos, Prateek Bansal

In a case study on transport mode choice behaviour, MNR and Gen-MNR outperform MNP by substantial margins in terms of in-sample fit and out-of-sample predictive accuracy.

Discrete Choice Models

Bayesian Automatic Relevance Determination for Utility Function Specification in Discrete Choice Models

no code implementations10 Jun 2019 Filipe Rodrigues, Nicola Ortelli, Michel Bierlaire, Francisco Pereira

Specifying utility functions is a key step towards applying the discrete choice framework for understanding the behaviour processes that govern user choices.

Bayesian Inference Discrete Choice Models +1

Variational Bayesian Inference for Mixed Logit Models with Unobserved Inter- and Intra-Individual Heterogeneity

1 code implementation1 May 2019 Rico Krueger, Prateek Bansal, Michel Bierlaire, Ricardo A. Daziano, Taha H. Rashidi

Besides, the simulation study demonstrates that a parallelised implementation of the MSL estimator with analytical gradients is a viable alternative to MCMC in terms of both estimation accuracy and computational efficiency, as the MSL estimator is observed to be between 0. 9 and 2. 1 times faster than MCMC.

Methodology Econometrics

Pólygamma Data Augmentation to address Non-conjugacy in the Bayesian Estimation of Mixed Multinomial Logit Models

no code implementations13 Apr 2019 Prateek Bansal, Rico Krueger, Michel Bierlaire, Ricardo A. Daziano, Taha H. Rashidi

The standard Gibbs sampler of Mixed Multinomial Logit (MMNL) models involves sampling from conditional densities of utility parameters using Metropolis-Hastings (MH) algorithm due to unavailability of conjugate prior for logit kernel.

Data Augmentation

Bayesian Estimation of Mixed Multinomial Logit Models: Advances and Simulation-Based Evaluations

2 code implementations7 Apr 2019 Prateek Bansal, Rico Krueger, Michel Bierlaire, Ricardo A. Daziano, Taha H. Rashidi

To address the latter, we conduct an extensive simulation-based evaluation to benchmark the extended VB methods against MCMC and MSLE in terms of estimation times, parameter recovery and predictive accuracy.

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