1 code implementation • 9 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.
no code implementations • 5 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.
no code implementations • 5 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.
1 code implementation • 7 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.
1 code implementation • 22 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
1 code implementation • 14 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.
no code implementations • 10 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.
1 code implementation • 1 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
no code implementations • 13 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.
2 code implementations • 7 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.