Gaël Reynal

Student (ph.d.), GERAD

Polytechnique Montréal

Education

since Jan 2022

Ph.d. Apprentissage par renforcement pour la génération de routes

Polytechnique Montréal – Department of Mathematics and Industrial Engineering, Quentin Cappart, co-director, Guy Desaulniers, co-director, Louis-Martin Rousseau, director

Aug 2020 – Jan 2021

Master's degree

Polytechnique Montréal, Quentin Cappart, co-director, Guy Desaulniers, co-director, Louis-Martin Rousseau, director

Publications

Oct 2026

Improving column complementarity in a restricted master heuristic with a GRASP-guided completion: Application to the vehicle routing problem with stochastic demands

Gaël Reynal, Quentin Cappart, Guy Desaulniers, and Louis-Martin Rousseau

Computers & Operations Research, 194, Paper no: 107569, 2026 BibTeX reference

Oct 2026

G-2026-51
Penalty function-based dual stabilization for column generation with graph neural networks: Application to the vehicle routing problem with stochastic demands

Gaël Reynal, Quentin Cappart, Guy Desaulniers, and Louis-Martin Rousseau

Column generation is a widely used dual-guided approach to solve highly degenerate problems. During the resolution, the degeneracy of the master problem ofte...

BibTeX reference

Jun 2026

A Hybrid Learning-Based Matheuristic to Solve the Vehicle Routing Problem with Stochastic Demands

Gaël Reynal, Quentin Cappart, Guy Desaulniers, and Louis-Martin Rousseau

Integration of Constraint Programming, Artificial Intelligence, and Operations Research. CPAIOR 2026, Lecture Notes in Computer Science, vol 16595, Springer, Cham, 453–469, 2026 BibTeX reference

4 publications