Speakers and Schedule

Plenary Speakers


Invited Speakers


Schedule

Thursday October 2, 2025
 8h00 Breakfast
 8h45 Welcome address
 9h00 Plenary 1
The Early Days of the GENCOL Team: Thinking Outside the Box
Jacques Desrosiers
 9h50 Plenary 2
Cluster analysis in the interplay of operations research and machine learning
Brigitte Jaumard
 10h40 Coffee break
 11:00 Integer programming primalization
Issmail Elhallaoui
 11h25 Columns and Clusters: Aggregating the Work of P. Hansen & F. Soumis
Daniel Aloise
 11h50 Art, passion, and mathematics: the “Soumis” code
Sophie D'Amours
 12h15 Lunch
 14h00 Recreational mathematics: A three-tray scale
Charles Audet
 14h25 Benders Decomposition and Column Generation for Joint Rolling Stock and Crew Scheduling
Jean-François Cordeau
 14h50 Un monde de découvertes
Gilles Caporossi
 15h15 The Dynamic Predicate Stashing Copy Problem
Brunilde Sansò
 15h40 Coffee break
 16:00 GPU-Accelerated Primal-Dual Column Generation for Large-Scale Resource Allocation Problems
Marcus Poggi
 16h25 Deep-learning-based partial pricing in a branch-and-price algorithm for personalized crew rostering
Frédéric Quesnel
 16h50 Clustering on graphs with Pierre Hansen
Sonia Cafieri
 17h15-20h00 Cocktail (room B.307)


Friday October 3, 2025
 8h00 Breakfast
 8h45 Plenary 3
Discussing research with François
Patrick Jaillet
 9h35 Spatial pricing and the strategic choice of retail formats
Jacques Tisse
 10h00 Overview of optimization problems in the mining industry
Michel Gamache
 10h25 Coffee break
 10h45 Machine-learning–based arc selection for constrained shortest path problems in column generation
Andrea Lodi
 11h10 Polyhedral approach to the optimization of chemical invariants
Alain Hertz
 11h35 A VNS-based algorithm for very large-scale practical dial-a-ride problems
Michel Gendreau
 12h00 Lunch
 13h45 Plenary 4
My work with Pierre Hansen
Léo Liberti
 14h35 Personnel scheduling in flexible operating environments
Monia Rekik
 15h00 Coffee break
 15h20 The Story of Hansen's Octagon
Frédéric Messine
 15h45 Dynamic constraint aggregation for the multi-depot bus scheduling problem
Guy Desaulniers
 16h10 Payment schemes for finitely repeated Prisoner's Dilemma games
Georges Zaccour