1 code implementation • 4 Feb 2024 • Justin Dumouchelle, Esther Julien, Jannis Kurtz, Elias B. Khalil
Bilevel optimization deals with nested problems in which a leader takes the first decision to minimize their objective function while accounting for a follower's best-response reaction.
1 code implementation • 6 Oct 2023 • Justin Dumouchelle, Esther Julien, Jannis Kurtz, Elias B. Khalil
We propose Neur2RO, a deep-learning-augmented instantiation of the column-and-constraint-generation (CCG) algorithm, which expands the applicability of the 2RO framework to large-scale instances with integer decisions in both stages.
3 code implementations • 20 May 2022 • Justin Dumouchelle, Rahul Patel, Elias B. Khalil, Merve Bodur
Stochastic Programming is a powerful modeling framework for decision-making under uncertainty.
2 code implementations • 4 Mar 2022 • Maxime Gasse, Quentin Cappart, Jonas Charfreitag, Laurent Charlin, Didier Chételat, Antonia Chmiela, Justin Dumouchelle, Ambros Gleixner, Aleksandr M. Kazachkov, Elias Khalil, Pawel Lichocki, Andrea Lodi, Miles Lubin, Chris J. Maddison, Christopher Morris, Dimitri J. Papageorgiou, Augustin Parjadis, Sebastian Pokutta, Antoine Prouvost, Lara Scavuzzo, Giulia Zarpellon, Linxin Yang, Sha Lai, Akang Wang, Xiaodong Luo, Xiang Zhou, Haohan Huang, Shengcheng Shao, Yuanming Zhu, Dong Zhang, Tao Quan, Zixuan Cao, Yang Xu, Zhewei Huang, Shuchang Zhou, Chen Binbin, He Minggui, Hao Hao, Zhang Zhiyu, An Zhiwu, Mao Kun
Combinatorial optimization is a well-established area in operations research and computer science.
1 code implementation • 6 Apr 2021 • Antoine Prouvost, Justin Dumouchelle, Maxime Gasse, Didier Chételat, Andrea Lodi
In this paper we describe Ecole (Extensible Combinatorial Optimization Learning Environments), a library to facilitate integration of machine learning in combinatorial optimization solvers.
no code implementations • 29 Jan 2021 • Justin Dumouchelle, Emma Frejinger, Andrea Lodi
Routinely solving such operational problems when deploying reinforcement learning algorithms may be too time consuming.
2 code implementations • NeurIPS Workshop LMCA 2020 • Antoine Prouvost, Justin Dumouchelle, Lara Scavuzzo, Maxime Gasse, Didier Chételat, Andrea Lodi
We present Ecole, a new library to simplify machine learning research for combinatorial optimization.