Francois Lamothe

Chercheur Postdoctoral au LIMOS
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Affiliation actuelle
  • Laboratoire d'Informatique, de Modélisation et d'Optimisation des Systèmes (LIMOS)

Présentation

I am a researcher in operations research and optimization. I obtained my PhD from ISAE-Supaéro (Toulouse), where I worked on the unsplittable flow problem with applications to satellite communication networks. I then held several postdoctoral positions at CIRRELT (Montreal), LAAS-CNRS (Toulouse), and LIMOS (Clermont-Ferrand).

My research mainly focuses on mixed-integer linear programming, combinatorial optimization, with applications to networks, transportation, and sustainable systems. I am particularly interested in decomposition methods, polyhedral approaches, and the use of concepts from cooperative game theory such as the Shapley value. More broadly, I aim to connect optimization methods with societal and environmental challenges.


Compétences

Linear programming Mixed integer linear programming Operationnal Research Decomposition methods

Publications

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Publications

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On the integration of Dantzig-Wolfe and Fenchel decompositions via directional normalizations

François Lamothe , Alain Haït , Emmanuel Rachelson , Claudio Contardo , Bernard Gendron

EURO Journal on Computational Optimization, 2025, ⟨10.48550/arXiv.2303.15573⟩

Article dans une revue hal-04875156v2
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Rethinking LEO Constellations Routing

Paul Grislain , Alexia Auddino , Anna Barraqué , François Lamothe , Oana Hotescu et al.

International Journal of Satellite Communications and Networking, 2024, Special Issue ASMS/SPSC 2022, ⟨10.1002/sat.1514⟩

Article dans une revue hal-04505620v1
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Tilted inequalities and facets of the set covering polytope: A theoretical analysis

François Lamothe , Claudio Contardo , Matthieu Gruson

Discrete Applied Mathematics, 2024, 357, pp.143-160. ⟨10.1016/j.dam.2024.06.004⟩

Article dans une revue hal-04874698v1
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Dynamic unsplittable flows with path-change penalties: New formulations and solution schemes for large instances

François Lamothe , Emmanuel Rachelson , Alain Haït , Cédric Baudoin , Jean-Baptiste Dupé

Computers and Operations Research, 2023, 152, pp.106154. ⟨10.1016/j.cor.2023.106154⟩

Article dans une revue (article de synthèse) hal-04638005v1
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Randomized rounding algorithms for large scale unsplittable flow problems

François Lamothe , Emmanuel Rachelson , Alain Haït , Cedric Baudoin , Jean-Baptiste Dupé

Journal of Heuristics, 2021, 27 (6), pp.1081-1110. ⟨10.1007/s10732-021-09478-w⟩

Article dans une revue hal-04637969v1