Talks & Posters

Oral presentations¶

• Geometric and Computational Hardness of Bilevel Optimization
  • (2025-04-29) Journée MASAAI-PS, Nice
  • (2025-04-17) MaLGa Opt Seminar, Genoa
  • (2025-03-25) Bilevel Optimization and Hyperparameter Learning workshop, Lyon.
• Successes and pitfalls of bilevel optimization in machine learning
  • (2024-12-05) Ulysseus Research Workshop on Mathematics in Machine Learning, online.
  • (2024-11-28) SophIA Summit, Sophia-Antipolis.
  • (2024-11-04) Seminar Imaging in Paris, Paris.
• (Automatic) Iterative Differentiation: some old (& new) results (latest slides). (blackboard notes).
  • (2024-06-26) MTL Opt, MILA, Montréal.
  • (2024-03-06) Flatiron Institute, Center for Computational Mathematics, New York.
  • (2024-01-24) Kickoff seminar PEPR PDE-AI, Sorbonne Université, Paris.
  • (2023-11-06) Séminaire Parisien d'Optimisation (SPO), Sorbonne Université, Paris
  • (2023-10-19) Journées du GdR Mathématiques de l'Optimisation, Perpignan.
  • (2023-04-03) Séminaire Pluridisciplinaire d'Optimisation Toulousain (SPOT), ENSHEEIT, Toulouse.
  • (2022-12-13) Journées SMAI-SIGMA, Sorbonne Université, Paris.
• Hyper-parameters Selection by Automatic Differentiation (latest slides) (video)
  • (2022-06-27) Séminaire DANTE, ENS Lyon, Lyon.
  • (2021-12-02) Séminaire AOC, IRIT, Toulouse.
  • (2021-09-28) Séminaire Proba-Stat, LJAD, Nice.
  • (2021-07-09) Séminaire MAASAI, Inria, Sophia-Antipolis.
  • (2021-02-25) Séminaire Image Optimisation Probabilités, IMB, Virtual (Bordeaux)
  • (2020-11-12) Statistical Learning Seminars, Virtual.
  • (2020-01-16) Séminaire du GIPSA-Lab, Grenoble.
• Graph Neural Networks on Large Random Graphs (latest slides)
  • (2025-02-07) Mathematical Imaging and Surface Processing, Mathematisches Forschungsinstitut Oberwolfach
  • (2024-09-10) Statistical and Probabilistic Analysis of Random Networks and Processes, Nice.
  • (2022-06-28) Mathematical Methods of Modern Statistic, CIRM, Luminy.
  • (2022-06-13) Journée de la Société Française de Statistique, Université Claude Bernard, Lyon.
• Dual Extrapolation for Sparse Generalized Linear Models (latest slides)
  • (2020-07-08) SIAM Conference on Imaging Sciences (SIAM IS'20), Virtual.
• The Geometry of Sparse Analysis Regularization (latest slides)
  • (2019-09-18) French-German-Swiss Conference on Optimization (FGS'19), Université de Nice, Nice.
• Forward Jacobian estimation: applications to risk estimation and re-fitting (latest slides)
  • (2019-07-16) International Congress on Industrial and Applied Mathematics, Universitat de València (ICIAM'19), Valencia.
  • (2016-05-24) SIAM Conference on Imaging Sciences (SIAM IS'16), Hotel Old Town, Albuquerque.
• Finding optimal regularizations for low-complexity structures
  • (2019-07-09) Applied Inverse Problems (AIP'19), Université de Grenoble.
• A Sharp Oracle Inequality for Graph-Slope (latest slides)
  • (2018-06-25) Journées Proba-Stat, Université de Franche-Comté, Besançon.
  • (2017-11-03) Journée de restitution Défi INFINITI, IHP, Paris.
  • (2017-06-29) Séminaire Sisyphe, ENS Lyon, Lyon
• Accelerated Alternating Descent Methods for Dykstra-like problems (latest slides)
  • (2017-09-08) Optimization 2017, Universidade de Lisboa, Portugal.
• Model Selection for Low Complexity Priors (latest slides) (older slides)
  • (2018-06-07) SIAM Conference on Imaging Sciences (SIAM IS'18), Università di Bologna, Italy.
  • (2017-08-09) SPIE - Wavelets and Sparsity XVII, San Diego Convention Center, USA.
  • (2017-06-22) Information & Inference Prize Day, Stanford University, USA.
  • (2017-06-09) Journées de la SMAI, Azureva, Ronces-les-Bains.
  • (2017-01-19) Dirksen/Rauhut research group seminar, RWTH Aachen Germany.
  • (2016-07-04) AIMS Conference on Dynamical Systems, Differential Equations and Applications, Orlando.
  • (2016-05-09) Congrès National d'Analyse Numérique, Obernai
  • (2016-04-29) Journée de l'IMB, Université de Bourgogne, Dijon.
  • (2016-04-01) Séminaire MOD, XLIM, Université de Limoges.
  • (2016-02-09) Séminaire du CMAP, École Polytechnique, Palaiseau
  • (2015-10-07) Journées du Programme Gaspard Monge, ENSTA, Palaiseau.
  • (2015-05-29) Applied Inverse Problems (AIP'15), Helsinki.
  • (2015-01-16) GT Signal, IRISA, Rennes.
  • (2014-11-13) GT SMATI, Telecom ParisTech, Paris.
  • (2014-10-28) New Trends in Calculus of Variations, RICAM, Linz
  • (2014-02-03) GT Image et Statistiques, Université Paris-Dauphine, Paris.
  • (2013-10-24) GT Image, ENSICAEN, Caen.
  • (2013-10-17) GT Image, Université de Bordeaux.
  • (2013-09-06) GRETSI'13, Brest.
• A First look at Proximal Methods (blackboard)
  • (2015-05-21) SMILE, École Normale Supérieure, Paris.
• The Degrees of Freedom of the Group Lasso for a General Design (slides)
  • (2014-08-27) iTWIST,The Arsenal, Namur.
  • (2014-06-17) Curves and Surfaces 8th, Arts & Métiers ParisTech.
  • (2013-07-08) SPARS'13, EPFL, Lausanne.
  • (2013-01-23) Journée des nouveaux statisticiens, Université Paris-Dauphine, Paris.
• Robust Sparse Analysis Regularization (slides)
  • (2012-11-20) SIGMA'12, Centre International de Rencontres Mathématiques, Marseille.
  • (2011-11-18) Journée "Adaptativité pour les images naturelles et les textures", Institut Henri Poincaré, Paris.
  • (2011-09-12) GT Image, Université Paris-Dauphine, Paris.

Posters¶