1 code implementation • 22 Mar 2023 • Morgane Goibert, Clément Calauzènes, Ekhine Irurozki, Stéphan Clémençon
As the issue of robustness in AI systems becomes vital, statistical learning techniques that are reliable even in presence of partly contaminated data have to be developed.
2 code implementations • 6 Jan 2022 • Louis Faury, Marc Abeille, Kwang-Sung Jun, Clément Calauzènes
Logistic Bandits have recently undergone careful scrutiny by virtue of their combined theoretical and practical relevance.
no code implementations • 31 Jul 2021 • Flore Sentenac, Jialin Yi, Clément Calauzènes, Vianney Perchet, Milan Vojnovic
Finding an optimal matching in a weighted graph is a standard combinatorial problem.
no code implementations • 9 Mar 2021 • Louis Faury, Yoan Russac, Marc Abeille, Clément Calauzènes
Generalized Linear Bandits (GLBs) are powerful extensions to the Linear Bandit (LB) setting, broadening the benefits of reward parametrization beyond linearity.
no code implementations • NeurIPS Workshop LMCA 2020 • Lucas Anquetil, Mike Gartrell, Alain Rakotomamonjy, Ugo Tanielian, Clément Calauzènes
Through an evaluation on a real-world dataset, we show that our Wasserstein learning approach provides significantly improved predictive performance on a generative task compared to DPPs trained using MLE.
no code implementations • 23 Oct 2020 • Marc Abeille, Louis Faury, Clément Calauzènes
It was shown by Faury et al. (2020) that the learning-theoretic difficulties of Logistic Bandits can be embodied by a large (sometimes prohibitively) problem-dependent constant $\kappa$, characterizing the magnitude of the reward's non-linearity.
no code implementations • ICML 2020 • Lorenzo Croissant, Marc Abeille, Clément Calauzènes
In display advertising, a small group of sellers and bidders face each other in up to 10 12 auctions a day.
no code implementations • ECCV 2020 • Thibaut Issenhuth, Jérémie Mary, Clément Calauzènes
This task requires fitting an in-shop cloth image on the image of a person, which is highly challenging because it involves cloth warping, image compositing, and synthesizing.
no code implementations • ICML 2020 • Louis Faury, Marc Abeille, Clément Calauzènes, Olivier Fercoq
For logistic bandits, the frequentist regret guarantees of existing algorithms are $\tilde{\mathcal{O}}(\kappa \sqrt{T})$, where $\kappa$ is a problem-dependent constant.
no code implementations • 4 Jun 2019 • Thibaut Issenhuth, Jérémie Mary, Clément Calauzènes
This task requires to fit an in-shop cloth image on the image of a person.
no code implementations • 9 Oct 2018 • Rémy Degenne, Thomas Nedelec, Clément Calauzènes, Vianney Perchet
State of the art online learning procedures focus either on selecting the best alternative ("best arm identification") or on minimizing the cost (the "regret").
no code implementations • 22 May 2018 • Louis Faury, Flavian vasile, Clément Calauzènes, Olivier Fercoq
The aim of global optimization is to find the global optimum of arbitrary classes of functions, possibly highly multimodal ones.
no code implementations • 22 Jan 2018 • Alexandre Gilotte, Clément Calauzènes, Thomas Nedelec, Alexandre Abraham, Simon Dollé
Before A/B testing online a new version of a recommender system, it is usual to perform some offline evaluations on historical data.
no code implementations • 29 May 2017 • Clément Calauzènes, Nicolas Le Roux
In recent years, variance-reducing stochastic methods have shown great practical performance, exhibiting linear convergence rate when other stochastic methods offered a sub-linear rate.