CNRS researcher at the Computer Science Department of ENS (DI ENS), Université PSL.

I am interested in various aspects of machine learning, statistics and signal processing. In the deep past (1990s), I started in the domain of speech and audio processing. More recently (2000s), I contributed to Bayesian methods, Markov Chain Monte Carlo and to some applications in natural language processing. Most of my recent works (2010s) are related to online learning and multi-armed bandit models.
Since September 2021, I am affiliated to the newly created Centre Sciences des Données (CSD) at ENS.
I also serve as scientific deputy director of the CNRS division of Information Sciences and Technologies (INS2I), where I am in charge of actions in the field of information sciences at large (on topics such as artificial intelligence, cybersecurity and quantum computing).
And, by the way, I really like the new moto of the HAL archive: La connaissance libre et partagée.
News
- Co-organized the EPIT (Theoretical Computer Science) spring school 2022 on Machine Learning at CIRM in Marseille - Luminy in May 2022. The school is (unfortunately) over but you may find very interesting material (recorded lectures and detailed lecture notes taken by the participants) there.
- Internship at ENS/Sarus technologies on Differential Privacy (applications are closed).
- Teaching the Fundamentals of Reinforcement Learning Course at the IASD master of Université PSL (courses on Thursday morning, January - March 2022 in Paris-Dauphine).