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

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 are related to online learning methods and multi-armed bandit models.

I also serve as scientific deputy director of the CNRS division of Information Sciences and Technologies (INS2I), where I supervise actions in the field of information sciences at large (in quantum computing, cybersecurity and artificial intelligence) as well as international relations.