Nov 2018 Benjamin has received the prize for best MSc thesis in OR from the ROADEF for his work on adversarial classification. Congrats Benjamin!
Nov 2018 Our paper looking at the facebook ad ecosystem with AdAnalyst has been accepted at NDSS '19. Congrats to Thanos and Marcio!
Oct 2018 Our paper on fair representation in crowdsourced recommendation has been accepted at FAT* '19. Congrats to Abhijnan!
Oct 2018 We have two internship proposals on bandits. Contact us to learn more about these opportunities.
Mean Field Optimal Control for Multi-Armed Bandit Problems
Sequential Learning in Combinatorial Bandits under Delayed and Anonymous Feedback
Sep 2018 I will join Inria as a permanent researcher starting in November 2018!
Aug 2018 Our paper proposing a new approach based on intermittent withdrawal for deletion privacy has been accepted at PETS '19. Congrats to Mohsen!
Apr 2018 Our paper on efficient computation of approximate equilibrium in Blotto games has been accepted at IJCAI '18. Congrats to Quan!
Jan 2018 Our work on privacy leakage from Facebook's advertising platform was covered by WIRED and The Telegraph.
Dec 2017 I will give a talk for a large audience on transparency of social media advertising (in french), on Jan. 24 at the festival transfo.
Dec 2017 Our paper on privacy leakage from Facebook's advertising platform has been accepted at Oakland '18 (IEEE S&P). Congrats to Giri and Thanos!
Nov 2017 Our paper on the potential for discrimination in targeted advertising has been accepted at FAT* '18. Congrats to Till et al!
Oct 2017 Our paper on transparency of social media advertising has been accepted at NDSS '18. Congrats to Thanos and Giri!
Oct 2017 I have joined the LIG lab at Univ. Grenoble Alpes as the holder of a Chair of Excellence IDEX UGA on "human-aware learning in the digital society".
Oct 2017 Our tool AdAnalyst has been released. Check it out if you want to learn more about how you are being targeted on Facebook. Feedback is highly welcome!


Since November 2018, I am a research scientist at Inria Grenoble Rhône-Alpes, in the POLARIS team (a joint Inria/LIG team), where I am also a member of the LIG lab. From October 2017 to October 2018, I was the holder of a Chair of Excellence IDEX UGA at Univ. Grenoble Alpes (UGA) on "human-aware learning in the digital society", also in the POLARIS team at LIG. Since April 2016, I have also been a visiting researcher at the Max-Planck Institute for Software Systems (MPI-SWS), supported by a Humboldt fellowship for experienced researchers. Before joining UGA, I was an Assistant Professor in the data science department at EURECOM and I spent several long research visits at UC Berkeley and MPI-SWS.

I received my PhD in CS from ENS Lyon in 2009. Prior to that, I studied Physics at ENS Lyon (MSc '06) and after that I also studied Mathematics at UPMC (Paris) and Ecole Polytechnique (MSc '10). I was a postdoc at Inria Paris in 2010 and at UC Santa Cruz in 2011. I also received my HDR from UPMC in 2016.

My research interests revolve around game theory and statistical learning and their interactions, in particular in the context of security, privacy and ethics of online systems and algorithms. I am fortunate to work with a number of talented students and postdocs and to have my research supported by various public bodies and industries. Check my research page for more details about my research.

I am the chair of the steering committee of NetEcon and an associate editor of ACM Transactions on Internet Technology. I was a PC co-chair of NetEcon '12-'15 and I serve or have served as a PC member of numerous conferences (NIPS, ICML, SIGMETRICS, WiOpt, GameSec, etc.), as a guest editor of two journal special issues, as a reviewer for numerous journals and as a member of several evaluation committees for PhDs or panels for grant selection. For a complete list, please refer to my CV.