For the ones who cannot come, a real-time videobroadcasting will be made available, using the videoconference system gotomeetings. To receive the video link, you need to register. Update. The link has been sent to to all registered participants on Wednesday at 18:42. If you did not receive the link for any reason, you can write to Stephane.Gaubert@inria.fr, Stephanie.Clevenot@polytechnique.edu