Hi Gang, This week we will have a tea talk by Christopher Pal and Pascal Vincent about their recent vision work. Note the change in time and day. Hope to see you all there. Date & Time: Friday Sept 9th. 15h30 Place: TBA (likely the LISA lab) Title: "Monitoring user states during gameplay" Cameras, microphones, and heart-rate monitors have been installed to record a player's attitude during Ubisoft gametests. We will describe the computer vision processing pipeline and various machine learning approaches that we have so far explored for the sake of analysing the face-facing camera data. One goal of this work was to allow automatic detection of interesting events (that is, mainly to detect when the user's facial expression displays a state other than neutral). This is achieved with clustering and outlier detection techniques and has been implemented in a Playtest data browser, which will, among other things, greatly facilitate any future state/emotion labeling efforts on this data. We will also give a brief account of the various approaches that we explored for learning to classifiy facial emotions based on publicly available labeled datasets. Finally the presentation will open to a broader reflection on the potential for such technologies to be incorporated in the future, not only to facilitate playtest analysis, but also in original live game ideas. Note: this is a practice for a presentation that will be given at Ubisoft. Cheers, Aaron -- Aaron C. Courville Département d’Informatique et de recherche opérationnelle Université de Montréal email:Aaron.Courville@gmail.com