He is currently working as a research and teaching assistant in the multimedia information processing group of the Institut Eurecom (France).His research interests include computer vision, content-based retrieval, multimedia data mining and indexing (still and/or moving images) and pattern recognition. He has published over 80 papers in journals, edited books and refereed conferences. He is a member of IEEE, ACM and ISIF. He has served in many international conference organisation and technical program committee. He is regularly invited to serves as reviewer for prestigous scientific journals as well as expert for project proposal at national, European and International level. He was the conference chair of the International Conference on Multimedia Modeling (MMM'2009) which is to take place in Sophia-Antipolis (France) in january 2009. He co-organised 2 ACM Multimedia workshops: WSMC'09 and LS-MCMR'10.