Sihem likes doing research at the intersection of databases, search and recommender systems. She is involved in Royal Jelly, a project which leverages common behavior in online tagging/rating sites to improve content serving.

Sihem joined Yahoo! Research in May 2006. Prior to that, she worked for 7 years at AT&T Labs after receiving her Ph.D. in CS from U. Paris XI-Orsay and INRIA, France.

Sihem co-chaired the Web 2.0 track at ICDE 2008, is chairing the CIKM 2008 DB track and co-chairing the VLDB 2009 Industrial track. She is a member of the editorial board of the Encyclopedia of Database Systems and is the Associate Editor of the June Issue of the Data Engineering Bulletin on recommender systems and databases.