Robust Expert Ranking in Online Communities - Fighting Sybil Attacks
Khaled Ahemd Naji Rashed, Cristina Balasoiu, Ralf Klamma · 2012
Nowadays, many online communities provide means for users to contribute in the evaluation of community created media by tagging, commenting and rating. Judging the users expertise in such collaborative systems is an important issue. As these systems are becoming increasingly popular, they are a