Collaborative sanctioning: applications in restaurant recommendations based on reputation

Collaborative filtering and collaborative sanctioning need to be differentiated. Collaborative filtering concerns with the pooling together of opinions from all users of a system [2]. This pooling is done without weighing the reliability (or reputation) of the users. The weight for any given individual upon which the combined rating depends is the subject of collaborative sanctioning. This paper describes a system: the Restaurant Sanctioning Service (RSS) which provides weighting for ratings based on the reputation of the raters. We call such a system a collaborative sanctioning system.