CLUSTER-BASED ASSESSMENT OF USER INTERESTS

摘要

Methods are disclosed for clustering items and Improving the utility of item recommendations One process Involves applying a clustering algorithm (36) to a user's collection of Items Information about the resulting clusters is then used to select items to use as recommendation sources (38) Another process involves displaying the clusters of items to the user via a collection management Interface that enables the user to attach cluster-level metadata, such as by rating or tagging entire clusters of items The resulting metadata may be used to improve the recommendations generated by a recommendation engine (62) Another process involves using a clustering engine (60) to form clusters of items in which a user has indicated a lack of interest, and using these clusters to filter (64) the output of a recommendation engine (62).