METHOD FOR EXPERTISE MAPPING BASED ON USER ACTIVITY IN RECOMMENDER SYSTEM

摘要

PPROBLEM TO BE SOLVED: To provide a method for identifying an expert or authority from among communities of interested fields in a recommender system. PSOLUTION: The method for identifying experts from among communities of users in a recommender system includes a step for identifying first an item in a particular field provided by a user in the community. For each identified item, it is decided by the method which users in the community have acted upon the identified item; it is decided by the method which of users who have acted on the identified document are aware of other related items in the particular field; and the users are defined as hub experts in the particular field. Moreover, it is decided by the method which identified items have been acted upon by a predetermined number of hub experts, and the items are defined as authoritative items. PCOPYRIGHT: (C)2005,JPO&NCIPI