| 摘要 |
PROBLEM TO BE SOLVED: To precisely acquire a feature score of seed information to be provided for configuration of a keyword dictionary of a search engine.SOLUTION: A feature score calculation device 1 comprises: a user query DB 30 that stores frequency information for a query input by a user; a user URL DB 40 that stores selection frequency information for a URL selected by the user; a query URL DB 50 that stores selection frequency information for a URL of the query; a seed DB 60 that stores a URL of a query input by a target user of feature score calculation; an inverse seed DB 61 that stores a query categorized differently from the target query input by the non-target user and its URL; and a feature score calculation unit 70 that calculates each feature score of the target user, query and URL on the basis of the user query DB 30, the user URL DB 40, the query URL DB 50, the seed DB 60 and the inverse seed DB 61. |
