| 摘要 |
PROBLEM TO BE SOLVED: To provide an information filtering apparatus for comprehensively and efficiently filtering information related to a specific theme from the Web, etc. SOLUTION: A search means 11 presents a Web search result report to a client terminal 20. A theme space construction means 12 updates theme information in a theme information DB 13 through feedback of information acquired from the client terminal 20, and performs Web search to construct a theme space. The search means 11 includes a coverage calculation means for calculating a coverage representing a ratio of a user-acquired portion to the entire target theme. Further, the search means 11 include a difference calculation means for calculating a difference between an acquired range when target Web pages are acquired by a user and a previous user-acquired range and a relevance calculation means for calculating the relevance of the target Web pages to the target theme. COPYRIGHT: (C)2010,JPO&INPIT |
