| 摘要 |
PROBLEM TO BE SOLVED: To provide an information retrieval system and an information retrieval method capable of efficiently retrieving information on a WWW, especially an information retrieval method capable of performing information retrieval reflecting the taste of a specific user retrieving the information, an information retrieval server and an information retrieval program. SOLUTION: A page retrieval part 21 searches and outputs a WWW page ID having a keyword using a key word/page conversion table. A community retrieval part 22 finds a community of a user performing information retrieval by performing matrix clustering from the user/page conversion table with the user ID and the WWW page ID as initial values, and outputs the WWW page ID with much access of the user belonging to the community and the WWW page ID containing the keyword to a page list generation part 22. The page list generation part 23 generates a WWW page list ranking the WWW page ID. COPYRIGHT: (C)2004,JPO&NCIPI
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