| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a user-friendly information retrieval method. <P>SOLUTION: An information retrieval system includes storage means for storing content, extraction means for extracting keywords about the content acquired from the storage means and currently used by a user, notification means for notifying the user of the keywords extracted by the extraction means, and retrieval means for adding the keywords extracted by the extraction means to keywords selected by the user from among the keywords of which the notification means notified the user and performing retrieval of content based on these keywords. <P>COPYRIGHT: (C)2013,JPO&INPIT |
