| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable a user to automatically extract keywords for a content retrieval from content title information and detailed information such as EPG information with efficiency and accuracy even on a home electric appliance limited in CPU throughput and memory capacity. <P>SOLUTION: An automatic keyword extraction device comprises a first extraction means 19 for extracting keywords from content title information with the use of a first keyword dictionary registering character strings representing subgenres, and a second extraction means 19 for extracting keywords with the use of a second keyword dictionary registering personal names and extracting keywords with the use of character type separation both from content detailed information. <P>COPYRIGHT: (C)2008,JPO&INPIT |
