| 摘要 |
<P>PROBLEM TO BE SOLVED: To appropriately extract information desired by a user, when accepting retrieval conditions from the user. <P>SOLUTION: A network system S is provided with a database 10 for storing a plurality of files to be retrieved; a terminal 30 for accepting the input of a retrieval keyword from a user; a data storage section 40 for storing action history data collected, concerning the action history of the user; a portable telephone set 50 for giving action history data as GPS data, photographic data, voice data and mail data to the data storage section 40; and a retrieval engine 20 for creating a retrieval index, by integrating a retrieval keyword given by the terminal equipment 30 with the action history data and for performing the retrieval processing of the file to the database 10. <P>COPYRIGHT: (C)2011,JPO&INPIT |
