| 摘要 |
<P>PROBLEM TO BE SOLVED: To estimate user's interest with high accuracy, while protecting user's personal information without requiring a special operation of a user for personal information protection. <P>SOLUTION: An information processing system comprises a client device and a server device transmitting data according to a request. The server device performs following steps: generating overall concept relation information showing correlation between a morpheme which appears in data and its concept, using the data on a network, to transmit it to the client device; and transmitting a data group which is related to the concept received from the client device to the client device. The client device performs following steps: generating personal concept relation information showing correlation between a morpheme which appears in data and its concept, using the data operated by the own device; estimating user's interest based on a comparison result between the personal concept relation information and the overall concept relation information; and transmitting a data acquisition request and the concept corresponding to the interest to the server device. <P>COPYRIGHT: (C)2012,JPO&INPIT |
