| 摘要 |
PROBLEM TO BE SOLVED: To obtain a retrieval system, retrieval method, and retrieval program, intuitively retrieving a content even when it is difficult to be represented with a language. SOLUTION: When a user 101 raises a thread 108 for a bulletin board for an impression received at a current position, the user selects position information at the position P<SB>1</SB>obtained by using a GPS satellite 107 and visual information to be displayed on the display section of a mobile communication terminal 102, and associates them with this thread. The visual information does not constitute characters. A site can be retrieved, therefore, on the basis of the same position information and visual information without via characters or language. Characters can also be used together for retrieval as a keyword. COPYRIGHT: (C)2009,JPO&INPIT
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