| 摘要 |
PROBLEM TO BE SOLVED: To obtain a retrieving device which supports information retrieval for obtaining an idea to solve a problem which an engineer as a user faces from a case database which accumulates work records that are results of the application of know-how. SOLUTION: The retrieving device is provided with; a storage means which stores a history of retrieval results which are retrieved by using a database including a plurality of data as a history database; an inputting means which receives the input of retrieval information from a user; and an extraction means which extracts retrieval result history information which has a close relation to the retrieval information from the information accumulated in the history database. COPYRIGHT: (C)2006,JPO&NCIPI
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