| 摘要 |
PROBLEM TO BE SOLVED: To efficiently retrieve data more close to a retrieval target of a user. SOLUTION: This retrieval device retrieving the retrieval target from a database 31 on the basis of a designated retrieval term or retrieval sentence, and outputting a retrieval result has: a retrieval requirement analysis means 22 analyzing inputted retrieval requirement to set a retrieval condition; a retrieval means 32 searching the database 31 on the basis of the retrieval condition set by the retrieval requirement analysis means 22, and acquiring a data set of the retrieval result; and a score calculation means 33 calculating a score for performing desired ordering to individual data of the data set acquired by the retrieval means 32. COPYRIGHT: (C)2007,JPO&INPIT
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