| 摘要 |
PROBLEM TO BE SOLVED: To provide a full text retrieval system capable of obtaining a further precise retrieval result by enabling a user to designate a score calculation in full text retrieval. SOLUTION: When the order of retrieval results is determined by an adaptation score showing the adaptation of a registered document to a retrieval condition to form a retrieval result list, an attribute score calculation equation for calculating an attribute score from the attribute of the registered document and a composition score calculation equation for calculating a composition score from the adaptation score and the attribute score are held as schemer information. When a document is registered, the attribute of the document and the attribute score calculated by the attribute score calculation equation are registered to a score file in association with the document. When retrieval results are acquired, the composition score is calculated by the composition score calculation equation, for each result matched to a retrieval condition, from the adaptation score corresponding to the document of the retrieval result and the attribute score stored in the score file, and a retrieval result list is formed based on the calculated composition score. COPYRIGHT: (C)2006,JPO&NCIPI
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