| 摘要 |
PROBLEM TO BE SOLVED: To increase convenience as well as attain reduction in processing time concerning document retrieval processing by retrieving a document with a small number of times of processing. SOLUTION: A document retrieval program, document retrieval method and document retrieval device according to one embodiment 1 requires only one subtraction processing using two values (a position of a synonym appearing first and a position of a synonym appearing last) so as to calculate a distance between two keywords. Further, only one determination processing is required, regardless of the number of keywords, in order to determine that the document 200 to be retrieved is the document meeting retrieval conditions. Thus, reduction in retrieval time concerning document retrieval processing can be attained. COPYRIGHT: (C)2008,JPO&INPIT
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