| 摘要 |
PROBLEM TO BE SOLVED: To promptly search phrases. SOLUTION: As a stanza of two words, a break character is inserted on the boundary of the words constituting the stanza, an index table is produced in which document IDs are aligned by which the stanza is extracted using the stanza as a key, when retrieving, a word is extracted by conducting a morphological analysis regarding an inputted retrieval request, if the extracted words make a phrase composed of two or more words, every stanza of two words included in the phrase is extracted, using the extracted stanza as a key, the index table is searched, and the search result is acquired and outputted. COPYRIGHT: (C)2004,JPO
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