| 摘要 |
PROBLEM TO BE SOLVED: To reduce the trouble of thesaurus dictionary management by registering noun phrases as relative words and similar words of corresponding index words in a relative word and similar word dictionary. SOLUTION: Clients 100 select index words in the thesaurus dictionary 105 and specify the execution of a retrieving process for documents. Dictionary management softwar 106 manages the thesaurus dictionary 105. Retrieval software 107 generates a dislocation file 102 by using documents in a document data base 101, uses a retrieval engine to retrieve a corresponding document from the dislocation file 102 according to a selected index word in the thesaurus dictionary 105, and extracts an index word or similar word of the thesaurus dictionary 105 from the document as the retrieval result. Namely, a score corresponding statistical information on the appearance frequency, distribution, etc., of an object document group to be retrieved which is selected for the extracted noun phrase is imparted, the noun phrase having a score corresponding to a set retrieval condition is selected, and the noun phrase is registered as the relative word or synonym of the corresponding index word in the relative word or synonym. |
