| 摘要 |
PROBLEM TO BE SOLVED: To considerably increase the accuracy of a search result when conducting an information search using a search engine. SOLUTION: A method, that searches for desired information from a database, includes a process (step S101) that determines an initial query term and a context category, a process (step S102) that sends the initial query term and the context category to a taxonomy type search engine, a process (step S107) that extends the initial query term, and a process (step S109) that sends the extended initial query term to a crawler type search engine.
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