| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a retrieval method for achieving highly precise retrieval while suppressing the load of an operation in a user. Ž<P>SOLUTION: A query accepting part 11 accepts a query for retrieval, and transmits it to a first retrieval engine 41 and second retrieval engines 42 to 44. The first retrieval engine 41 obtains a first retrieval result on the basis of the query, and the second retrieval engines 42 to 44 obtain a second retrieval result on the basis of the query. A ranking adjusting part 13 changes the ranking of the first retrieval result on the basis of the similarity of the first retrieval result and the second retrieval result. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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