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Abstract

An information retrieval system, apparatus, and method are provided, for automatically selecting suitable database(s) from among a plurality of databases via a simple operation, with excellent accuracy. The method comprises the steps of extracting evaluated values which correspond to each of designated retrieval terms and are assigned to the databases from a storage device which stores the evaluated values assigned to the databases and the retrieval terms in a correspondence relationship; calculating evaluated values which are respectively assigned to the databases, based on the evaluated values extracted for each retrieval term; selecting databases to be searched from among the plurality of databases in accordance with the calculated evaluated values for each database; issuing a data-search request based on the retrieval terms to the selected databases; and correcting the evaluated values stored in the storage device and correspond to the retrieval terms, in accordance with search results.

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First Claim