CHARACTER STRING RETRIEVING APPARATUS, AND CHARACTER STRING RETRIEVING METHOD

摘要

PROBLEM TO BE SOLVED: To retrieve a plurality of kinds of numerically expressed character strings with high accuracy by using a retrieval formula irrespective of expression forms of the character string.

SOLUTION: A character string retrieving apparatus comprises: a retrieval formula input means inputting a retrieval formula for retrieving numerically expressed characters including specified characters for specifying to retrieve the numerically expressed characters; a numerical expression detection means detecting numerically expressed character strings among a text to be searched; and a retrieval means retrieving character strings coinciding with the retrieval formula including the numerically expressed character strings detected by the detection means to output the character strings as a retrieval result.

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