DOCUMENT RETRIEVING METHOD, DOCUMENT RETRIEVING DEVICE AND RECORD MEDIUM RECORDE WITH DOCUMENT RETRIEVAL PROGRAM

摘要

PROBLEM TO BE SOLVED: To suppress the increase of the number of similar character strings even if a long character string is replaced with many similar characters by dividing a retrieval expression constructive word and connecting them with an AND thereby generating a partial retrieval expression. ;SOLUTION: A user inputs a retrieval expression as a retrieval request with a retrieval request inputting means 1b. A character string shift dividing means 1c first divides each retrieval expression constructive word included in the retrieval expression inputted by the retrieval request inputting means 1b according to a preliminarily defined rule. The dived character strings are connected with an AND, thereby replacing the original retrieval expression constructive word and generating a new retrieval expression. A similar character developing means 1d develops each retrieval expression constructive word in the new retrieval expression with a character about which an OCR easily makes an error and produces a similar character expansion retrieval expression. A retrieving means 1e retrieves text of recognition results included in retrieval data 1a according to a retrieval expression which is newly generated by the means 1d again.;COPYRIGHT: (C)2000,JPO