| 摘要 |
PURPOSE:To realize more flexible word retrieval and more efficient word retrieval by collating a part preceding a key character of a given character string and a part succeeding this key character with a word dictionary. CONSTITUTION:A character string reading means 31 is started, and a character string to be subjected to word retrieval out of character strings is written on a character string storage means 32. A degree of reliability of character recognition for each character is sent to a key character setting means 33 to determine the key character. A key character retrieving means 34 is started to retrieve words having the key character in key character parts 211. A succeeding expression part collating means 36 is started to collate a partial character string succeeding the key character with rear expression parts 213 of the word dictionary. A preceding expression part collating means 35 is started to collate a partial character string preceding the key character with preceding expression parts 212 of individual words successively, and the word coinciding the input character string is sent back to a retrieval control means 38.
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