| 摘要 |
PROBLEM TO BE SOLVED: To provide an information retrieval device and method for generating retrieval words and phrases related to a retrieval requesting words and phrases to be the retrieval wards and phrases, concerning the retrieval words and phrases inputted for retrieving related information in an information group. SOLUTION: Retrieval request words and phrases inputted for retrieving information through an inputting part 101 are temporarily stored in a retrieval request character string buffer 102, decomposed into morphemic columns by a natural language analyzing part 104, and stored in a morpheme list buffer 106. A retrieval processing part 103 processes each character string on description of each morpheme in the buffer 106 by a retrieval pattern generating part 107 for newly generating retrieval words and phrases, and stores them in a retrieval word list buffer 108. Thus, a data base 111 can be retrieved based on each kind of retrieval words and phrases generated related with the inputted retrieval request words and phrases, and information pertinent to the retrieval request words and phrases can be retrieved, and outputted from an outputting part 112. |
