| 摘要 |
PROBLEM TO BE SOLVED: To retrieve a sentence, which a user intends to have, at a high speed with multiple examples as objects. SOLUTION: Classification numbers are allocated to respective concepts constituting a thesaurus, where words are hierachized into a tree structure based on the concepts. The classification number and sentence numbers allocated to the examples having the words belonging to the concepts corresponding to the classification numbers are correspondingly registered in a retrieval dictionary. When a keyword is inputted, the sentence number corresponding to the classification number allocated to the concept to which the keyword belongs is detected by referring to the retrieval dictionary. |
