| 摘要 |
PURPOSE: To eliminate retrieval missing caused by a homonym selection error. CONSTITUTION: Since a retrieval processing part 4 retrieves a reading dictionary 5 while using a character string inputted from an input part 1, the homonym character string of that input character is provided, afterwards, retrieving object sentences are extracted from a retrieving object sentence storage part 6 by a control part 2 one by one, and retrieval is performed by the retrieval processing part 4 corresponding to the input character string and the homonym character string. When any sentence containing the homonym character string is retrieved, while using a cooccurrence dictionary 8a, a cooccurrence check part 7a checks whether a character string having high frequency to be used with the input character string is contained in that sentence or not and while using a non-cooccurrence dictionary 8b, a non-cooccurrence check part 7b checks whether a character string not to be used with the character string is contained in that sentence or not. The retrieving object sentence a retrieved character string found like this and further the cooccurrence character string or non- cooccurrence character string are correspondently stored in a retrieved result storage part 9. |
