| 摘要 |
PROBLEM TO BE SOLVED: To provide a question answering device and system for holding the priority of a database structurer. SOLUTION: This question answering device is provided with a document analyzing part for acquiring a retrieval word by analyzing a question sentence, a document storage part for storing a document group including answer candidates to the question sentence, a document retrieving part for acquiring an identifier group for identifying a document corresponding to the retrieval word by referring to the document storing part, a session managing part for enabling a user to arbitrarily select the identifier group and an answer extracting part for acquiring a document corresponding to the identifier group from the session managing part by referring to the document storing part, and for extracting the answer candidates corresponding to the predetermined question classification from the document. This question answering device is also provided with an answer processing control part for performing the decision of the number of documents as the decision of answer processing based on the identifier group, and for, when the number of documents is not more than a predetermined reference value according to the decision, outputting the result that there is no answer to the question sentence as the answer result of the question sentence. COPYRIGHT: (C)2005,JPO&NCIPI
|
