METHOD AND SYSTEM FOR ANSWERING QUESTION AND RECORDING MEDIUM WITH RECORDED QUESTION ANSWERING PROGRAM

摘要

PROBLEM TO BE SOLVED: To output an answer to a question sentence and its document when a document collection is given. SOLUTION: This question answering system outputs the answer to the question sentence and its document once given the document collection and question sentence. The system has a document collection storage device 100 which stores document collections, an input device 102 which receives the question sentence, a question analyzing device 104 which decides a retrieval word collection and the kind of the question from the question sentence obtained from an input device, a document retrieving device 106 which retrieves a related document collection from the document collections stored in the document collection storage devices, an answer extracting device 108 which extracts answers to the question sentence from respective documents in the related document collection and generates an array of the answers and the documents having the answers extracted as an answer result to the question sentence, and an output device 110 which outputs the answer result.