| 摘要 |
The present invention provides an information retrieving apparatus and the like which replies a search result accurately to a question from the user. In the present invention, sentence information of a sentence in collected documents is stored, information of a questioning sentence from the user is received from a terminal 2, the questioning sentence from the user is decomposed into segments (S10), documents having common arc segments are extracted from segments in the questioning sentence from the user, the documents are compared with the questioning sentence, and a leaf segment missing in the questioning sentence is retrieved (S12 to S16), and the search result is transmitted to the terminal 2 (S19). |
