| 摘要 |
PROBLEM TO BE SOLVED: To provide a document retrieval system and program for efficiently retrieving requested documents with high accuracy while reducing input time. SOLUTION: The document retrieval system comprises a storage part 28 writing retrieval sentences input to an input part 24 and reference operation performed to documents retrieved from a storage device 34 by a retrieval part 26 in regard to the retrieval sentence, in time series into a storage device 36 for every session; a retrieval sentence creating part 30 retrieving a session to which a retrieval sentence including terms included in a new retrieval sentence is input, out of the sessions stored in the storage device 36 when a new session is started to input the new retrieval sentence to the input part, and acquiring the retrieval sentence input to the input part immediately before the reference operation, out of the retrieved session; and an output part 32 outputting the acquired retrieval sentence as the retrieval sentence with a high possibility of retrieving an appropriate document corresponding to the new retrieval sentence, by the retrieval part. COPYRIGHT: (C)2008,JPO&INPIT
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