| 摘要 |
PROBLEM TO BE SOLVED: To provide a filtering function that can be easily used for a document whose importance changes according to the time. SOLUTION: Importance of each search condition and a valid period of the importance are set in association with each other. On searching log data matching the set search condition, calculation is performed on a score of the log data matching the search condition based on: the execution time of the search; the importance of the search condition; and the valid period of the importance. Log data having the score thus calculated exceeding a predetermined threshold is extracted. COPYRIGHT: (C)2009,JPO&INPIT
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