| 摘要 |
PROBLEM TO BE SOLVED: To support revision of an efficient classification system while maintaining overall consistency. SOLUTION: A common viewpoint field retrieval means 2 extracts at least two fields each provided with a category in a common viewpoint in reference to a classification system information storage means 1. A hypothesis definition means 5 compares the categories provided in the common viewpoint of the extracted fields 3, 4, sets the category present only in a part of the field of the extracted fields as a category to be added, and defines a hypothesis that the category is added to another field. A hypothesis verification means 7 detects additional category matching information belonging to the category to be added when the category to be added is added according to the hypothesis, and decides whether the hypothesis is proper or not based on the amount of the detected additional category matching information. The hypothesis verification means 7 outputs the hypothesis decided that it is proper as a revision idea 8. COPYRIGHT: (C)2011,JPO&INPIT
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