| 摘要 |
PROBLEM TO BE SOLVED: To display the relation, etc., among information groups having been classified in an easy-to-see state by receiving and classifying text information, etc. SOLUTION: A processing part 110 performs a process for detecting the number of common keywords including a 2nd keyword group in common as to elements belonging to two arbitrary sets in a group of specified set (text group) for all combinations of the two arbitrary sets (step S704), and makes the distances between the respective sets in the set group correspond to the number of common keywords and displays information showing the relation among the respective sets while taking the distances into consideration (steps S706, S708), the relation, etc., among the information groups having been received and classified can be displayed in an easy-to-see state.
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