| 摘要 |
PROBLEM TO BE SOLVED: To provide a similar group extractor which extracts the groups of the same feature similarity, displays the objects constructing the extracted groups to discriminate them from the objects which are not constructing the extracted groups and can easily group these objects based on the similarity of them. SOLUTION: The taste vectors of plural users are acquired (S41), and the taste similarity of users is acquired (S42). A taste similarity range is designated (S43), and the similar user groups whose taste similarities of all component users are included in a taste similarity range that is defined by the said taste similarity range designation processing (S44). Then the user display processing is carried out to discriminate the users constructing the similar user groups from the users who are not constructing the similar user groups (S45).
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