| 摘要 |
An information-processing device (201), comprises: a user information acquisition part (3) configured to acquire user information indicating at least one of an attribute of a subject user, said subject user's content of opinion with respect to one or more evaluation subjects, and said subject user's operation history; a group determination part (4) configured to determine a group to which said subject user belongs from among a plurality of groups based on user information acquired by said user information acquisition part (3); and an input-prompting part (5) configured to present, to said subject user based on said group to which said subject user belongs, prompting information for inducing said subject user to input a new evaluation subject or content of opinion with respect to a presented evaluation subject which is an evaluation subject presented to said subject user.
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