Information-processing device, comment-prompting method, and computer-readable recording medium

A comment-prompting method comprising:

• a step 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 step to determine a group to which said subject user belongs from among a plurality of groups based on said user information;
• and
• a step 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.

A computer readable recording medium in which recorded is a comment-prompting program to make a computer execute:

• a step 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 step to determine a group to which said subject user belongs from among a plurality of groups based on said user information;
• and
• a step 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.