Comment analysis system, comment analysis method and program for comment analysis

摘要

A behavior information acquiring unit 103 for acquiring behavior information indicating behavior of a user of a community site, and a user specifying unit 104 for identifying a user whose behavior appears through behavior information has changed among users of a community site, and behavior Including the comment information extraction unit 105 for extracting the comment information that the changed user responded as a comment responder from the database 100, extracting comment information of other users who actually reacted on the community site By doing so, the speaker's sentiment value is not limited to a large comment, and it is possible to extract a wide range of comment information that affects a user's behavior by a certain factor and use it for marketing.