PROBLEM TO BE SOLVED: To provide a prediction server, program and method capable of highly accurately analyzing future interest tendency of a large indefinite number of users from the number of future short-time comments.;SOLUTION: The prediction server includes: learning information storage means that identifies posting tendency by the number of comments in an initial determination time for each content and prestores it as learning information: prediction object comment retrieval means that counts the number of comments for each unit time in the initial determination time; initial tendency discrimination means that discriminates which one of posting tendencies it is from a transition state in the number of comments in the initial determination time; initial determination time retrieval means that retrieves content similar to the transition state of the number of comments in the initial determination time, from the learning information storage means; and number-of-comment prediction means that derives the transition state of the number of comments after the initial determination time, corresponding to the retrieved content, as a future transition state in the number of comments in the prediction object content.;COPYRIGHT: (C)2014,JPO&INPIT
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