PENDING
Please predict whether this patent is acceptable.PATENT ABSTRACT: It is an object to attain both of a privacy protection and an elimination of a timing gap. The object is accomplished by providing: an estimating unit for estimating use possibility of a service for each user; a classifying unit for classifying a plurality of users into groups on the basis of a similarity between the use possibility and context information of the plurality of users according to the service; and a generating unit for generating disclosure information which is disclosed to a providing source side of the service for each group on the basis of the context information of the users included in the group.