CATEGORIZING APPARATUS AND CATEGORIZING METHOD

A categorizing apparatus according to the present invention includes: a selected object position determining unit which determines a first position of an object selected by a user in a first region; an identifying unit which identifies one or more objects which are related to the selected object; a parameter assigning unit which assigns a parameter to each of the related objects according to a degree of relatedness between each of the related objects and the selected object, the parameter contributing to a predetermined relationship which defines tracking property of the related object to the selected object when the selected object is moved from the first position. Hence the categorizing apparatus allows the user to intuitively categorize content items through his or her operation, so that the content items are categorized as the user desires.