Patent ID: 8725735
Filing Date: 2014-05-13
Classification: G06Q

Abstract:
1. An information processing system for analyzing a selected content cluster among a plurality of content clusters, where the selected content cluster includes a group of associated content and is in correspondence with a plurality of respective user clusters, each user cluster including a respective group of associated users, the system comprising a micro-processor operating under the instructions of a computer program, which causes the micro-processor to include: an association data acquisition unit that acquires association data, which includes respective combinations of the content belonging to the selected content cluster, the users belonging to the plurality of user clusters, and a plurality of times at which the users took action concerning the content of the selected content cluster; a statistic amount calculation unit that calculates statistics for each of the user clusters based on the plurality of times of the association data, wherein the statistics for each of the user clusters includes: (i) an average (AVG) representing an average of all the times that the users of a given one of the plurality of user clusters took action concerning the content of the selected content cluster, (ii) a standard deviation (STD) representing an standard deviation of all the times that the users of the given one of the plurality of user clusters took action concerning the content of the selected content cluster, and (iii) computing a time scope for each user cluster, where AVG−STD time scope≦AVG+STD; a determining unit that determines whether or not the selected content cluster is to be divided into at least two content clusters, the determination being based on whether one of the time scopes does not overlap any of the other time scopes, and if so then the determination is affirmative and the selected content cluster is to be divided into the at least two content clusters; a dividing unit that divides the selected content cluster into at least two content clusters when the determination is in the affirmative, and specifies for each of the at least two content clusters at least one of the user clusters to be in correspondence therewith; and a setting unit that sets respective groups of the content into each of the at least two content clusters based on the association data.