OPTIMUM STANDPOINT ESTIMATION PROGRAM, DEVICE AND METHOD FOR ESTIMATING STANDPOINT OF ATTRIBUTES OF VIEWERS INTERESTED IN SAME SHARED CONTENT

摘要

PROBLEM TO BE SOLVED: To provide a program, etc., for estimating the standpoints of attributes of other viewers interested in one and the same shared content, while also estimating viewer attributes based on those standpoints.SOLUTION: An optimum standpoint estimation program comprises: standpoint list storage means which has stored therein a standpoint list containing tree-form standpoints and attribute words; and learning sentence information storage means which has stored therein a large number of learning sentence information relating to each attribute word. Also, plural keywords are extracted from a shared content. Next, regarding the shared content, a first vector having the keywords as elements and taking the occurrence frequency thereof as a value is derived, and regarding learning sentence information on attribute words which match the keywords as compared every keyword, a second vector having the words included in the learning sentence information as elements and taking the occurrence frequency thereof as a value is derived. The similarity of both vectors is calculated, and a similarity-mapped standpoint list with similarities included is generated, whereby the standpoint and attribute word which have the largest dispersion of similarity are derived for each layer of the standpoint list.