EXTRACTOR, AND METHOD AND PROGRAM FOR EXTRACTION

摘要

PROBLEM TO BE SOLVED: To extract a keyword increasing appealing effects of a content.SOLUTION: The extractor according to the present application includes a calculation unit and an extraction unit. The calculation unit calculates an index value for each extraction model on the basis of a degree with which a keyword matching a predetermined condition is extracted by an extraction model for each extraction model calculating an evaluation value using its own method as a keyword stringed to a content and extracting a keyword on the basis of the calculated evaluation value. The extraction unit extracts a keyword stringed to a content or a keyword for extracting a content on the basis of the index value calculated by an extraction model weighed by an index value obtained by the calculation unit.SELECTED DRAWING: Figure 2