CONTENT CLASSIFICATION METHOD, CONTENT CLASSIFICATION DEVICE, CONTENT CLASSIFICATION PROGRAM AND RECORDING MEDIUM RECORDING CONTENT CLASSIFICATION PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a content classification method classifying a content into one of a plurality of categories. SOLUTION: A computer executes this content classification method including procedures for: acquiring a sample with a label and a sample with no label; calculating a characteristic vector of a content with the label, and calculating a parameter of a generation model; calculating a parameter of the generation model when excluding the content from the sample with the label one by one, and calculating a combination parameter by use of a calculation result thereof; generating a discriminant function wherein the generation model and a bias correction model for correcting deviation of the generation model are combined by use of the combination parameter; calculating a characteristic vector of the content of a classification target; and selecting the category having maximum posteriori probability to the plurality of categories of the content by use of the discriminant function. COPYRIGHT: (C)2007,JPO&INPIT