METHOD AND APPARATUS FOR DETERMINING PREDICTIVE TAG VALUE EACH OF A PLURALITY OF MUSIC TAG FOR GENERATING MAPPING FUNCTION OF MUSIC

摘要

Disclosed are a method and an apparatus for determining respective predictive tag values of a plurality of music tags for generating a mapping function of music. The disclosed method is a method for determining the respective predictive tag values of a plurality of music tags used to generate a mapping function of music to which music tags are not assigned. The method comprises the following steps of: searching for one or more reference music having a positive tag value of a target music tag among a plurality of reference music to which music tags are assigned; calculating first reference music with a minimum music distance from the music, among the one or more reference music, and calculating second reference music with a minimum music distance from the first reference music, wherein the music distance is calculated based on n number of pieces of sound information constituting music; calculating first dissimilarity between the music and the first reference music and second dissimilarity between the first reference music and the second reference music; and determining a predictive tag value of the target music tag as positive when the first dissimilarity is greater than the second dissimilarity, and determining the predictive tag value of the target music tag as negative when the first dissimilarity is smaller than the second dissimilarity. The purpose of the present invention is to expand a single class classifier (NNDD) utilizing only positive information of music tags to a multiple predictor (MLNNDD).