Patent ID: 8046384

Claim:
An information processing method executed by a computer for carrying out processing to recommend contents data to a user on the basis of metadata set in metadata-setting-target contents data on the basis of biological reactions exhibited by test participating persons each serving as a test participant during processes to output a plurality of test-object contents data listened to by said test participating persons, the information processing method comprising the steps of: identifying a user group including test participating persons exhibiting similar biological reactions; primarily carrying out a signal processing in order to analyze every one of said test-object contents data output to cause test participating persons pertaining to each of said user groups identified by said user group identification section to exhibit similar biological reactions and to analyze said test-object contents data in which metadata is to be set; secondarily carrying out signal processing in order to analyze said metadata-setting-target contents data in which metadata is to be set; setting metadata in said metadata-setting-target contents data as metadata expressing information representing similar biological reactions exhibited by said test participating persons pertaining to the same user group when listening to said test-object contents data analyzed by said primarily carried out signal processing to give an analysis result similar to an analysis result of said secondarily carried out signal processing on said metadata-setting-target contents data, determining a user group including test participating persons exhibiting biological reactions during processes to output said test-object contents data as biological reactions similar to biological reactions exhibited by said user, to which said contents data is to be recommended, during processes to output said test-object contents data so as to include said user in the same user group as said determined user group; and recommending contents data to said user on the basis of specific information selected from information, which has been set as metadata in metadata-setting-target contents data, as specific information representing biological reactions exhibited by test participating persons pertaining to the same user group as said user group determined at said user group identification step.