Patent ID: 7738982
Filing Date: 2010-06-15
Classification: G10H,G10L

Abstract:
1. An information processing apparatus which arithmetically operates a characteristic amount of content data, comprising: first arithmetic operation means for using a low level characteristic amount extraction expression, which receives the content data or meta data corresponding to the content data as an input and outputs a low level characteristic amount, to arithmetically operate the low level characteristic amount; second arithmetic operation means for using a high level characteristic amount extraction expression, which receives the low level characteristic amount arithmetically operated by said first arithmetic operation means as an input and outputs a high level characteristic amount representative of a characteristic of the content data, to arithmetically operate the high level characteristic amount; calculation means for calculating an error between the high level characteristic amount arithmetically operated by said second arithmetic operation means and a high level characteristic amount obtained in advance and corresponding to the content data; production means for producing an error estimation expression, which receives the low level characteristic amount as an input and outputs the error, by learning wherein the error calculated by said calculation means is used as teacher data; and arithmetic operation control means for applying, when the high level characteristic amount corresponding to the content data is to be acquired, the low level characteristic amount arithmetically operated by said first arithmetic operation means to the error estimation expression produced by said production means to estimate the corresponding error and cause said second arithmetic operation means to arithmetically operate the high level characteristic amount in response to the estimated error.