Estimating Redundancy Information of Selected Features in Multi-dimensional Pattern Classification
This paper proposes a novel criterion for estimating the redundancy information of selected feature sets in multi-dimensional pattern classification. An appropriate feature selection process typically maximizes the relevancy of features to each class and minimizes the redundancy of features between selected features. Unlike to the relevancy information that can be measured by mutual information, however, it is difficult to estimate the redundancy information because its dynamic range is varied by the characteristics of features and classes.
By utilizing the conceptual diagram of the relationship between candidate features, selected features, and class variables, this paper proposes a new criterion to accurately compute the amount of redundancy. Specifically, the redundancy term is estimated by conditional mutual information between selected and candidate features to each class variable, which does not need a cumbersome normalization process as the conventional algorithm does. The proposed algorithm is implemented into a speech/music discrimination system to evaluate classification performance. Experimental results by varying the number of selected features verify that the proposed method shows higher classification accuracy than conventional algorithms.
|174||Domestic Journal||Yoomi Hur, Young-Cheol Park, Seok-Pil Lee, Dae Hee Youn "Efficient Individualization Method of HRTFs Using Critical-band Based Spectral Cue Control" in 한국음향학회지, vol.30, 제 4호, pp.167-180, 2011|
|173||International Journal||Chi-Sang Jung, Hyunson Seo, Hong-Goo Kang "Estimating Redundancy Information of Selected Features in Multi-dimensional Pattern Classification" in Pattern Recognition Letters, vol.32, issue 4, pp.590-596, 2011|
|172||Domestic Journal||최민석, 신호선, 황영수, 강홍구 "음성 신호에서의 시간-주파수 축 충격 잡음 검출 시스템" in 한국음향학회지, vol.30, 제 2호, pp.73-79, 2011|
|171||International Conference||Myung-Suk Song, Cha Zhang, Dinei Florencio, Hong-Goo Kang "Enhancing loudspeaker-based 3D audio with room modeling" in MMSP, 2010|
|170||International Journal||Dong-il Hyun, Donggeum Lee, Youngcheol Park, Dae Hee Youn, Jeongil Seo "Joint Channel Coding Based on Principal Component Analysis" in ETRI Journal, vol.32, issue 5, pp.831-834, 2010|
|169||International Conference||Chi-Sang Jung, Kyu J. Han, Hyunson Seo, Shrikanth S. Narayanan, Hong-Goo Kang "A Variable Frame Length and Rate Algorithm Based on the Spectral Kurtosis Measure for Speaker Verification" in INTERPSEECH, pp.2754-2757, 2010|
|168||International Conference||Ming Li, Chi-Sang Jung, Kyu J. Han "Combining Five Acoustic Level Modeling Methods for Automatic Speaker Age and Gender Recognition" in INTERSPEECH, pp.2826-2829, 2010|
|167||Domestic Journal||송정욱, 오현오, 강홍구 "통합 음성/오디오 부호화를 위한 새로운 MPEG 참조 모델" in 전자공학회논문지, vol.47 SP, 제 5호, pp.74-80, 2010|
|166||Domestic Journal||전세운, 박영철, 윤대희 "다채널 포맷 변환과 공간적인 입체 음향 정보의 효과적인 유지에 대한 연구" in 전자공학회논문지, vol.47 SP, 제 5호, pp.34-44, 2010|
|165||Domestic Journal||오현오, 정양원 "객체 오디오 부호화 표준 SAOC 기술 및 응용" in 전자공학회논문지, vol.47 SP, 제 5호, pp.45-55, 2010|