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KMID : 0878220110230040458
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Journal of Sasang Constitutional Medicine
2011 Volume.23 No. 4 p.458 ~ p.470
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Application of Vocal Properties and Vocal Independent Features to Classifying Sasang Constitution
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Kim Keun-Ho
Kang Nam-Sik
Ku Bon-Cho
Kim Jong-Yeol
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Abstract
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Objectives: Vocal characteristics are commonly considered as an important factor in determining the Sasang constitution and the health condition. We have tried to find out the classification procedure to distinguish the constitution objectively and quantitatively by analyzing the characteristics of subject’s voice without noise and error.
Methods: In this study, we extract the vocal features from voice selected with prior information, remove outliers, minimize the correlated features, correct the features with normalization according to gender and age, and make the discriminant functions that are adaptive to gender and age from the features for improving diagnostic accuracy.
Results and Conclusions : Finally, the discriminant functions produced about 45% accuracy to classify the constitution for every age interval and every gender, and the diagnostic accuracy was meaningful as the result from only the voice.
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KEYWORD
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vocal feature, reduction of correlation, removal of outliers, normalization, diagnostic accuracy
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