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Table 9 Feature selection for pitch classification with auditory model and DFT: number of selected features and error rates

From: A computational study of auditory models in music recognition tasks for normal-hearing and hearing-impaired listeners

Method

No selection

Channel groups

Feature groups

  

Forward

Backward

Forward

Backward

RF: number of features

41 × 29 = 1189

4 × 29 = 116

35 × 29 = 1015

41 × 2 = 82

41 × 28 = 1148

RF: error rate

0.08

0.10

0.07

0.09

0.08

SVM: number of features

41 × 29 = 1189

5 × 29 = 145

23 × 29 = 667

41 × 2 = 82

41 × 9 = 369

SVM: error rate

0.07

0.10

0.07

0.09

0.07