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Table 12 Feature selection for instrument recognition with auditory model features: 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 × 21=861 2 × 21=42 12 × 21=420 41 × 3=123 41 × 17=697
RF error rate 0.019 0.034 0.011 0.058 0.016
SVM number of features 41 × 21=861 2 × 21=42 12 × 21=420 41 × 3=123 41 × 8=328
SVM error rate 0.011 0.030 0.017 0.045 0.015