Fig. 9From: Classification of audio signals using spectrogram surfaces and extrinsic distortion measuresRanking efficacy of the 10 best features of the combined model, determined by means of the performance of the random forest classifier. a The ranking is presented for the binary task of identifying bronchiectasis; bronchiolitis (b); COPD (c); pneumonia (d); URTI (e). Finally (f) presents the ranking for the multi-class task of classifying the five pathologiesBack to article page