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Table 4 Comparison with related works in 5 years using the same heart sound dataset

From: Diagnosis of cardiac abnormalities based on phonocardiogram using a novel fuzzy matching feature extraction method

References Feature extraction Classifier Accuracy (%) Sensitivity (%) Specificity (%)
[8] DWT + MFCCs SVM 97.9 98.2 99.4
[8] DWT SVM 92.3 92.3 98.4
[8] MFCCs SVM 91.6 87.3 96.6
[5] Deep wavenet 98.2 97.0 92.5
[31] PCA Random forest 94.8 94.7 98.7
[31] PCA KNN 91.6 91.5 97.9
[37] CNN 98.7 98.7 99.6
This study FMFE SVM 94.9 95.7 98.8
  FMFE KNN 90.0 90.5 97.5
  FMFE Random forest 96.5 97.0 99.1
  FMFE MLP 93.1 93.7 98.3
  FMFE + MFCCs SVM 99.0 99.4 99.7
  FMFE + MFCCs KNN 98.4 98.5 99.6
  FMFE + MFCCs Random forest 98.2 98.5 99.6
  FMFE + MFCCs MLP 96.9 97.0 99.2
  1. –Denotes that there is no feature extraction method was used