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

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

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

ISSN: 1472-6947