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Table 1 Comparison of TWA detection rate for NMF-Adaptive SM using the proposed fuzzy labeling classifier and LDA

From: Discriminant non-stationary signal features’ clustering using hard and fuzzy cluster labeling

Method

Sensitivity (%)

Specificity (%)

Classifier

TWA magnitude (μ V)

ECG database

NMF-Adaptive SM

92

95

Fuzzy labeling

5

52 Real ECGs

NMF-adaptive SM

87

91

LDA

5

52 Real ECGs

SM [25]

73

63

LDA

5

52 Real ECGs

MMA [25]

92

58

LDA

5

52 Real ECGs

Wavelet 1 [29]

77

NS

Wilcoxon rank-sum test

10

10 Synthetic ECGs

Wavelet 2 [30]

96

NS

LDA

10

2050 Synthetic ECGs

  1. The results of two well-known T-wave analysis methods (SM and MMA) and two wavelet-based TWA detection methods are also reported in the table. ‘NS’ indicates ‘Not Specified’.