Table 8 Feature extraction, feature selection, and classification methods in previous works and the proposed method
Method | Features | Feature selection | Classifier |
|---|---|---|---|
De Chazal [1] | Morphology, intervals, lead A + B | Feature set wrapper | wLDA |
Llamedo [11] | WT, intervals, lead A + B | Wrapper | wLDA |
Mar [19] | Morphology, WT, intervals, lead A + B | Wrapper, wLDA | MLP |
de Lannoy [20] | Intervals, HOS, lead A + B | Feature set wrapper | wSVM |
Doquire [21] | Morphology, intervals, HOS, lead A | Ranking | wSVM |
de Lannoy [22] | Morphology, intervals, HOS, lead A | Ranking, wrapper | wCRF + L1 |
Zhang [23] | Morphology, intervals, lead A + B | Ranking, wrapper | SVM ensemble |
Park [24] | HBF, intervals, lead A | - | Hierarchical SVM |
Proposed method | Random projections, intervals, lead A | - | SVM + threshold |