Table 4.
Performance comparison of all EMD and all DWT based features and selected features by ReliefF algorithm. Performances in the left column are all features, performances in the right column are selected features by ReliefF.
(Acc, accuracy, Rec, recall, Spe, specificity, Pre, precision, F1, F1-score).
| Methods/Algorithm | Performances(%) for all features |
Performances(%) for selected features |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Acc | Rec | Spe | Pre | F1 | Acc | Rec | Spe | Pre | F1 | |
| EMD/SVM Linear | 86.0 | 88.9 | 83.2 | 84.0 | 86.4 | 89.5 | 91.6 | 87.4 | 87.8 | 89.7 |
| EMD/SVM Quadratic | 84.7 | 87.5 | 81.8 | 82.7 | 85.1 | 87.3 | 89.2 | 85.4 | 85.9 | 87.5 |
| EMD/SVM Cubic |
83.7 |
86.5 |
80.8 |
81.8 |
84.1 |
86.5 |
89.0 |
84.0 |
84.7 |
86.8 |
| DWT/SVM Linear | 96.5 | 97.5 | 95.5 | 95.5 | 96.5 | 97.2 | 98.3 | 96.1 | 96.2 | 97.2 |
| DWT/SVM Quadratic | 94.4 | 96.3 | 92.6 | 92.8 | 94.5 | 98.1 | 99.0 | 97.3 | 97.3 | 98.2 |
| DWT/SVM Cubic |
93.9 |
95.8 |
91.9 |
92.2 |
94.0 |
97.0 |
98.0 |
96.0 |
96.0 |
97.0 |
| EMD + DWT/SVM Linear | 97.6 | 98.6 | 96.5 | 96.5 | 97.6 | 98.4 | 99.5 | 97.3 | 97.4 | 98.6 |
| EMD + DWT/SVM Quadratic | 96.2 | 97.5 | 95.0 | 95.1 | 96.2 | 98.1 | 99.3 | 97.0 | 97.1 | 98.2 |
| EMD + DWT/SVM Cubic | 95.3 | 96.6 | 93.9 | 94.1 | 95.3 | 98.0 | 99.2 | 96.8 | 96.9 | 98.1 |