Table 1.
Feature combinations | S1 |
S2 |
S3 |
S4 |
S5 |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Accuracy | Precision | Recall | Accuracy | Precision | Recall | Accuracy | Precision | Recall | Accuracy | Precision | Recall | Accuracy | Precision | Recall | |
Signal peak (SP) and signal skewness (SSk) | 76.3 | 73.6 | 78.8 | 82.3 | 78.1 | 91.9 | 73.9 | 70.3 | 85.6 | 84.9 | 87.2 | 82.3 | 89.9 | 90.9 | 92.9 |
Signal mean (SM) and SSk | 79.5 | 78.0 | 74.0 | 83.7 | 91.2 | 82.3 | 82.6 | 85.7 | 75.8 | 81.4 | 89.5 | 71.1 | 84.1 | 87.1 | 75.9 |
Signal slope (SS) and SSk | 73.6 | 75.3 | 70.4 | 63.4 | 72.3 | 36.8 | 69.3 | 65.0 | 83.8 | 79.6 | 71.8 | 97.5 | 87.9 | 93.4 | 81.6 |
Signal kurtosis (SK) and SSk | 71.1 | 80.3 | 56.0 | 55.4 | 60.3 | 31.8 | 66.4 | 73.1 | 52.0 | 80.5 | 86.0 | 72.9 | 82.9 | 83.7 | 81.6 |
Signal variance (SV) and SSk | 78.5 | 74.1 | 87.7 | 87.4 | 88.5 | 85.9 | 60.6 | 61.0 | 59.2 | 74.4 | 70.1 | 84.8 | 90.4 | 89.2 | 92.1 |
SP and SK | 76.4 | 73.5 | 82.3 | 80.1 | 74.1 | 92.8 | 71.3 | 76.8 | 61.0 | 81.4 | 86.6 | 74.4 | 84.8 | 77.7 | 97.8 |
SM and SK | 73.5 | 71.8 | 77.3 | 70.4 | 74.7 | 61.7 | 74.5 | 84.0 | 60.6 | 79.1 | 85.2 | 70.4 | 79.1 | 72.3 | 94.2 |
SS and SK | 73.6 | 74.3 | 72.2 | 66.1 | 77.6 | 45.1 | 70.6 | 82.4 | 52.3 | 77.1 | 69.5 | 96.4 | 89.9 | 92.0 | 87.4 |
SV and SK | 76.4 | 75.0 | 79.1 | 85.7 | 90.2 | 80.1 | 65.2 | 70.6 | 52.0 | 67.3 | 70.9 | 58.8 | 81.9 | 82.2 | 81.6 |
SM and SP | 74.4 | 74.4 | 74.4 | 84.7 | 79.4 | 93.5 | 70.4 | 80.2 | 54.2 | 83.4 | 86.9 | 78.7 | 91.5 | 85.5 | 98.7 |
SM and SV | 74.7 | 72.9 | 78.7 | 86.3 | 86.5 | 85.9 | 72.2 | 88.7 | 50.9 | 78.7 | 81.9 | 73.6 | 76.7 | 82.5 | 67.9 |
SS and SP | 72.4 | 73.5 | 70.0 | 82.1 | 77.5 | 90.6 | 70.6 | 73.4 | 64.6 | 81.9 | 77.2 | 90.6 | 89.0 | 95.4 | 81.9 |
SS and SV | 70.4 | 72.2 | 66.4 | 86.6 | 92.1 | 80.1 | 65.9 | 65.4 | 67.5 | 78.5 | 72.4 | 92.1 | 84.7 | 94.0 | 74.0 |
SV and SP | 76.2 | 72.6 | 84.1 | 84.3 | 85.2 | 83.0 | 66.4 | 66.9 | 65.0 | 82.3 | 81.2 | 84.1 | 85.4 | 85.0 | 85.9 |
SM and SS | 73.5 | 77.1 | 66.8 | 67.5 | 70.0 | 61.4 | 68.6 | 66.8 | 74.0 | 80.0 | 72.0 | 98.2 | 88.1 | 87.8 | 88.4 |