Best-performing combination | ||||
---|---|---|---|---|
Subject No. | Channel | Time interval | Optimal feature set | Classification accuracy |
1 | 3 | 9-15 s | Δ[O2Hb] mean, variance, skewness, kurtosis | 91.7% |
2 | 2 | 5-15 s | Δ[O2Hb] mean, variance | 79.2% |
3 | 3 | 9-15 s | Δ[O2Hb] variance, skewness, kurtosis | 79.2% |
4 | 2 | 8-14 s | Δ[O2Hb] mean, variance | 75.0% |
5 | 3 | 9-15 s | Δ[O2Hb] mean | 75.0% |
6 | 3 | 7-15 s | Δ[O2Hb] mean, variance, skewness | 91.7% |
7 | 1 | 8-14 s | Δ[O2Hb] skewness | 70.8% |
8 | 2 | 7-12 s | Δ[O2Hb] mean, variance | 75.0% |
9 | 1 | 5-15 s | Δ[O2Hb] mean, variance | 83.3% |
10 | 3 | 5-15 s | Δ[O2Hb]variance, skewness, kurtosis | 87.5% |
11 | 3 | 7-15 s | Δ[O2Hb]variance, kurtosis | 87.5% |
12 | 2 | 11-15 s | Δ[O2Hb] mean, variance, skewness, kurtosis | 79.2% |
Overall |  |  |  | 81.3 ± 7.0% |