Table 3.
Confusion matrices and evaluation indices for each subject
| Estimation [%] | Evaluation [%] | ||||||
|---|---|---|---|---|---|---|---|
| DEEP | LIGHT | REM | WAKE | Sens. | Spec. | Acc. | |
| Subject 1 | |||||||
| Actual | |||||||
| DEEP | 52.8 | 20.3 | 8.0 | 18.9 | 52.8 | 90.5 | 84.0 |
| LIGHT | 9.6 | 30.7 | 33.5 | 26.3 | 30.7 | 76.0 | 52.6 |
| REM | 10.3 | 28.4 | 48.4 | 12.8 | 48.4 | 73.8 | 67.1 |
| WAKE | 2.9 | 11.8 | 12.4 | 72.9 | 72.9 | 78.8 | 78.6 |
| Subject 2 | |||||||
| Actual | |||||||
| DEEP | 54.5 | 14.8 | 16.8 | 13.9 | 54.5 | 94.9 | 87.0 |
| LIGHT | 5.0 | 31.5 | 29.4 | 34.1 | 31.5 | 77.3 | 51.4 |
| REM | 1.7 | 28.5 | 43.5 | 26.2 | 43.5 | 76.0 | 70.5 |
| WAKE | 13.1 | 30.5 | 2.2 | 54.2 | 54.2 | 71.6 | 70.3 |
| Subject 3 | |||||||
| Actual | |||||||
| DEEP | 68.6 | 7.5 | 5.6 | 18.3 | 68.6 | 86.8 | 83.0 |
| LIGHT | 15.5 | 29.7 | 23.3 | 31.5 | 29.7 | 82.3 | 55.3 |
| REM | 12.5 | 33.2 | 40.0 | 14.3 | 40.0 | 83.3 | 74.9 |
| WAKE | 0.6 | 7.2 | 3.6 | 88.6 | 88.6 | 75.1 | 76.3 |
| Subject 4 | |||||||
| DEEP | 56.1 | 11.4 | 17.9 | 14.7 | 56.1 | 89.5 | 79.5 |
| LIGHT | 12.1 | 27.7 | 42.1 | 18.1 | 27.7 | 75.3 | 53.1 |
| REM | 7.2 | 46.1 | 29.2 | 17.4 | 29.2 | 67.9 | 60.4 |
| WAKE | 7.8 | 20.5 | 22.3 | 49.4 | 49.4 | 83.1 | 81.7 |
| Subject 5 | |||||||
| Actual | |||||||
| DEEP | 37.3 | 25.0 | 15.7 | 22.0 | 37.3 | 93.1 | 84.5 |
| LIGHT | 8.0 | 38.2 | 28.6 | 25.2 | 38.2 | 68.1 | 51.3 |
| REM | 5.4 | 38.7 | 40.9 | 15.0 | 40.9 | 74.8 | 66.5 |
| WAKE | 0.0 | 15.8 | 12.2 | 71.9 | 71.9 | 77.9 | 77.7 |
| Subject 6 | |||||||
| Actual | |||||||
| DEEP | 51.8 | 20.7 | 24.5 | 3.0 | 51.8 | 83.7 | 77.5 |
| LIGHT | 13.4 | 35.5 | 31.6 | 19.4 | 35.5 | 75.4 | 54.8 |
| REM | 24.2 | 35.0 | 36.2 | 4.6 | 36.2 | 73.1 | 68.6 |
| WAKE | 19.5 | 22.0 | 15.5 | 43.0 | 43.0 | 86.6 | 79.0 |