Table 6.
Confusion matrix for the test set of the summarised data. Values in bold are correctly classified behaviour events. V. Swim is vertical swimming behaviour.
| Predicted Behaviour | Performance Metric | |||||||
|---|---|---|---|---|---|---|---|---|
| Observed Behaviour | Chew | Rest | Swim | V. Swim | Sensitivity | Specificity | Precision | F-Measure |
| SVM (2 s epoch test) | ||||||||
| Chew | 13 | 0 | 1 | 0 | 68.4% | 98.4% | 92.9% | 78.8% |
| Rest | 2 | 20 | 2 | 0 | 100% | 93.6% | 83.3% | 90.9% |
| Swim | 4 | 0 | 32 | 0 | 91.4% | 91.5% | 88.9% | 90.1% |
| V. Swim | 0 | 0 | 0 | 8 | 100% | 100% | 100% | 100% |
| SVM (1 s epoch test) | ||||||||
| Chew | 8 | 2 | 4 | 0 | 42.1% | 90.5% | 57.1% | 48.5% |
| Rest | 3 | 19 | 2 | 0 | 90.5% | 91.8% | 79.2% | 84.4% |
| Swim | 8 | 0 | 28 | 0 | 82.4% | 83.3% | 77.8% | 80% |
| V. Swim | 0 | 0 | 0 | 8 | 100% | 100% | 100% | 100% |
| RF (2 s epoch test) | ||||||||
| Chew | 10 | 0 | 4 | 0 | 77% | 94.2% | 71.4% | 74.1% |
| Rest | 1 | 21 | 2 | 0 | 100% | 95.1% | 87.5% | 93.3% |
| Swim | 2 | 0 | 34 | 0 | 85% | 95.2% | 94.4% | 89.5% |
| V. Swim | 0 | 0 | 0 | 8 | 100% | 100% | 100% | 100% |
| RF (1 s epoch test) | ||||||||
| Chew | 7 | 2 | 5 | 0 | 70% | 90.3% | 50% | 58.3% |
| Rest | 1 | 21 | 2 | 0 | 91.3% | 95% | 87.5% | 89.4% |
| Swim | 2 | 0 | 34 | 0 | 83% | 95.1% | 94.4% | 88.3% |
| V. Swim | 0 | 0 | 0 | 8 | 100% | 100% | 100% | 100% |
| XGB (2 s epoch test) | ||||||||
| Chew | 11 | 0 | 3 | 0 | 68.8% | 95.5% | 78.6% | 73.3% |
| Rest | 1 | 21 | 2 | 0 | 100% | 95.1% | 87.5% | 93.3% |
| Swim | 4 | 0 | 32 | 0 | 86.5% | 91.1% | 88.9% | 87.7% |
| V. Swim | 0 | 0 | 0 | 8 | 100% | 100% | 100% | 100% |
| XGB (1 s epoch test) | ||||||||
| Chew | 5 | 1 | 8 | 0 | 55.6% | 87.7% | 35.7% | 43.5% |
| Rest | 0 | 21 | 3 | 0 | 91.3% | 95% | 87.5% | 89.4% |
| Swim | 4 | 1 | 31 | 0 | 73.8% | 87.5% | 86.1% | 79.5% |
| V. Swim | 0 | 0 | 0 | 8 | 100% | 100% | 100% | 100% |