Table 2.
Categorization accuracy (CA) for the stress scenarios in the experiments in Part 2.
| Metric | Categorization accuracy (CA)(%) | ||||
|---|---|---|---|---|---|
| Conference | Meditation | Pain | Mental stress | Emergency | |
| LFp | 77.9 | 75.6 | 37.1 | 75.6 | 89.5 |
| HFp | 89.1 | 80.5 | 81.7 | 64.1 | 93.8 |
| LFp/HFp | 81.2 | 84.6 | 64.9 | 81.7 | 64.2 |
| 2Dp | 98.5 | 82.9 | 86.1 | 99.2 | 98.8 |
| LFn | 80.0 | 75.6 | 64.6 | 82.4 | 64.8 |
| HFn | 81.2 | 82.9 | 64.4 | 80.2 | 64.2 |
| LFn/HFn | 81.2 | 84.6 | 64.9 | 81.7 | 64.2 |
| 2Dn | 88.2 | 84.6 | 66.3 | 93.1 | 82.1 |
| LFiA | 77.9 | 75.6 | 50.7 | 84.0 | 89.5 |
| HFiA | 80.6 | 75.6 | 80.2 | 63.4 | 100.0 |
| LFiA/HFiA | 81.2 | 81.3 | 59.9 | 80.9 | 61.7 |
| 2DiA | 100.0 | 81.7 | 86.9 | 100.0 | 100.0 |
The values for Meditation are low because Pre and Post are practically the same states (see Figure 6). Otherwise, the accuracy for Meditation is 100.0% for all metrics. The values in bold are the categorisation accuracies for the proposed 2D analysis.