Table 6.
MSE error achieved by the GA during the tunning and optimization of hyperparameters of the considered SAE structures for each domain of analysis, all technology materials.
| Material | Feature Domain | MSE Error | |
|---|---|---|---|
| Vibrations (i = 1) | Current (i = 2) | ||
| Metallic | Time (Ti group) | 1.071 × 10−4 | 3.689 × 10−4 |
| Frequency (Fi group) | 3.113 × 10−4 | 4.451 × 10−4 | |
| Time–Frequency (TFi group) | 4.348 × 10−4 | 1.137 × 10−4 | |
| Ceramic | Time (Ti group) | 7.8202 × 10−5 | 1.990 × 10−4 |
| Frequency (Fi group) | 1.894 × 10−4 | 2.786 × 10−4 | |
| Time–Frequency (TFi group) | 1.794 × 10−4 | 1.464 × 10−4 | |
| Hybrid | Time (Ti group) | 6.550 × 10−5 | 1.995 × 10−4 |
| Frequency (Fi group) | 3.543 × 10−4 | 2.778 × 10−4 | |
| Time–Frequency (TFi group) | 1.230 × 10−4 | 4.882 × 10−4 | |