Table 4.
Optimization of CatBoost parameter values by Optuna (-10dB).
| Fault characteristics | Iterations | Depth | Learning rate | Random strength |
|---|---|---|---|---|
| MFDE | 1077 | 10 | 0.137 | 10 |
| CMFDE | 1096 | 9 | 0.148 | 5 |
| RCMFDE | 1002 | 4 | 0.159 | 2 |
| HFDE | 1093 | 7 | 0.163 | 10 |
| TSMFDE | 1042 | 7 | 0.196 | 7 |
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