Table 2 Comparison of model performance based on 20 repetitions of 5-fold cross-validation (mean ± standard deviation).
Coal seam | model | R2 | RMSE | MAE | MAPE |
|---|---|---|---|---|---|
Carboniferous-Permian | BO-RFR | 0.895 ± 0.010 | 4.331 ± 0.198 | 3.256 ± 0.145 | 0.070 ± 0.004 |
BO-XGBoost | 0.885 ± 0.015 | 4.518 ± 0.296 | 3.556 ± 0.274 | 0.078 ± 0.007 | |
BO-GBDT | 0.867 ± 0.023 | 4.843 ± 0.421 | 3.609 ± 0.352 | 0.078 ± 0.009 | |
BO-Adaboost | 0.817 ± 0.010 | 5.709 ± 0.150 | 4.261 ± 0.170 | 0.094 ± 0.004 | |
Jurassic | BO-RFR | 0.924 ± 0.014 | 10.659 ± 1.004 | 8.793 ± 0.867 | 0.089 ± 0.009 |
BO-XGBoost | 0.868 ± 0.057 | 13.850 ± 2.891 | 10.239 ± 2.167 | 0.089 ± 0.021 | |
BO-GBDT | 0.902 ± 0.020 | 12.101 ± 1.237 | 9.057 ± 0.965 | 0.084 ± 0.011 | |
BO-Adaboost | 0.845 ± 0.010 | 15.322 ± 0.523 | 13.225 ± 0.745 | 0.129 ± 0.007 |