Table 6 Prediction performance of the BO-RFR model on the blind validation dataset.

From: Research on the predicted height of water-conducting fracture zones based on the BO-RFR model and SHAP analysis

Coal seam

Sample size

R2

RMSE

MAE

MAPE

Carboniferous-Permian

10

0.874

3.285

2.890

0.048

Jurassic

10

0.909

11.552

9.118

0.084