Table 5 Initial values of XGBoost hyperparameters and predetermined search scope.
From: Method and application of stability prediction model for rock slope
Parameter name | Parameter meaning | Range | Initial value |
|---|---|---|---|
learning_rate | Learning rate | [0.01,1] | 0.3 |
max_depth | Maximum depth | [1,20] | 6 |
subsample | Subsample proportion | (0.1,1] | 1 |
colsample_bytree | Column sample proportion | (0.1,1] | 1 |
Gamma | Minimum loss | [0,10] | 0 |
