Table 9 Optimal values for hyperparameters of HGB model.

From: Advanced machine learning techniques for predicting dump slope stability in Indian opencast coal mines

Hyperparameters

Ranges (lower limit, upper limit)

Best result

max_bins

2,255

255

max_depth

1,5

5

learning_rate

0.0001,0.1

0.1

max_iter

50, 100

100

l2_regularization

0,1

0

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