Permeability Predictions for Tight Sandstone Reservoir Using Explainable Machine Learning and Particle Swarm Optimization

Table 1

XGBoost algorithm main hyperparameter default values, search interval, and PSO optimization results.

No.	Hyperparameter	Meaning	Defaults	Search interval	Optimization results
1	n_estimators	Number of iterations	100	[50, 500]	300
2	Learning_rate	Learning rate	0.3	[0.01, 0.3]	0.1
3	Max_depth	Maximum height of the tree	6	[3, 8]	3