Research on the Application of Bayesian-Optimized XGBoost in Minor Faults in Coalfields

Table 2

The optimization results of EI, UCB, PI, and improved PI.

Acquisition function	Max	Min	Average	Std
PI	−0.3533	−36811	−1196	5644
Improved PI	−0.0149	−11788	−377	1687
EI	−1.2309	−90016	−5162	15760
UCB	−0.2478	−68633	−4156	12246