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

Table 1

The effect of IV.

IV range	Predictive effect
IV ≤ 0.02	Almost no correlation
0.02 ≤ IV ˂ 0.1	Weak correlation
0.1 ≤ IV ˂ 0.3	Medium correlation
0.3 ≤ IV ˂ 0.5	Strong correlation
IV ˃ 0.5	Excellent, need to confirm