[Retracted] Research on Motor Bearing Fault Diagnosis Based on the AdaBoost Algorithm and the Ensemble Learning with Bayesian Optimization in the Industrial Internet of Things

Table 4

Model-4 hyperparametric search range.

Ensemble method	Number of learners	Learning rate	Maximum number of splits	Number of predictor variables to be collected
Bag, AdaBoost, RUSBoost	10–500	0.001–1	0–2399	1–25