Fault Diagnosis of Belt Conveyor Based on Support Vector Machine and Grey Wolf Optimization

Table 3

Kernel parameter table.

Model building form	Penalty factor	Kernel function width
PCA-SVM	2	0.05
GWO-SVM	22.6545	12.4765
PCA-GWO-SVM	36.9754	4.9578
PCA-HGWO-SVM	25.3684	8.8765