Assembly Quality Inspection of Combine Harvester Based on Whale Algorithm Optimization LSSVM

Table 5

Classification accuracy using different features.

Method	Information entropy	Time-domain characteristics	Frequency-domain characteristics	Mixed features
LSSVM	0.645	0.615	0.69	0.825
GA-LSSVM	0.69	0.64	0.805	0.875
PSO-LSSVM	0.665	0.63	0.7	0.86
WOA-LSSVM	0.67	0.665	0.805	0.865
IWOA-LSSVM	0.69	0.67	0.815	0.905