Table 5.

Comparison with different optimization methods for KELM.

Class	Predicted as *
	QPSO				PSO				GA				GS
	1	2	3	4	1	2	3	4	1	2	3	4	1	2	3	4
1	20	0	0	0	18	2	0	0	18	2	0	0	17	1	0	2
2	2	18	0	0	3	17	0	0	3	17	0	0	2	18	0	0
3	1	0	18	1	0	0	19	1	0	0	19	1	1	0	17	2
4	0	0	0	20	0	0	3	17	0	0	4	16	1	0	2	17
Total	95.00%				88.75%				87.50%				86.25%