Color Face Recognition Based on Steerable Pyramid Transform and Extreme Learning Machines

Table 4

Comparison of parameter adjusting time and testing time of k-NN, FNN, SVM, and ELM: the AR database.

	ex1			ex2
	Parameter adjusting time (s)	Testing time (s)	Best parameters	Parameter adjusting time (s)	Testing time (s)	Best parameters
k-NN	4.3	0.12	𝑘=2	10.27	0.38	𝑘=2
SVM	119	0.28	(2^1, 2^−10)	508.12	1.157	(2^1, 2^−10)
ELM	12.79	0.034	𝑁=104	82.54	0.080	𝑁=122
FNN	1875	0.028	𝑁=44	11494	0.032	𝑁=54