Dynamically Dimensioned Search Grey Wolf Optimizer Based on Positional Interaction Information

Table 8

Sign test results of the five different GWO algorithms.

DGWO	GWO					mGWO					PGWO					EEGWO
	–				–	–				–	–				–	–				–
	Dimension					Dimension					Dimension					Dimension
	10	30	50	100		10	30	50	100		10	30	50	100		10	30	50	100
Wins (+)	13	12	12	12	6	11	11	11	11	5	13	12	12	12	6	8	8	7	5	10
Approximations (≈)	0	0	0	0	0	0	0	0	1	1	0	0	0	1	0	3	3	3	3	0
Losses (−)	0	1	1	1	4	2	2	2	1	4	0	1	1	1	4	2	2	3	5	0
Detected differences (α)	0.05	0.05	0.05	0.05	n	0.05	0.05	0.05	0.05	n	0.05	0.05	0.05	0.05	n	n	n	n	n	0.1

Note: “n” refers to nonsignificant at the significance levels of 0.05 and 0.1.