An Efficient Imperialist Competitive Algorithm for Solving the QFD Decision Problem

Table 3

The results of washing machine case using G-ICA and RST2ANU.

		Number of variables			G-ICA (s)				RST2ANU (s)
		Total	Real	Integer	(s)	FEs1	Mean1	Std1	(s)	FEs2	Mean2	Std2
1	5	10	5	5	3.4		1373.6	0.8570	29.9		1373.1	0.7462	8.79
2	10	20	10	10	130.1		2714.9	12.8653	972.3		2716.4	4.5474	7.47
3	15	30	15	15	1180.4		4043.1	10.8875	9585.5		4044.2	11.2231	8.12
4	25	50	25	25	23609.23		8653.68	—	118050.15		8556.23	—	5.00

Index: —the number of possible engineering characteristics, —the average running time in seconds, FEs—the average number of function evaluations, mean—the average objective function value, and Std—the standard deviations of objective function values.