Aerodynamic Parameter Identification of Projectile Based on Improved Extreme Learning Machine and Ensemble Learning Theory

Table 2

Test results of different test functions.

Function	Algorithm	Size	Max	Min	Mean	Iteration	Theoretical value
Sphere	PSO	50	0.515	0.034	0.130	600	0
		100	0.050	0.004	0.018	400	0
		150	0.006	0.001	0.002	350	0
	IPSO	50	0.178	0.023	0.096	450	0
		100				300	0
		150				200	0
Schaffer	PSO	50	0.037	0.008	0.011	650	0
		100	0.037	0.009	0.010	450	0
		150	0.009		0.008	400	0
	IPSO	50	0.013	0.005	0.010	500	0
		100	0.001			300	0
		150				200	0