An Improved Sparrow Search Algorithm and Its Application in HIFU Sound Field

Table 5

Experimental results of different improvement strategies.

Func	Algorithm	F min	Avg	Std
F2	SSA	0	1.6886E − 318	0
	SSA01	0	0	0
	SSA02	0	0	0
	SSA03	0	0	0
	ISSA	0	0	0
F5	SSA	4.0723E − 09	4.2421E − 05	1.5023E − 05
	SSA01	3.5211E − 09	3.8830E − 07	1.1986E − 05
	SSA02	3.0467E − 09	1.4628E − 06	5.3375E − 06
	SSA03	3.4656E − 09	1.3116E − 06	4.2906E − 06
	ISSA	1.0824E − 09	9.7182E − 08	2.8898E − 06
F7	SSA	3.5673E − 06	1.6544E − 04	1.0126E − 04
	SSA01	1.4294E − 06	1.1571E − 04	9.2207E − 05
	SSA02	3.3467E − 06	6.7627E − 05	7.4811E − 05
	SSA03	3.0225E − 06	1.5858E − 04	7.9233E − 05
	ISSA	1.3805E − 06	4.4199E − 05	7.3731E − 05
F9	SSA	0	0	0
	SSA01	0	0	0
	SSA02	0	0	0
	SSA03	0	0	0
	ISSA	0	0	0
F12	SSA	2.8537E − 13	1.1162E − 11	2.8143E − 09
	SSA01	1.8369E − 15	3.3307E − 13	9.0648E − 11
	SSA02	3.0190E − 15	7.2377E − 12	1.9612E − 10
	SSA03	3.5533E − 16	5.3059E − 15	1.8971E − 10
	ISSA	2.9885E − 16	2.0635E − 13	4.9317E − 11
F13	SSA	2.0502E − 12	7.3101E − 10	1.3270E − 09
	SSA01	1.8026E − 14	5.9631E − 14	2.5349E − 10
	SSA02	7.8553E − 13	1.7663E − 10	2.5502E − 10
	SSA03	3.1532E − 14	4.6639E − 11	2.0181E − 10
	ISSA	1.1261E − 14	3.1549E − 14	1.6795E − 10
F14	SSA	0.9980	10.7632	7.2905
	SSA01	0.9980	1.1187	2.7074
	SSA02	0.9980	1.1158	2.8284
	SSA03	0.9980	1.2208	2.7056
	ISSA	0.9980	1.1002	2.1311
F21	SSA	−10.1532	−10.1531	6.1446E − 05
	SSA01	−10.1532	−10.1532	9.2352E − 04
	SSA02	−10.1532	−10.1532	1.7586
	SSA03	−10.1532	−10.1532	5.9467E − 05
	ISSA	−10.1532	−10.1532	0.9302