A Modified Horse Herd Optimization Algorithm and Its Application in the Program Source Code Clustering

Table 4

The average MQ values obtained by various methods and the standard deviation (STDV) among them.

	PSO		PSO-GA		SCSO		COA		HOA
	MQ	STDV	MQ	STDV	MQ	STDV	MQ	STDV	MQ	STDV
mtunis	2.3140	0.0000	2.3140	0.0000	2.3140	0.1082	2.3140	0.0000	2.3140	0.0000
spdb	4.7744	0.0330	4.6180	0.3870	5.0000	0.0000	4.7844	0.0314	4.8142	0.0168
ispell	2.1690	0.0111	2.1660	0.0603	2.1520	0.0400	2.1800	0.0100	2.2790	0.0088
rcs	2.1170	0.0231	2.0900	0.0910	2.1260	0.0215	2.1380	0.0129	2.1434	0.0204
bison	2.3640	0.0500	2.3300	0.0546	2.39.5	0.0871	2.3213	0.0483	2.6169	0.0644
cia	2.4026	0.0682	2.4639	0.0294	2.4106	0.0669	2.4108	0.0661	2.5220	0.0454
dot	2.4009	0.0370	2.4461	0.1527	2.3949	0.0672	2.4158	0.0813	2.4994	0.0300
php	3.4232	0.1507	3.5141	0.1391	3.4743	0.1513	3.4013	0.1099	3.8761	0.1790
grappa	4.2498	0.2580	4.4001	0.2023	4.8431	0.1874	4.2284	0.3109	4.8721	0.2393
incle	3.7151	0.1367	4.0812	0.2023	3.9690	0.1863	3.8288	0.1305	4.2615	0.1142
AVG	2.9930	0.0767	3.0423	0.1153	3.1074	0.0915	3.0022	0.0801	3.2198	0.0718