Hybrid Gradient Descent Grey Wolf Optimizer for Optimal Feature Selection

Table 12

Average, maximum, and minimum metrics achieved for HGDGWO3, BGWOPSO, BGWO1, and BGWO2 on the SPECT Heart dataset.

	SPECT Heart
	Average				Maximum				Minimum
	BGWO1	BGWO2	BGWOPSO	HGDGWO	BGWO1	BGWO2	BGWOPSO	HGDGWO	BGWO1	BGWO2	BGWOPSO	HGDGWO
Accuracy	0.6918	0.7211	0.6979	0.7066	0.8889	0.8889	0.8889	0.8889	0.5185	0.5	0.4231	0.5
-measure	0.7524	0.7775	0.7605	0.7642	0.9143	0.9143	0.9143	0.9091	0.6061	0.6	0.5455	0.6061
Fitness values	0.2579	0.2292	0.2593	0.2483	0.2916	0.2515	0.3685	0.2801	0.2247	0.2086	0.1943	0.2244
Number of features	10.98	3.7	12.6	6.28	16	8	18	11	5	2	9	3
Precision	0.7181	0.7336	0.7154	0.7277	0.9333	0.8421	0.9333	0.8824	0.5714	0.5556	0.5	0.5556
Sensitivity	0.8006	0.831	0.8197	0.8119	1	1	1	0.9375	0.5625	0.6	0.6	0.625