A Complex Chained P System Based on Evolutionary Mechanism for Image Segmentation

Table 7

Performance of the comparative clustering approaches on the eight real-life datasets.

Datasets	Statistics	Clustering approaches
		PSO	DE	EPSO	APSO	CCP
Iris	Worst	0.6667	0.8933	0.8933	0.9000	0.8667
	Best	0.9267	0.9000	0.9000	0.9000	0.9600
	Mean	0.8077	0.8983	0.8997	0.9000	0.9013
	SD	0.0904	0.0027	0.0015	1.03E − 17	0.0248
Newthyroid	Worst	0.6977	0.7488	0.7721	0.7721	0.7767
	Best	0.8372	0.8093	0.8047	0.8047	0.8047
	Mean	0.7391	0.7777	0.8000	0.8000	0.8014
	SD	0.0337	0.0187	0.0114	0.0114	0.0080
Seeds	Worst	0.6476	0.8477	0.8952	0.8952	0.8952
	Best	0.8953	0.9143	0.8952	0.8952	0.8953
	Mean	0.8367	0.8814	0.8952	0.8952	0.8952
	SD	0.0850	0.0207	1.14E − 16	1.14E − 16	1.14E − 16
Diabetes	Worst	0.6510	0.6510	0.6510	0.6510	0.6510
	Best	0.6510	0.6510	0.6510	0.6510	0.6654
	Mean	0.6510	0.6510	0.6510	0.6510	0.6518
	SD	1.14E − 16	1.14E – 16	1.14E − 16	1.14E − 16	0.0032
Yeast	Worst	0.3120	0.3309	0.4508	0.3942	0.4683
	Best	0.3376	0.4016	0.5370	0.4569	0.5418
	Mean	0.3171	0.3640	0.4965	0.4377	0.5200
	SD	0.0057	0.0248	0.0275	0.0134	0.0152
Glass	Worst	0.3551	0.4720	0.5607	0.5093	0.5841
	Best	0.4813	0.5234	0.5981	0.5841	0.5841
	Mean	0.4140	0.5021	0.5834	0.5486	0.5841
	SD	0.0444	0.0144	0.0122	0.0267	1.14E − 16
CMC	Worst	0.4332	0.4358	0.4515	0.4562	0.4515
	Best	0.4630	0.4582	0.4569	0.4562	0.4569
	Mean	0.4510	0.4492	0.4556	0.4562	0.4562
	SD	0.0087	0.0074	0.0016	5.66E − 17	0.0012
Lung Cancer	Worst	0.4062	0.4063	0.5313	0.4063	0.5625
	Best	0.5625	0.5000	0.5625	0.6250	0.5625
	Mean	0.4641	0.4281	0.5578	0.5188	0.5625
	SD	0.0433	0.0250	0.0114	0.0644	1.28E − 16