Table 1.

Description of ten UCI data sets used in the experiments.

Data sets	Classes	Instances	Features
Breast Wisconsin original	2	241/458	9
Breast Wisconsin prognostic	2	47/151	33
Colon	2	40/22	1908
E. coli	2	52/284	8
Hepatitis	2	123/32	19
Leukemia	2	47/25	3571
Liver disorders	2	145/200	6
METAS	2	46/99	4919
SPECT heart	2	95/254	44
Thyroid	3	93/191/3488	21