Table 16.

Performance evaluation before and after grouping in terms of accuracy measure.

Classifier	All	Caucasian	Hispanic	Females	Males	Age ≤ 50	Age > 50
DT	0.5876	0.7285	0.6260	0.7119	0.5256	0.7064	0.6061
LDA	0.6861	0.6908	0.6423	0.6695	0.6538	0.6514	0.6667
LR	0.6861	0.6887	0.6260	0.6102	0.6474	0.6697	0.6606
NB	0.6642	0.6887	0.6504	0.6356	0.6234	0.6239	0.6788
SVM	0.6898	0.7219	0.6829	0.7203	0.6346	0.7064	0.6727
kNN	0.6934	0.7483	0.6585	0.7458	0.6282	0.6514	0.6909
Ensemble	0.7044	0.7219	0.6585	0.7458	0.6603	0.7156	0.6909
SVM*	0.7226	0.7351	0.6748	0.7203	0.6667	0.7523	0.7091
kNN*	0.7409	0.7483	0.7724	0.7373	0.6987	0.7431	0.7333
mean Rank	3.44	1.33	5.00	3.44	6.44	3.78	4.56