Table 4.

Classification results using kNN classifier

Database	Accuracy	Sensitivity	Specificity	AUC
Dataset I	0.965	0.974	0.978	0.989
Dataset II	0.892	0.879	0.958	0.969
Dataset III	0.877	0.873	0.939	0.956
Dataset IV	0.912	0.871	0.933	0.953