Table 2.

Performance comparison of various classifiers with and without feature selection.

Feature selection	Performance metrics	Machine learning algorithms
		SVM	NB	MLP	RF	KNN
Yes	Accuracy (%)	81.11	77.78	78	80	77.78
	Kappa statistics	0.72	0.62	0.65	0.66	0.61
	Root mean square error	0.17	0.26	0.27	0.25	0.26
No	Accuracy (%)	64.40	75.50	73.00	72.22	62.22
	Kappa statistics	0.52	0.58	0.47	0.47	0.21
	Root mean square error	0.22	0.19	0.18	0.18	0.20