Table 5.

Comparison of RF models with two different negative sample selection strategies.

Negative sample selection strategy	Number of selected negative samples	SN	SP	ACC	MCC	Precision	F1‐measure
Proposed strategy	57,058	0.904	0.994	0.949	0.901	0.993	0.946
	114,116	0.919	0.999	0.972	0.938	0.997	0.956
	128,220	0.923	0.999	0.975	0.943	0.997	0.959
	57,058	0.887	0.907	0.897	0.794	0.905	0.896
FIRE	114,116	0.844	0.954	0.917	0.811	0.901	0.872
	128,220	0.832	0.961	0.921	0.812	0.904	0.867
	355,634	0.745	0.992	0.957	0.812	0.934	0.829