Local versus Global Models for Just-In-Time Software Defect Prediction

Table 6

Local vs. global models in the cross-project-validation scenario.

Indicator	Global	Local									W/D/L
		k = 2	k = 3	k = 4	k = 5	k = 6	k = 7	k = 8	k = 9	k = 10
AUC	0.706	0.683	0.681	0.674	0.673	0.673	0.668	0.659	0.680	0.674	0/0/9
F1	0.678	0.629	0.703	0.696	0.677	0.613	0.620	0.554	0.629	0.637	0/4/5
ACC	0.314	0.493	0.396	0.348	0.408	0.393	0.326	0.34	0.342	0.345	2/7/0
	0.656	0.764	0.691	0.672	0.719	0.687	0.619	0.632	0.667	0.624	1/8/0