Table 1.

Numbers of negative samples under different thresholds of the probability.

Tag of threshold	Threshold	Number of negative samples	Times of positive samples
ε 1	0	128,220	2.25
ε 2	5 × 10−7	131,301	2.30
ε 3	5 × 10−6	152,596	2.67
ε 4	1 × 10−5	173,822	3.05
ε 5	2 × 10−5	216,256	3.79
ε 6	3 × 10−5	259,566	4.55
ε 7	4 × 10−5	294,260	5.16
ε 8	5 × 10−5	317,971	5.57
ε 9	6 × 10−5	333,797	5.85