Table 2.

Recall, precision, and F-score values at n.

n	100,000	200,000	300,000	400,000	500,000	600,000	700,000	800,000	900,000	1,000,000
Precision (P)	0.671	0.682	0.545	0.473	0.482	0.399	0.357	0.213	0.246	0.195
Recall (R)	0.235	0.278	0.316	0.642	0.599	0.611	0.74	0.836	0.823	0.838
F-score	0.348	0.394	0.4	0.545	0.534	0.483	0.482	0.34	0.379	0.316