Table 2.

A comparison of PRC and XPRC at different precision levels determined by the PRC algorithm on the CDS dataset. The format of this table is the same as that of Table 1.

Precision levels		0.0	0.2	0.4	0.6	0.8	1.0
Cumulative article counts		87	268	539	1000	1670	3034
PRC	macro-average precision	0	0.135	0.268	0.421	0.573	0.765
	standard error	0	0.006	0.006	0.006	0.006	0.005
XPRC	macro-average precision	0.172	0.248	0.315	0.410	0.509	0.645
	standard error	0.024	0.015	0.011	0.009	0.007	0.005
p-value		2e-10	2e-11	3e-4	0.294	4e-12	6e-57