Table 7. The f-score and calculated p-values by sign test for the test parts of the two datasets of the three improved and original methods.

	Method	-	+NCT (%)	M+	M-	p-value
DrugBank	GC	61.7	68.3	425	62	9.0e-53
	ST	47.1	53	395	65	3.6e-71
	LC	63.4	68.4	480	73	3.3e-64
MEDLINE	GC	33.9	38.8	143	35	2.0e-23
	ST	18.4	21.5	129	38	2.3e-32
	LC	42.3	28.2	153	34	3.4e-43