Table 1.

Benchmark Yamanishi_08 datasets and FDA_DrugBank dataset statistics

Statistics	Benchmark datasets				FDA_DrugBank
	NR	GPCR	IC	Enzyme
Number of drugs	54	223	210	445	1,482
Number of targets	26	95	204	664	1,408
Known DTIs	90	635	1476	2926	9881
Unknown DTIs	1314	20,550	41,364	292,554	2,076,775
Sparsity ratio	0.068	0.031	0.036	0.010	0.005