Table 4.

Results of our system on CN and DN (%).

Method	Chemical			Disease
	P	R	F1	P	R	F1
dictionary look-up	NA	NA	NA	42.71	67.46	52.30
tmChem	95.02	81.11	87.52	NA	NA	NA
DNorm	NA	NA	NA	81.15	80.13	80.64
DNorm*	NA	NA	NA	81.25	81.33	81.29
MeSH	87.15	90.73	88.90	77.89	80.43	79.14
Wikipedia	87.95	91.43	89.68	78.62	82.14	80.34
Re-ranking	87.83	90.03	88.92	78.36	78.11	78.24
Mapping directly	93.48	90.94	92.19	88.64	80.03	84.11