A Low-Cost Named Entity Recognition Research Based on Active Learning

Table 6

The recognition effect of 5 categories in medical field.

Model	Category		R	F
AL-CRF	Body (B)	0.9523	0.9197	0.9357
	Symptoms and signs (SS)	0.9791	0.9556	0.9672
	Examination and inspection (EI)	0.8042	0.8396	0.8215
	Disease and diagnosis (DD)	0.9381	0.9187	0.9283
	Treatment (T)	0.7938	0.7607	0.7769
CRF	Body (B)	0.9312	0.8899	0.9101
	Symptoms and signs (SS)	0.9746	0.9306	0.9521
	Examination and inspection (EI)	0.7659	0.8065	0.7857
	Disease and diagnosis (DD)	0.9133	0.8919	0.9025
	Treatment (T)	0.7624	0.7123	0.7365