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

Table 5

Comparison table of experimental results in EMRs.

	Number of iterations	AL-CRF			CRF
			R	F		R	F
1	11	0.9603	0.9314	0.9456	0.9223	0.9012	0.9116
2	10	0.9552	0.9328	0.9439	0.9252	0.8992	0.912
3	9	0.9516	0.9273	0.9393	0.8993	0.8632	0.8809
4	10	0.9501	0.9316	0.9408	0.9233	0.9014	0.9122
5	11	0.9627	0.9462	0.9543	0.9236	0.8979	0.9106
6	10	0.9513	0.932	0.9416	0.9124	0.9005	0.9064
7	10	0.9498	0.9297	0.9396	0.9157	0.8999	0.9077
8	11	0.9544	0.9406	0.9475	0.9208	0.9025	0.9136
9	10	0.9531	0.9201	0.9363	0.9082	0.8963	0.9022
10	10	0.9602	0.9224	0.9409	0.9144	0.9015	0.9079
Mean		0.9549	0.9314	0.9430	0.9165	0.8964	0.9065