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

Table 7

Comparison table of experimental results in judgement documents.

	Number of iterations	AL-CRF			CRF
			R	F		R	F
1	9	0.9314	0.9603	0.9456	0.8468	0.8824	0.8642
2	10	0.9328	0.9552	0.9439	0.8854	0.8992	0.8922
3	9	0.9273	0.9516	0.9393	0.8993	0.9132	0.9062
4	8	0.9316	0.9501	0.9408	0.8333	0.8714	0.8519
5	9	0.9462	0.9627	0.9543	0.8836	0.8979	0.8907
6	9	0.932	0.9513	0.9416	0.9024	0.9205	0.9114
7	10	0.9297	0.9498	0.9396	0.9057	0.9299	0.9176
8	8	0.9406	0.9544	0.9475	0.8708	0.9025	0.8864
9	9	0.9201	0.9531	0.9363	0.8982	0.9363	0.9169
10	9	0.9224	0.9502	0.9361	0.8844	0.9215	0.9026
Mean		0.9314	0.9539	0.9425	0.881	0.9075	0.894