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

Table 4

The average recognition effect of initial model in EMRs.

Selection method		R	F
Random	0.8100	0.7658	0.7873
2 clusters	0.8115	0.7534	0.7813
5 clusters	0.8053	0.7707	0.7876
8 clusters	0.8174	0.7767	0.7965
14 clusters	0.8039	0.7682	0.7856