TABLE 9.

Entity recognition performance indicators for each model (%).

Evaluation indicators		BiLSTM-CRF	BERT-BiLSTM-CRF	ALBERT-BiLSTM-CRF
Precision	DRN	87.91	83.42	87.78
	COM	89.29	88.96	90.28
	ADR	85.50	87.67	90.09
Recall	DRN	78.90	80.39	80.56
	COM	93.45	93.38	94.42
	ADR	89.86	92.15	92.73
F 1 score	DRN	83.16	81.88	84.01
	COM	91.32	91.12	92.30
	ADR	87.63	89.86	91.39

The bold font is to emphasize the increase in the F ₁ score of the ALBERT-BILSTM-CRF model used in this article compared to other models.