Named Entity Recognition of Traditional Chinese Medicine Patents Based on BiLSTM-CRF

Table 2

BIO labeling set for CRF.

Label of entity	Beginning label	Intermediate or end label
Herb name	B-M	l-M
Disease name	B-D	l-D
Symptom	B-S	l-S
Therapeutic effect	B-E	l-E
Nonentity	O	O