Table 2.

System performance on the top ten most common PTs in the WEB-RADR reference data

PT name	No. of AE relations	Precision	Recall	F1-score	No. of annotations in the training set
Drug ineffective	133	0.61	0.36	0.45	5652
Feeling abnormal	74	0.42	0.04	0.07	231
Insomnia	59	0.39	0.37	0.38	2013
Adverse event	57	0	0.04	0	0
Fatigue	40	0.36	0.55	0.44	2715
Adverse drug reaction	37	0.50	0.05	0.10	0
Somnolence	29	0.62	0.21	0.31	489
Social problem	27	0	0	0	0
Hallucination	27	0.92	0.37	0.53	312
Drug use disorder	27	0.18	0.26	0.21	0
All PTs	1396	0.36	0.21	0.27

AE adverse event, PT preferred term