Table 6.

Document-level analysis for drug−reason and drug−adverse drug event relations.

Model	Drug−reason						Drug−ADEa
	Instance level			Document level			Instance level			Document level
	Precision	Recall	F1 score	Precision	Recall	F1 score	Precision	Recall	F1 score	Precision	Recall	F1 score
Joint	0.682	0.526	0.594	0.691	0.542	0.607	0.590	0.322	0.417	0.631	0.322	0.426
Contextual-joint	0.675	0.546	0.604	0.685	0.560	0.616	0.592	0.307	0.404	0.630	0.308	0.414
Position-joint	0.680	0.593	0.633	0.692	0.611	0.649	0.590	0.376	0.460	0.647	0.384	0.482
Knowledge-joint	0.673	0.628	0.650	0.687	0.647	0.666	0.544	0.446	0.490	0.579	0.444	0.503

^aADE: adverse drug event.