Table 2.

Drug event detection for each status class using the contextual+Semantics+Discourse feature set.

	Precision	Recall	F-Measure
stop	0.91	0.75	0.82
start	0.93	0.98	0.95
hold	0.95	0.81	0.87
other	0.93	0.90	0.91
dosage change	0.83	0.64	0.72
complication	0.94	0.84	0.89
transition	1.0	0.18	0.31