Table 2.

The average of the weighted F₁-scores across the five folds. On an average, there are 6030 training instances and 1507 test instances

	Including “O”			Excluding “O”
System	Precision	Recall	F1-score	Precision	Recall	F1-score
Dictionary baseline	0.721	0.624	0.638	0.558	0.766	0.629
SVM	0.843	0.843	0.841	0.781	0.738	0.756
CRF	0.831	0.816	0.817	0.704	0.76	0.719