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. Author manuscript; available in PMC: 2018 Aug 1.

Published in final edited form as: J Biomed Inform. 2018 May 12;82:189–199. doi: 10.1016/j.jbi.2018.05.003

Table 3.

Imbalanced training data: test set scores with length ≤ 3 compound patterns for treatment relations

Imbalance in training set	Min. Frequency: 1000			Min. Frequency: 500

	Prec.	Rec.	F-score	Prec.	Rec.	F-score
\|N\| = 2 · \|P\|	0.979	0.962	0.970	0.981	0.964	0.973
\|N\| = 4 · \|P\|	0.988	0.964	0.976	0.988	0.966	0.977
\|N\| = 10 · \|P\|	0.992	0.966	0.979	0.992	0.968	0.980