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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 4.

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

Imbalance in training set Min. Frequency: 1000 Min. Frequency: 500 Min. Frequency: 100



Prec. Rec. F-score Prec. Rec. F-score Prec. Rec. F-score
|N| = 2 · |P| 0.744 0.724 0.732 0.868 0.775 0.819 0.865 0.846 0.855
|N| = 4 · |P| 0.851 0.698 0.766 0.922 0.760 0.833 0.924 0.837 0.878
|N| = 10 · |P| 0.950 0.646 0.769 0.967 0.745 0.842 0.967 0.816 0.885