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. Author manuscript; available in PMC: 2020 Aug 15.
Published in final edited form as: Methods. 2019 Feb 27;166:112–119. doi: 10.1016/j.ymeth.2019.02.021

Fig. 1. An illustrative example of a semi-supervised learning method.

Fig. 1.

The white, black and gray circles represent positive, negative and unlabeled relation instances, respectively. The dashed line represents the decision boundary decided by the classifier.