Use both SMOTE (Synthetic Minority Over-sampling Technique) and ROSE (Random Over-Sampling Examples) algorithms to balance data. SMOTE is implemented within KNIME. ROSE can be accessed via R. It is advisable to balace only your training data and leave the test/validation data as they are or you run the risk of greatly inflated values on your precision statistics.
Used extensions & nodes
Created with KNIME Analytics Platform version 4.1.0
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