<BUG>knowledgeBase.load();</BUG><CONTEXT>testDataset.delete();return r;}public ClassificationMetrics validate(Dataframe testDataset) {logger.info("validate()");<extra_id_0>preprocessTestDataset(testDataset);modeler.predict(testDataset);ClassificationMetrics vm = new ClassificationMetrics(testDataset);</CONTEXT>
knowledgeBase.init();