code: @Override
      protected Cluster createNewCluster(Integer clusterId) {
          ModelParameters modelParameters = knowledgeBase.getModelParameters();
          TrainingParameters trainingParameters = knowledgeBase.getTrainingParameters();
          Cluster c = new Cluster(clusterId, modelParameters.getD(), trainingParameters.getAlphaWords());
          c.setFeatureIds(modelParameters.getFeatureIds());
          
          return c;
      }
docs: {@inheritDoc}