Examples with RegressionGBTModelPMMLTranslator org.knime.base.node.mine.treeensemble2.model.pmml.RegressionGBTModelPMMLTranslator used on opensource projects

Example 1 with RegressionGBTModelPMMLTranslator

use of org.knime.base.node.mine.treeensemble2.model.pmml.RegressionGBTModelPMMLTranslator in project knime-core by knime.

the class GBTPMMLExporterNodeModel method execute.

/**
 * {@inheritDoc}
 */
@Override
protected PortObject[] execute(final PortObject[] inObjects, final ExecutionContext exec) throws Exception {
    GradientBoostingModelPortObject gbtPO = (GradientBoostingModelPortObject) inObjects[0];
    AbstractGBTModelPMMLTranslator<?> translator;
    AbstractGradientBoostingModel gbtModel = gbtPO.getEnsembleModel();
    if (gbtModel instanceof GradientBoostedTreesModel) {
        translator = new RegressionGBTModelPMMLTranslator((GradientBoostedTreesModel) gbtModel, gbtPO.getSpec().getLearnTableSpec());
    } else if (gbtModel instanceof MultiClassGradientBoostedTreesModel) {
        translator = new ClassificationGBTModelPMMLTranslator((MultiClassGradientBoostedTreesModel) gbtModel, gbtPO.getSpec().getLearnTableSpec());
    } else {
        throw new IllegalArgumentException("Unknown gradient boosted trees model type '" + gbtModel.getClass().getSimpleName() + "'.");
    }
    PMMLPortObjectSpec pmmlSpec = createPMMLSpec(gbtPO.getSpec(), gbtModel);
    PMMLPortObject pmmlPO = new PMMLPortObject(pmmlSpec);
    pmmlPO.addModelTranslater(translator);
    return new PortObject[] { pmmlPO };
}

Example 2 with RegressionGBTModelPMMLTranslator

use of org.knime.base.node.mine.treeensemble2.model.pmml.RegressionGBTModelPMMLTranslator in project knime-core by knime.

the class GradientBoostingPMMLPredictorNodeModel method importModel.

@SuppressWarnings("unchecked")
private GradientBoostingModelPortObject importModel(final PMMLPortObject pmmlPO) {
    AbstractGBTModelPMMLTranslator<M> pmmlTranslator;
    DataType targetType = extractTargetType(pmmlPO.getSpec());
    if (targetType.isCompatible(DoubleValue.class)) {
        pmmlTranslator = (AbstractGBTModelPMMLTranslator<M>) new RegressionGBTModelPMMLTranslator();
    } else if (targetType.isCompatible(StringValue.class)) {
        pmmlTranslator = (AbstractGBTModelPMMLTranslator<M>) new ClassificationGBTModelPMMLTranslator();
    } else {
        throw new IllegalArgumentException("Currently only regression models are supported.");
    }
    pmmlPO.initializeModelTranslator(pmmlTranslator);
    if (pmmlTranslator.hasWarning()) {
        setWarningMessage(pmmlTranslator.getWarning());
    }
    return new GradientBoostingModelPortObject(new TreeEnsembleModelPortObjectSpec(pmmlTranslator.getLearnSpec()), pmmlTranslator.getGBTModel());
}