Examples with JochreSplitEventStream com.joliciel.jochre.boundaries.JochreSplitEventStream used on opensource projects

Example 1 with JochreSplitEventStream

use of com.joliciel.jochre.boundaries.JochreSplitEventStream in project jochre by urieli.

the class Jochre method doCommandTrainSplits.

/**
 * Train the letter splitting model.
 *
 * @param featureDescriptors
 *          the feature descriptors for training this model
 * @param criteria
 *          the criteria used to select the training corpus
 */
public void doCommandTrainSplits(List<String> featureDescriptors, CorpusSelectionCriteria criteria) {
    if (jochreSession.getSplitModelPath() == null)
        throw new RuntimeException("Missing argument: splitModel");
    if (featureDescriptors == null)
        throw new JochreException("features is required");
    File splitModelFile = new File(jochreSession.getSplitModelPath());
    splitModelFile.getParentFile().mkdirs();
    SplitFeatureParser splitFeatureParser = new SplitFeatureParser();
    Set<SplitFeature<?>> splitFeatures = splitFeatureParser.getSplitFeatureSet(featureDescriptors);
    ClassificationEventStream corpusEventStream = new JochreSplitEventStream(criteria, splitFeatures, jochreSession);
    ModelTrainerFactory modelTrainerFactory = new ModelTrainerFactory();
    ClassificationModelTrainer trainer = modelTrainerFactory.constructTrainer(jochreSession.getConfig());
    ClassificationModel splitModel = trainer.trainModel(corpusEventStream, featureDescriptors);
    splitModel.persist(splitModelFile);
}