Package opennlp.tools.doccat
Class DoccatCrossValidator
java.lang.Object
opennlp.tools.doccat.DoccatCrossValidator
Cross validator for
DocumentCategorizer.-
Constructor Summary
ConstructorsConstructorDescriptionDoccatCrossValidator(String languageCode, TrainingParameters mlParams, DoccatFactory factory, DoccatEvaluationMonitor... listeners) Instantiates aDoccatCrossValidatorwith the givengenerators. -
Method Summary
Modifier and TypeMethodDescriptionvoidevaluate(ObjectStream<DocumentSample> samples, int nFolds) Starts the evaluation.doublelong
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Constructor Details
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DoccatCrossValidator
public DoccatCrossValidator(String languageCode, TrainingParameters mlParams, DoccatFactory factory, DoccatEvaluationMonitor... listeners) Instantiates aDoccatCrossValidatorwith the givengenerators.- Parameters:
languageCode- An ISO conform language code.mlParams- TheTrainingParametersfor the context of cross validation.factory- TheDoccatFactoryfor creating related objects.listeners- theevaluation listeners.
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Method Details
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evaluate
Starts the evaluation.- Parameters:
samples- TheObjectStreamofsamplesto train and test with.nFolds- Number of folds. It must be greater than zero.- Throws:
IOException- Thrown if IO errors occurred.
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getDocumentAccuracy
public double getDocumentAccuracy()- Returns:
- Retrieves the accuracy for all iterations.
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getDocumentCount
public long getDocumentCount()- Returns:
- Retrieves the number of words which where validated over all iterations. The result is the amount of folds multiplied by the total number of words.
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