Package opennlp.tools.parser

Klasse ParserCrossValidator

java.lang.Object

opennlp.tools.parser.ParserCrossValidator

public class ParserCrossValidator
extends Object

Cross validator for a Parser.

Konstruktorübersicht

Konstruktoren

Konstruktor	Beschreibung
ParserCrossValidator(String languageCode, TrainingParameters params, HeadRules rules, ParserType parserType, ParserEvaluationMonitor... monitors)	Initializes a ParserCrossValidator instance via given parameters.

Methodenübersicht

Modifizierer und Typ	Methode	Beschreibung
void	evaluate(ObjectStream<Parse> samples, int nFolds)	Starts the evaluation.
FMeasure	getFMeasure()

Von Klasse geerbte Methoden java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Konstruktordetails

ParserCrossValidator

public ParserCrossValidator(String languageCode,
 TrainingParameters params,
 HeadRules rules,
 ParserType parserType,
 ParserEvaluationMonitor... monitors)

Initializes a ParserCrossValidator instance via given parameters.

Parameter:

languageCode - An ISO conform language code.

params - The TrainingParameters for the context of cross validation.

rules - The HeadRules for the context of cross validation.

parserType - The ParserType for the context of cross validation.

monitors - the evaluation listeners.

Methodendetails

evaluate

public void evaluate(ObjectStream<Parse> samples,
 int nFolds)
              throws IOException

Starts the evaluation.

Parameter:

samples - The ObjectStream of samples to train and test with.

nFolds - Number of folds. It must be greater than zero.

Löst aus:

IOException - Thrown if IO errors occurred.

IllegalStateException - Thrown if the currently active ParserType is not supported.

getFMeasure

public FMeasure getFMeasure()