cc.mallet.fst

Class TransducerTrainer

java.lang.Object

cc.mallet.fst.TransducerTrainer

Direct Known Subclasses:

CRFTrainerByEntropyRegularization, CRFTrainerByGE, CRFTrainerByLabelLikelihood, CRFTrainerByLikelihoodAndGE, CRFTrainerByPR, CRFTrainerByThreadedLabelLikelihood, CRFTrainerByValueGradients, HMMTrainerByLikelihood, MEMMTrainer, NoopTransducerTrainer, ShallowTransducerTrainer, TransducerTrainer.ByIncrements

public abstract class TransducerTrainer
extends java.lang.Object

An abstract class to train and evaluate a transducer model.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	TransducerTrainer.ByIncrements
static class	TransducerTrainer.ByInstanceIncrements
static interface	TransducerTrainer.ByOptimization

Constructor Summary

Constructors

Constructor and Description
TransducerTrainer()

Method Summary

Modifier and Type	Method and Description
TransducerTrainer	addEvaluator(TransducerEvaluator te)
TransducerTrainer	addEvaluators(java.util.Collection<TransducerEvaluator> tes)
abstract int	getIteration()
abstract Transducer	getTransducer()
abstract boolean	isFinishedTraining()
TransducerTrainer	removeEvaluator(TransducerEvaluator te)
boolean	train(InstanceList trainingSet)
abstract boolean	train(InstanceList trainingSet, int numIterations) Train the transducer associated with this TransducerTrainer.

Methods inherited from class java.lang.Object

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

Constructor Detail

TransducerTrainer

public TransducerTrainer()

Method Detail

getTransducer

public abstract Transducer getTransducer()

getIteration

public abstract int getIteration()

isFinishedTraining

public abstract boolean isFinishedTraining()

train

public boolean train(InstanceList trainingSet)

train

public abstract boolean train(InstanceList trainingSet,
                              int numIterations)

Train the transducer associated with this TransducerTrainer. You should be able to call this method with different trainingSet objects. Whether this causes the TransducerTrainer to combine both trainingSets or to view the second as a new alternative is at the discretion of the particular TransducerTrainer subclass involved.

addEvaluator

public TransducerTrainer addEvaluator(TransducerEvaluator te)

addEvaluators

public TransducerTrainer addEvaluators(java.util.Collection<TransducerEvaluator> tes)

removeEvaluator

public TransducerTrainer removeEvaluator(TransducerEvaluator te)