org.encog.ml.train.strategy.end

Class SimpleEarlyStoppingStrategy

java.lang.Object

org.encog.ml.train.strategy.end.SimpleEarlyStoppingStrategy

All Implemented Interfaces:

EndTrainingStrategy, Strategy

public class SimpleEarlyStoppingStrategy
extends Object
implements EndTrainingStrategy

A simple early stopping strategy that halts training when the validation set no longer improves.

Constructor Summary

Constructors

Constructor and Description
SimpleEarlyStoppingStrategy(MLDataSet theValidationSet)
SimpleEarlyStoppingStrategy(MLDataSet theValidationSet, int theCheckFrequency)

Method Summary

Methods

Modifier and Type	Method and Description
double	getTrainingError()
double	getValidationError()
void	init(MLTrain theTrain) Initialize this strategy.
void	postIteration() Called just after a training iteration.
void	preIteration() Called just before a training iteration.
boolean	shouldStop()

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleEarlyStoppingStrategy

public SimpleEarlyStoppingStrategy(MLDataSet theValidationSet)

SimpleEarlyStoppingStrategy

public SimpleEarlyStoppingStrategy(MLDataSet theValidationSet,
                           int theCheckFrequency)

Method Detail

init

public void init(MLTrain theTrain)

Initialize this strategy.

Specified by:

init in interface Strategy

Parameters:

theTrain - The training algorithm.

preIteration

public void preIteration()

Called just before a training iteration.

Specified by:

preIteration in interface Strategy

postIteration

public void postIteration()

Called just after a training iteration.

Specified by:

postIteration in interface Strategy

shouldStop

public boolean shouldStop()

Specified by:

shouldStop in interface EndTrainingStrategy

Returns:

Returns true if we should stop.

getTrainingError

public double getTrainingError()

Returns:

the trainingError

getValidationError

public double getValidationError()

Returns:

The validation error.