org.simbrain.network.trainers

Class BPTTTrainer

java.lang.Object

org.simbrain.network.trainers.Trainer

org.simbrain.network.trainers.IterableTrainer

org.simbrain.network.trainers.BPTTTrainer

public class BPTTTrainer
extends IterableTrainer

Trainer for backprop through time Networks. As a test use the "Walker" tables.

Author:

jyoshimi

Nested Class Summary

Nested classes/interfaces inherited from class org.simbrain.network.trainers.IterableTrainer

IterableTrainer.StoppingCondition

Nested classes/interfaces inherited from class org.simbrain.network.trainers.Trainer

Trainer.DataNotInitializedException

Field Summary

Fields inherited from class org.simbrain.network.trainers.Trainer

network

Constructor Summary

Constructors

Constructor and Description
BPTTTrainer(BPTTNetwork bptt) Construct the SRN trainer.

Method Summary

Modifier and Type	Method and Description
void	apply() Apply the algorithm.
double	getError() Get the current MSE error.
double	getLearningRate()
double	getMomentum()
void	randomize() Randomize the network being trained.
void	setLearningRate(double learningRate)
void	setMomentum(double momentum)

Methods inherited from class org.simbrain.network.trainers.IterableTrainer

addErrorListener, fireErrorUpdated, getErrorListeners, getErrorThreshold, getIteration, getIterationsBeforeStopping, getMinimumNumRows, getStoppingCond, getStoppingCondition, getValidationError, incrementIteration, isUpdateCompleted, iterate, removeErrorListener, setErrorThreshold, setIteration, setIterationsBeforeStopping, setStoppingCond, setStoppingCondition, setUpdateCompleted

Methods inherited from class org.simbrain.network.trainers.Trainer

addListener, fireProgressUpdate, fireTrainingBegin, fireTrainingEnd, getListeners, getTrainable, getTrainableNetwork, removeListener, revalidateSynapseGroups

Methods inherited from class java.lang.Object

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

Constructor Detail

BPTTTrainer

public BPTTTrainer(BPTTNetwork bptt)

Construct the SRN trainer.

Parameters:

bptt - the simple recurrent network

Method Detail

apply

public void apply()

Description copied from class: Trainer

Apply the algorithm.

Specified by:

apply in class Trainer

getError

public double getError()

Description copied from class: IterableTrainer

Get the current MSE error.

Specified by:

getError in class IterableTrainer

Returns:

the current MSE error

randomize

public void randomize()

Description copied from class: IterableTrainer

Randomize the network being trained. Convenience method so guis wrapping trainers have access to network randomization when the user wishes to "restart" training.

Specified by:

randomize in class IterableTrainer

getLearningRate

public double getLearningRate()

Returns:

the learningRate

setLearningRate

public void setLearningRate(double learningRate)

Parameters:

learningRate - the learningRate to set

getMomentum

public double getMomentum()

Returns:

the momentum

setMomentum

public void setMomentum(double momentum)

Parameters:

momentum - the momentum to set