org.joone.engine

Class EKFRNNLearnerPlugin

java.lang.Object

org.joone.util.MonitorPlugin

org.joone.engine.EKFRNNLearnerPlugin

All Implemented Interfaces:

java.io.Serializable, java.util.EventListener, NeuralNetListener

public class EKFRNNLearnerPlugin
extends MonitorPlugin

A plugin listener that implements the EKF learner, based on "Some observations on the use of the extended Kalman filter as a recurrent network learning algorithm" by Williams (1992) in order to train a network. This should be attached to the desired output layer and will update weights whenever a new desired pattern is recovered.

Author:

mg

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected int	cycleCount Network cycle counter
protected ExtendedKalmanFilterRNN	ekf The filter that will do the training
protected Synapse	errorPatternListener The synapse we will use to catch the errors
protected double	kalmanBoost The kalman boost factor
protected double[]	lastError The most recently seen error
protected int	processorCount Number of processors to use, if 2 or more, will use SMP
protected int	verbose Zero for no verbosity, otherwise the number of patterns after which we croak

Constructor Summary

Constructors

Constructor and Description
EKFRNNLearnerPlugin(double kalmanBoost, int verbose) The constructor
EKFRNNLearnerPlugin(double kalmanBoost, int verbose, int processorCount) The constructor

Method Summary

Methods

Modifier and Type	Method and Description
protected void	attachErrorPatternListener() Attach a synapse to the output layer to calculate the error pattern and update the EKF on line.
static void	main(java.lang.String[] args) Execute one of the testers
protected void	manageCycle(Monitor mon)
protected void	manageError(Monitor mon)
protected void	manageStart(Monitor mon)
protected void	manageStop(Monitor mon)
protected void	manageStopError(Monitor mon, java.lang.String msgErr)
static void	testEKF(java.lang.String[] args) Test the EKF learner

Methods inherited from class org.joone.util.MonitorPlugin

cicleTerminated, errorChanged, getName, getNeuralNet, getRate, netStarted, netStopped, netStoppedError, setName, setNeuralNet, setRate, toBeManaged

Methods inherited from class java.lang.Object

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

Field Detail

ekf

protected transient ExtendedKalmanFilterRNN ekf

The filter that will do the training

cycleCount

protected transient int cycleCount

Network cycle counter

lastError

protected transient double[] lastError

The most recently seen error

errorPatternListener

protected transient Synapse errorPatternListener

The synapse we will use to catch the errors

kalmanBoost

protected double kalmanBoost

The kalman boost factor

verbose

protected int verbose

Zero for no verbosity, otherwise the number of patterns after which we croak

processorCount

protected int processorCount

Number of processors to use, if 2 or more, will use SMP

Constructor Detail

EKFRNNLearnerPlugin

public EKFRNNLearnerPlugin(double kalmanBoost,
                   int verbose,
                   int processorCount)

The constructor

EKFRNNLearnerPlugin

public EKFRNNLearnerPlugin(double kalmanBoost,
                   int verbose)

The constructor

Method Detail

attachErrorPatternListener

protected void attachErrorPatternListener()

Attach a synapse to the output layer to calculate the error pattern and update the EKF on line.

manageStop

protected void manageStop(Monitor mon)

Specified by:

manageStop in class MonitorPlugin

manageCycle

protected void manageCycle(Monitor mon)

Specified by:

manageCycle in class MonitorPlugin

manageStart

protected void manageStart(Monitor mon)

Specified by:

manageStart in class MonitorPlugin

manageError

protected void manageError(Monitor mon)

Specified by:

manageError in class MonitorPlugin

manageStopError

protected void manageStopError(Monitor mon,
                   java.lang.String msgErr)

Specified by:

manageStopError in class MonitorPlugin

testEKF

public static void testEKF(java.lang.String[] args)

Test the EKF learner

main

public static void main(java.lang.String[] args)

Execute one of the testers