org.joone.samples.util

Class ParityInputSynapse

java.lang.Object

org.joone.engine.Synapse

org.joone.io.StreamInputSynapse

org.joone.samples.util.ParityInputSynapse

All Implemented Interfaces:

java.io.Serializable, InputPatternListener, Learnable, LearnableSynapse, NeuralElement, OutputPatternListener, Inspectable, InputSynapse, PlugInListener

public class ParityInputSynapse
extends StreamInputSynapse

This synapse creates input and desired output data for the parity problem. The parity problem is the problem where numbers (in binary form) having an even number of ones should output a zero and numbers having an odd number of ones should output a one.

The partity problem is a problem that is often used to test new learning algorithms, etc., because the problem is quite difficult. Whenever one bit changes the output should be the opposite.

This class is also mainly created to test new techniques.

The default size of the parity problem is two, that is, it creates the training data for the XOR problem.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ParityInputSynapse() Creates a new instance of ParityInputSynapse

Method Summary

Modifier and Type	Method and Description
double	getLowerBit() Gets the value used for the lower bit.
int	getNumOfPatterns() Gets the number of patterns that exist for the parity problem, that is 2^parity-size.
int	getParitySize() Gets the parity size, that is, the number of bits of the input pattern.
double	getUpperBit() Gets the value used for the upper bit.
void	setLowerBit(double aValue) Sets the value for the lower bit.
void	setParitySize(int aSize) Sets the number of bits the parity problem should consist of, that is, the number of bits the input should consist of.
void	setUpperBit(double aValue) Sets the value for the upper bit.

Methods inherited from class org.joone.io.StreamInputSynapse

addPlugIn, addPlugInListener, check, dataChanged, fwdGet, fwdGet, getAdvancedColumnSelector, getAllPlugInListeners, getCurrentRow, getDecimalPoint, getFirstCol, getFirstRow, getInputPatterns, getInputVector, getLastCol, getLastRow, getMaxBufSize, getPlugIn, getStream, gotoFirstLine, gotoLine, InspectableTitle, Inspections, isBuffered, isEOF, isStepCounter, numColumns, readAll, removeAllPlugIns, removePlugInListener, reset, resetInput, revPut, setAdvancedColumnSelector, setBuffered, setDecimalPoint, setFirstCol, setFirstRow, setInputPatterns, setLastCol, setLastRow, setMaxBufSize, setPlugin, setPlugIn, setStepCounter

Methods inherited from class org.joone.engine.Synapse

addNoise, canCountSteps, fwdPut, getIgnoreBefore, getInputDimension, getLearner, getLearningRate, getMomentum, getMonitor, getName, getOutputDimension, getWeights, init, initLearner, isEnabled, isInputFull, isLoopBack, isOutputFull, randomize, revGet, setEnabled, setIgnoreBefore, setInputDimension, setInputFull, setLearningRate, setLoopBack, setMomentum, setMonitor, setName, setOutputDimension, setOutputFull, setWeights

Methods inherited from class java.lang.Object

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

Constructor Detail

ParityInputSynapse

public ParityInputSynapse()

Creates a new instance of ParityInputSynapse

Method Detail

setParitySize

public void setParitySize(int aSize)

Sets the number of bits the parity problem should consist of, that is, the number of bits the input should consist of. For example, a size 2, is the XOR problem.

Parameters:

aSize - the size / number of bits for the input.

getParitySize

public int getParitySize()

Gets the parity size, that is, the number of bits of the input pattern.

Returns:

the parity size.

getNumOfPatterns

public int getNumOfPatterns()

Gets the number of patterns that exist for the parity problem, that is 2^parity-size.

Returns:

the number of patterns that exist for the parity problem based on the parity size.

setUpperBit

public void setUpperBit(double aValue)

Sets the value for the upper bit.

Parameters:

aValue - the value to use for the upper bit.

getUpperBit

public double getUpperBit()

Gets the value used for the upper bit.

setLowerBit

public void setLowerBit(double aValue)

Sets the value for the lower bit.

Parameters:

aValue - the value to use for the lower bit.

getLowerBit

public double getLowerBit()

Gets the value used for the lower bit.