Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> joone >> [ engine overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

---

org.joone.engine
Class GaussianLayer  

java.lang.Object
  org.joone.engine.Layer
      org.joone.engine.SimpleLayer
          org.joone.engine.GaussianLayer

All Implemented Interfaces:

java.util.EventListener, org.joone.inspection.Inspectable, Learnable, LearnableLayer, NeuralLayer, NeuralNetListener, java.lang.Runnable, java.io.Serializable

---

public class GaussianLayer

extends SimpleLayer

This layer implements the Gaussian Neighborhood SOM strategy. It receives the euclidean distances between the input vector and weights and calculates the distance fall off between the winning node and all other nodes. These are passed back allowing the previous synapse to adjust it's weights.

The distance fall off is calculated according to a Gaussian distribution from the winning node. This layer uses implemtations of SpatialMap in order to calculate these distances. Currently this layer uses the GaussianSpatialMap which calculates the Gaussian distance for all nodes in the SOM map. Future maps will allow distance calculations based on a specific shape such as a circle , square or diamond. Currently the GuassianLayer supports 3D SOM maps.

---

Field Summary
private  double	initialGaussianSize
private  int	LayerDepth
private  int	LayerHeight
private  int	LayerWidth
private static org.joone.log.ILogger	log
private  double	NeighborhoodSize
private  int	orderingPhase
private static long	serialVersionUID
private  SpatialMap	space_map
private  double	timeConstant

 

Fields inherited from class org.joone.engine.SimpleLayer

 

Fields inherited from class org.joone.engine.Layer

bias, gradientInps, gradientOuts, inps, inputPatternListeners, learnable, learning, m_batch, monitor, myLearner, outputPatternListeners, outs, running, step, STOP_FLAG

 

Constructor Summary

GaussianLayer()           The default constructor for this GaussianLayer.

GaussianLayer(java.lang.String ElemName)           The constructor that takes a name of the layer.

 

Method Summary
void	backward(double[] pattern)           This method has a blank body as there are no biases to adjust.
java.util.TreeSet	check()           Check that there are no errors or problems with the properties of this GaussianLayer.
void	cicleTerminated(NeuralNetEvent e)           Updates the Gaussian Size if in learning mode.
void	forward(double[] pattern)           This method takes as input an array of euclidean distances between the input and weights calculated by the previous synapse.
double	getInitialGaussianSize()           Getter for property initialGaussianSize.
int	getLargestDimension()           Gets the largest layer dimension size.
int	getLayerDepth()           Getter for property LayerDepth.
int	getLayerHeight()           Getter for property LayerHeight.
int	getLayerWidth()           Getter for property LayerWidth.
int	getOrderingPhase()           Getter for property orderingPhase.
protected  SpatialMap	getSpace_map()           Getter for property space_map.
double	getTimeConstant()           Getter for property timeConstant.
java.util.Collection	Inspections()           It doesn't make sense to return biases for this layer
void	netStarted(NeuralNetEvent e)           Initialises the time constant used to decrease the size of the spatial map.
void	setInitialGaussianSize(double initialGaussianSize)           Setter for property initialGaussianSize.
void	setLayerDepth(int LayerDepth)           Setter for property LayerDepth.
void	setLayerHeight(int LayerHeight)           Setter for property LayerHeight.
void	setLayerWidth(int LayerWidth)           Setter for property LayerWidth.
void	setOrderingPhase(int orderingPhase)           Setter for property orderingPhase.
void	setTimeConstant(double timeConstant)           Setter for property timeConstant.

 

Methods inherited from class org.joone.engine.SimpleLayer

getLearningRate, getLrate, getMomentum, setDimensions, setLrate, setMomentum, setMonitor

 

Methods inherited from class org.joone.engine.Layer

addInputSynapse, addNoise, addOutputSynapse, adjustSizeToFwdPattern, adjustSizeToRevPattern, checkInputEnabled, checkInputs, checkOutputs, copyInto, errorChanged, finalize, fireFwdGet, fireFwdPut, fireRevGet, fireRevPut, getAllInputs, getAllOutputs, getBias, getDimension, getLastOutputs, getLayerName, getLearner, getMonitor, getRows, getThreadMonitor, hasStepCounter, init, initLearner, InspectableTitle, isInputLayer, isOutputLayer, isRunning, join, netStopped, netStoppedError, randomize, removeAllInputs, removeAllOutputs, removeInputSynapse, removeOutputSynapse, resetInputListeners, run, setAllInputs, setAllOutputs, setBias, setConnDimensions, setInputDimension, setInputSynapses, setLayerName, setOutputDimension, setOutputSynapses, setRows, start, stop, sumBackInput, sumInput, toString

 

Methods inherited from class java.lang.Object

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

 

Field Detail

log

private static final org.joone.log.ILogger log

---

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

---

LayerWidth

private int LayerWidth

---

LayerHeight

private int LayerHeight

---

LayerDepth

private int LayerDepth

---

space_map

private SpatialMap space_map

---

timeConstant

private double timeConstant

---

orderingPhase

private int orderingPhase

---

initialGaussianSize

private double initialGaussianSize

---

NeighborhoodSize

private double NeighborhoodSize

Constructor Detail

GaussianLayer

public GaussianLayer()

The default constructor for this GaussianLayer.

---

GaussianLayer

public GaussianLayer(java.lang.String ElemName)

The constructor that takes a name of the layer.

Method Detail

backward

public void backward(double[] pattern)
              throws org.joone.exception.JooneRuntimeException

This method has a blank body as there are no biases to adjust.

Overrides:

backward in class SimpleLayer

---

forward

public void forward(double[] pattern)
             throws org.joone.exception.JooneRuntimeException

This method takes as input an array of euclidean distances between the input and weights calculated by the previous synapse. This method calculates the Gaussian distance fall off between the winning neuron and all other nodes. These distances are passed on to the next synapse.

Specified by:

forward in class Layer

---

getLayerDepth

public int getLayerDepth()

Getter for property LayerDepth.

---

setLayerDepth

public void setLayerDepth(int LayerDepth)

Setter for property LayerDepth.

---

getLayerHeight

public int getLayerHeight()

Getter for property LayerHeight.

---

setLayerHeight

public void setLayerHeight(int LayerHeight)

Setter for property LayerHeight.

---

getLayerWidth

public int getLayerWidth()

Getter for property LayerWidth.

---

setLayerWidth

public void setLayerWidth(int LayerWidth)

Setter for property LayerWidth.

---

getLargestDimension

public int getLargestDimension()

Gets the largest layer dimension size.

---

check

public java.util.TreeSet check()

Check that there are no errors or problems with the properties of this GaussianLayer.

Specified by:

check in interface NeuralLayer

Overrides:

check in class Layer

---

netStarted

public void netStarted(NeuralNetEvent e)

Initialises the time constant used to decrease the size of the spatial map.

Specified by:

netStarted in interface NeuralNetListener

Overrides:

netStarted in class Layer

---

cicleTerminated

public void cicleTerminated(NeuralNetEvent e)

Updates the Gaussian Size if in learning mode.

Specified by:

cicleTerminated in interface NeuralNetListener

Overrides:

cicleTerminated in class Layer

---

getOrderingPhase

public int getOrderingPhase()

Getter for property orderingPhase.

---

setOrderingPhase

public void setOrderingPhase(int orderingPhase)

Setter for property orderingPhase.

---

getTimeConstant

public double getTimeConstant()

Getter for property timeConstant.

---

setTimeConstant

public void setTimeConstant(double timeConstant)

Setter for property timeConstant.

---

getSpace_map

protected SpatialMap getSpace_map()

Getter for property space_map.

---

getInitialGaussianSize

public double getInitialGaussianSize()

Getter for property initialGaussianSize.

---

setInitialGaussianSize

public void setInitialGaussianSize(double initialGaussianSize)

Setter for property initialGaussianSize.

---

Inspections

public java.util.Collection Inspections()

It doesn't make sense to return biases for this layer

Specified by:

Inspections in interface org.joone.inspection.Inspectable

Overrides:

Inspections in class Layer

---

Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> joone >> [ engine overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

---