keel.Algorithms.Neural_Networks.NNEP_Common.mutators.structural

Class ExpNeuronStructuralMutator

java.lang.Object

keel.Algorithms.Neural_Networks.NNEP_Common.mutators.structural.ExpNeuronStructuralMutator

All Implemented Interfaces:

INeuronStructuralMutator<ExpNeuron>

public class ExpNeuronStructuralMutator
extends java.lang.Object
implements INeuronStructuralMutator<ExpNeuron>

Structural Mutator of Product Unit Neurons.

Since:

JDK1.5

Version:

0.1

Author:

Written by Pedro Antonio Gutierrez Penia (University of Cordoba) 16/7/2007, Written by Aaron Ruiz Mora (University of Cordoba) 16/7/2007

Field Summary

Fields

Modifier and Type	Field and Description
protected IRandGen	randgen Random generator used in mutation
protected double	significativeWeigth Minimum value of new weigths

Constructor Summary

Constructors

Constructor and Description
ExpNeuronStructuralMutator() Empty constructor

Method Summary

Modifier and Type	Method and Description
boolean	addLink(ExpNeuron neuron, LinkedLayer layer, ILayer<? extends INeuron> previousLayer, int indexNeuron, int indexOrigin) Adds a link to a neuron of an specific layer from a specific origin neuron
void	addNeuron(ExpNeuron neuron, LinkedLayer layer, ILayer<? extends INeuron> previousLayer, LinkedLayer nextLayer) Adds a neuron into a specific layer
IRandGen	getRandgen() Returns the random generator used in mutation
double	getSignificativeWeigth() Returns the minimum value of new weigths
boolean	removeLink(ExpNeuron neuron, int indexOrigin) Removes a link of a neuron of an specific layer from a specific origin neuron
void	removeNeuron(LinkedLayer layer, LinkedLayer nextLayer, int indexNeuron) Removes a neuron of a specific layer
void	setRandgen(IRandGen randgen) Sets the random generator used in mutation
void	setSignificativeWeigth(double significativeWeigth) Sets the minimum value of new weigths
void	unitNeuronsWeights(ExpNeuron firstNeuron, ExpNeuron secondNeuron, LinkedLayer layer, LinkedLayer nextLayer, int indexFirstNeuron, int indexSecondNeuron) Units the weights of two specific neurons, and stores the result in the first neuron

Methods inherited from class java.lang.Object

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

Field Detail

randgen

protected IRandGen randgen

Random generator used in mutation

significativeWeigth

protected double significativeWeigth

Minimum value of new weigths

Constructor Detail

ExpNeuronStructuralMutator

public ExpNeuronStructuralMutator()

Empty constructor

Method Detail

getRandgen

public IRandGen getRandgen()

Returns the random generator used in mutation

Returns:

IRandGen Random generator

setRandgen

public void setRandgen(IRandGen randgen)

Sets the random generator used in mutation

Parameters:

randgen - New random generator

getSignificativeWeigth

public double getSignificativeWeigth()

Returns the minimum value of new weigths

Returns:

double Minimum value of new weigths

setSignificativeWeigth

public void setSignificativeWeigth(double significativeWeigth)

Sets the minimum value of new weigths

Parameters:

significativeWeigth - New minimum value of new weigths

addNeuron

public void addNeuron(ExpNeuron neuron,
                      LinkedLayer layer,
                      ILayer<? extends INeuron> previousLayer,
                      LinkedLayer nextLayer)

Adds a neuron into a specific layer

Specified by:

addNeuron in interface INeuronStructuralMutator<ExpNeuron>

Parameters:

neuron - Neuron to add into the layer

layer - Hidden layer to add the neuron

previousLayer - Previous layer to the selected hidden layer

nextLayer - Next layer to the selected hidden layer

removeNeuron

public void removeNeuron(LinkedLayer layer,
                         LinkedLayer nextLayer,
                         int indexNeuron)

Removes a neuron of a specific layer

Specified by:

removeNeuron in interface INeuronStructuralMutator<ExpNeuron>

Parameters:

layer - Hidden layer to remove the neuron

nextLayer - Next layer to the selected hidden layer

indexNeuron - Index of neuron to remove

addLink

public boolean addLink(ExpNeuron neuron,
                       LinkedLayer layer,
                       ILayer<? extends INeuron> previousLayer,
                       int indexNeuron,
                       int indexOrigin)

Adds a link to a neuron of an specific layer from a specific origin neuron

Specified by:

addLink in interface INeuronStructuralMutator<ExpNeuron>

Parameters:

neuron - Neuron to add the link

layer - Hidden layer to add the link

previousLayer - Previous layer to the selected hidden layer

indexNeuron - Index of neuron to add the link

indexOrigin - Index of neuron that its link come from in the previous layer

Returns:

true

removeLink

public boolean removeLink(ExpNeuron neuron,
                          int indexOrigin)

Removes a link of a neuron of an specific layer from a specific origin neuron

Specified by:

removeLink in interface INeuronStructuralMutator<ExpNeuron>

Parameters:

neuron - Neuron to remove the link

indexOrigin - Index of neuron that its link come from in the previous layer

Returns:

true

unitNeuronsWeights

public void unitNeuronsWeights(ExpNeuron firstNeuron,
                               ExpNeuron secondNeuron,
                               LinkedLayer layer,
                               LinkedLayer nextLayer,
                               int indexFirstNeuron,
                               int indexSecondNeuron)

Units the weights of two specific neurons, and stores the result in the first neuron

Specified by:

unitNeuronsWeights in interface INeuronStructuralMutator<ExpNeuron>

Parameters:

firstNeuron - First Neuron to unit its weights

secondNeuron - Second Neuron to unit its weights

layer - Hidden layer to unit the weights of two selected neurons

nextLayer - Next layer to the selected hidden layer

indexFirstNeuron - Index of the first neuron to unit

indexSecondNeuron - Index of the second neuron to unit