org.encog.neural.neat.training.opp

Class NEATMutateAddNode

java.lang.Object

org.encog.neural.neat.training.opp.NEATMutation

org.encog.neural.neat.training.opp.NEATMutateAddNode

All Implemented Interfaces:

java.io.Serializable, EvolutionaryOperator

public class NEATMutateAddNode
extends NEATMutation
implements java.io.Serializable

Mutate a genome by adding a new node. To do this a random link is chosen. The a neuron is created to split this link. This removes one link and adds two new links. The weights on the new link are created to minimize changes to the values produced by the neuron. ----------------------------------------------------------------------------- http://www.cs.ucf.edu/~kstanley/ Encog's NEAT implementation was drawn from the following three Journal Articles. For more complete BibTeX sources, see NEATNetwork.java. Evolving Neural Networks Through Augmenting Topologies Generating Large-Scale Neural Networks Through Discovering Geometric Regularities Automatic feature selection in neuroevolution

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
NEATMutateAddNode()

Method Summary

Modifier and Type	Method and Description
void	performOperation(java.util.Random rnd, Genome[] parents, int parentIndex, Genome[] offspring, int offspringIndex) Perform the evolutionary operation.

Methods inherited from class org.encog.neural.neat.training.opp.NEATMutation

chooseRandomNeuron, createLink, getElementPos, getOwner, init, isDuplicateLink, isNeuronNeeded, obtainGenome, offspringProduced, parentsNeeded, removeNeuron

Methods inherited from class java.lang.Object

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

Constructor Detail

NEATMutateAddNode

public NEATMutateAddNode()

Method Detail

performOperation

public void performOperation(java.util.Random rnd,
                             Genome[] parents,
                             int parentIndex,
                             Genome[] offspring,
                             int offspringIndex)

Perform the evolutionary operation.

Specified by:

performOperation in interface EvolutionaryOperator

Parameters:

rnd - A random number generator.

parents - The parents.

parentIndex - The index into the parents array.

offspring - The offspring.

offspringIndex - An index into the offspring array.