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

java.lang.Object
  extended by org.encog.neural.neat.training.opp.NEATMutation
      extended by org.encog.neural.neat.training.opp.NEATMutateAddNode
All Implemented Interfaces:
EvolutionaryOperator

public class NEATMutateAddNode
extends NEATMutation

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


Constructor Summary
NEATMutateAddNode()
           
 
Method Summary
 void performOperation(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
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

NEATMutateAddNode

public NEATMutateAddNode()
Method Detail

performOperation

public void performOperation(Random rnd,
                             Genome[] parents,
                             int parentIndex,
                             Genome[] offspring,
                             int offspringIndex)
Perform the evolutionary operation.

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.


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