/// <summary>
/// Construct with default set of parameters.
/// </summary>
public NeatGenomeParameters()
{
// Previous default option:
// _normalNeuronActivFn = SteepenedSigmoid.__DefaultInstance;
_normalNeuronActivFn = InverseAbsoluteSteepSigmoid.__DefaultInstance;
_regulatoryActivFn = StepFunctionOffset.__DefaultInstance;
_outputNeuronActivFn = Proportional.__DefaultInstance;
_connectionWeightRange = DefaultConnectionWeightRange;
_initialInterconnectionsProportion = DefaultInitialInterconnectionsProportion;
_disjointExcessGenesRecombineProbability = DefaultDisjointExcessGenesRecombineProbability;
_connectionWeightMutationProbability = DefaultConnectionWeightMutationProbability;
_addNodeMutationProbability = DefaultAddNodeMutationProbability;
_addConnectionMutationProbability = DefaultAddConnectionMutationProbability;
_nodeAuxStateMutationProbability = DefaultNodeAuxStateMutationProbability;
_deleteConnectionMutationProbability = DefaultDeleteConnectionMutationProbability;
_rouletteWheelLayout = CreateRouletteWheelLayout();
_rouletteWheelLayoutNonDestructive = CreateRouletteWheelLayout_NonDestructive();
// Create a connection weight mutation scheme.
_connectionMutationInfoList = CreateConnectionWeightMutationScheme_Default();
// No fitness history.
_fitnessHistoryLength = 0;
}
/// <summary>
/// Returns the default connection weight mutation scheme.
/// </summary>
/* private ConnectionMutationInfoList CreateConnectionWeightMutationScheme_Default()
* {
* ConnectionMutationInfoList list = new ConnectionMutationInfoList(12);
*
* // Gaussian jiggle with sigma=0.02 (most values between +-0.04)
* // Jiggle 1,2 and 3 connections respectively.
* list.Add(new ConnectionMutationInfo(0.11375, ConnectionPerturbanceType.JiggleGaussian,
* ConnectionSelectionType.FixedQuantity, 0.0, 1, 0.0, 0.02));
*
* list.Add(new ConnectionMutationInfo(0.11375, ConnectionPerturbanceType.JiggleGaussian,
* ConnectionSelectionType.FixedQuantity, 0.0, 2, 0.0, 0.02));
*
* list.Add(new ConnectionMutationInfo(0.11375, ConnectionPerturbanceType.JiggleGaussian,
* ConnectionSelectionType.FixedQuantity, 0.0, 3, 0.0, 0.02));
*
* // Jiggle 2% of connections.
* list.Add(new ConnectionMutationInfo(0.11375, ConnectionPerturbanceType.JiggleGaussian,
* ConnectionSelectionType.Proportional, 0.02, 0, 0.0, 0.02));
*
* // Gaussian jiggle with sigma=1 (most values between +-2)
* // Jiggle 1,2 and 3 connections respectively.
* list.Add(new ConnectionMutationInfo(0.11375, ConnectionPerturbanceType.JiggleGaussian,
* ConnectionSelectionType.FixedQuantity, 0.0, 1, 0.0, 1));
*
* list.Add(new ConnectionMutationInfo(0.11375, ConnectionPerturbanceType.JiggleGaussian,
* ConnectionSelectionType.FixedQuantity, 0.0, 2, 0.0, 1));
*
* list.Add(new ConnectionMutationInfo(0.11375, ConnectionPerturbanceType.JiggleGaussian,
* ConnectionSelectionType.FixedQuantity, 0.0, 3, 0.0, 1));
*
* // Jiggle 2% of connections.
* list.Add(new ConnectionMutationInfo(0.11275, ConnectionPerturbanceType.JiggleGaussian,
* ConnectionSelectionType.Proportional, 0.02, 0, 0.0, 1));
*
* // Reset mutations. 1, 2 and 3 connections respectively.
* list.Add(new ConnectionMutationInfo(0.03, ConnectionPerturbanceType.Reset,
* ConnectionSelectionType.FixedQuantity, 0.0, 1, 0.0, 0));
*
* list.Add(new ConnectionMutationInfo(0.03, ConnectionPerturbanceType.Reset,
* ConnectionSelectionType.FixedQuantity, 0.0, 2, 0.0, 0));
*
* list.Add(new ConnectionMutationInfo(0.03, ConnectionPerturbanceType.Reset,
* ConnectionSelectionType.FixedQuantity, 0.0, 3, 0.0, 0));
*
* // Reset 2% of connections.
* list.Add(new ConnectionMutationInfo(0.001, ConnectionPerturbanceType.Reset,
* ConnectionSelectionType.Proportional, 0.02, 0, 0.0, 0));
* list.Initialize();
* return list;
* }*/
private ConnectionMutationInfoList CreateConnectionWeightMutationScheme_Default()
{
ConnectionMutationInfoList list = new ConnectionMutationInfoList(2);
// Inspired by original NEAT
/* // Gaussian jiggle with sigma=0.02 (most values between +-0.04)
* // Jiggle 90% of connections with 90% chance.
* list.Add(new ConnectionMutationInfo(0.9, ConnectionPerturbanceType.JiggleGaussian,
* ConnectionSelectionType.Proportional, 0.9, 0, 0.0, 0.02));
*
* // Reset 10% of connections with 10% chance.
* list.Add(new ConnectionMutationInfo(0.1, ConnectionPerturbanceType.Reset,
* ConnectionSelectionType.Proportional, 0.1, 0, 0.0, 0));*/
// Gaussian jiggle with sigma=0.04
// Jiggle 90% of connections with 90% chance.
list.Add(new ConnectionMutationInfo(0.9, ConnectionPerturbanceType.JiggleGaussian,
ConnectionSelectionType.Proportional, 0.9, 0, 0.0, 0.02));
// Reset 20% of connections with 10% chance.
list.Add(new ConnectionMutationInfo(0.1, ConnectionPerturbanceType.Reset,
ConnectionSelectionType.Proportional, 0.2, 0, 0.0, 0));
list.Initialize();
return(list);
}
/// <summary>
/// Returns the default connection weight mutation scheme.
/// </summary>
private ConnectionMutationInfoList CreateConnectionWeightMutationScheme_Default()
{
ConnectionMutationInfoList list = new ConnectionMutationInfoList(6);
// Gaussian jiggle with sigma=0.01 (most values between +-0.02)
// Jiggle 1,2 and 3 connections respectively.
list.Add(new ConnectionMutationInfo(0.5985, ConnectionPerturbanceType.JiggleGaussian,
ConnectionSelectionType.FixedQuantity, 0.0, 1, 0.0, 0.01));
list.Add(new ConnectionMutationInfo(0.2985, ConnectionPerturbanceType.JiggleGaussian,
ConnectionSelectionType.FixedQuantity, 0.0, 2, 0.0, 0.01));
list.Add(new ConnectionMutationInfo(0.0985, ConnectionPerturbanceType.JiggleGaussian,
ConnectionSelectionType.FixedQuantity, 0.0, 3, 0.0, 0.01));
// Reset mutations. 1, 2 and 3 connections respectively.
list.Add(new ConnectionMutationInfo(0.015, ConnectionPerturbanceType.Reset,
ConnectionSelectionType.FixedQuantity, 0.0, 1, 0.0, 0));
list.Add(new ConnectionMutationInfo(0.015, ConnectionPerturbanceType.Reset,
ConnectionSelectionType.FixedQuantity, 0.0, 2, 0.0, 0));
list.Add(new ConnectionMutationInfo(0.015, ConnectionPerturbanceType.Reset,
ConnectionSelectionType.FixedQuantity, 0.0, 3, 0.0, 0));
list.Initialize();
return(list);
}
private static ConnectionMutationInfoList CreateLargeMutationsScheme()
{
ConnectionMutationInfoList list = new ConnectionMutationInfoList(1);
// Massive jiggle of 90% of the connections with 70% chance.
list.Add(new ConnectionMutationInfo(0.7, ConnectionPerturbanceType.JiggleGaussian,
ConnectionSelectionType.Proportional, 0.9, 0, 0.0, 3.5));
list.Initialize();
return(list);
}
/// <summary>
/// Returns the default connection weight mutation scheme.
/// Customized
/// </summary>
private ConnectionMutationInfoList CreateConnectionWeightMutationScheme_Default()
{
ConnectionMutationInfoList list = new ConnectionMutationInfoList(2);
// Jiggle 80% of connections.
list.Add(new ConnectionMutationInfo(1, ConnectionPerturbanceType.JiggleGaussian,
ConnectionSelectionType.Proportional, 0.8, 0, 0.0, _connectionWeightRange * 0.1));
list.Initialize();
return(list);
}
/// <summary>
/// Returns the default connection weight mutation scheme.
/// </summary>
private ConnectionMutationInfoList CreateConnectionWeightMutationScheme_Default()
{
// DEFAULT scheme, it's crazy
ConnectionMutationInfoList list = new ConnectionMutationInfoList(12);
// Gaussian jiggle with sigma=0.02 (most values between +-0.04)
// Jiggle 1,2 and 3 connections respectively.
list.Add(new ConnectionMutationInfo(0.11375, ConnectionPerturbanceType.JiggleGaussian,
ConnectionSelectionType.FixedQuantity, 0.0, 1, 0.0, 0.02));
list.Add(new ConnectionMutationInfo(0.11375, ConnectionPerturbanceType.JiggleGaussian,
ConnectionSelectionType.FixedQuantity, 0.0, 2, 0.0, 0.02));
list.Add(new ConnectionMutationInfo(0.11375, ConnectionPerturbanceType.JiggleGaussian,
ConnectionSelectionType.FixedQuantity, 0.0, 3, 0.0, 0.02));
// Jiggle 2% of connections.
list.Add(new ConnectionMutationInfo(0.11375, ConnectionPerturbanceType.JiggleGaussian,
ConnectionSelectionType.Proportional, 0.02, 0, 0.0, 0.02));
// Gaussian jiggle with sigma=1 (most values between +-2)
// Jiggle 1,2 and 3 connections respectively.
list.Add(new ConnectionMutationInfo(0.11375, ConnectionPerturbanceType.JiggleGaussian,
ConnectionSelectionType.FixedQuantity, 0.0, 1, 0.0, 1));
list.Add(new ConnectionMutationInfo(0.11375, ConnectionPerturbanceType.JiggleGaussian,
ConnectionSelectionType.FixedQuantity, 0.0, 2, 0.0, 1));
list.Add(new ConnectionMutationInfo(0.11375, ConnectionPerturbanceType.JiggleGaussian,
ConnectionSelectionType.FixedQuantity, 0.0, 3, 0.0, 1));
// Jiggle 2% of connections.
list.Add(new ConnectionMutationInfo(0.11275, ConnectionPerturbanceType.JiggleGaussian,
ConnectionSelectionType.Proportional, 0.02, 0, 0.0, 1));
// Reset mutations. 1, 2 and 3 connections respectively.
list.Add(new ConnectionMutationInfo(0.03, ConnectionPerturbanceType.Reset,
ConnectionSelectionType.FixedQuantity, 0.0, 1, 0.0, 0));
list.Add(new ConnectionMutationInfo(0.03, ConnectionPerturbanceType.Reset,
ConnectionSelectionType.FixedQuantity, 0.0, 2, 0.0, 0));
list.Add(new ConnectionMutationInfo(0.03, ConnectionPerturbanceType.Reset,
ConnectionSelectionType.FixedQuantity, 0.0, 3, 0.0, 0));
// Reset 2% of connections.
list.Add(new ConnectionMutationInfo(0.001, ConnectionPerturbanceType.Reset,
ConnectionSelectionType.Proportional, 0.02, 0, 0.0, 0));
list.Initialize();
return(list);
}
/*
* // Gaussian jiggle with sigma=0.02 (most values between +-0.04)
* // Jiggle 1 connection
* list.Add(new ConnectionMutationInfo(0.11375, ConnectionPerturbanceType.JiggleGaussian,
* ConnectionSelectionType.FixedQuantity, 0.0, 1, 0.0, 0.02));
* // Jiggle 2% of connections.
* list.Add(new ConnectionMutationInfo(0.11375, ConnectionPerturbanceType.JiggleGaussian,
* ConnectionSelectionType.Proportional, 0.02, 0, 0.0, 0.02));
* // Gaussian jiggle with sigma=1 (most values between +-2)
* // Jiggle 3 connections
* list.Add(new ConnectionMutationInfo(0.11375, ConnectionPerturbanceType.JiggleGaussian,
* ConnectionSelectionType.FixedQuantity, 0.0, 3, 0.0, 1));
* // Jiggle 2% of connections.
* list.Add(new ConnectionMutationInfo(0.11275, ConnectionPerturbanceType.JiggleGaussian,
* ConnectionSelectionType.Proportional, 0.02, 0, 0.0, 1));
* // Reset 3 connections
* list.Add(new ConnectionMutationInfo(0.03, ConnectionPerturbanceType.Reset,
* ConnectionSelectionType.FixedQuantity, 0.0, 3, 0.0, 0));
* // Reset 2% of connections.
* list.Add(new ConnectionMutationInfo(0.001, ConnectionPerturbanceType.Reset,
* ConnectionSelectionType.Proportional, 0.02, 0, 0.0, 0));
* }*/
private ConnectionMutationInfoList CreateNormalMutationsScheme()
{
ConnectionMutationInfoList list = new ConnectionMutationInfoList(2);
// Large jiggle 90% of connections with 50% chance.
list.Add(new ConnectionMutationInfo(0.5, ConnectionPerturbanceType.JiggleGaussian,
ConnectionSelectionType.Proportional, 0.8, 0, 0.0, 0.75));
// Small jiggle 70% of connections with 50% chance.
list.Add(new ConnectionMutationInfo(0.5, ConnectionPerturbanceType.JiggleGaussian,
ConnectionSelectionType.Proportional, 0.6, 0, 0.0, 0.4));
list.Initialize();
return(list);
}
/// <summary>
/// Copy constructor.
/// </summary>
public NeatGenomeParameters(NeatGenomeParameters copyFrom)
{
_feedforwardOnly = copyFrom._feedforwardOnly;
_activationFn = copyFrom._activationFn;
_connectionWeightRange = copyFrom._connectionWeightRange;
_initialInterconnectionsProportion = copyFrom._initialInterconnectionsProportion;
_disjointExcessGenesRecombineProbability = copyFrom._disjointExcessGenesRecombineProbability;
_connectionWeightMutationProbability = copyFrom._connectionWeightMutationProbability;
_addNodeMutationProbability = copyFrom._addNodeMutationProbability;
_addConnectionMutationProbability = copyFrom._addConnectionMutationProbability;
_nodeAuxStateMutationProbability = copyFrom._nodeAuxStateMutationProbability;
_deleteConnectionMutationProbability = copyFrom._deleteConnectionMutationProbability;
_rouletteWheelLayout = new RouletteWheelLayout(copyFrom._rouletteWheelLayout);
_rouletteWheelLayoutNonDestructive = new RouletteWheelLayout(copyFrom._rouletteWheelLayoutNonDestructive);
_connectionMutationInfoList = new ConnectionMutationInfoList(copyFrom._connectionMutationInfoList);
_connectionMutationInfoList.Initialize();
_fitnessHistoryLength = copyFrom._fitnessHistoryLength;
}
/// <summary>
/// Construct with default set of parameters.
/// </summary>
public NeatGenomeParameters()
{
_activationFn = SteepenedSigmoid.__DefaultInstance;
_connectionWeightRange = DefaultConnectionWeightRange;
_initialInterconnectionsProportion = DefaultInitialInterconnectionsProportion;
_disjointExcessGenesRecombineProbability = DefaultDisjointExcessGenesRecombineProbability;
_connectionWeightMutationProbability = DefaultConnectionWeightMutationProbability;
_addNodeMutationProbability = DefaultAddNodeMutationProbability;
_addConnectionMutationProbability = DefaultAddConnectionMutationProbability;
_nodeAuxStateMutationProbability = DefaultNodeAuxStateMutationProbability;
_deleteConnectionMutationProbability = DefaultDeleteConnectionMutationProbability;
_rouletteWheelLayout = CreateRouletteWheelLayout();
_rouletteWheelLayoutNonDestructive = CreateRouletteWheelLayout_NonDestructive();
// Create a connection weight mutation scheme.
_connectionMutationInfoList = CreateConnectionWeightMutationScheme_Default();
// No fitness history.
_fitnessHistoryLength = 0;
}
/// <summary>
/// Returns the connection weight mutation scheme from SharpNEAT version 1.x
/// </summary>
private ConnectionMutationInfoList CreateConnectionWeightMutationScheme_SharpNEAT1()
{
ConnectionMutationInfoList list = new ConnectionMutationInfoList(5);
list.Add(new ConnectionMutationInfo(0.125, ConnectionPerturbanceType.JiggleUniform,
ConnectionSelectionType.Proportional, 0.5, 0, 0.05, 0.0));
list.Add(new ConnectionMutationInfo(0.125, ConnectionPerturbanceType.JiggleUniform,
ConnectionSelectionType.Proportional, 0.1, 0, 0.05, 0.0));
list.Add(new ConnectionMutationInfo(0.125, ConnectionPerturbanceType.JiggleUniform,
ConnectionSelectionType.FixedQuantity, 0.0, 1, 0.05, 0.0));
list.Add(new ConnectionMutationInfo(0.5, ConnectionPerturbanceType.Reset,
ConnectionSelectionType.Proportional, 0.1, 0, 0.0, 0.0));
list.Add(new ConnectionMutationInfo(0.125, ConnectionPerturbanceType.Reset,
ConnectionSelectionType.FixedQuantity, 0.0, 1, 0.0, 0.0));
list.Initialize();
return(list);
}
