/// <summary>
/// Reads NEAT evolution algorithm parameters from the database.
/// </summary>
/// <param name="experimentDictionary">Reference to the experiment dictionary table.</param>
/// <param name="isPrimary">Flag indicating whether this is the primary or an initialization algorithm.</param>
/// <returns>Initialized NEAT evolution algorithm parameters.</returns>
public static EvolutionAlgorithmParameters ReadNeatEvolutionAlgorithmParameters(
ExperimentDictionary experimentDictionary,
bool isPrimary)
{
return(isPrimary
? new EvolutionAlgorithmParameters
{
SpecieCount = experimentDictionary.Primary_NumSpecies,
InterspeciesMatingProportion = experimentDictionary.Primary_InterspeciesMatingProbability,
ElitismProportion = experimentDictionary.Primary_ElitismProportion,
SelectionProportion = experimentDictionary.Primary_SelectionProportion,
OffspringAsexualProportion = experimentDictionary.Primary_AsexualProbability,
OffspringSexualProportion = experimentDictionary.Primary_CrossoverProbability
}
: new EvolutionAlgorithmParameters
{
SpecieCount = experimentDictionary.Initialization_NumSpecies ?? default(int),
InterspeciesMatingProportion =
experimentDictionary.Initialization_InterspeciesMatingProbability ?? default(double),
ElitismProportion = experimentDictionary.Initialization_ElitismProportion ?? default(double),
SelectionProportion = experimentDictionary.Initialization_SelectionProportion ?? default(double),
OffspringAsexualProportion =
experimentDictionary.Initialization_AsexualProbability ?? default(double),
OffspringSexualProportion =
experimentDictionary.Initialization_CrossoverProbability ?? default(double)
});
}
/// <summary>
/// Reads NEAT genome parameters from the database.
/// </summary>
/// <param name="experimentDictionary">Reference to experiment dictionary table.</param>
/// <param name="isPrimary">Flag indicating whether this is the primary or an initialization algorithm.</param>
/// <returns>Initialized NEAT genome parameters.</returns>
public static NeatGenomeParameters ReadNeatGenomeParameters(ExperimentDictionary experimentDictionary,
bool isPrimary)
{
return(isPrimary
? new NeatGenomeParameters
{
InitialInterconnectionsProportion = experimentDictionary.Primary_ConnectionProportion,
ConnectionWeightMutationProbability =
experimentDictionary.Primary_MutateConnectionWeightsProbability,
AddConnectionMutationProbability = experimentDictionary.Primary_MutateAddConnectionProbability,
AddNodeMutationProbability = experimentDictionary.Primary_MutateAddNeuronProbability,
DeleteConnectionMutationProbability =
experimentDictionary.Primary_MutateDeleteConnectionProbability,
ConnectionWeightRange = experimentDictionary.Primary_ConnectionWeightRange
}
: new NeatGenomeParameters
{
InitialInterconnectionsProportion =
experimentDictionary.Initialization_ConnectionProportion ?? default(double),
ConnectionWeightMutationProbability =
experimentDictionary.Initialization_MutateConnectionWeightsProbability ?? default(double),
AddConnectionMutationProbability =
experimentDictionary.Initialization_MutateAddConnectionProbability ?? default(double),
AddNodeMutationProbability =
experimentDictionary.Initialization_MutateAddNeuronProbability ?? default(double),
DeleteConnectionMutationProbability =
experimentDictionary.Initialization_MutateDeleteConnectionProbability ?? default(double),
ConnectionWeightRange = experimentDictionary.Initialization_ConnectionWeightRange ?? default(double)
});
}
/// <summary>
/// Reads behavior characterization parameters from the database.
/// </summary>
/// <param name="experiment">The experiment dictionary entity.</param>
/// <param name="isPrimary">
/// Boolean flag indicating whether this is the primary behavior characterization or the behavior
/// characterization used for experiment initialization.
/// </param>
/// <returns></returns>
public static IBehaviorCharacterizationFactory ReadBehaviorCharacterizationFactory(
ExperimentDictionary experiment,
bool isPrimary)
{
// Read behavior characterization
var behaviorCharacterizationName = isPrimary
? experiment.Primary_BehaviorCharacterizationName
: experiment.Initialization_BehaviorCharacterizationName;
// Ensure that the behavior was specified
if (behaviorCharacterizationName == null)
{
throw new ArgumentException("Missing or invalid BehaviorConfig settings.");
}
IMinimalCriteria minimalCriteria = null;
// Get the appropriate minimal criteria type
var mcType = BehaviorCharacterizationUtil.ConvertStringToMinimalCriteria(isPrimary
? experiment.Primary_MCS_MinimalCriteriaName
: experiment.Initialization_MCS_MinimalCriteriaName);
// Starting location used in most criterias
double xStart, yStart;
switch (mcType)
{
case MinimalCriteriaType.EuclideanLocation:
// TODO: Not implemented at the database layer yet
break;
case MinimalCriteriaType.FixedPointEuclideanDistance:
// Read in the starting coordinates and the minimum required distance traveled
xStart = isPrimary
? experiment.Primary_MCS_MinimalCriteriaStartX ?? default(double)
: experiment.Initialization_MCS_MinimalCriteriaStartX ?? default(double);
yStart = isPrimary
? experiment.Primary_MCS_MinimalCriteriaStartY ?? default(double)
: experiment.Initialization_MCS_MinimalCriteriaStartY ?? default(double);
var minimumDistanceTraveled = isPrimary
? experiment.Primary_MCS_MinimalCriteriaThreshold ?? default(double)
: experiment.Initialization_MCS_MinimalCriteriaThreshold ?? default(double);
// Set the euclidean distance minimal criteria on the behavior characterization
minimalCriteria = new FixedPointEuclideanDistanceCriteria(xStart, yStart,
minimumDistanceTraveled);
break;
case MinimalCriteriaType.Mileage:
// Read in the starting coordinates and minimum required total distance traveled (mileage)
xStart = isPrimary
? experiment.Primary_MCS_MinimalCriteriaStartX ?? default(double)
: experiment.Initialization_MCS_MinimalCriteriaStartX ?? default(double);
yStart = isPrimary
? experiment.Primary_MCS_MinimalCriteriaStartY ?? default(double)
: experiment.Initialization_MCS_MinimalCriteriaStartY ?? default(double);
var minimumMileage = isPrimary
? experiment.Primary_MCS_MinimalCriteriaThreshold ?? default(double)
: experiment.Initialization_MCS_MinimalCriteriaThreshold ?? default(double);
// Set the mileage minimal criteria on the behavior characterization
minimalCriteria = new MileageCriteria(xStart, yStart, minimumMileage);
break;
}
// Parse and generate the appropriate behavior characterization factory
var behaviorCharacterizationFactory =
BehaviorCharacterizationUtil.GenerateBehaviorCharacterizationFactory(behaviorCharacterizationName,
minimalCriteria);
return(behaviorCharacterizationFactory);
}
