public override IOperation Apply()
{
BinaryVector binaryVector = BinaryVectorParameter.ActualValue;
OneBitflipMove move = OneBitflipMoveParameter.ActualValue;
BinaryVector newSolution = new BinaryVector(binaryVector);
newSolution[move.Index] = !newSolution[move.Index];
DoubleValue quality = KnapsackEvaluator.Apply(newSolution,
KnapsackCapacityParameter.ActualValue,
PenaltyParameter.ActualValue,
WeightsParameter.ActualValue,
ValuesParameter.ActualValue).Quality;
double moveQuality = quality.Value;
if (MoveQualityParameter.ActualValue == null)
{
MoveQualityParameter.ActualValue = new DoubleValue(moveQuality);
}
else
{
MoveQualityParameter.ActualValue.Value = moveQuality;
}
return(base.Apply());
}
public override IOperation Apply()
{
BinaryVector binaryVector = BinaryVectorParameter.ActualValue;
OneBitflipMove move = OneBitflipMoveParameter.ActualValue;
double moveQuality = QualityParameter.ActualValue.Value;
if (binaryVector[move.Index])
{
moveQuality -= 1.0;
}
else
{
moveQuality += 1.0;
}
if (MoveQualityParameter.ActualValue == null)
{
MoveQualityParameter.ActualValue = new DoubleValue(moveQuality);
}
else
{
MoveQualityParameter.ActualValue.Value = moveQuality;
}
return(base.Apply());
}
public override IOperation Apply()
{
BinaryVector binaryVector = BinaryVectorParameter.ActualValue;
OneBitflipMove move = OneBitflipMoveParameter.ActualValue;
BoolMatrix interactions = GeneInteractionsParameter.ActualValue;
DoubleArray weights = WeightsParameter.ActualValue;
int seed = InteractionSeedParameter.ActualValue.Value;
double moveQuality = QualityParameter.ActualValue.Value;
int q = QParameter.ActualValue.Value;
double p = PParameter.ActualValue.Value;
List <int> affectedFitnessComponents = new List <int>();
for (int c = 0; c < interactions.Columns; c++)
{
if (interactions[move.Index, c])
{
affectedFitnessComponents.Add(c);
}
}
BinaryVector moved = new BinaryVector(binaryVector);
MovedBinaryVectorParameter.ActualValue = moved;
moved[move.Index] = !moved[move.Index];
if (affectedFitnessComponents.Count * 2 > interactions.Columns)
{
double[] f_i;
moveQuality = NKLandscape.Evaluate(moved, interactions, weights, seed, out f_i, q, p);
}
else
{
long x = NKLandscape.Encode(binaryVector);
long y = NKLandscape.Encode(moved);
long[] g = NKLandscape.Encode(interactions);
double[] w = NKLandscape.Normalize(weights);
foreach (var c in affectedFitnessComponents)
{
moveQuality -= w[c % w.Length] * NKLandscape.F_i(x, c, g[c], seed, q, p);
moveQuality += w[c % w.Length] * NKLandscape.F_i(y, c, g[c], seed, q, p);
}
}
if (MoveQualityParameter.ActualValue == null)
{
MoveQualityParameter.ActualValue = new DoubleValue(moveQuality);
}
else
{
MoveQualityParameter.ActualValue.Value = moveQuality;
}
return(base.Apply());
}