public override IChromosome Clone()
{
BitArrayChromosome clone = new BitArrayChromosome(_length)
{
Value = new BitArray(Value),
fitness = fitness
};
return(clone);
}
public double Evaluate(IChromosome chromosome)
{
BitArrayChromosome bitArrayChromosome = (BitArrayChromosome)chromosome;
if (_problem.IsSatisfiedSafe(bitArrayChromosome.Value))
{
return(_problem.GetWeightSafe(bitArrayChromosome.Value) + 100);
}
double percentageOfSatisfiedClausulesSafe = _problem.GetPercentageOfSatisfiedClausulesSafe(bitArrayChromosome.Value);
if (Math.Abs(percentageOfSatisfiedClausulesSafe - 0) < 0.001)
{
return(1);
}
return(percentageOfSatisfiedClausulesSafe);
}
public override void Crossover(IChromosome pair)
{
BitArrayChromosome p = (BitArrayChromosome)pair;
if (p != null && p._length == _length)
{
int crossoverPoint = Random.Next(_length);
BitArray mask1 = new BitArray(_length, false);
BitArray mask2 = new BitArray(_length, true);
for (int i = crossoverPoint; i < _length; i++)
{
mask1[i] = true;
mask2[i] = false;
}
BitArray newOne = Value.And(mask1).Or(p.Value.And(mask2));
BitArray newSecond = p.Value.And(mask1).Or(Value.And(mask2));
Value = newOne;
p.Value = newSecond;
}
}