public bool IsDominatedBy(ParetoFrontPoint other)
{
return(other.Fitness >= Fitness &&
other.Simplicity > Simplicity ||
other.Fitness > Fitness &&
other.Simplicity >= Simplicity);
}
public WinnerViewModel(ParetoFrontPoint paretoFrontPoint, IReadOnlyList <float> evaluationResult, int run, int generation)
{
ParetoFrontPoint = paretoFrontPoint;
EvaluationResult = evaluationResult;
Run = run;
Generation = generation;
}
private static void SetParetoRank(ParetoFrontPoint point, ICollection <ParetoFrontPoint> ranks)
{
var maxNonDominantFrontNumber = 0;
foreach (var r in ranks)
{
if (point.IsDominatedBy(r) && maxNonDominantFrontNumber < r.Rank)
{
maxNonDominantFrontNumber = r.Rank;
}
}
point.Rank = maxNonDominantFrontNumber + 1;
ranks.Add(point);
}
public bool IsBetterThan(ParetoFrontPoint other)
{
if (this == other)
{
return(false);
}
if (Rank < other.Rank)
{
return(true);
}
if (Rank > other.Rank)
{
return(false);
}
if (Sparsity < other.Sparsity)
{
return(false);
}
if (Sparsity > other.Sparsity)
{
return(true);
}
if (Fitness > other.Fitness)
{
return(true);
}
if (Fitness < other.Fitness)
{
return(false);
}
if (Simplicity > other.Simplicity)
{
return(true);
}
if (Simplicity < other.Simplicity)
{
return(false);
}
return(false);
}
private static bool IsBetterFitness(ParetoFrontPoint curr, ParetoFrontPoint candidate)
{
return(curr.Fitness < candidate.Fitness ||
Math.Abs(curr.Fitness - candidate.Fitness) <= float.Epsilon && curr.Complexity > candidate.Complexity);
}
private static bool IsBetterComplexity(ParetoFrontPoint curr, ParetoFrontPoint candidate)
{
return(curr.Complexity > candidate.Complexity ||
curr.Complexity == candidate.Complexity && curr.Fitness < candidate.Fitness);
}
