public QualityIndicator(Problem problem, String paretoFrontFile)
{
_problem = problem;
_trueParetoFront = MetricsUtil.ReadNonDominatedSolutionSet(paretoFrontFile);
_trueParetoFrontHypervolume = new Hypervolume().HypervolumeValue(
_trueParetoFront.WriteObjectivesToMatrix(),
_trueParetoFront.WriteObjectivesToMatrix(),
_problem.NumberOfObjectives);
}
/**
* Returns the generational distance of solution set
* @param solutionSet Solution set
* @return The value of the hypervolume indicator
*/
public double GetGd(SolutionSet solutionSet)
{
return new GenerationalDistance().Compute(
solutionSet.WriteObjectivesToMatrix(),
_trueParetoFront.WriteObjectivesToMatrix(),
_problem.NumberOfObjectives);
}
/**
* Returns the spread of solution set
* @param solutionSet Solution set
* @return The value of the hypervolume indicator
*/
public double GetSpread(SolutionSet solutionSet)
{
return new Spread().Compute(solutionSet.WriteObjectivesToMatrix(),
_trueParetoFront.WriteObjectivesToMatrix(),
_problem.NumberOfObjectives);
}
/**
* Returns the hypervolume of solution set
* @param solutionSet Solution set
* @return The value of the hypervolume indicator
*/
public double GetHypervolume(SolutionSet solutionSet)
{
return new Hypervolume().HypervolumeValue(solutionSet.WriteObjectivesToMatrix(),
_trueParetoFront.WriteObjectivesToMatrix(),
_problem.NumberOfObjectives);
}