/**
* Returns the generational distance of solution set
*
* @param solutionSet
* @return The value of the hypervolume indicator
*/
public double getGD(SolutionSet solutionSet) {
return new GenerationalDistance()
.generationalDistance(
solutionSet.writeObjectivesToMatrix(),
trueParetoFront_.writeObjectivesToMatrix(),
problem_.getNumberOfObjectives());
} // getGD
/**
* Returns the hypervolume of solution set
*
* @param solutionSet
* @return The value of the hypervolume indicator
*/
public double getHypervolume(SolutionSet solutionSet) {
return new Hypervolume()
.hypervolume(
solutionSet.writeObjectivesToMatrix(),
trueParetoFront_.writeObjectivesToMatrix(),
problem_.getNumberOfObjectives());
} // getHypervolume
/**
* Returns the epsilon indicator of solution set
*
* @param solutionSet
* @return The value of the hypervolume indicator
*/
public double getEpsilon(SolutionSet solutionSet) {
return new Epsilon()
.epsilon(
solutionSet.writeObjectivesToMatrix(),
trueParetoFront_.writeObjectivesToMatrix(),
problem_.getNumberOfObjectives());
} // getEpsilon
/**
* Returns the spread of solution set
*
* @param solutionSet
* @return The value of the hypervolume indicator
*/
public double getSpread(SolutionSet solutionSet) {
return new Spread()
.spread(
solutionSet.writeObjectivesToMatrix(),
trueParetoFront_.writeObjectivesToMatrix(),
problem_.getNumberOfObjectives());
} // getGD
/**
* Constructor
*
* @param paretoFrontFile
*/
public QualityIndicator(Problem problem, String paretoFrontFile) {
problem_ = problem;
utilities_ = new qualityIndicator.util.MetricsUtil();
trueParetoFront_ = utilities_.readNonDominatedSolutionSet(paretoFrontFile);
trueParetoFrontHypervolume_ =
new Hypervolume()
.hypervolume(
trueParetoFront_.writeObjectivesToMatrix(),
trueParetoFront_.writeObjectivesToMatrix(),
problem_.getNumberOfObjectives());
} // Constructor