All Implemented Interfaces:

Setup, Singleton, SteadyStateStatisticsForm, Serializable

public class HypervolumeStatistics
extends SimpleStatistics 

Author:

Eric O. Scott

See Also:

Serialized Form

• Field Summary

  Fields

  Modifier and Type	Field and Description
  static String	P_REFERENCE_POINT
  private double[]	referencePoint

  • Fields inherited from class ec.simple.SimpleStatistics

    best_of_run, compress, doDescription, doFinal, doGeneration, doMessage, doPerGenerationDescription, P_COMPRESS, P_DO_DESCRIPTION, P_DO_FINAL, P_DO_GENERATION, P_DO_MESSAGE, P_DO_PER_GENERATION_DESCRIPTION, P_STATISTICS_FILE, statisticslog

  • Fields inherited from class ec.Statistics

    children, P_CHILD, P_MUZZLE, P_NUMCHILDREN, P_SILENT, P_SILENT_FILE, P_SILENT_PRINT, silentFile, silentPrint

• Constructor Summary

  Constructors

  Constructor and Description
  HypervolumeStatistics ()

• Method Summary

  All Methods

  Modifier and Type	Method and Description
  private static double	exclusiveHypervolume (ArrayList<Individual> paretoFront, int indID, double[] referencePoint) Compute the exclusive hypervolume of the indIDth element of a collection of points against the elements whose ID is greater than indID.
  void	finalStatistics (EvolutionState state, int result) Logs the best individual of the run.
  double[]	getReferencePoint ()
  double	hypervolume (ArrayList<Individual> paretoFront) Compute the hypervolume of the Pareto front induced by a collection of points, relative to the reference point that was provided to this class's setup() method.
  static double	hypervolume (ArrayList<Individual> paretoFront, double[] referencePoint) Compute the hypervolume of the Pareto front induced by a collection of points, relative to the provided reference point.
  double	inclusiveHypervolume (Individual ind) Compute the hypervolume covered by a single individual, relative to the reference point that was provided to this class's setup() method.
  static double	inclusiveHypervolume (Individual ind, double[] referencePoint) Compute the hypervolume covered by a single individual, relative to the provided reference point.
  private static ArrayList<Individual>	limitSet (ArrayList<Individual> paretoFront, int indID, double[] referencePoint) Compute a set of points that define the boundary of the *intersection* between an individual's inclusive hypervolume and the area dominated by all the points in the front that follow indID (i.e.
  void	postEvaluationStatistics (EvolutionState state) GENERATIONAL: Called immediately after evaluation occurs.
  void	setup (EvolutionState state, Parameter base) Sets up the object by reading it from the parameters stored in state, built off of the parameter base base.

  • Methods inherited from class ec.simple.SimpleStatistics

    bypassFinalStatistics, bypassPostEvaluationStatistics, getBestSoFar, postInitializationStatistics

  • Methods inherited from class ec.Statistics

    enteringInitialPopulationStatistics, enteringSteadyStateStatistics, generationBoundaryStatistics, individualsBredStatistics, individualsEvaluatedStatistics, postBreedingStatistics, postCheckpointStatistics, postPostBreedingExchangeStatistics, postPreBreedingExchangeStatistics, preBreedingStatistics, preCheckpointStatistics, preEvaluationStatistics, preInitializationStatistics, prePostBreedingExchangeStatistics, prePreBreedingExchangeStatistics

  • Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Methods inherited from interface ec.steadystate.SteadyStateStatisticsForm

    enteringInitialPopulationStatistics, enteringSteadyStateStatistics, generationBoundaryStatistics, individualsBredStatistics, individualsEvaluatedStatistics, postCheckpointStatistics, postPostBreedingExchangeStatistics, postPreBreedingExchangeStatistics, preCheckpointStatistics, prePostBreedingExchangeStatistics, prePreBreedingExchangeStatistics

• Field Detail

  • P_REFERENCE_POINT

    public static final String P_REFERENCE_POINT

    See Also:

    Constant Field Values

  • referencePoint

    private double[] referencePoint

• Constructor Detail

  • HypervolumeStatistics

    public HypervolumeStatistics()

• Method Detail

  • getReferencePoint

    public double[] getReferencePoint()

  • setup

    public void setup(EvolutionState state,
     Parameter base)

    Description copied from interface: Setup
    Sets up the object by reading it from the parameters stored in state, built off of the parameter base base. If an ancestor implements this method, be sure to call super.setup(state,base); before you do anything else.

    Specified by:

    setup in interface Setup

    Overrides:

    setup in class SimpleStatistics

  • postEvaluationStatistics

    public void postEvaluationStatistics(EvolutionState state)

    Description copied from class: Statistics
    GENERATIONAL: Called immediately after evaluation occurs.

    Overrides:

    postEvaluationStatistics in class SimpleStatistics

  • hypervolume

    public double hypervolume(ArrayList<Individual> paretoFront)

    Compute the hypervolume of the Pareto front induced by a collection of points, relative to the reference point that was provided to this class's setup() method.

  • hypervolume

    public static double hypervolume(ArrayList<Individual> paretoFront,
     double[] referencePoint)

    Compute the hypervolume of the Pareto front induced by a collection of points, relative to the provided reference point.

  • exclusiveHypervolume

    private static double exclusiveHypervolume(ArrayList<Individual> paretoFront,
     int indID,
     double[] referencePoint)

    Compute the exclusive hypervolume of the indIDth element of a collection of points against the elements whose ID is greater than indID. Note that this does not compute the exclusive hypervolume with respect to *every* other element in the collection, but only the elements that follow indID!

  • inclusiveHypervolume

    public double inclusiveHypervolume(Individual ind)

    Compute the hypervolume covered by a single individual, relative to the reference point that was provided to this class's setup() method.

  • inclusiveHypervolume

    public static double inclusiveHypervolume(Individual ind,
     double[] referencePoint)

    Compute the hypervolume covered by a single individual, relative to the provided reference point.

  • limitSet

    private static ArrayList<Individual> limitSet(ArrayList<Individual> paretoFront,
     int indID,
     double[] referencePoint)

    Compute a set of points that define the boundary of the *intersection* between an individual's inclusive hypervolume and the area dominated by all the points in the front that follow indID (i.e. that have an index greater than indID).

  • finalStatistics

    public void finalStatistics(EvolutionState state,
     int result)

    Logs the best individual of the run.

    Specified by:

    finalStatistics in interface SteadyStateStatisticsForm

    Overrides:

    finalStatistics in class SimpleStatistics