org.moeaframework.core.indicator
Class NormalizedIndicator

java.lang.Object
  org.moeaframework.core.indicator.NormalizedIndicator

All Implemented Interfaces:

Indicator

Direct Known Subclasses:

AdditiveEpsilonIndicator, GenerationalDistance, Hypervolume, InvertedGenerationalDistance, MaximumParetoFrontError, RIndicator

public abstract class NormalizedIndicator
extends Object
implements Indicator

Abstract class for indicators that require normalized approximation and reference sets.

Field Summary

protected Problem

problem The problem.

Constructor Summary

NormalizedIndicator(Problem problem, NondominatedPopulation referenceSet)
Constructs a normalized indicator for the specified problem and corresponding reference set.

Method Summary

protected NondominatedPopulation	getNormalizedReferenceSet() Returns the normalized reference set.
protected NondominatedPopulation	normalize(NondominatedPopulation approximationSet) Normalizes the specified approximation set.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.moeaframework.core.Indicator

evaluate

Field Detail

problem

protected final Problem problem

The problem.

Constructor Detail

NormalizedIndicator

public NormalizedIndicator(Problem problem,
                           NondominatedPopulation referenceSet)

Constructs a normalized indicator for the specified problem and corresponding reference set.

Parameters:

problem - the problem

referenceSet - the reference set for the problem

Throws:

IllegalArgumentException - if the reference set contains fewer than two solutions

Method Detail

normalize

protected NondominatedPopulation normalize(NondominatedPopulation approximationSet)

Normalizes the specified approximation set.

Parameters:

approximationSet - the approximation set to be normalized

Returns:

a new population representing the normalized approximation set

getNormalizedReferenceSet

protected NondominatedPopulation getNormalizedReferenceSet()

Returns the normalized reference set.

Returns:

the normalized reference set