Package org.uma.jmetal.util.ranking.impl

Class StrengthRanking<S extends Solution<?>>

java.lang.Object

org.uma.jmetal.util.ranking.impl.StrengthRanking<S>

All Implemented Interfaces:

Ranking<S>

public class StrengthRanking<S extends Solution<?>>
extends Object
implements Ranking<S>

This class implements a solution list ranking based on the strength concept defined in SPEA2. The strength of solution is computed by considering the number of solutions they dominates and the strenght of the solutions dominating it. As an output, a set of subsets are obtained. The subsets are numbered starting from 0; thus, subset 0 contains the non-dominated solutions, subset 1 contains the non-dominated population after removing those belonging to subset 0, and so on.

Author:

Antonio J. Nebro

Constructor Summary

Constructors

Constructor	Description
StrengthRanking()	Constructor
StrengthRanking(Comparator<S> comparator)	Constructor

Method Summary

Modifier and Type	Method	Description
Ranking<S>	compute(List<S> solutionList)
Object	getAttributedId()
int	getNumberOfSubFronts()
Integer	getRank(S solution)
List<S>	getSubFront(int rank)

Methods inherited from class java.lang.Object

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

Constructor Details

StrengthRanking

public StrengthRanking(Comparator<S> comparator)

Constructor

StrengthRanking

public StrengthRanking()

Constructor

Method Details

compute

public Ranking<S> compute(List<S> solutionList)

Specified by:

compute in interface Ranking<S extends Solution<?>>

getSubFront

public List<S> getSubFront(int rank)

Specified by:

getSubFront in interface Ranking<S extends Solution<?>>

getNumberOfSubFronts

public int getNumberOfSubFronts()

Specified by:

getNumberOfSubFronts in interface Ranking<S extends Solution<?>>

getRank

public Integer getRank(S solution)

Specified by:

getRank in interface Ranking<S extends Solution<?>>

getAttributedId

public Object getAttributedId()

Specified by:

getAttributedId in interface Ranking<S extends Solution<?>>