jmetal.problems.WFG
Class WFG2

java.lang.Object
  jmetal.core.Problem
      jmetal.problems.WFG.WFG
          jmetal.problems.WFG.WFG2

All Implemented Interfaces:

java.io.Serializable

public class WFG2
extends WFG

This class implements the WFG2 problem Reference: Simon Huband, Luigi Barone, Lyndon While, Phil Hingston A Scalable Multi-objective Test Problem Toolkit. Evolutionary Multi-Criterion Optimization: Third International Conference, EMO 2005. Proceedings, volume 3410 of Lecture Notes in Computer Science

See Also:

Serialized Form

Field Summary

Fields inherited from class jmetal.problems.WFG.WFG

A_, D_, k_, l_, M_, random, S_

Fields inherited from class jmetal.core.Problem

length_, lowerLimit_, numberOfConstraints_, numberOfObjectives_, numberOfVariables_, problemName_, solutionType_, upperLimit_

Constructor Summary

WFG2(java.lang.String solutionType)
Creates a default WFG2 instance with 2 position-related parameters 4 distance-related parameters and 2 objectives

WFG2(java.lang.String solutionType, java.lang.Integer k, java.lang.Integer l, java.lang.Integer M)
Creates a WFG2 problem instance

Method Summary

float[]	evaluate(float[] z) Evaluates a solution
void	evaluate(Solution solution) Evaluates a solution
float[]	t1(float[] z, int k) WFG2 t1 transformation
float[]	t2(float[] z, int k) WFG2 t2 transformation
float[]	t3(float[] z, int k, int M) WFG2 t3 transformation

Methods inherited from class jmetal.problems.WFG.WFG

calculate_x, correct_to_01, normalise, subVector

Methods inherited from class jmetal.core.Problem

evaluateConstraints, getLength, getLowerLimit, getName, getNumberOfBits, getNumberOfConstraints, getNumberOfObjectives, getNumberOfVariables, getPrecision, getPrecision, getSolutionType, getUpperLimit, setNumberOfVariables, setPrecision, setSolutionType

Methods inherited from class java.lang.Object

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

Constructor Detail

WFG2

public WFG2(java.lang.String solutionType)
     throws java.lang.ClassNotFoundException

Creates a default WFG2 instance with 2 position-related parameters 4 distance-related parameters and 2 objectives

Parameters:

solutionType - The solution type must "Real" or "BinaryReal".

Throws:

java.lang.ClassNotFoundException

WFG2

public WFG2(java.lang.String solutionType,
            java.lang.Integer k,
            java.lang.Integer l,
            java.lang.Integer M)
     throws java.lang.ClassNotFoundException

Creates a WFG2 problem instance

Parameters:

k - Number of position parameters

l - Number of distance parameters

M - Number of objective functions

solutionType - The solution type must "Real" or "BinaryReal".

Throws:

java.lang.ClassNotFoundException

Method Detail

evaluate

public float[] evaluate(float[] z)

Evaluates a solution

Specified by:

evaluate in class WFG

Parameters:

z - The solution to evaluate

Returns:

double [] with the evaluation results

t1

public float[] t1(float[] z,
                  int k)

WFG2 t1 transformation

t2

public float[] t2(float[] z,
                  int k)

WFG2 t2 transformation

t3

public float[] t3(float[] z,
                  int k,
                  int M)

WFG2 t3 transformation

evaluate

public final void evaluate(Solution solution)
                    throws JMException

Evaluates a solution

Specified by:

evaluate in class Problem

Parameters:

solution - The solution to evaluate

Throws:

JMException