jmetal.problems
Class mTSP

java.lang.Object
  jmetal.core.Problem
      jmetal.problems.mTSP

All Implemented Interfaces:

java.io.Serializable

public class mTSP
extends Problem

Class representing a multi-objective TSP (Traveling Salesman Problem) problem. This class is tested with two objectives and the KROA150 and KROB150 instances of TSPLIB

See Also:

Serialized Form

Field Summary

double[][]	costMatrix_
double[][]	distanceMatrix_
int	numberOfCities_

Fields inherited from class jmetal.core.Problem

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

Constructor Summary

mTSP(java.lang.String solutionType, java.lang.String file_distances, java.lang.String file_cost)
Creates a new mTSP problem instance.

Method Summary

void	evaluate(Solution solution) Evaluates a solution
double[][]	readProblem(java.lang.String file)

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

Field Detail

numberOfCities_

public int numberOfCities_

distanceMatrix_

public double[][] distanceMatrix_

costMatrix_

public double[][] costMatrix_

Constructor Detail

mTSP

public mTSP(java.lang.String solutionType,
            java.lang.String file_distances,
            java.lang.String file_cost)
     throws java.io.IOException

Creates a new mTSP problem instance. It accepts data files from TSPLIB

Throws:

java.io.IOException

Method Detail

evaluate

public void evaluate(Solution solution)

Evaluates a solution

Specified by:

evaluate in class Problem

Parameters:

solution - The solution to evaluate

readProblem

public double[][] readProblem(java.lang.String file)
                       throws java.io.IOException

Throws:

java.io.IOException