org.epiga.problem.intmax

Class IntmaxProblem

java.lang.Object

org.epiga.problem.Problem<IntegerRepresentation>

org.epiga.problem.intmax.IntmaxProblem

public class IntmaxProblem
extends Problem<IntegerRepresentation>

Example of continuous optimization.

Author:

Daniel H. Stolfi

Constructor Summary

Constructors

Constructor and Description
IntmaxProblem(int size, int min, int max) Constructor.

Method Summary

Modifier and Type	Method and Description
int	compare(double d1, double d2) Comparator which defines if it's a minimization or maximization problem.
void	crossover(IntegerRepresentation r1, IntegerRepresentation r2, java.util.BitSet n) Epigenetic crossover of two solutions.
IntegerRepresentation	generateSolution() Generate a new solution of the Problem.
void	methilate(IntegerRepresentation r, java.util.BitSet n, float eprobability) Epigenetic methilation of a solution.
void	save(IntegerRepresentation representation, java.lang.String file) Saves the problem representation to a file.
java.lang.String	toString() Returns the String representation of the Problem

Methods inherited from class org.epiga.problem.Problem

getEvaluations, getFitness, getSize, isBetter

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

IntmaxProblem

public IntmaxProblem(int size,
                     int min,
                     int max)
              throws EpigeneticException

Constructor.

Parameters:

size - the problem size

min - the minimum allowed integer

max - the maximum allowed integer

Throws:

EpigeneticException - if something goes wrong

Method Detail

toString

public java.lang.String toString()

Description copied from class: Problem

Returns the String representation of the Problem

Overrides:

toString in class Problem<IntegerRepresentation>

crossover

public void crossover(IntegerRepresentation r1,
                      IntegerRepresentation r2,
                      java.util.BitSet n)

Description copied from class: Problem

Epigenetic crossover of two solutions.

Specified by:

crossover in class Problem<IntegerRepresentation>

Parameters:

r1 - the representation of the first solution

r2 - the representation of the second solution

n - the nucleosome vector

methilate

public void methilate(IntegerRepresentation r,
                      java.util.BitSet n,
                      float eprobability)

Description copied from class: Problem

Epigenetic methilation of a solution.

Specified by:

methilate in class Problem<IntegerRepresentation>

Parameters:

r - the representation of the solution

n - the nucleosome vector

eprobability - the epigenetic probability

generateSolution

public IntegerRepresentation generateSolution()

Description copied from class: Problem

Generate a new solution of the Problem.

Specified by:

generateSolution in class Problem<IntegerRepresentation>

Returns:

the new solution generated.

compare

public int compare(double d1,
                   double d2)

Description copied from class: Problem

Comparator which defines if it's a minimization or maximization problem.

Specified by:

compare in class Problem<IntegerRepresentation>

Parameters:

d1 - the first fitness value

d2 - the second fitness value

Returns:

true or false depending on the use of minimizingComparator of maximizingComparator.

save

public void save(IntegerRepresentation representation,
                 java.lang.String file)
          throws java.io.FileNotFoundException

Description copied from class: Problem

Saves the problem representation to a file.

Specified by:

save in class Problem<IntegerRepresentation>

Parameters:

representation - the representation

file - the filename

Throws:

java.io.FileNotFoundException - If the file cannot be saved