core

Class AbstractMultiProblem

java.lang.Object

core.AbstractComponent

core.AbstractProblem

core.AbstractMultiProblem

Direct Known Subclasses:

SimpleSoccer, ttt2

public abstract class AbstractMultiProblem
extends AbstractProblem

Provides a general interface to formulate own problems that evaluates multiple representations at a time.

In order to provide a visualized evaluation the method AbstractSingleProblem.replayWithVisualization(core.AbstractRepresentation) must be overwritten.

To support requirement changes based on different parameters override the following method:

-AbstractProblem.adjustRequirements(java.util.Hashtable, java.util.Hashtable)

Author:

Istvan Fehervari

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	AbstractMultiProblem.RepresentationWithScore A structure that contains a representation along with its score.

Constructor Summary

Constructors

Constructor and Description
AbstractMultiProblem()

Method Summary

Methods

Modifier and Type	Method and Description
abstract java.util.List<AbstractMultiProblem.RepresentationWithScore>	evaluateFitness(AbstractRepresentation[] candidates) Returns the fitness of the given representations.
void	replayWithVisualization(AbstractRepresentation[] candidates) This function is called when the user request a visual replay from the problem.

Methods inherited from class core.AbstractProblem

adjustRequirements, getRandom, setRandom

Methods inherited from class core.AbstractComponent

getProperties, getPropertyValue, getTypeOfProperty, getXMLData, setProperties, setXMLData

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractMultiProblem

public AbstractMultiProblem()

Method Detail

evaluateFitness

public abstract java.util.List<AbstractMultiProblem.RepresentationWithScore> evaluateFitness(AbstractRepresentation[] candidates)

Returns the fitness of the given representations. The returned list contains the representations with their achieved scores. A higher score usually means a better ranking.
However, the order of the candidates matters the most for ranking, the scores are secondary.

Parameters:

candidates - Array of candidates to be evaluated.

Returns:

a list of evaluated candidates with decreasing fitness. That means better candidates have lower index.

replayWithVisualization

public void replayWithVisualization(AbstractRepresentation[] candidates)

This function is called when the user request a visual replay from the problem. A total re-evaluation is not needed, only to provide a visual mean for the user to grasp the performance of the indicated candidate solutions.

It is recommended to use advanced threading for display like SwingWorker.

Parameters:

candidates - Array of candidates whose replay has been requested.