ec.app.coevolve2
Class CoevolutionaryRosenbrock

java.lang.Object
  ec.Problem
      ec.app.coevolve2.CoevolutionaryRosenbrock

All Implemented Interfaces:

GroupedProblemForm, Prototype, Setup, java.io.Serializable, java.lang.Cloneable

public class CoevolutionaryRosenbrock
extends Problem
implements GroupedProblemForm

See Also:

Serialized Form

Field Summary

Fields inherited from class ec.Problem

P_PROBLEM

Constructor Summary

CoevolutionaryRosenbrock()

Method Summary

void	evaluate(EvolutionState state, Individual[] ind, boolean[] updateFitness, boolean countVictoriesOnly, int threadnum)
void	evaluate(EvolutionState state, Individual[] ind, boolean[] updateFitness, boolean countVictoriesOnly, int[] subpops, int threadnum) Evaluates the individuals found in ind together.
void	postprocessPopulation(EvolutionState state, Population pop) Finish processing the population (such as fitness information) after evaluation.
void	preprocessPopulation(EvolutionState state, Population pop) Set up the population pop (such as fitness information) prior to evaluation.

Methods inherited from class ec.Problem

canEvaluate, clone, closeContacts, defaultBase, describe, describe, evaluate, evaluate, finishEvaluating, getBase, initializeContacts, prepareToEvaluate, reinitializeContacts, setBase, setup

Methods inherited from class java.lang.Object

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

Constructor Detail

CoevolutionaryRosenbrock

public CoevolutionaryRosenbrock()

Method Detail

preprocessPopulation

public void preprocessPopulation(EvolutionState state,
                                 Population pop)

Description copied from interface: GroupedProblemForm

Set up the population pop (such as fitness information) prior to evaluation. Although this method is not static, you should not use it to write to any instance variables in the GroupedProblem instance; this is because it's possible that the instance used is in fact the prototype, and you will have no guarantees that your instance variables will remain valid during the evaluate(...) process. Do not assume that pop will be the same as state.pop -- it may not. state is only provided to give you access to EvolutionState features.

Specified by:

preprocessPopulation in interface GroupedProblemForm

postprocessPopulation

public void postprocessPopulation(EvolutionState state,
                                  Population pop)

Description copied from interface: GroupedProblemForm

Finish processing the population (such as fitness information) after evaluation. Although this method is not static, you should not use it to write to any instance variables in the GroupedProblem instance; this is because it's possible that the instance used is in fact the prototype, and you will have no guarantees that your instance variables will remain valid during the evaluate(...) process. Do not assume that pop will be the same as state.pop -- it may not. state is only provided to give you access to EvolutionState features.

Specified by:

postprocessPopulation in interface GroupedProblemForm

evaluate

public void evaluate(EvolutionState state,
                     Individual[] ind,
                     boolean[] updateFitness,
                     boolean countVictoriesOnly,
                     int threadnum)

Specified by:

evaluate in interface GroupedProblemForm

evaluate

public void evaluate(EvolutionState state,
                     Individual[] ind,
                     boolean[] updateFitness,
                     boolean countVictoriesOnly,
                     int[] subpops,
                     int threadnum)

Description copied from interface: GroupedProblemForm

Evaluates the individuals found in ind together. If updateFitness[i] is true, then you should use this evaluation to update the fitness of the individual in ind[i]. Individuals which are updated should have their fitnesses modified so that immediately after evaluation (and prior to postprocessPopulation(...) being called) individuals' fitnesses can be checked to see which is better than which. Do not assume that the individuals in ind will actually be in state.pop (they may not -- this method may be called at the end of a run to determine the best individual of the run in some kind of contest).

If countVictoriesOnly is true, you should update fitnesses such that if two individuals' fitnesses are compared, the one which has won the most times has a superior fitness. This will be used in single elimination tournament style evaluators.

Specified by:

evaluate in interface GroupedProblemForm