ec.app.coevolve1
Class CompetitiveMaxOne

java.lang.Object
  extended by ec.Problem
      extended by ec.app.coevolve1.CompetitiveMaxOne
All Implemented Interfaces:
GroupedProblemForm, Prototype, Setup, java.io.Serializable, java.lang.Cloneable

public class CompetitiveMaxOne
extends Problem
implements GroupedProblemForm

See Also:
Serialized Form

Field Summary
 
Fields inherited from class ec.Problem
P_PROBLEM
 
Constructor Summary
CompetitiveMaxOne()
           
 
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

CompetitiveMaxOne

public CompetitiveMaxOne()
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