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java.lang.ObjectOperator.Operations.SelectionOperation
Operator.Operations.TournamentSelect
public class TournamentSelect
The operation of this class is tournament selection. The individual with the best fitness from a randomly selected tournament of size tournamentSize is cloned to the selected population.
Field Summary | |
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protected double |
pressureModifier
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protected RandomNumberGenerator |
rng
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protected java.util.ArrayList<Fitness> |
tour
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protected int |
tournamentSize
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Fields inherited from class Operator.Operations.SelectionOperation |
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selectedPopulation, size |
Constructor Summary | |
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TournamentSelect()
New instantion |
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TournamentSelect(int size,
int tourSize,
RandomNumberGenerator rand)
Creates a new instance of TournamentSelect |
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TournamentSelect(RandomNumberGenerator rand,
java.util.Properties p)
Creates a new instance of TournamentSelect |
Method Summary | |
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void |
doOperation(Individual operand)
Performs the operation on an operand |
void |
doOperation(java.util.List<Individual> operands)
Individuals from operands will be added to the selected population if the win their tournament. |
RandomNumberGenerator |
getRNG()
Get the number generator |
void |
getTour(java.util.List<Individual> operands)
Adds individual to the tournament by randomly selecting from the operands untill the tounramentSize is reached. |
void |
selectFromTour()
Select a winner from the tournament and add to the selected population. |
void |
setProperties(java.util.Properties p)
Set properties |
void |
setRNG(RandomNumberGenerator m)
Set the number generator |
Methods inherited from class Operator.Operations.SelectionOperation |
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getSelectedPopulation, getSize |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected RandomNumberGenerator rng
protected int tournamentSize
protected double pressureModifier
protected java.util.ArrayList<Fitness> tour
Constructor Detail |
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public TournamentSelect(int size, int tourSize, RandomNumberGenerator rand)
size
- size of selected populationtourSize
- size of tournamentrand
- random number generatorpublic TournamentSelect(RandomNumberGenerator rand, java.util.Properties p)
rand
- random number generatorp
- propertiespublic TournamentSelect()
Method Detail |
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public void setProperties(java.util.Properties p)
SelectionOperation
setProperties
in interface ParameterI
setProperties
in class SelectionOperation
p
- object containing propertiespublic void doOperation(Individual operand)
Operation
doOperation
in interface Operation
doOperation
in class SelectionOperation
operand
- operand to perform operation onpublic void doOperation(java.util.List<Individual> operands)
doOperation
in interface Operation
doOperation
in class SelectionOperation
operands
- Individuals to be selected frompublic void getTour(java.util.List<Individual> operands)
operands
- Individuals that can be selected to the tournamentpublic void selectFromTour()
public void setRNG(RandomNumberGenerator m)
Stochastic
setRNG
in interface Stochastic
m
- number generatorpublic RandomNumberGenerator getRNG()
Stochastic
getRNG
in interface Stochastic
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