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java.lang.Objectec.BreedingSource
ec.BreedingPipeline
ec.breed.ForceBreedingPipeline
public class ForceBreedingPipeline
ForceBreedingPipeline has one source. To fill its quo for produce(...), ForceBreedingPipeline repeatedly forces its source to produce exactly numInds individuals at a time, except possibly the last time, where the number of individuals its source produces may be as low as 1. This is useful for forcing Crossover to produce only one individual, or mutation to produce 2 individuals always, etc.
Typical Number of Individuals Produced Per produce(...) call
Determined by base.num-inds
Number of Sources
1
Parameters
base.num-inds int >= 1 |
(The number of individuals this breeding pipeline will force its source to produce each tim in order to fill the quo for produce(...).) |
Default Base
breed.force
Field Summary | |
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int |
numInds
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static java.lang.String |
P_FORCE
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static java.lang.String |
P_NUMINDS
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Fields inherited from class ec.BreedingPipeline |
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DYNAMIC_SOURCES, mybase, P_NUMSOURCES, P_SOURCE, sources, V_SAME |
Fields inherited from class ec.BreedingSource |
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CHECKBOUNDARY, DEFAULT_PRODUCED, NO_PROBABILITY, P_PROB, probability, UNUSED |
Constructor Summary | |
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ForceBreedingPipeline()
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Method Summary | |
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Parameter |
defaultBase()
Returns the default base for this prototype. |
int |
numSources()
Returns the number of sources to this pipeline. |
int |
produce(int min,
int max,
int start,
int subpopulation,
Individual[] inds,
EvolutionState state,
int thread)
Produces n individuals from the given subpopulation and puts them into inds[start...start+n-1], where n = Min(Max(q,min),max), where q is the "typical" number of individuals the BreedingSource produces in one shot, and returns n. |
void |
setup(EvolutionState state,
Parameter base)
Sets up the BreedingPipeline. |
int |
typicalIndsProduced()
Returns the max of typicalIndsProduced() of all its children |
Methods inherited from class ec.BreedingPipeline |
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clone, finishProducing, individualReplaced, maxChildProduction, minChildProduction, preparePipeline, prepareToProduce, produces, sourcesAreProperForm |
Methods inherited from class ec.BreedingSource |
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getProbability, pickRandom, setProbability, setupProbabilities |
Methods inherited from class java.lang.Object |
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equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final java.lang.String P_NUMINDS
public static final java.lang.String P_FORCE
public int numInds
Constructor Detail |
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public ForceBreedingPipeline()
Method Detail |
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public Parameter defaultBase()
Prototype
public int numSources()
BreedingPipeline
numSources
in class BreedingPipeline
public void setup(EvolutionState state, Parameter base)
BreedingSource
The most common modification is to normalize it with some other set of probabilities, then set all of them up in increasing summation; this allows the use of the fast static BreedingSource-picking utility method, BreedingSource.pickRandom(...). In order to use this method, for example, if four breeding source probabilities are {0.3, 0.2, 0.1, 0.4}, then they should get normalized and summed by the outside owners as: {0.3, 0.5, 0.6, 1.0}.
setup
in interface Prototype
setup
in interface Setup
setup
in class BreedingPipeline
Prototype.setup(EvolutionState,Parameter)
public int typicalIndsProduced()
typicalIndsProduced
in class BreedingPipeline
public int produce(int min, int max, int start, int subpopulation, Individual[] inds, EvolutionState state, int thread)
BreedingSource
produce
in class BreedingSource
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