ec.breed
Class MultiBreedingPipeline
java.lang.Object
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+--ec.BreedingSource
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+--ec.BreedingPipeline
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+--ec.breed.MultiBreedingPipeline
- public class MultiBreedingPipeline
- extends BreedingPipeline
MultiBreedingPipeline is a BreedingPipeline stores some n child sources;
each time it must produce an individual or two,
it picks one of these sources at random and has it do the production.
Typical Number of Individuals Produced Per produce(...) call
If by base.generate-max is true, then always the maximum
number of the typical numbers of any child source. If false, then varies
depending on the child source picked.
Number of Sources
Dynamic. As many as the user specifies.
Parameters
base.generate-max
bool = true (default) or false |
(Each time produce(...) is called, should the MultiBreedingPipeline
force all its sources to produce exactly the same number of individuals as the largest
typical number of individuals produced by any source in the group?) |
Default Base
breed.multibreed
- See Also:
- Serialized Form
Method Summary |
Parameter |
defaultBase()
Returns the default base for this prototype. |
int |
numSources()
Returns the number of sources to this pipeline. |
void |
prepareToProduce(EvolutionState s,
int subpopulation,
int thread)
Called before produce(...), usually once a generation, or maybe only
once if you're doing steady-state evolution, to let the breeding source
"warm up" prior to producing. |
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 java.lang.Object |
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait |
P_GEN_MAX
public static final java.lang.String P_GEN_MAX
P_MULTIBREED
public static final java.lang.String P_MULTIBREED
maxGeneratable
public int maxGeneratable
generateMax
public boolean generateMax
MultiBreedingPipeline
public MultiBreedingPipeline()
defaultBase
public Parameter defaultBase()
- Description copied from interface: Prototype
- Returns the default base for this prototype.
This should generally be implemented by building off of the static base()
method on the DefaultsForm object for the prototype's package. This should
be callable during setup(...).
numSources
public int numSources()
- Description copied from class: BreedingPipeline
- Returns the number of sources to this pipeline. Called during
BreedingPipeline's setup. Be sure to return a value > 0, or
DYNAMIC_SOURCES which indicates that setup should check the parameter
file for the parameter "num-sources" to make its determination.
- Overrides:
- numSources in class BreedingPipeline
setup
public void setup(EvolutionState state,
Parameter base)
- Description copied from class: BreedingSource
- Sets up the BreedingPipeline. You can use state.output.error here
because the top-level caller promises to call exitIfErrors() after calling
setup. Note that probability might get modified again by
an external source if it doesn't normalize right.
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}.
- Overrides:
- setup in class BreedingPipeline
- Tags copied from class: BreedingSource
- See Also:
Prototype.setup(EvolutionState,Parameter)
prepareToProduce
public void prepareToProduce(EvolutionState s,
int subpopulation,
int thread)
- Description copied from class: BreedingSource
- Called before produce(...), usually once a generation, or maybe only
once if you're doing steady-state evolution, to let the breeding source
"warm up" prior to producing. Individuals should be produced from
old individuals in positions [start...start+length] in the subpopulation
only. May be called again to reset the BreedingSource for a whole
'nuther subpopulation.
- Overrides:
- prepareToProduce in class BreedingPipeline
typicalIndsProduced
public int typicalIndsProduced()
- Returns the max of typicalIndsProduced() of all its children
- Overrides:
- typicalIndsProduced in class BreedingSource
produce
public int produce(int min,
int max,
int start,
int subpopulation,
Individual[] inds,
EvolutionState state,
int thread)
throws java.lang.CloneNotSupportedException
- Description copied from class: BreedingSource
- 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. max must be >= min, and min must be >= 1. For example, crossover
might typically produce two individuals, tournament selection might typically
produce a single individual, etc.
- Overrides:
- produce in class BreedingSource