Package org.opt4j.genotype
Provides the classes for basic Genotypes.
The basic Genotype classes are the following:
BooleanGenotype- a list of boolean (binary) valuesDoubleGenotype- a list of double (real) valuesIntegerGenotype- a list of integer valuesPermutationGenotype- a permutation of arbitrary objectsCompositeGenotype- a container for arbitrary genotype objects
Try to stick to the predefined genotype objects. Use the CompositeGenotype to assemble complex genotypes. If you define your own
genotype, keep in mind that you also have to define the corresponding
Operators.
The DoubleGenotype and IntegerGenotype both can be bounded by
an upper and lower bound for each value. The corresponding bounds classes are
the DoubleBounds and
IntegerBounds. These bounds are passed in the
constructor of the DoubleGenotype or IntegerGenotype,
respectively.
By default, the BooleanGenotype, the DoubleGenotype, and the IntegerGenotype are pure lists. This means, one has to identify elements by
their index. The classes BooleanMapGenotype,
DoubleMapGenotype, and
IntegerMapGenotype extend the basic genotype
classes by a map functionality. Therefore, a list of the key elements has to
be passed in the constructors. Internally, this list is used for a mapping of
key to indices. Therefore, this list must be in the same order with the same
elements for corresponding genotype instances.
A further extension of the IntegerGenotype is the
SelectGenotype and
SelectMapGenotype. Here, a specific set of
elements is defined such that for each index or key one element is chosen.
Internally, this is implemented as an IntegerGenotype such that the
elements are encoded as integer values.
The classes BooleanMapGenotype, DoubleMapGenotype, IntegerMapGenotype, SelectGenotype, and SelectMapGenotype
are extended from BooleanGenotype, DoubleGenotype, and IntegerGenotype, respectively. Therefore, the default operators (
org.opt4j.operator) for the simple Genotype classes are
applied on their MapGenotype and SelectGenotype classes.
Custom genotypes have to implement the
Genotype interface. If these classes are not
extended from existing Genotype classes, appropriate operators have
to be implemented (see org.opt4j.operator).
The initialization of the genotypes is done in the
Creator. Each genotype class has an appropriate
init method to simplify the initialization.
- See Also:
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ClassDescriptionThe
BooleanGenotypeconsists of Boolean values that can be used as aGenotype.CompositeGenotype<K,V extends Genotype> TheDoubleBoundsis an implementation of theBoundsfor theDoubleGenotypethat accepts arrays as well as lists for as bounds.TheDoubleGenotypeconsists of double values that can be used as aGenotype.TheIntegerBoundsis an implementation of theBoundsfor theIntegerGenotypethat accepts arrays as well as lists for as bounds.TheIntegerGenotypeis aGenotypethat consists of integer values.ListGenotype<E>MapGenotype<K,V> ThePermutationGenotypecan be used as aGenotype.TheSelectGenotypeselects for each index an element from the given list.SelectMapGenotype<K,V> TheSelectGenotypeselects for each key an element from a given list.