de.kumpe.hadooptimizer
Interface EsWrappableMutator

All Known Implementing Classes:

GaussianMutator, GaussionMutatorBase, IdentityMutator

public interface EsWrappableMutator

Makes a Mutator wrappable by the EsMutatorWrapper.

In most cases the mutator's individual's type will be double[] and its Mutator.mutate(Object) will just delegate to its mutate(double[], double).

Author:

Christian Kumpe

Method Summary

double	getMinIncrement() Returns the minimal allowed increment.
double[]	mutate(double[] individual, double increment) Mutates the given individual with the specified increment.

Method Detail

mutate

double[] mutate(double[] individual,
                double increment)

Mutates the given individual with the specified increment.

Parameters:

individual - the individual to mutate

increment - the increment for the mutation (mainly the standard deviation of a normal distributed random number)

Returns:

the mutant

getMinIncrement

double getMinIncrement()

Returns the minimal allowed increment. In the evolution strategies automatic increment adaption the ist the increment's lower bound.

Returns:

the minimal allowed increment