Package evo.search

Class Evolution

java.lang.Object

evo.search.Evolution

All Implemented Interfaces:

Serializable, Cloneable, Runnable

public class Evolution
extends Object
implements Runnable, Serializable, Cloneable

This class holds a configuration and executes a corresponding evolution.

Author:

jotoh

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Evolution.EvolutionBuilder
static class	Evolution.Fitness	Fitness method enum.

Method Summary

Modifier and Type	Method	Description
static Evolution.EvolutionBuilder	builder()
Evolution	clone()	Clones the evolution shallow.
double	evalFitness(List<DiscreteGene> chromosome)	Evaluate fitness method.
double	fitnessMulti(List<DiscreteGene> chromosome)	Compute the fitness of a DiscreteGene chromosome based on all treasures.
double	fitnessSingular(List<DiscreteGene> chromosome)	Compute the fitness of a DiscreteGene chromosome based on the single first treasure DiscreteGene.
Configuration	getConfiguration()	Configuration to use during the evolution.
List<io.jenetics.engine.EvolutionResult<DiscreteGene,Double>>	getHistory()	History of individuals with the best phenotype in each generation.
void	run()	Execute an evolution Works with the Configuration held by this instance.
void	setAborted(boolean aborted)	Evolution abort flag.
void	setConfiguration(Configuration configuration)	Configuration to use during the evolution.
void	setHistory(List<io.jenetics.engine.EvolutionResult<DiscreteGene,Double>> history)	History of individuals with the best phenotype in each generation.

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

run

public void run()

Execute an evolution Works with the Configuration held by this instance. Clears out the history and the last result.

Stores the history of the generations in history.

Specified by:

run in interface Runnable

fitnessSingular

public double fitnessSingular(List<DiscreteGene> chromosome)

Compute the fitness of a DiscreteGene chromosome based on the single first treasure DiscreteGene. This is the trace length of the individual visiting it's DiscreteGenes until the treasure is found.

Parameters:

chromosome - chromosome to evaluate

Returns:

chromosome fitness based on single treasure

See Also:

AnalysisUtils.traceLength(List, DiscreteGene)

fitnessMulti

public double fitnessMulti(List<DiscreteGene> chromosome)

Compute the fitness of a DiscreteGene chromosome based on all treasures.

The fitness of the chromosome is the sum of all singular fitnesses divided by the amount of treasures.

Parameters:

chromosome - chromosome to evaluate

Returns:

chromosome fitness based on multiple treasures

See Also:

AnalysisUtils.traceLength(List, DiscreteGene)

evalFitness

public double evalFitness(List<DiscreteGene> chromosome)

Evaluate fitness method.

Parameters:

chromosome - chromosome to evaluate

Returns:

evaluated fitness

clone

public Evolution clone()

Clones the evolution shallow.

Overrides:

clone in class Object

Returns:

shallow evolution clone

builder

public static Evolution.EvolutionBuilder builder()

getConfiguration

public Configuration getConfiguration()

Configuration to use during the evolution.

setConfiguration

public void setConfiguration(Configuration configuration)

Configuration to use during the evolution.

getHistory

public List<io.jenetics.engine.EvolutionResult<DiscreteGene,Double>> getHistory()

History of individuals with the best phenotype in each generation.

setHistory

public void setHistory(List<io.jenetics.engine.EvolutionResult<DiscreteGene,Double>> history)

History of individuals with the best phenotype in each generation.

setAborted

public void setAborted(boolean aborted)

Evolution abort flag.