net.sf.genethello.ga
Class GFitnessFunction

java.lang.Object
  org.jgap.BulkFitnessFunction
      net.sf.genethello.ga.GFitnessFunction

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, org.jgap.util.ICloneable

public class GFitnessFunction
extends org.jgap.BulkFitnessFunction

Fitness function for evaluating othello individuals in genetic algorithm.

Author:

Bowo

See Also:

Serialized Form

Field Summary

static int	CHROMOSOME Order of field 'chromosome' in insert/update population table.
static int	CURRENT Order of field 'current' in insert/update population table.
static int	DRAW Order of field 'draw' in insert/update population table.
static int	ELO Order of field 'elo' in insert/update population table.
static int	GENERATION Order of field 'generation' in insert/update population table.
static int	LOSE Order of field 'lose' in insert/update population table.
static int	WIN Order of field 'win' in insert/update population table.

Constructor Summary

GFitnessFunction(ChromosomeCreator chromosomeCreator, boolean verbose, boolean nosleep, boolean network)
Creates new instance of fitness function.

Method Summary

void	evaluate(org.jgap.Population arg0) Performs a full cycle of othello tournament for all individuals versus all other individuals, twice for each couple playing black and white alternately, and sets the fitness value.
void	setGeneration(int gen) Sets current generation.
protected void	tournament(org.jgap.IChromosome a_ic, org.jgap.IChromosome b_ic, java.sql.Connection connection) Performs a match between two othello individuals, then updates the ELO rating.

Methods inherited from class org.jgap.BulkFitnessFunction

clone

Methods inherited from class java.lang.Object

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

Field Detail

WIN

public static final int WIN

Order of field 'win' in insert/update population table.

See Also:

Constant Field Values

LOSE

public static final int LOSE

Order of field 'lose' in insert/update population table.

See Also:

Constant Field Values

DRAW

public static final int DRAW

Order of field 'draw' in insert/update population table.

See Also:

Constant Field Values

ELO

public static final int ELO

Order of field 'elo' in insert/update population table.

See Also:

Constant Field Values

GENERATION

public static final int GENERATION

Order of field 'generation' in insert/update population table.

See Also:

Constant Field Values

CHROMOSOME

public static final int CHROMOSOME

Order of field 'chromosome' in insert/update population table.

See Also:

Constant Field Values

CURRENT

public static final int CURRENT

Order of field 'current' in insert/update population table.

See Also:

Constant Field Values

Constructor Detail

GFitnessFunction

public GFitnessFunction(ChromosomeCreator chromosomeCreator,
                        boolean verbose,
                        boolean nosleep,
                        boolean network)

Creates new instance of fitness function.

Parameters:

chromosomeCreator - chromosome creator

verbose - print verbose information or not

nosleep - use full CPU power or not

network - use network or not

Method Detail

setGeneration

public void setGeneration(int gen)

Sets current generation.

Parameters:

gen - generation

tournament

protected void tournament(org.jgap.IChromosome a_ic,
                          org.jgap.IChromosome b_ic,
                          java.sql.Connection connection)

Performs a match between two othello individuals, then updates the ELO rating.

Parameters:

a_ic - chromosome for black player

b_ic - chromosome for white player

connection - database connection

evaluate

public void evaluate(org.jgap.Population arg0)

Performs a full cycle of othello tournament for all individuals versus all other individuals, twice for each couple playing black and white alternately, and sets the fitness value.

Specified by:

evaluate in class org.jgap.BulkFitnessFunction

Parameters:

arg0 - population of othello individuals