simuLCS
Class ZCSConfig

java.lang.Object
  simuLCS.ZCSConfig

public class ZCSConfig

extends java.lang.Object

Parameters used by our ZCS. A few lines of code (random number generator) below draw inspiration from the freely available XCSJava by Martin V. Butz

Author:

Benoit, Martin V. Butz

Field Summary

private static long	_A Constant for the random number generator (default = 16807).
private static long	_M Constant for the random number generator (modulus of PMMLCG = 2^31 -1).
private static long	_Q Constant for the random number generator (=_M/_A).
private static long	_R Constant for the random number generator (=_M mod _A).
static double	beta The portion of strength a classifier should give to the bucket
static char	dontCare The don't care symbol
static double	gamma The portion of the bucket redistributed
static int	maxPopSize Specifies the maximal number classifiers in the population.
static double	P_dontcare The probability of using a don't care symbol in a bit when covering.
static double	pM The probability of mutating one bit in a classifier generated by the GA.
static double	pX The probability of applying crossover in an offspring classifier.
private static long	seed The initialization of the pseudo random generator.
static double	strengthIni The initial strength value when generating a new classifier
static double	theta_GA The GA periodicity

Constructor Summary

ZCSConfig()

Method Summary

static double	drand() Returns a random number in between zero and one.
static void	setSeed(long s) Sets a random seed in order to randomize the pseudo random generator.

Methods inherited from class java.lang.Object

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

Field Detail

maxPopSize

public static final int maxPopSize

Specifies the maximal number classifiers in the population.

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Constant Field Values

beta

public static final double beta

The portion of strength a classifier should give to the bucket

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Constant Field Values

gamma

public static final double gamma

The portion of the bucket redistributed

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Constant Field Values

theta_GA

public static final double theta_GA

The GA periodicity

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Constant Field Values

pX

public static final double pX

The probability of applying crossover in an offspring classifier.

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Constant Field Values

pM

public static final double pM

The probability of mutating one bit in a classifier generated by the GA.

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Constant Field Values

P_dontcare

public static final double P_dontcare

The probability of using a don't care symbol in a bit when covering.

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Constant Field Values

strengthIni

public static final double strengthIni

The initial strength value when generating a new classifier

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Constant Field Values

dontCare

public static final char dontCare

The don't care symbol

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Constant Field Values

seed

private static long seed

The initialization of the pseudo random generator. Must be at lest one and smaller than _M.

_M

private static final long _M

Constant for the random number generator (modulus of PMMLCG = 2^31 -1).

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Constant Field Values

_A

private static final long _A

Constant for the random number generator (default = 16807).

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Constant Field Values

_Q

private static final long _Q

Constant for the random number generator (=_M/_A).

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Constant Field Values

_R

private static final long _R

Constant for the random number generator (=_M mod _A).

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Constant Field Values

Constructor Detail

ZCSConfig

public ZCSConfig()

Method Detail

setSeed

public static void setSeed(long s)

Sets a random seed in order to randomize the pseudo random generator.

drand

public static double drand()

Returns a random number in between zero and one.