ec.app.bbob

Class BBOBenchmarks

java.lang.Object

ec.Problem

ec.app.bbob.BBOBenchmarks

All Implemented Interfaces:

Prototype, Setup, SimpleProblemForm, Serializable, Cloneable

public class BBOBenchmarks
extends Problem
implements SimpleProblemForm

The Black Box Optimization workshop (BBOB) has an annual competition for doing real-valued parameter optimization. The examples shown here are more or less faithful reproductions of the BBOB 2010 C code, only using Mersenne Twister instead of BBOB's random number generator. Unfortunately, the original BBOB code has various magic numbers, unexplained variables, and unfortunate algorithmic decisions. We've reproduced them exactly rather than attempt to convert to a standard ECJ template, and simply apologize beforehand.

Parameters

base.type String = none (default) , sphere, ellipsoidal, rastrigin, buch-rastrigin, linear-slope, attractive-sector, step-elipsoidal, rosenbrock, rosenbrock-rotated, ellipsoidal-2, discus, bent-cigar, sharp-ridge, different-powers, rastrigin-2, weierstrass, schaffers-f7, schaffers-f7-2, griewak-rosenbrock, schwefel, gallagher-gaussian-101me, gallagher-gaussian-21hi, katsuura, lunacek	(The particular function)
base.noise String = none (default) , gauss, uniform, cauchy, gauss-moderate, uniform-moderate, cauchy-moderate	(what type of noise (if any) to add to the function value)
base.reevaluate-noisy-problems boolean = true(default)	(whether to reevaluate noisy problems)

Version:

1.0

Author:

Faisal Abidi

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
(package private) double[]	aK
(package private) double[][]	arrScales
(package private) double[][]	arrScales21
(package private) double[][]	arrScales22
static int	ATTRACTIVE_SECTOR
static int	BENT_CIGAR
(package private) double[]	bK
static int	BUCHE_RASTRIGIN
static int	CAUCHY
static int	CAUCHY_MODERATE
static int	DIFFERENT_POWERS
static int	DISCUS
static int	ELLIPSOIDAL
static int	ELLIPSOIDAL_2
(package private) double	f0
(package private) double	fAdd_Init
(package private) double	fOpt
static int	GALLAGHER_GAUSSIAN_101ME
static int	GALLAGHER_GAUSSIAN_21HI
static int	GAUSSIAN
static int	GAUSSIAN_MODERATE
static int	GRIEWANK_ROSENBROCK
static int	KATSUURA
static int	LINEAR_SLOPE
(package private) double[][]	linearTF
static int	LUNACEK
static int	NHIGHPEAKS21
static int	NHIGHPEAKS22
int	noise
String[]	noiseTypes
static int	NONE
static String	P_GENOME_SIZE
static String	P_NOISE
static String	P_REEVALUATE_NOISY_PROBLEMS
static String	P_WHICH_PROBLEM
(package private) double[]	peaks21
(package private) double[]	peaks22
(package private) double[]	peakvalues
int	problemType
String[]	problemTypes
static int	RASTRIGIN
static int	RASTRIGIN_2
boolean	reevaluateNoisyProblems
static int	ROSENBROCK
static int	ROSENBROCK_ROTATED
(package private) double[][]	rot2
(package private) double[][]	rotation
(package private) int[]	rperm
(package private) int[]	rperm21
(package private) int[]	rperm22
(package private) double	scales
static int	SCHAFFERS_F7
static int	SCHAFFERS_F7_2
static int	SCHWEFEL
static int	SHARP_RIDGE
static int	SPHERE
static int	STEP_ELLIPSOIDAL
static double	TOL
static int	UNIFORM
static int	UNIFORM_MODERATE
static int	WEIERSTRASS
(package private) double[][]	xLocal
(package private) double[][]	xLocal21
(package private) double[][]	xLocal22
(package private) double[]	xOpt

Fields inherited from class ec.Problem

P_PROBLEM

Constructor Summary

Constructors

Constructor and Description
BBOBenchmarks()

Method Summary

Methods

Modifier and Type	Method and Description
(package private) double	computeFopt(MersenneTwisterFast random)
(package private) void	computeRotation(double[][] b, MersenneTwisterFast random, int genomeSize)
(package private) void	computeXopt(double[] xOpt, MersenneTwisterFast random)
void	evaluate(EvolutionState state, Individual ind, int subpopulation, int threadnum) Evaluates the individual in ind, if necessary (perhaps not evaluating them if their evaluated flags are true), and sets their fitness appropriately.
(package private) double	fCauchy(double fTrue, double alpha, double p, MersenneTwisterFast random)
(package private) double	fGauss(double fTrue, double beta, MersenneTwisterFast random)
(package private) double	fUniform(double fTrue, double alpha, double beta, MersenneTwisterFast random)
(package private) void	gauss(double[] g, MersenneTwisterFast random)
(package private) void	gauss(double[] g, MersenneTwisterFast random, int n)
(package private) void	monotoneTFosc(double[] f)
(package private) double	nextDoubleClosedInterval(MersenneTwisterFast random)
(package private) double[][]	reshape(double[][] b, double[] vector, int m, int n)
void	setup(EvolutionState state, Parameter base) Sets up the object by reading it from the parameters stored in state, built off of the parameter base base.

Methods inherited from class ec.Problem

canEvaluate, clone, closeContacts, defaultBase, describe, describe, finishEvaluating, initializeContacts, prepareToEvaluate, reinitializeContacts

Methods inherited from class java.lang.Object

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

Methods inherited from interface ec.simple.SimpleProblemForm

describe

Field Detail

P_GENOME_SIZE

public static final String P_GENOME_SIZE

See Also:

Constant Field Values

P_WHICH_PROBLEM

public static final String P_WHICH_PROBLEM

See Also:

Constant Field Values

P_NOISE

public static final String P_NOISE

See Also:

Constant Field Values

P_REEVALUATE_NOISY_PROBLEMS

public static final String P_REEVALUATE_NOISY_PROBLEMS

See Also:

Constant Field Values

problemTypes

public final String[] problemTypes

SPHERE

public static final int SPHERE

See Also:

Constant Field Values

ELLIPSOIDAL

public static final int ELLIPSOIDAL

See Also:

Constant Field Values

RASTRIGIN

public static final int RASTRIGIN

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Constant Field Values

BUCHE_RASTRIGIN

public static final int BUCHE_RASTRIGIN

See Also:

Constant Field Values

LINEAR_SLOPE

public static final int LINEAR_SLOPE

See Also:

Constant Field Values

ATTRACTIVE_SECTOR

public static final int ATTRACTIVE_SECTOR

See Also:

Constant Field Values

STEP_ELLIPSOIDAL

public static final int STEP_ELLIPSOIDAL

See Also:

Constant Field Values

ROSENBROCK

public static final int ROSENBROCK

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Constant Field Values

ROSENBROCK_ROTATED

public static final int ROSENBROCK_ROTATED

See Also:

Constant Field Values

ELLIPSOIDAL_2

public static final int ELLIPSOIDAL_2

See Also:

Constant Field Values

DISCUS

public static final int DISCUS

See Also:

Constant Field Values

BENT_CIGAR

public static final int BENT_CIGAR

See Also:

Constant Field Values

SHARP_RIDGE

public static final int SHARP_RIDGE

See Also:

Constant Field Values

DIFFERENT_POWERS

public static final int DIFFERENT_POWERS

See Also:

Constant Field Values

RASTRIGIN_2

public static final int RASTRIGIN_2

See Also:

Constant Field Values

WEIERSTRASS

public static final int WEIERSTRASS

See Also:

Constant Field Values

SCHAFFERS_F7

public static final int SCHAFFERS_F7

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Constant Field Values

SCHAFFERS_F7_2

public static final int SCHAFFERS_F7_2

See Also:

Constant Field Values

GRIEWANK_ROSENBROCK

public static final int GRIEWANK_ROSENBROCK

See Also:

Constant Field Values

SCHWEFEL

public static final int SCHWEFEL

See Also:

Constant Field Values

GALLAGHER_GAUSSIAN_101ME

public static final int GALLAGHER_GAUSSIAN_101ME

See Also:

Constant Field Values

GALLAGHER_GAUSSIAN_21HI

public static final int GALLAGHER_GAUSSIAN_21HI

See Also:

Constant Field Values

KATSUURA

public static final int KATSUURA

See Also:

Constant Field Values

LUNACEK

public static final int LUNACEK

See Also:

Constant Field Values

noiseTypes

public final String[] noiseTypes

NONE

public static final int NONE

See Also:

Constant Field Values

GAUSSIAN

public static final int GAUSSIAN

See Also:

Constant Field Values

UNIFORM

public static final int UNIFORM

See Also:

Constant Field Values

CAUCHY

public static final int CAUCHY

See Also:

Constant Field Values

GAUSSIAN_MODERATE

public static final int GAUSSIAN_MODERATE

See Also:

Constant Field Values

UNIFORM_MODERATE

public static final int UNIFORM_MODERATE

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Constant Field Values

CAUCHY_MODERATE

public static final int CAUCHY_MODERATE

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Constant Field Values

problemType

public int problemType

noise

public int noise

reevaluateNoisyProblems

public boolean reevaluateNoisyProblems

NHIGHPEAKS21

public static final int NHIGHPEAKS21

See Also:

Constant Field Values

NHIGHPEAKS22

public static final int NHIGHPEAKS22

See Also:

Constant Field Values

fOpt

double fOpt

xOpt

double[] xOpt

fAdd_Init

double fAdd_Init

f0

double f0

rotation

double[][] rotation

rot2

double[][] rot2

linearTF

double[][] linearTF

peaks21

double[] peaks21

peaks22

double[] peaks22

rperm

int[] rperm

rperm21

int[] rperm21

rperm22

int[] rperm22

xLocal

double[][] xLocal

xLocal21

double[][] xLocal21

xLocal22

double[][] xLocal22

arrScales

double[][] arrScales

arrScales21

double[][] arrScales21

arrScales22

double[][] arrScales22

aK

double[] aK

bK

double[] bK

peakvalues

double[] peakvalues

scales

double scales

TOL

public static final double TOL

See Also:

Constant Field Values

Constructor Detail

BBOBenchmarks

public BBOBenchmarks()

Method Detail

setup

public void setup(EvolutionState state,
         Parameter base)

Description copied from interface: Prototype

Sets up the object by reading it from the parameters stored in state, built off of the parameter base base. If an ancestor implements this method, be sure to call super.setup(state,base); before you do anything else.

For prototypes, setup(...) is typically called once for the prototype instance; cloned instances do not receive the setup(...) call. setup(...) may be called more than once; the only guarantee is that it will get called at least once on an instance or some "parent" object from which it was ultimately cloned.

Specified by:

setup in interface Prototype

Specified by:

setup in interface Setup

Overrides:

setup in class Problem

evaluate

public void evaluate(EvolutionState state,
            Individual ind,
            int subpopulation,
            int threadnum)

Description copied from interface: SimpleProblemForm

Evaluates the individual in ind, if necessary (perhaps not evaluating them if their evaluated flags are true), and sets their fitness appropriately.

Specified by:

evaluate in interface SimpleProblemForm

gauss

void gauss(double[] g,
         MersenneTwisterFast random)

gauss

void gauss(double[] g,
         MersenneTwisterFast random,
         int n)

computeXopt

void computeXopt(double[] xOpt,
               MersenneTwisterFast random)

monotoneTFosc

void monotoneTFosc(double[] f)

reshape

double[][] reshape(double[][] b,
                 double[] vector,
                 int m,
                 int n)

computeRotation

void computeRotation(double[][] b,
                   MersenneTwisterFast random,
                   int genomeSize)

fGauss

double fGauss(double fTrue,
            double beta,
            MersenneTwisterFast random)

fUniform

double fUniform(double fTrue,
              double alpha,
              double beta,
              MersenneTwisterFast random)

fCauchy

double fCauchy(double fTrue,
             double alpha,
             double p,
             MersenneTwisterFast random)

computeFopt

double computeFopt(MersenneTwisterFast random)

nextDoubleClosedInterval

double nextDoubleClosedInterval(MersenneTwisterFast random)