Benchmarks (ECJ 22 API)

java.lang.Object
- ec.Problem
- - ec.gp.GPProblem
  - - ec.app.regression.Benchmarks

All Implemented Interfaces:

Prototype, Setup, SimpleProblemForm, Serializable, Cloneable
```
public class Benchmarks
extends GPProblem
implements SimpleProblemForm
```
Benchmarks by various people in the literature.

See Also:
Serialized Form

Field Summary

Fields
Modifier and Type	Field and Description
`(package private) static double`	`BIG_NUMBER`
`double[]`	`currentValue`
`static String[]`	`fs`
`static String[][]`	`fs_vars`
`static int`	`KEIJZER1`
`static int`	`KEIJZER10`
`static int`	`KEIJZER11`
`static int`	`KEIJZER12`
`static int`	`KEIJZER13`
`static int`	`KEIJZER14`
`static int`	`KEIJZER15`
`static int`	`KEIJZER2`
`static int`	`KEIJZER3`
`static int`	`KEIJZER4`
`static int`	`KEIJZER5`
`static int`	`KEIJZER6`
`static int`	`KEIJZER7`
`static int`	`KEIJZER8`
`static int`	`KEIJZER9`
`static int`	`KORNS1`
`static int`	`KORNS10`
`static int`	`KORNS11`
`static int`	`KORNS12`
`static int`	`KORNS13`
`static int`	`KORNS14`
`static int`	`KORNS15`
`static int`	`KORNS2`
`static int`	`KORNS3`
`static int`	`KORNS4`
`static int`	`KORNS5`
`static int`	`KORNS6`
`static int`	`KORNS7`
`static int`	`KORNS8`
`static int`	`KORNS9`
`static int`	`KOZA1`
`static int`	`KOZA2`
`static int`	`KOZA3`
`static String[]`	`names`
`static int`	`NGUYEN1`
`static int`	`NGUYEN10`
`static int`	`NGUYEN2`
`static int`	`NGUYEN3`
`static int`	`NGUYEN4`
`static int`	`NGUYEN5`
`static int`	`NGUYEN6`
`static int`	`NGUYEN7`
`static int`	`NGUYEN8`
`static int`	`NGUYEN9`
`static String`	`P_PROBLEM_TYPE`
`static String`	`P_TESTING_FILE`
`static String`	`P_TRAINING_FILE`
`static int`	`PAGIE1`
`static int`	`PAGIE2`
`(package private) static double`	`PROBABLY_ZERO`
`private static long`	`serialVersionUID`
`double[][]`	`testingInputs`
`double[]`	`testingOutputs`
`double[][]`	`trainingInputs`
`double[]`	`trainingOutputs`
`static int`	`VLADISLAVLEVA1`
`static int`	`VLADISLAVLEVA2`
`static int`	`VLADISLAVLEVA3`
`static int`	`VLADISLAVLEVA4`
`static int`	`VLADISLAVLEVA5`
`static int`	`VLADISLAVLEVA6`
`static int`	`VLADISLAVLEVA7`
`static int`	`VLADISLAVLEVA8`

Fields inherited from class ec.gp.GPProblem
input, P_DATA, P_GPPROBLEM, P_STACK, stack

Fields inherited from class ec.Problem
P_PROBLEM

Constructor Summary

Constructors
Constructor and Description

Benchmarks()

Constructors
Constructor and Description
`Benchmarks()`

Method Summary

Methods
Modifier and Type	Method and Description
`(package private) static double`	`asinh(double x)` Hyperbolic Arc Sin -- not standard in Java Math library
`(package private) void`	`buildIntervalPoints(EvolutionState state, ArrayList list, double[] min, double[] max, double[] interval, double[] current, int variable, int threadnum)`
`void`	`describe(EvolutionState state, Individual ind, int subpopulation, int threadnum, int log)` Part of SimpleProblemForm.
`double`	`error(double result, double expectedResult)` Returns the error between the result and the expected result of a single data point.
`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.
`double`	`func(EvolutionState state, double[] xs, int benchmark)` Return the function applied to the given data by benchmark problem.
`double[][]`	`generateIntervalSpacedSamples(EvolutionState state, double[] min, double[] max, double[] interval, int threadnum)` Produce sample points evenly spaced out between min and max in each dimension, with the given spacing interval per-dimension.
`double[][]`	`generateIntervalSpacedSamples(EvolutionState state, double min, double max, double interval, int threadnum)` Produce sample points evenly spaced out between min and max in one dimension, with the given spacing interval.
`double[][]`	`generateRandomSamples(EvolutionState state, double[] min, double[] max, int numPoints, int threadnum)` Produce random sample points between min and max, inclusive, in each dimension.
`double[][]`	`generateRandomSamples(EvolutionState state, double min, double max, int numPoints, int threadnum)` Produce random sample points between min and max, inclusive, in one dimension.
`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.
`double[][]`	`testPoints(EvolutionState state, int benchmark, int threadnum, double[][] trainpoints)` Produce test sample points for a given benchmark problem, to test generalization.
`double[][]`	`trainPoints(EvolutionState state, int benchmark, int threadnum)` Produce sample points for a given benchmark problem.

Methods inherited from class ec.gp.GPProblem
clone, defaultBase

Methods inherited from class ec.Problem
canEvaluate, closeContacts, describe, finishEvaluating, initializeContacts, prepareToEvaluate, reinitializeContacts

Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail
- serialVersionUID
```
private static final long serialVersionUID
```
  See Also:
  Constant Field Values
- KOZA1
```
public static final int KOZA1
```
  See Also:
  Constant Field Values
- KOZA2
```
public static final int KOZA2
```
  See Also:
  Constant Field Values
- KOZA3
```
public static final int KOZA3
```
  See Also:
  Constant Field Values
- NGUYEN1
```
public static final int NGUYEN1
```
  See Also:
  Constant Field Values
- NGUYEN2
```
public static final int NGUYEN2
```
  See Also:
  Constant Field Values
- NGUYEN3
```
public static final int NGUYEN3
```
  See Also:
  Constant Field Values
- NGUYEN4
```
public static final int NGUYEN4
```
  See Also:
  Constant Field Values
- NGUYEN5
```
public static final int NGUYEN5
```
  See Also:
  Constant Field Values
- NGUYEN6
```
public static final int NGUYEN6
```
  See Also:
  Constant Field Values
- NGUYEN7
```
public static final int NGUYEN7
```
  See Also:
  Constant Field Values
- NGUYEN8
```
public static final int NGUYEN8
```
  See Also:
  Constant Field Values
- NGUYEN9
```
public static final int NGUYEN9
```
  See Also:
  Constant Field Values
- NGUYEN10
```
public static final int NGUYEN10
```
  See Also:
  Constant Field Values
- PAGIE1
```
public static final int PAGIE1
```
  See Also:
  Constant Field Values
- PAGIE2
```
public static final int PAGIE2
```
  See Also:
  Constant Field Values
- KORNS1
```
public static final int KORNS1
```
  See Also:
  Constant Field Values
- KORNS2
```
public static final int KORNS2
```
  See Also:
  Constant Field Values
- KORNS3
```
public static final int KORNS3
```
  See Also:
  Constant Field Values
- KORNS4
```
public static final int KORNS4
```
  See Also:
  Constant Field Values
- KORNS5
```
public static final int KORNS5
```
  See Also:
  Constant Field Values
- KORNS6
```
public static final int KORNS6
```
  See Also:
  Constant Field Values
- KORNS7
```
public static final int KORNS7
```
  See Also:
  Constant Field Values
- KORNS8
```
public static final int KORNS8
```
  See Also:
  Constant Field Values
- KORNS9
```
public static final int KORNS9
```
  See Also:
  Constant Field Values
- KORNS10
```
public static final int KORNS10
```
  See Also:
  Constant Field Values
- KORNS11
```
public static final int KORNS11
```
  See Also:
  Constant Field Values
- KORNS12
```
public static final int KORNS12
```
  See Also:
  Constant Field Values
- KORNS13
```
public static final int KORNS13
```
  See Also:
  Constant Field Values
- KORNS14
```
public static final int KORNS14
```
  See Also:
  Constant Field Values
- KORNS15
```
public static final int KORNS15
```
  See Also:
  Constant Field Values
- KEIJZER1
```
public static final int KEIJZER1
```
  See Also:
  Constant Field Values
- KEIJZER2
```
public static final int KEIJZER2
```
  See Also:
  Constant Field Values
- KEIJZER3
```
public static final int KEIJZER3
```
  See Also:
  Constant Field Values
- KEIJZER4
```
public static final int KEIJZER4
```
  See Also:
  Constant Field Values
- KEIJZER5
```
public static final int KEIJZER5
```
  See Also:
  Constant Field Values
- KEIJZER6
```
public static final int KEIJZER6
```
  See Also:
  Constant Field Values
- KEIJZER7
```
public static final int KEIJZER7
```
  See Also:
  Constant Field Values
- KEIJZER8
```
public static final int KEIJZER8
```
  See Also:
  Constant Field Values
- KEIJZER9
```
public static final int KEIJZER9
```
  See Also:
  Constant Field Values
- KEIJZER10
```
public static final int KEIJZER10
```
  See Also:
  Constant Field Values
- KEIJZER11
```
public static final int KEIJZER11
```
  See Also:
  Constant Field Values
- KEIJZER12
```
public static final int KEIJZER12
```
  See Also:
  Constant Field Values
- KEIJZER13
```
public static final int KEIJZER13
```
  See Also:
  Constant Field Values
- KEIJZER14
```
public static final int KEIJZER14
```
  See Also:
  Constant Field Values
- KEIJZER15
```
public static final int KEIJZER15
```
  See Also:
  Constant Field Values
- VLADISLAVLEVA1
```
public static final int VLADISLAVLEVA1
```
  See Also:
  Constant Field Values
- VLADISLAVLEVA2
```
public static final int VLADISLAVLEVA2
```
  See Also:
  Constant Field Values
- VLADISLAVLEVA3
```
public static final int VLADISLAVLEVA3
```
  See Also:
  Constant Field Values
- VLADISLAVLEVA4
```
public static final int VLADISLAVLEVA4
```
  See Also:
  Constant Field Values
- VLADISLAVLEVA5
```
public static final int VLADISLAVLEVA5
```
  See Also:
  Constant Field Values
- VLADISLAVLEVA6
```
public static final int VLADISLAVLEVA6
```
  See Also:
  Constant Field Values
- VLADISLAVLEVA7
```
public static final int VLADISLAVLEVA7
```
  See Also:
  Constant Field Values
- VLADISLAVLEVA8
```
public static final int VLADISLAVLEVA8
```
  See Also:
  Constant Field Values
- names
```
public static final String[] names
```
- fs
```
public static final String[] fs
```
- fs_vars
```
public static final String[][] fs_vars
```
- PROBABLY_ZERO
```
static final double PROBABLY_ZERO
```
  See Also:
  Constant Field Values
- BIG_NUMBER
```
static final double BIG_NUMBER
```
  See Also:
  Constant Field Values
- P_TESTING_FILE
```
public static final String P_TESTING_FILE
```
  See Also:
  Constant Field Values
- P_TRAINING_FILE
```
public static final String P_TRAINING_FILE
```
  See Also:
  Constant Field Values
- P_PROBLEM_TYPE
```
public static final String P_PROBLEM_TYPE
```
  See Also:
  Constant Field Values
- currentValue
```
public double[] currentValue
```
- trainingInputs
```
public double[][] trainingInputs
```
- trainingOutputs
```
public double[] trainingOutputs
```
- testingInputs
```
public double[][] testingInputs
```
- testingOutputs
```
public double[] testingOutputs
```

Constructor Detail
- Benchmarks
```
public Benchmarks()
```

Method Detail

asinh
```
static double asinh(double x)
```
Hyperbolic Arc Sin -- not standard in Java Math library

generateRandomSamples

public double[][] generateRandomSamples(EvolutionState state,
                               double[] min,
                               double[] max,
                               int numPoints,
                               int threadnum)

Produce random sample points between min and max, inclusive, in each dimension.

generateRandomSamples

public double[][] generateRandomSamples(EvolutionState state,
                               double min,
                               double max,
                               int numPoints,
                               int threadnum)

Produce random sample points between min and max, inclusive, in one dimension.

buildIntervalPoints

void buildIntervalPoints(EvolutionState state,
                       ArrayList list,
                       double[] min,
                       double[] max,
                       double[] interval,
                       double[] current,
                       int variable,
                       int threadnum)

generateIntervalSpacedSamples

public double[][] generateIntervalSpacedSamples(EvolutionState state,
                                       double[] min,
                                       double[] max,
                                       double[] interval,
                                       int threadnum)

Produce sample points evenly spaced out between min and max in each dimension, with the given spacing interval per-dimension.

generateIntervalSpacedSamples

public double[][] generateIntervalSpacedSamples(EvolutionState state,
                                       double min,
                                       double max,
                                       double interval,
                                       int threadnum)

Produce sample points evenly spaced out between min and max in one dimension, with the given spacing interval. One dimension only.

trainPoints

public double[][] trainPoints(EvolutionState state,
                     int benchmark,
                     int threadnum)

Produce sample points for a given benchmark problem.

testPoints

public double[][] testPoints(EvolutionState state,
                    int benchmark,
                    int threadnum,
                    double[][] trainpoints)

Produce test sample points for a given benchmark problem, to test generalization.

func

public double func(EvolutionState state,
          double[] xs,
          int benchmark)
            throws IllegalArgumentException

Return the function applied to the given data by benchmark problem.

Throws:: IllegalArgumentException

error
```
public double error(double result,
           double expectedResult)
```
Returns the error between the result and the expected result of a single data point.

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 GPProblem

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

describe
```
public void describe(EvolutionState state,
            Individual ind,
            int subpopulation,
            int threadnum,
            int log)
```
Description copied from class: Problem

Part of SimpleProblemForm. Included here so you don't have to write the default version, which usually does nothing.

Specified by:

describe in interface SimpleProblemForm

Overrides:

describe in class Problem

Class Benchmarks

Field Summary

Fields inherited from class ec.gp.GPProblem

Fields inherited from class ec.Problem

Constructor Summary

Method Summary

Methods inherited from class ec.gp.GPProblem

Methods inherited from class ec.Problem

Methods inherited from class java.lang.Object

Field Detail

serialVersionUID

KOZA1

KOZA2

KOZA3

NGUYEN1

NGUYEN2

NGUYEN3

NGUYEN4

NGUYEN5

NGUYEN6

NGUYEN7

NGUYEN8

NGUYEN9

NGUYEN10

PAGIE1

PAGIE2

KORNS1

KORNS2

KORNS3

KORNS4

KORNS5

KORNS6

KORNS7

KORNS8

KORNS9

KORNS10

KORNS11

KORNS12

KORNS13

KORNS14

KORNS15

KEIJZER1

KEIJZER2

KEIJZER3

KEIJZER4

KEIJZER5

KEIJZER6

KEIJZER7

KEIJZER8

KEIJZER9

KEIJZER10

KEIJZER11

KEIJZER12

KEIJZER13

KEIJZER14

KEIJZER15

VLADISLAVLEVA1

VLADISLAVLEVA2

VLADISLAVLEVA3

VLADISLAVLEVA4

VLADISLAVLEVA5

VLADISLAVLEVA6

VLADISLAVLEVA7

VLADISLAVLEVA8

names

fs

fs_vars

PROBABLY_ZERO

BIG_NUMBER

P_TESTING_FILE

P_TRAINING_FILE

P_PROBLEM_TYPE

currentValue

trainingInputs

trainingOutputs

testingInputs

testingOutputs

Constructor Detail

Benchmarks

Method Detail