com.rapidminer.operator.features.construction
Class AGA

java.lang.Object
  com.rapidminer.operator.Operator
      com.rapidminer.operator.OperatorChain
          com.rapidminer.operator.features.construction.ExampleSetBasedFeatureOperator
              com.rapidminer.operator.features.construction.AbstractGeneratingGeneticAlgorithm
                  com.rapidminer.operator.features.construction.GeneratingGeneticAlgorithm
                      com.rapidminer.operator.features.construction.AGA

All Implemented Interfaces:

ConfigurationListener, PreviewListener, ParameterHandler, LoggingHandler

public class AGA
extends GeneratingGeneticAlgorithm

Basically the same operator as the GeneratingGeneticAlgorithm operator. This version adds additional generators and improves the simple GGA approach by providing some basic intron prevention techniques. In general, this operator seems to work better than the original approach but frequently deliver inferior results compared to the operator YAGGA2.

Author:

Ingo Mierswa

Field Summary

static java.lang.String	PARAMETER_ADAPTION_TYPE The parameter name for "Use this adaption type for additional peaks.
static java.lang.String	PARAMETER_ATTRIBUTES_PER_PEAK The parameter name for "Use this number of additional peaks for each found peak.
static java.lang.String	PARAMETER_EPSILON The parameter name for "Use this range for additional peaks for each found peak.
static java.lang.String	PARAMETER_EQUIVALENCE_EPSILON The parameter name for "Consider two attributes equivalent if their difference is not bigger than epsilon.
static java.lang.String	PARAMETER_EQUIVALENCE_SAMPLES The parameter name for "Check this number of samples to prove equivalency.
static java.lang.String	PARAMETER_EQUIVALENCE_USE_STATISTICS The parameter name for "Recalculates attribute statistics before equivalence check.
static java.lang.String	PARAMETER_REMOVE_EQUIVALENT The parameter name for "Remove equivalent attributes.
static java.lang.String	PARAMETER_REMOVE_USELESS The parameter name for "Remove useless attributes.
static java.lang.String	PARAMETER_RESTRICTIVE_SELECTION The parameter name for "Use restrictive generator selection (faster).
static java.lang.String	PARAMETER_SEARCH_FOURIER_PEAKS The parameter name for "Use this number of highest frequency peaks for sinus generation.
static java.lang.String	PARAMETER_USE_ABSOLUTE_VALUES The parameter name for "Generate absolute values.
static java.lang.String	PARAMETER_USE_ATAN The parameter name for "Generate arc tangens.
static java.lang.String	PARAMETER_USE_COS The parameter name for "Generate cosinus.
static java.lang.String	PARAMETER_USE_EXP The parameter name for "Generate exponential functions.
static java.lang.String	PARAMETER_USE_FLOOR_CEIL_FUNCTIONS The parameter name for "Generate floor, ceil, and rounded values.
static java.lang.String	PARAMETER_USE_LOG The parameter name for "Generate logarithmic functions.
static java.lang.String	PARAMETER_USE_MAX The parameter name for "Generate maximum values.
static java.lang.String	PARAMETER_USE_MIN The parameter name for "Generate minimum values.
static java.lang.String	PARAMETER_USE_POWER_FUNCTIONS The parameter name for "Generate the power of one attribute and another.
static java.lang.String	PARAMETER_USE_SGN The parameter name for "Generate signum values.
static java.lang.String	PARAMETER_USE_SIN The parameter name for "Generate sinus.
static java.lang.String	PARAMETER_USE_SQUARE_ROOTS The parameter name for "Generate square root values.
static java.lang.String	PARAMETER_USE_TAN The parameter name for "Generate tangens.

Fields inherited from class com.rapidminer.operator.features.construction.GeneratingGeneticAlgorithm

PARAMETER_MAX_NUMBER_OF_NEW_ATTRIBUTES, PARAMETER_MAX_TOTAL_NUMBER_OF_ATTRIBUTES, PARAMETER_P_GENERATE, PARAMETER_P_MUTATION

Fields inherited from class com.rapidminer.operator.features.construction.AbstractGeneratingGeneticAlgorithm

BOLTZMANN_SELECTION, CUT_SELECTION, NON_DOMINATED_SORTING_SELECTION, PARAMETER_CROSSOVER_TYPE, PARAMETER_DYNAMIC_SELECTION_PRESSURE, PARAMETER_GENERATIONS_WITHOUT_IMPROVAL, PARAMETER_KEEP_BEST_INDIVIDUAL, PARAMETER_MAXIMUM_NUMBER_OF_GENERATIONS, PARAMETER_P_CROSSOVER, PARAMETER_P_INITIALIZE, PARAMETER_POPULATION_SIZE, PARAMETER_RECIPROCAL_VALUE, PARAMETER_START_TEMPERATURE, PARAMETER_TOURNAMENT_SIZE, PARAMETER_USE_DIFF, PARAMETER_USE_DIV, PARAMETER_USE_MULT, PARAMETER_USE_PLUS, RANK_SELECTION, ROULETTE_WHEEL, SELECTION_SCHEMES, STOCHASTIC_UNIVERSAL, TOURNAMENT_SELECTION, UNIFORM_SELECTION

Fields inherited from class com.rapidminer.operator.features.construction.ExampleSetBasedFeatureOperator

PARAMETER_LOCAL_RANDOM_SEED, PARAMETER_MAXIMAL_FITNESS, PARAMETER_SHOW_STOP_DIALOG

Constructor Summary

AGA(OperatorDescription description)

Method Summary

IOObject[]	apply() Applies the feature operator: collects the pre- and postevaluation operators create an initial population evaluate the initial population loop as long as solution is not good enough apply all pre evaluation operators evaluate the population update the population's best individual apply all post evaluation operators return all generation's best individual
java.util.List<FeatureGenerator>	getGenerators() Returns a list with all generator which should be used.
java.util.List<ParameterType>	getParameterTypes() Returns a list of ParameterTypes describing the parameters of this operator.
protected java.util.List<ExampleSetBasedPopulationOperator>	getPreProcessingPopulationOperators(ExampleSet input)

Methods inherited from class com.rapidminer.operator.features.construction.GeneratingGeneticAlgorithm

getGeneratingPopulationOperator, getMutationPopulationOperator

Methods inherited from class com.rapidminer.operator.features.construction.AbstractGeneratingGeneticAlgorithm

createInitialPopulation, getCrossoverPopulationOperator, getPostEvaluationPopulationOperators, getPostProcessingPopulationOperators, getPreEvaluationPopulationOperators, solutionGoodEnough

Methods inherited from class com.rapidminer.operator.features.construction.ExampleSetBasedFeatureOperator

evaluate, evaluate, getCheckForMaximum, getInnerOperatorCondition, getInputClasses, getMaxNumberOfInnerOperators, getMinNumberOfInnerOperators, getOutputClasses, getPopulation, getRandom, setCheckForMaximum

Methods inherited from class com.rapidminer.operator.OperatorChain

addAddListener, addOperator, addOperator, checkDeprecations, checkIO, checkNumberOfInnerOperators, checkProperties, clearErrorList, cloneOperator, createExperimentTree, createProcessTree, getAllInnerOperators, getIndexOfOperator, getInnerOperatorForName, getInnerOperatorsXML, getNumberOfAllOperators, getNumberOfOperators, getOperator, getOperatorFromAll, getOperators, performAdditionalChecks, processFinished, processStarts, registerOperator, removeAddListener, removeOperator, shouldAddNonConsumedInput, shouldReturnInnerOutput, unregisterOperator

Methods inherited from class com.rapidminer.operator.Operator

addError, addValue, addWarning, apply, checkForStop, createExperimentTree, createFromXML, createMarkedExperimentTree, createMarkedProcessTree, createProcessTree, getAddOnlyAdditionalOutput, getApplyCount, getDeliveredOutputClasses, getDeprecationInfo, getDesiredInputClasses, getEncoding, getErrorList, getExperiment, getInput, getInput, getInput, getInputDescription, getIOContainerForInApplyLoopBreakpoint, getIODescription, getLog, getName, getOperatorClassName, getOperatorDescription, getParameter, getParameterAsBoolean, getParameterAsColor, getParameterAsDouble, getParameterAsFile, getParameterAsFile, getParameterAsInputStream, getParameterAsInt, getParameterAsMatrix, getParameterAsString, getParameterList, getParameters, getParameterType, getParent, getProcess, getStartTime, getStatus, getUserDescription, getValue, getValues, getXML, hasBreakpoint, hasBreakpoint, hasInput, inApplyLoop, isDebugMode, isEnabled, isExpanded, isParallel, isParameterSet, log, logError, logNote, logWarning, register, remove, rename, resume, setApplyCount, setBreakpoint, setEnabled, setExpanded, setInput, setListParameter, setOperatorParameters, setParameter, setParameters, setParent, setUserDescription, toString, writeXML

Methods inherited from class java.lang.Object

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

Field Detail

PARAMETER_USE_SQUARE_ROOTS

public static final java.lang.String PARAMETER_USE_SQUARE_ROOTS

The parameter name for "Generate square root values."

See Also:

Constant Field Values

PARAMETER_USE_POWER_FUNCTIONS

public static final java.lang.String PARAMETER_USE_POWER_FUNCTIONS

The parameter name for "Generate the power of one attribute and another."

See Also:

Constant Field Values

PARAMETER_USE_SIN

public static final java.lang.String PARAMETER_USE_SIN

The parameter name for "Generate sinus."

See Also:

Constant Field Values

PARAMETER_USE_COS

public static final java.lang.String PARAMETER_USE_COS

The parameter name for "Generate cosinus."

See Also:

Constant Field Values

PARAMETER_USE_TAN

public static final java.lang.String PARAMETER_USE_TAN

The parameter name for "Generate tangens."

See Also:

Constant Field Values

PARAMETER_USE_ATAN

public static final java.lang.String PARAMETER_USE_ATAN

The parameter name for "Generate arc tangens."

See Also:

Constant Field Values

PARAMETER_USE_EXP

public static final java.lang.String PARAMETER_USE_EXP

The parameter name for "Generate exponential functions."

See Also:

Constant Field Values

PARAMETER_USE_LOG

public static final java.lang.String PARAMETER_USE_LOG

The parameter name for "Generate logarithmic functions."

See Also:

Constant Field Values

PARAMETER_USE_ABSOLUTE_VALUES

public static final java.lang.String PARAMETER_USE_ABSOLUTE_VALUES

The parameter name for "Generate absolute values."

See Also:

Constant Field Values

PARAMETER_USE_MIN

public static final java.lang.String PARAMETER_USE_MIN

The parameter name for "Generate minimum values."

See Also:

Constant Field Values

PARAMETER_USE_MAX

public static final java.lang.String PARAMETER_USE_MAX

The parameter name for "Generate maximum values."

See Also:

Constant Field Values

PARAMETER_USE_SGN

public static final java.lang.String PARAMETER_USE_SGN

The parameter name for "Generate signum values."

See Also:

Constant Field Values

PARAMETER_USE_FLOOR_CEIL_FUNCTIONS

public static final java.lang.String PARAMETER_USE_FLOOR_CEIL_FUNCTIONS

The parameter name for "Generate floor, ceil, and rounded values."

See Also:

Constant Field Values

PARAMETER_RESTRICTIVE_SELECTION

public static final java.lang.String PARAMETER_RESTRICTIVE_SELECTION

The parameter name for "Use restrictive generator selection (faster)."

See Also:

Constant Field Values

PARAMETER_REMOVE_USELESS

public static final java.lang.String PARAMETER_REMOVE_USELESS

The parameter name for "Remove useless attributes."

See Also:

Constant Field Values

PARAMETER_REMOVE_EQUIVALENT

public static final java.lang.String PARAMETER_REMOVE_EQUIVALENT

The parameter name for "Remove equivalent attributes."

See Also:

Constant Field Values

PARAMETER_EQUIVALENCE_SAMPLES

public static final java.lang.String PARAMETER_EQUIVALENCE_SAMPLES

The parameter name for "Check this number of samples to prove equivalency."

See Also:

Constant Field Values

PARAMETER_EQUIVALENCE_EPSILON

public static final java.lang.String PARAMETER_EQUIVALENCE_EPSILON

The parameter name for "Consider two attributes equivalent if their difference is not bigger than epsilon."

See Also:

Constant Field Values

PARAMETER_EQUIVALENCE_USE_STATISTICS

public static final java.lang.String PARAMETER_EQUIVALENCE_USE_STATISTICS

The parameter name for "Recalculates attribute statistics before equivalence check."

See Also:

Constant Field Values

PARAMETER_SEARCH_FOURIER_PEAKS

public static final java.lang.String PARAMETER_SEARCH_FOURIER_PEAKS

The parameter name for "Use this number of highest frequency peaks for sinus generation."

See Also:

Constant Field Values

PARAMETER_ATTRIBUTES_PER_PEAK

public static final java.lang.String PARAMETER_ATTRIBUTES_PER_PEAK

The parameter name for "Use this number of additional peaks for each found peak."

See Also:

Constant Field Values

PARAMETER_EPSILON

public static final java.lang.String PARAMETER_EPSILON

The parameter name for "Use this range for additional peaks for each found peak."

See Also:

Constant Field Values

PARAMETER_ADAPTION_TYPE

public static final java.lang.String PARAMETER_ADAPTION_TYPE

The parameter name for "Use this adaption type for additional peaks."

See Also:

Constant Field Values

Constructor Detail

AGA

public AGA(OperatorDescription description)

Method Detail

apply

public IOObject[] apply()
                 throws OperatorException

Description copied from class: ExampleSetBasedFeatureOperator

Applies the feature operator:

1. collects the pre- and postevaluation operators
2. create an initial population
3. evaluate the initial population
4. loop as long as solution is not good enough
   1. apply all pre evaluation operators
   2. evaluate the population
   3. update the population's best individual
   4. apply all post evaluation operators
5. return all generation's best individual

Overrides:

apply in class ExampleSetBasedFeatureOperator

Returns:

the last inner operator's output or the input itself if the chain is empty.

Throws:

OperatorException

getGenerators

public java.util.List<FeatureGenerator> getGenerators()

Description copied from class: AbstractGeneratingGeneticAlgorithm

Returns a list with all generator which should be used.

Overrides:

getGenerators in class AbstractGeneratingGeneticAlgorithm

getPreProcessingPopulationOperators

protected java.util.List<ExampleSetBasedPopulationOperator> getPreProcessingPopulationOperators(ExampleSet input)
                                                                                         throws OperatorException

Overrides:

getPreProcessingPopulationOperators in class AbstractGeneratingGeneticAlgorithm

Throws:

OperatorException

getParameterTypes

public java.util.List<ParameterType> getParameterTypes()

Description copied from class: Operator

Returns a list of ParameterTypes describing the parameters of this operator. The default implementation returns an empty list if no input objects can be retained and special parameters for those input objects which can be prevented from being consumed.

Specified by:

getParameterTypes in interface ParameterHandler

Overrides:

getParameterTypes in class GeneratingGeneticAlgorithm