com.rapidminer.operator.features.aggregation
Class EvolutionaryFeatureAggregation

java.lang.Object
  com.rapidminer.operator.Operator
      com.rapidminer.operator.OperatorChain
          com.rapidminer.operator.features.aggregation.EvolutionaryFeatureAggregation

All Implemented Interfaces:

ConfigurationListener, PreviewListener, ParameterHandler, LoggingHandler

public class EvolutionaryFeatureAggregation
extends OperatorChain

Performs an evolutionary feature aggregation. Each base feature is only allowed to be used as base feature, in one merged feature, or it may not be used at all.

Author:

Ingo Mierswa ingomierswa Exp $

Field Summary

static java.lang.String	PARAMETER_AGGREGATION_FUNCTION
static java.lang.String	PARAMETER_CROSSOVER_TYPE
static java.lang.String	PARAMETER_LOCAL_RANDOM_SEED
static java.lang.String	PARAMETER_MAXIMUM_NUMBER_OF_GENERATIONS
static java.lang.String	PARAMETER_P_CROSSOVER
static java.lang.String	PARAMETER_POPULATION_CRITERIA_DATA_FILE
static java.lang.String	PARAMETER_POPULATION_SIZE
static java.lang.String	PARAMETER_SELECTION_TYPE
static java.lang.String	PARAMETER_TOURNAMENT_FRACTION

Constructor Summary

EvolutionaryFeatureAggregation(OperatorDescription description)
Creates a new evolutionary feature aggregation algorithm.

Method Summary

IOObject[]	apply() Applies all inner operators.
void	evaluate(java.util.List population, ExampleSet originalExampleSet) Creates example sets from all individuals and invoke the inner operators in order to estimate the performance.
InnerOperatorCondition	getInnerOperatorCondition() Must return a condition of the IO behaviour of all desired inner operators.
java.lang.Class<?>[]	getInputClasses() Returns the classes that are needed as input.
int	getMaxNumberOfInnerOperators() Returns the maximum number of inner operators.
int	getMinNumberOfInnerOperators() Returns the minimum number of inner operators.
java.lang.Class<?>[]	getOutputClasses() Returns the classes that are guaranteed to be returned by apply() as additional output.
java.util.List<ParameterType>	getParameterTypes() Returns a list of ParameterTypes describing the parameters of this operator.

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_POPULATION_CRITERIA_DATA_FILE

public static final java.lang.String PARAMETER_POPULATION_CRITERIA_DATA_FILE

See Also:

Constant Field Values

PARAMETER_AGGREGATION_FUNCTION

public static final java.lang.String PARAMETER_AGGREGATION_FUNCTION

See Also:

Constant Field Values

PARAMETER_POPULATION_SIZE

public static final java.lang.String PARAMETER_POPULATION_SIZE

See Also:

Constant Field Values

PARAMETER_MAXIMUM_NUMBER_OF_GENERATIONS

public static final java.lang.String PARAMETER_MAXIMUM_NUMBER_OF_GENERATIONS

See Also:

Constant Field Values

PARAMETER_SELECTION_TYPE

public static final java.lang.String PARAMETER_SELECTION_TYPE

See Also:

Constant Field Values

PARAMETER_TOURNAMENT_FRACTION

public static final java.lang.String PARAMETER_TOURNAMENT_FRACTION

See Also:

Constant Field Values

PARAMETER_CROSSOVER_TYPE

public static final java.lang.String PARAMETER_CROSSOVER_TYPE

See Also:

Constant Field Values

PARAMETER_P_CROSSOVER

public static final java.lang.String PARAMETER_P_CROSSOVER

See Also:

Constant Field Values

PARAMETER_LOCAL_RANDOM_SEED

public static final java.lang.String PARAMETER_LOCAL_RANDOM_SEED

See Also:

Constant Field Values

Constructor Detail

EvolutionaryFeatureAggregation

public EvolutionaryFeatureAggregation(OperatorDescription description)

Creates a new evolutionary feature aggregation algorithm.

Method Detail

apply

public IOObject[] apply()
                 throws OperatorException

Description copied from class: OperatorChain

Applies all inner operators. The input to this operator becomes the input of the first inner operator. The latter's output is passed to the second inner operator and so on. Note to subclassers: If subclasses (for example wrappers) want to make use of this method remember to call exactly this method (super.apply()) and do not call super.apply(IOContainer) erroneously which will result in an infinite loop.

Overrides:

apply in class OperatorChain

Returns:

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

Throws:

OperatorException

evaluate

public void evaluate(java.util.List population,
                     ExampleSet originalExampleSet)
              throws OperatorException

Creates example sets from all individuals and invoke the inner operators in order to estimate the performance.

Throws:

OperatorException

getInputClasses

public java.lang.Class<?>[] getInputClasses()

Description copied from class: Operator

Returns the classes that are needed as input. May be null or an empty (no desired input). As default, all delivered input objects are consumed and must be also delivered as output in both Operator.getOutputClasses() and Operator.apply() if this is necessary. This default behavior can be changed by overriding Operator.getInputDescription(Class). Subclasses which implement this method should not make use of parameters since this method is invoked by getParameterTypes(). Therefore, parameters are not fully available at this point of time and this might lead to exceptions. Please use InputDescriptions instead.

Specified by:

getInputClasses in class Operator

getOutputClasses

public java.lang.Class<?>[] getOutputClasses()

Description copied from class: Operator

Returns the classes that are guaranteed to be returned by apply() as additional output. Please note that input objects which should not be consumed must also be defined by this method (e.g. an example set which is changed but not consumed in the case of a preprocessing operator must be defined in both, the methods Operator.getInputClasses() and Operator.getOutputClasses()). The default behavior for input consumation is defined by Operator.getInputDescription(Class) and can be changed by overwriting this method. Objects which are not consumed (defined by changing the implementation in Operator.getInputDescription(Class)) must not be defined as additional output in this method.

May deliver null or an empy array (no additional output is produced or guaranteed). Must return the class array of delivered output objects otherwise.

Specified by:

getOutputClasses in class Operator

getMinNumberOfInnerOperators

public int getMinNumberOfInnerOperators()

Description copied from class: OperatorChain

Returns the minimum number of inner operators.

Specified by:

getMinNumberOfInnerOperators in class OperatorChain

getMaxNumberOfInnerOperators

public int getMaxNumberOfInnerOperators()

Description copied from class: OperatorChain

Returns the maximum number of inner operators.

Specified by:

getMaxNumberOfInnerOperators in class OperatorChain

getInnerOperatorCondition

public InnerOperatorCondition getInnerOperatorCondition()

Description copied from class: OperatorChain

Must return a condition of the IO behaviour of all desired inner operators. If there are no "special" conditions and the chain works similar to a simple operator chain this method should at least return a SimpleChainInnerOperatorCondition. More than one condition should be combined with help of the class CombinedInnerOperatorCondition.

Specified by:

getInnerOperatorCondition in class OperatorChain

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 Operator