com.rapidminer.operator.learner.meta
Class Bagging

java.lang.Object
  com.rapidminer.tools.AbstractObservable<Operator>
      com.rapidminer.operator.Operator
          com.rapidminer.operator.OperatorChain
              com.rapidminer.operator.learner.meta.AbstractMetaLearner
                  com.rapidminer.operator.learner.meta.Bagging

All Implemented Interfaces:

ConfigurationListener, PreviewListener, ResourceConsumer, CapabilityProvider, Learner, ParameterHandler, LoggingHandler, Observable<Operator>

public class Bagging
extends AbstractMetaLearner

This Bagging implementation can be used with all learners available in RapidMiner, not only the ones which originally are part of the Weka package.

Author:

Martin Scholz, Ingo Mierswa

Field Summary

protected int	currentIteration
static java.lang.String	PARAMETER_AVERAGE_CONFIDENCES Name of the flag indicating internal bootstrapping.
static java.lang.String	PARAMETER_ITERATIONS Name of the variable specifying the maximal number of iterations of the learner.
static java.lang.String	PARAMETER_SAMPLE_RATIO Name of the flag indicating internal bootstrapping.

Fields inherited from class com.rapidminer.operator.learner.meta.AbstractMetaLearner

exampleSetInput, innerModelSink

Fields inherited from interface com.rapidminer.operator.learner.CapabilityProvider

PROPERTY_RAPIDMINER_GENERAL_CAPABILITIES_WARN

Constructor Summary

Bagging(OperatorDescription description)
Constructor.

Method Summary

java.util.List<ParameterType>	getParameterTypes() Returns a list of ParameterTypes describing the parameters of this operator.
Model	learn(ExampleSet exampleSet) Constructs a Model by repeatedly running a base learner on subsamples.
boolean	supportsCapability(OperatorCapability capability) Checks for Learner capabilities.

Methods inherited from class com.rapidminer.operator.learner.meta.AbstractMetaLearner

applyInnerLearner, doWork, executeInnerLearner, getEstimatedPerformance, getInnerModelSink, getModelOutputPort, getTrainingSetInputPort, getWeights, modifyExampleSetMetaData, modifyGeneratedModelMetaData, shouldAutoConnect, shouldCalculateWeights, shouldEstimatePerformance

Methods inherited from class com.rapidminer.operator.OperatorChain

addOperator, addOperator, addSubprocess, areSubprocessesExtendable, assumePreconditionsSatisfied, checkDeprecations, checkIO, checkNumberOfInnerOperators, checkProperties, clear, cloneOperator, collectErrors, createProcessTree, createSubprocess, freeMemory, getAllInnerOperators, getAllInnerOperatorsAndMe, getImmediateChildren, getIndexOfOperator, getInnerOperatorCondition, getMaxNumberOfInnerOperators, getMinNumberOfInnerOperators, getNumberOfAllOperators, getNumberOfOperators, getNumberOfSubprocesses, getOperator, getOperatorFromAll, getOperators, getSubprocess, getSubprocesses, isEnabled, lookupOperator, notifyRenaming, performAdditionalChecks, processFinished, processStarts, propagateDirtyness, registerOperator, removeOperator, removeSubprocess, shouldAddNonConsumedInput, shouldReturnInnerOutput, unregisterOperator, updateExecutionOrder, walk

Methods inherited from class com.rapidminer.operator.Operator

acceptsInput, addError, addError, addValue, addWarning, apply, apply, checkAll, checkAllExcludingMetaData, checkForStop, clearErrorList, createExperimentTree, createExperimentTree, createFromXML, createFromXML, createFromXML, createMarkedExperimentTree, createMarkedProcessTree, createProcessTree, disconnectPorts, execute, fireUpdate, getAddOnlyAdditionalOutput, getApplyCount, getCompatibilityLevel, getDeliveredOutputClasses, getDeprecationInfo, getDesiredInputClasses, getDOMRepresentation, getEncoding, getErrorList, getExecutionUnit, getExperiment, getIncompatibleVersionChanges, getInput, getInput, getInput, getInputClasses, getInputDescription, getInputPorts, getIODescription, getLog, getLogger, getName, getNumberOfBreakpoints, getOperatorClassName, getOperatorDescription, getOutputClasses, getOutputPorts, getParameter, getParameterAsBoolean, getParameterAsChar, getParameterAsColor, getParameterAsDouble, getParameterAsFile, getParameterAsFile, getParameterAsInputStream, getParameterAsInt, getParameterAsMatrix, getParameterAsRepositoryLocation, getParameterAsString, getParameterHandler, getParameterList, getParameters, getParameterTupel, getParameterType, getParent, getPortOwner, getProcess, getResourceConsumptionEstimator, getRoot, getStartTime, getTransformer, getUserDescription, getValue, getValues, getXML, getXML, getXML, hasBreakpoint, hasBreakpoint, hasInput, inApplyLoop, isDebugMode, isDirty, isExpanded, isParallel, isParameterSet, isRunning, log, log, logError, logNote, logWarning, makeDirty, makeDirtyOnUpdate, preAutoWire, producesOutput, register, remove, removeAndKeepConnections, rename, resume, setBreakpoint, setCompatibilityLevel, setEnabled, setEnclosingProcess, setExpanded, setInput, setListParameter, setPairParameter, setParameter, setParameters, setUserDescription, shouldAutoConnect, shouldStopStandaloneExecution, toString, transformMetaData, writeXML, writeXML

Methods inherited from class com.rapidminer.tools.AbstractObservable

addObserver, addObserverAsFirst, fireUpdate, removeObserver

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.rapidminer.operator.learner.Learner

getName

Field Detail

PARAMETER_ITERATIONS

public static final java.lang.String PARAMETER_ITERATIONS

Name of the variable specifying the maximal number of iterations of the learner.

See Also:

Constant Field Values

PARAMETER_SAMPLE_RATIO

public static final java.lang.String PARAMETER_SAMPLE_RATIO

Name of the flag indicating internal bootstrapping.

See Also:

Constant Field Values

PARAMETER_AVERAGE_CONFIDENCES

public static final java.lang.String PARAMETER_AVERAGE_CONFIDENCES

Name of the flag indicating internal bootstrapping.

See Also:

Constant Field Values

currentIteration

protected int currentIteration

Constructor Detail

Bagging

public Bagging(OperatorDescription description)

Constructor.

Method Detail

learn

public Model learn(ExampleSet exampleSet)
            throws OperatorException

Constructs a Model by repeatedly running a base learner on subsamples.

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. ATTENTION! This will create new parameterTypes. For calling already existing parameter types use getParameters().getParameterTypes();

Specified by:

getParameterTypes in interface ParameterHandler

Overrides:

getParameterTypes in class Operator

supportsCapability

public boolean supportsCapability(OperatorCapability capability)

Description copied from interface: CapabilityProvider

Checks for Learner capabilities. Should return true if the given capability is supported.