com.rapidminer.operator.learner.meta
Class Bagging

java.lang.Object
  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, Learner, ParameterHandler, LoggingHandler

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.

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 repeatedly running a base learner on subsamples.

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

apply, applyInnerLearner, getEstimatedPerformance, getInnerOperatorCondition, getInputClasses, getInputDescription, getMaxNumberOfInnerOperators, getMinNumberOfInnerOperators, getOutputClasses, getWeights, shouldCalculateWeights, shouldEstimatePerformance, supportsCapability

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, 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

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 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.

Specified by:

getParameterTypes in interface ParameterHandler

Overrides:

getParameterTypes in class Operator