com.rapidminer.operator.validation.clustering
Class CentroidBasedEvaluator

java.lang.Object
  com.rapidminer.tools.AbstractObservable<Operator>
      com.rapidminer.operator.Operator
          com.rapidminer.operator.validation.clustering.CentroidBasedEvaluator

All Implemented Interfaces:

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

public class CentroidBasedEvaluator
extends Operator

An evaluator for centroid based clustering methods. The average within cluster distance is calculated by averaging the distance between the centroid and all examples of a cluster.

Author:

Sebastian Land, Michael Wurst, Ingo Mierswa

Field Summary

static java.lang.String[]	CRITERIA_LIST
static java.lang.String[]	CRITERIA_LIST_SHORT
static java.lang.String	PARAMETER_MAIN_CRITERION
static java.lang.String	PARAMETER_MAIN_CRITERION_ONLY
static java.lang.String	PARAMETER_MAXIMIZE
static java.lang.String	PARAMETER_NORMALIZE

Constructor Summary

CentroidBasedEvaluator(OperatorDescription description)
Constructor for ClusterDensityEvaluator.

Method Summary

void	doWork() Performs the actual work of the operator and must be implemented by subclasses.
java.util.List<ParameterType>	getParameterTypes() Returns a list of ParameterTypes describing the parameters of this operator.
boolean	shouldAutoConnect(OutputPort port) By default, all ports will be auto-connected by ExecutionUnit.autoWire(CompatibilityLevel, boolean, boolean).

Methods inherited from class com.rapidminer.operator.Operator

acceptsInput, addError, addError, addValue, addWarning, apply, apply, assumePreconditionsSatisfied, checkAll, checkAllExcludingMetaData, checkDeprecations, checkForStop, checkIO, checkProperties, clear, clearErrorList, cloneOperator, collectErrors, createExperimentTree, createExperimentTree, createFromXML, createFromXML, createFromXML, createMarkedExperimentTree, createMarkedProcessTree, createProcessTree, createProcessTree, disconnectPorts, execute, fireUpdate, freeMemory, 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, isEnabled, isExpanded, isParallel, isParameterSet, isRunning, log, log, logError, logNote, logWarning, lookupOperator, makeDirty, makeDirtyOnUpdate, notifyRenaming, performAdditionalChecks, preAutoWire, processFinished, processStarts, producesOutput, propagateDirtyness, register, registerOperator, remove, removeAndKeepConnections, rename, resume, setBreakpoint, setCompatibilityLevel, setEnabled, setEnclosingProcess, setExpanded, setInput, setListParameter, setPairParameter, setParameter, setParameters, setUserDescription, shouldAutoConnect, shouldStopStandaloneExecution, toString, transformMetaData, unregisterOperator, updateExecutionOrder, walk, 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

Field Detail

PARAMETER_MAIN_CRITERION

public static final java.lang.String PARAMETER_MAIN_CRITERION

See Also:

Constant Field Values

PARAMETER_MAIN_CRITERION_ONLY

public static final java.lang.String PARAMETER_MAIN_CRITERION_ONLY

See Also:

Constant Field Values

PARAMETER_NORMALIZE

public static final java.lang.String PARAMETER_NORMALIZE

See Also:

Constant Field Values

PARAMETER_MAXIMIZE

public static final java.lang.String PARAMETER_MAXIMIZE

See Also:

Constant Field Values

CRITERIA_LIST

public static final java.lang.String[] CRITERIA_LIST

CRITERIA_LIST_SHORT

public static final java.lang.String[] CRITERIA_LIST_SHORT

Constructor Detail

CentroidBasedEvaluator

public CentroidBasedEvaluator(OperatorDescription description)

Constructor for ClusterDensityEvaluator.

Method Detail

shouldAutoConnect

public boolean shouldAutoConnect(OutputPort port)

Description copied from class: Operator

By default, all ports will be auto-connected by ExecutionUnit.autoWire(CompatibilityLevel, boolean, boolean). Optional outputs were handled up to version 4.4 by parameters. From 5.0 on, optional outputs are computed iff the corresponding port is connected. For backward compatibility, operators can check if we should auto-connect a port by overriding this method (e.g. by checking a deprecated parameter). TODO: Remove in later versions

Overrides:

shouldAutoConnect in class Operator

doWork

public void doWork()
            throws OperatorException

Description copied from class: Operator

Performs the actual work of the operator and must be implemented by subclasses. Replaces the old method apply().

Overrides:

doWork in class Operator

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