edu.udo.cs.yale.operator.learner.weka
Class GenericWekaLearner

java.lang.Object
  edu.udo.cs.yale.operator.Operator
      edu.udo.cs.yale.operator.learner.AbstractLearner
          edu.udo.cs.yale.operator.learner.weka.GenericWekaLearner

All Implemented Interfaces:

ConfigurationListener, Learner, weka.core.TechnicalInformationHandler

public class GenericWekaLearner
extends AbstractLearner
implements weka.core.TechnicalInformationHandler

Performs the Weka learning scheme with the same name. See the Weka javadoc for further classifier and parameter descriptions.

Version:

$Id: GenericWekaLearner.java,v 1.18 2006/04/12 11:17:42 ingomierswa Exp $

Author:

Ingo Mierswa

Field Summary

static java.lang.String[]	WEKA_CLASSIFIERS
private java.util.List<ParameterType>	wekaParameters The list with the weka parameters.

Constructor Summary

GenericWekaLearner(OperatorDescription description)

Method Summary

java.util.List<ParameterType>	getParameterTypes() Returns a list of ParameterTypes describing the parameters of this operator.
weka.core.TechnicalInformation	getTechnicalInformation()
private weka.classifiers.Classifier	getWekaClassifier(java.lang.String[] parameters) Returns the Weka classifier based on the subtype of this operator.
java.lang.String	getWekaClassPath() This method is used by the GenericWekaMetaLearner to specify the learners name.
java.util.List	getWekaParameterList() This method is used by the GenericWekaMetaLearner to specify the learners parameters.
Model	learn(ExampleSet exampleSet) Trains a model.
boolean	supportsCapability(LearnerCapability capability) Checks for Learner capabilities.

Methods inherited from class edu.udo.cs.yale.operator.learner.AbstractLearner

apply, checkLearnerCapabilities, getEstimatedPerformance, getInputClasses, getInputDescription, getOptimizationPerformance, getOutputClasses, getWeights, shouldCalculateWeights, shouldDeliverOptimizationPerformance, shouldEstimatePerformance

Methods inherited from class edu.udo.cs.yale.operator.Operator

addError, addValue, addWarning, apply, checkDeprecations, checkIO, checkProperties, clearErrorList, cloneOperator, createExperimentTree, createExperimentTree, createFromXML, createMarkedExperimentTree, delete, experimentFinished, experimentStarts, getAddOnlyAdditionalOutput, getApplyCount, getDeliveredOutputClasses, getDeprecationInfo, getDesiredInputClasses, getErrorList, getExperiment, getInnerOperatorsXML, getInput, getInput, getInput, getIOContainerForInApplyLoopBreakpoint, getName, getNumberOfSteps, getOperatorClassName, getOperatorDescription, getParameter, getParameterAsBoolean, getParameterAsColor, getParameterAsDouble, getParameterAsFile, getParameterAsInt, getParameterAsString, getParameterList, getParameters, getParameterType, getParent, getStartTime, getStatus, getUserDescription, getValue, getValues, getXML, hasBreakpoint, hasBreakpoint, hasInput, inApplyLoop, isEnabled, isParameterSet, logMessage, performAdditionalChecks, register, remove, rename, resume, setBreakpoint, setEnabled, setExperiment, 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 edu.udo.cs.yale.operator.learner.Learner

getName

Field Detail

WEKA_CLASSIFIERS

public static final java.lang.String[] WEKA_CLASSIFIERS

wekaParameters

private java.util.List<ParameterType> wekaParameters

The list with the weka parameters.

Constructor Detail

GenericWekaLearner

public GenericWekaLearner(OperatorDescription description)

Method Detail

learn

public Model learn(ExampleSet exampleSet)
            throws OperatorException

Description copied from interface: Learner

Trains a model. This method should be called by apply() and is implemented by subclasses.

Specified by:

learn in interface Learner

Throws:

OperatorException

getWekaClassifier

private weka.classifiers.Classifier getWekaClassifier(java.lang.String[] parameters)
                                               throws OperatorException

Returns the Weka classifier based on the subtype of this operator. Parameters must be either the complete set of parameters or null (not an empty array).

Throws:

OperatorException

getTechnicalInformation

public weka.core.TechnicalInformation getTechnicalInformation()

Specified by:

getTechnicalInformation in interface weka.core.TechnicalInformationHandler

getWekaClassPath

public java.lang.String getWekaClassPath()

This method is used by the GenericWekaMetaLearner to specify the learners name.

getWekaParameterList

public java.util.List getWekaParameterList()

This method is used by the GenericWekaMetaLearner to specify the learners parameters.

supportsCapability

public boolean supportsCapability(LearnerCapability capability)

Description copied from interface: Learner

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

Specified by:

supportsCapability in interface Learner

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.

Overrides:

getParameterTypes in class Operator