edu.udo.cs.miningmart.operator.uep
Class SimpleBackwardFeatureSelectionGivenNoOfAttributes

java.lang.Object
  edu.udo.cs.miningmart.operator.ExecutableOperator
      edu.udo.cs.miningmart.operator.ConceptOperator
          edu.udo.cs.miningmart.operator.SingleCSOperator
              edu.udo.cs.miningmart.operator.FeatureSelection
                  edu.udo.cs.miningmart.operator.uep.UepFeatureSelection
                      edu.udo.cs.miningmart.operator.uep.SimpleBackwardFeatureSelectionGivenNoOfAttributes

public class SimpleBackwardFeatureSelectionGivenNoOfAttributes
extends UepFeatureSelection

M4 Compiler

Copyright: Copyright (c) 2002

Company: University Dortmund

Version:

$Id: SimpleBackwardFeatureSelectionGivenNoOfAttributes.java,v 1.7 2006/09/27 15:00:04 euler Exp $

Author:

Felix Koschin

Nested Class Summary

Nested classes/interfaces inherited from class edu.udo.cs.miningmart.operator.uep.UepFeatureSelection

UepFeatureSelection.myData, UepFeatureSelection.myTable

Field Summary

Fields inherited from class edu.udo.cs.miningmart.operator.uep.UepFeatureSelection

theClassAttribute

Fields inherited from class edu.udo.cs.miningmart.operator.FeatureSelection

mySelectedFeatures

Fields inherited from class edu.udo.cs.miningmart.operator.ConceptOperator

suffixForIntermediateViews

Fields inherited from class edu.udo.cs.miningmart.operator.ExecutableOperator

generatedSQLDefinitions

Constructor Summary

SimpleBackwardFeatureSelectionGivenNoOfAttributes()

Method Summary

java.util.Collection

computeListOfAttributes(Feature[] theSuperset) Abstract method to be implemented by all subclasses.

Methods inherited from class edu.udo.cs.miningmart.operator.uep.UepFeatureSelection

getMutualInforation, getNoOfAttributes, getTheClassAttribute, selectTheBestAttr, selectTheWorstAttr

Methods inherited from class edu.udo.cs.miningmart.operator.FeatureSelection

generateSQLDefinition, getTheAttributes, getTypeOfNewColumnSet, mustCopyFeature, occursIn, occursIn

Methods inherited from class edu.udo.cs.miningmart.operator.SingleCSOperator

generateColumnSetsForOp, generateSQLDefinition, getNewCSName, getTypeOfNewColumnSet, handleExtraOutputFeature

Methods inherited from class edu.udo.cs.miningmart.operator.ConceptOperator

compileStatement, createMetadata, createMetadataForOneBA, createSingleColumnSet, createStatement, generateColumns, getInputConcept, getNewCSName, getOutputConcept, getStringForSelection, setNewCSMultiStepBranch

Methods inherited from class edu.udo.cs.miningmart.operator.ExecutableOperator

autoPrint, checkConditions, doPrint, doPrint, execute, executeBusinessSingleValueSqlRead, executeBusinessSingleValueSqlReadL, executeBusinessSqlRead, executeBusinessSqlWrite, executeM4SingleValueSqlRead, executeM4SingleValueSqlReadL, executeM4SqlRead, executeM4SqlWrite, getArtificalColumnName, getBusinessDbms, getHighestLoopNr, getM4Db, getM4Dbms, getM4ObjectFromCache, getName, getNextM4SequenceValue, getNumberOfLoops, getOperator, getOpParamsIterator, getParameter, getParameter, getParameterObjectsOfAllLoops, getSingleParameter, getSingleParameter, getStep, giveWarningForChangedInputData, handleAssertions, isDeselectedParameter, isLoopable, isManual, isStepable, load, print, putM4ObjectToCache, showCreateStatement, storedProceduresAvailable

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleBackwardFeatureSelectionGivenNoOfAttributes

public SimpleBackwardFeatureSelectionGivenNoOfAttributes()

Method Detail

computeListOfAttributes

public java.util.Collection computeListOfAttributes(Feature[] theSuperset)
                                             throws M4CompilerError

Description copied from class: FeatureSelection

Abstract method to be implemented by all subclasses.

Specified by:

computeListOfAttributes in class FeatureSelection

Parameters:

theSuperset - An array of Feature objects to which the selection is to be applied

Returns:

the selected Features as a Collection

Throws:

M4CompilerError