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CHAPTERT1 INTRODUCTION DATATMINING DataTMiningTisTtheTmethodTofTextractingTtheTmassiveTamountsTofTknowledge

CHAPTERT1 INTRODUCTION DATATMINING DataTMiningTisTtheTmethodTofTextractingTtheTmassiveTamountsTofTknowledge.TItTisTtheTusedTforTlocatingTinformationTlikeTpatterns,Tassociations,TanomaliesTandTsignificantTstructuresTfromThugeTamountsTofTdataTkeptTinTdatabase,TinformationTwarehouses,TorTotherTdataTrepositories.TThisTcanTbeTowingTtoTtheTsupplyTofTgiantTamountsTofTknowledgeTinTelectronicTforms,TandTadditionallyTtheTrequirementTforTmodifyingTtheTdataTintoTusefulTinformationTandTdataTforTbroaderTapplicationsTasTwellTasTmarketTanalysis,TbusinessTanalysis,TandTdataTprocessingThasTattractedTaTgoodTdealTofTattentionTinTdataTtrade. DataTminingThasTbeenTpopularlyTtreatedTasTaTwordTofTinformationTDiscoveryTinTDatabasesT(KDD),TothersTreadTasTaTnecessaryTstepTwithinTtheTprocessTofTinformationTdiscovery.TKnowledgeTdiscoveryTasTaTmethodTconsistsTofTAssociateTinTNursingTunvariedTsequenceTofTtheTsubsequentTsteps: knowledgeTcleaning(toTtakeTawayTnoiseTorTdigressiveTdata),T knowledgeTintegration(whereTmultipleTknowledgeTsourcesTisTalsoTcombined)1T, knowledgeTselection(whereTknowledgeTrelevantTtoTtheTanalysisTtaskTareaTunitTretrievedTfromTtheTdatabase),T knowledgeTtransformation(whereTknowledgeTareaTunitTremodeledTorTconsolidatedTintoTformsTacceptableTforTminingTbyTactivityToutlineTorTaggregationToperations,TforTinstance)T, knowledgeTmining(anTessentialTmethodTwhereverTintelligentTwaysTareaTunitTappliedTsoTasTtoTextractTknowledgeTpatterns),T patternTevaluation(toTdetermineTtheTactuallyTfascinatingTpatternsTrepresentingTdataTsupportedTsomeTpowerfulnessTmeasures;Tand dataTpresentationT(whereTimageTandTdataTillustrationTtechniquesTareaTunitTwontTtoTpresentTtheTwell-minedTdataTtoTtheTuser). DataTMiningTTasks DataTminingTtasksTmayTbeTclassifiedTintoT2TclassesT:TdescriptiveTdataTminingTandTpredictiveTdataTmining. SummarizationTisTthatTtheTgeneralizationTorTabstractionTofTinformation.TATcollectionTofTrelevantTknowledgeTisTabstractedTandTsummarized,TensuingTaTsmallerTsetTwhichTprovidesTaTgeneralTsummaryTofTinformation.…

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