不连续及不稳定数据管理英文

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1、EfficientManagementofInconsistentandUncertainDataRenéeJ.MillerUniversityofTorontoContributorsArielFuxman,PhDThesisMicrosoftSearchLabsJimGraySIGMOD2008DissertationAwardPeriklisAndritsos,PhDJiangDu,MSElhamFazli,MSDiegoFuxman,UndergradDirtyDatabasesThepresenceofdirtydataisamajorprobleminent

2、erprisesTraditionalsolution:datacleaning3No.Idon’tseeAnyproblemwiththedataLimitationsofDataCleaningSemi-automaticprocessRequireshighly-qualifieddomainexpertsTimeconsumingMaynotbepossibletowaituntilthedatabaseiscleanOperationalsystemsanswerqueriesassumingcleandataOurWorkIdentifyclassesofq

3、ueriesforwhichwecanobtainmeaningfulanswersfrompotentiallydirtydatabasesShowhowtodoitefficientlyandreusingexistingdatabasetechnology5WhyisthisBusinessIntelligence?Businessintelligence(BI)referstotechnologies,applicationsandpracticesforthecollection,integration,analysis,andpresentationofin

4、formation.ThegoalofBIistosupportbetterdecisionmaking,basedoninformation.DBMSshouldprovidemeaningfulqueryanswersevenoverdatathatisdirtyOutlineIntroductionSemanticsfordirtydatabasesContributionsConclusions7OutlineIntroductionSemanticsfordirtydatabasesContributionsConclusions8ADataIntegrati

5、onExampleIntegratingcustomerdata…9SalesShippingCustomerSupportWebFormsDemographicDataIntegratedCustomerDatabaseMatchingandMerging10CustidPeterNameAddress…IncomePeterYarrow276CollegeStreet…40KPaulStookey100BloorStreet…400KMaryTravers20UnionStreet…110KNameAddress…IncomePeterYarrow276Colleg

6、eStreet…40KPaulStookey100BloorStreet…400KMaryTravers20UnionStreet…110KCustidPeterNameAddress…IncomePeterYarrow276CollegeSt.…200KPaulStookey100BloorSt.…400KMaryTravers20UnionSt.…130KNameAddress…IncomePeterYarrow276CollegeSt.…200KPaulStookey100BloorSt.…400KMaryTravers20UnionSt.…130KWebSale

7、sMatchingandmergingaretwofundamentaltasksindataintegrationNameAddress…IncomePeterYarrow276CollegeStreet…200KPaulStookey100BloorSt.…400KMaryTravers20UnionSt.…130KNameAddress…IncomePeterYarrow276CollegeStreet…40KPaulStookey100BloorStreet…400KMaryTravers20UnionStreet…110KTru