基于工作倉(cāng)庫(kù)的OLAM技術(shù)在決策支持系統(tǒng)中的研究與應(yīng)用.pdf

1、南京航空航天大學(xué)碩士學(xué)位論文基于工作倉(cāng)庫(kù)的OLAM技術(shù)在決策支持系統(tǒng)中的研究與應(yīng)用姓名：馬治國(guó)申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：計(jì)算機(jī)應(yīng)用技術(shù)指導(dǎo)教師：鄭洪源20081201基于工作倉(cāng)庫(kù)的OLAM技術(shù)在決策支持系統(tǒng)中的研究與應(yīng)用iiAbstractWiththerapiddevelopmentofinfmationtechnologyagreatmassofdatahavebeenbuiltupintheenterprise.Agreatmass

2、ofdatawhichhasafastgrowtharecollectedstedinlargescaledatabasesit’sdifficulttounderstthenwithoutapowerfultool.OnLineAnalyticalMiningwhichisbasedondatawarehouseisintroducedintomodernenterprisedecisionsupptsystemfrequentlyi

3、toffersaconvenientefficientdecisionsupptfenterprisedecisionmaker.NeverthelessthebasisofdatastatisticalanalysisdatamininginOLAMareusuallyvariousitalsoneedahighaccuracyefficiency.ThetraditionaltechnologyofOLAMusuallybrings

4、massdatasetitrestrainedthefunctionofdataminingalsohasalowefficiencyofalgithm.Thisarticlefinishedseveralmaintasksasfollowstowardsthequestionsmentionedabove:Therequirementofthedecisionsupptsystembasedondatawarehouseunderth

5、isenvironmentisanalyzedthesystemarchitectureofOLAMbasedonwkwarehousemultidimensionalassociationruleisdesignedaccompaniedbyillustrationsexplanations.Thentheoperationsheetofsystemisgiventheacteristicofsystemisanalyzed.Theb

6、ottleneckdefectofOLAMbasedondatawarehouseareanalyzed.Thekeypointsofwkwarehouseareexpatiated.IndertogetthedatasetimmediatelyreducetheoperationofIOtodataservermostofdatasetwhichareusedfrequentlyaredisposedusingthetechnolog

7、yofdatacache.Anewdatacachealgithmispropoundedwhichmakesaneffectivenessreliabilitytothedatainthewkwarehouseraisesthehitrateofcachespooler.Onaccountofthesimplicityloweffectiveofdimensionalityindatamininginthetraditionaltec

8、hnologyofOLAMaminingmodelofmultidimensionalassociationruleisdesignedanewmultidimensionalassociationrulealgithmbasedonapriiwithoutpruningispropounded.AccdingtotheevaluationstardofImprovementtheassociationruleswhichareinte

9、restedbyuserarededucedtheaccuracyvarietyofresultarealsoraised.Thescientificachievementsofthisarticlehavebeenappliedtosomemarineboardshippingdecisionsupptsystemfthefirsttime.Thepracticeindicatedthattheappcicationofthenewt

10、echnologyacceleratestheprocessofdatastatisticalanalysisraisestheaccuracyofresult.Meanwhileitenhancesthedecisionabilityofleadingbodies.Keywds:DecisionSupptOnLineAnalyticalMiningWkWarehouseDataCacheMultidimensionalAssociat