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1、山东师范大学硕士学位论文关键词:教育资源网格;信任域;模糊逻辑分类号:TP393II山东师范大学硕士学位论文ResearchonEducationalResourcesGrid-BasedTrustMechanismABSTRACTConstructionofeducationalresourcesisimportantassurancetoeducationinformation'srapiddevelopment,butfollowingthenumberofeducationalresourcesincrea
2、sesdramatically.EducationResourceGridcameintobeinginordertoavoidcomingintolonelyinformationislandsofeducationalresources、causingduplicateconstructionofeducationalresourcesandsafeguardtheoverallsharingofeducationalresources,andthesecurityproblemistheimportantas
3、pectintheresearchofEducationResourceGrid.ThestudyofTrustModelisinalongtime,andhasbecomeacoreelementofthegridsecurity.TrustmechanismcanbetterresponseGrid'sheterogeneity、dynamic、autonomousandsoon,andsolvethegridsecurityrisksmoreeffectivelythanthetraditionalsecur
4、itymechanisms.EducationResourceGridisaspecialformofGrid,havingGridcharacteristicsandthecharacteristicsofitsown.Inthispaper,TrustmodelisintroducedintoEducationResourceGridtoconstructTrustModelofEducationalResourceGrid,combinedthecharacteristicsofEducationResour
5、ceGrid,onthebasisofimprovinggridtrustmodelbasedontrustdomain.Thispaper'smainworkasfollows:(1)ThispaperresearchesseveralclassicaldatagridmodelandEducationResourceGrid.Basedonhierarchyofeducationalresourcesinrealworld,thispaperconstructsmulti-levelEducationResou
6、rceGridbasedondomain,whichadoptsthetreestructure,combinesthelevelwithdomain,andisdividedintomulti-domainstructurespecifically,summinguptheadvantagesofcentralizedstorageanddistributedstorage.(2)Thischapterpresentsamodifiedhierarchicaltrustmodelbasedontrustdomai
7、ns,whichfocusestheideaofthreemodels,expandsandimprovesthetraditionaltrustmodel:basedonsubjectivelogic,trustdomain,fuzzylogictrustmodeltrust.Modelisconstructedinviewoftrustmodelbasedondomain,maintainingthreetrustinterrelationtable:Between-DomainTrustTable、In-Do
8、mainTrustTable、Between-NodeTrustTable.Thetrustinterrelationcombinessubjectivelogicandfuzzylogic,andisdividedintodirecttrustinterrelationandindirecttrustinter-relation,thereforeanew