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1、PersonalizedEigenTrustwiththeBetaDistributionDaeseonChoi,SeunghunJin,YounhoLee,andYongsuParkThisletterpresentsanenhancementofEigenTrust.UsingtheEigenTrustisadistributedprotocoltocomputethebetadistribution,localtrustvaluescanbemorecorrectlyconvergedglobaltrustvaluesofpeersb
2、yapplyingeachpeer’sevaluated.Simulationshowsthattheproposedschemelocaltrustvaluetransitively.Unlikeothermodels,EigenTrustcalculatesthelocaltrustmorecorrectlybyupto8%.Forreliesonlinearalgebraictheorytoguaranteeobtainingthepersonalization,theproposedschemeprovidescumulativec
3、onvergedglobaltrustvalues.Moreover,itisverysimpleandtransitivevaluesfromthelocaltrusttotheglobaltrustwithmathematicallyguaranteedconvergence.doesnotdependoncomplexparametersorassumptions.Recently,personalizedschemeshaveappearedinwhichKeywords:Trustmanagement,peer-to-peerne
4、twork,socialeachpeerorganizesaninitialtrustgroupandgraduallyextendsnetwork,security,trustevaluation.thegroupandupdatestrustinformation[2]-[6]toprovidepersonalizedtrustinformationindistributedenvironments.I.IntroductionHowever,suchschemesseeminfeasiblesincetheunderlyingWith
5、theadvanceoftheInternetandhigh-speedrelationgraphcannotbeusedforgeneralcasesor[2],[3]havewired/wirelessnetworks,peopleareabletointeractonlineanexponentialorderoftimecomplexity[7].muchmorefrequentlyandeasilythanoffline.ItispossibletoWeproposeanenhancementofEigenTrust.Usingt
6、hebetavisitstrangers’blogs,chatwithothers,andcarryoutimportantdistribution,theenhancedschemecancalculatethelocaltrusttransactionswithunfamiliarpeopleovertheInternet.valuemorecorrectly.WealsoprovidethecumulativetransitiveOneofthemostcrucialprerequisitesistrustestablishmentv
7、aluesfromlocaltrusttotheglobaltrust,whereeachpeercanfortheseonlinetransactionsorservices.Ifwecancorrectlycalculatethecombinedvaluesofhis/herlocaltrustwithglobalevaluateanotherperson’strustworthinessonline,wecanavoidones.Wemathematicallyprovethatthecombinedtrustvaluesthediv
8、erseandnumerousfraudsanddangers,suchaswithα=1convergetothoseofEigenTrust.Simulationresult