the socialtrust framework for trusted social information management architecture and algorithms

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1、InformationSciences180(2010)95–112ContentslistsavailableatScienceDirectInformationSciencesjournalhomepage:www.elsevier.com/locate/insTheSocialTrustframeworkfortrustedsocialinformationmanagement:Architectureandalgorithmsa,*bbJamesCaverlee,LingLiu,SteveWebbaDepartmentofComputerScience,TexasA&M

2、University,TAMU3112,CollegeStation,TX77843-3112,USAbCollegeofComputing,GeorgiaTechAtlanta,GA30332-0765,USAarticleinfoabstractArticlehistory:Socialinformationsystemsareapromisingnewparadigmforlarge-scaledistributedinfor-Received2October2008mationmanagement,asevidencedbythesuccessoflarge-scale

3、informationsharingcom-Receivedinrevisedform31March2009munities,socialmediasites,andweb-basedsocialnetworks.ButtheincreasingrelianceonAccepted24June2009thesesocialsystemsalsoplacesindividualsandtheircomputersystemsatrisk,creatingopportunitiesformaliciousparticipantstoexploitthetightsocialfabr

4、icofthesenetworks.Withtheseproblemsinmind,thismanuscriptpresentstheSocialTrustframeworkforKeywords:enablingtrustedsocialinformationmanagementinInternet-scalesocialinformationsys-Trusttems.Concretely,westudyonlinesocialnetworks,consideranumberofvulnerabilitiesSocialwebReputationinherentinonli

5、nesocialnetworks,andintroducetheSocialTrustframeworkforsupportingRelationshipqualitytamper-resilienttrustestablishment.Westudythreekeyfactorsfortrustestablishmentinonlinesocialnetworks–trustgroupfeedback,distinguishingtheuser’srelationshipqualityfromtrust,andtrackinguserbehavior–anddescribea

6、principledapproachforassessingeachcomponent.InadditiontotheSocialTrustframework,whichprovidesanetwork-wideperspectiveonthetrustofallusers,wedescribeapersonalizedextensioncalledmySocial-Trust,whichprovidesauser-centrictrustperspectivethatcanbeoptimizedforindividualuserswithinthenetwork.Finall

7、y,weexperimentallyevaluatetheSocialTrustframeworkusingrealonlinesocialnetworkingdataconsistingofmillionsofMySpaceprofilesandrelationships.Whileothertrustaggregationapproacheshavebeendevelopedandimple-mentedbyothers,wenotethatitisraretofindsuchalarge-