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1、PERSPECTIVESCOMPUTERSCIENCEAnalysisofonlinesocialnetworksmayWeavingaWebofTrustprovideametricforestablishingtrustinuser-generatedcontent.JenniferGolbeckncreasingly,peoplearetousersonthebasisofuserprofiles,arepop-Istudyingsocialandcol-ularandhavebeensuccessf
2、ulfortopicsaslaborativeWebtechnolo-diverseasmovies(6)andskiroutes(7).giesforuseinscience(1,2).E-mail,wherethetrustthattherecipienthasHowever,issuessuchaspri-inthesenderisusedtorankmessages(13),isvacy,confidentiality,andtrustanotherapplication.Peer-to-peers
3、ystemsarisearoundtheuseofthesehavealsousedtrustfromsocialnetworkstotechnologies.Scienceiscru-improveroutingbyrelyingonpeerscon-ciallybasedonknowingpro-trolledbytrustedpeople(14).venance—whoproducedwhat,Theseapplicationshavebeenevaluatedhowandwhere—andonthe
4、andshowntoimprovethewaypeopleaccessWeb,trustingscientificinfor-user-generatedcontent.However,thereismationisbecomingmoredif-muchworktobedoneinthisarea.Themostficultforbothscientistsandcriticalisidentifyingsourcesoftrustedinfor-thegeneralpublic.User-gen-mat
5、ion.Althoughwehavealgorithmsthateratedcontent,evenfrompro-workwellonsocialnetworkswhereusersratefessionals,canbeopinionatedGotit…withalittlehelpfrommy“trusted”friends.thetrustworthinessoftheirpeers,thissensi-onMarch23,2010(bothinformedanduninfor-tiveinform
6、ationisneverpubliclyshared,med),inaccurate,anddeceiving.Withanimportant.Furtherexperimentshaveshownmakingitdifficultforthird-partyapplicationsoverwhelmingamountofinformationofthatfilteringinformationbasedontrustispar-tomakeuseofthattrust.Moremechanismsques
7、tionableoriginandreliability,findingticularlyeffectivewhentheuser’sopiniondif-areneededthatcaninfertrustaccuratelyfromtrustedinformationcreatedbytrustedpeoplefersfromthatoftheaveragepopulation(6).lesssensitivesources.Furtherdevelopmentisisthenewchallenge.T
8、heuseofsocialtrustEssentially,whenusersmostneedinforma-alsonecessarytounderstandthecircum-relationshipsforthistaskisbothpracticalandtionbasedontheirviewpoint,usingsocialstanceswheretrustoffersthemostbenefit.I
