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ID:7291893
大小:280.66 KB
页数:10页
时间:2018-02-10
《effective use of reputation in peer-to-peer environment》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、*EffectiveUseofReputationinPeer-to-PeerEnvironmentsThanasisG.PapaioannouandGeorgeD.StamoulisDepartmentofInformatics,AthensUniversityofEconomicsandBusiness(AUEB),76PatisionStr.,10434Athens,Greece.{pathan,gstamoul}@aueb.grAbstract1.IntroductionPeer-to-peerenvironmentshavebecomepopularasPeer-to-peeren
2、vironmentsgainincreasingaframeworkforexchangeofservices.Intheseacceptanceintheinformationsocietyasanoverlayenvironments,certainpeersmayfailtoprovidetheirframeworkforexchangingservices.Thevalueofsuchservices.Reputationcanbeapropermeansofaservicefortheclientpeerdependsonthediscoveringlow-performingpe
3、ers,withoutaffectingperformanceofthepeersprovidingit.Infact,apeersignificantlyinherentcharacteristicsofPeer-to-Peermayprovideserviceswithalowperformancelevel.environments,suchasanonymityandprivacy.Thereasonforthiscanbeeitherthepeer’shiddentypeHowever,theaccuratecalculationofthereputation(i.e.strate
4、gy)orhishiddenquality(i.e.performingmetricsmaynotbesufficienttoprovidetherightability);however,sincebothofthesereasonshavetheincentivestopeers.Inthispaper,weshowthatthesameeffect,wedonotdistinguishbetweenpeersstraightforwardapproachforpeerstoexploitthefallingtotheformerorthelattercase.Reputationcan
5、reputationmetrics(i.e.byjustselectingasaprovidingbeapropermeansofrevealinglow-performingpeerspeertheonewiththehighestreputation)mayleadtoinelectronicenvironments,ifitiscalculatedaccuratelyunexpectedlylowefficiencyforhigh-performingpeers.[1],[3].However,theaccuratecalculationoftheWeargueandjustifyex
6、perimentallythatthereputationvaluebyitselfmaynotbeadequateasacalculationofthereputationvalueshastobemechanismtoimprovetheachievableefficiencyofcomplementedbyreputation-basedpoliciesthatdefinehigh-performingpeersandtoprovidetherightthepairsofpeerseligibletointeract.Weintroducetwoincentivesforpeersto
7、offerservicesofhighquality.orthogonaldimensionsconstitutingthereputation-Indeed,thestraightforwardapproachforpeerstobasedpolicies:“providerselection”and“contentionexploitthereputationmetricsistojustselectas
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