简介:Apeer-to-peer(P2P)networkisadistributedapplicationarchitecturewhichprovidesmanyattractivefeatures,suchasavailability,self-organization,load-balancing,andanonymity.However,P2Pnetworkhascreatedsignificantproblemstonetworkoperatorsbygeneratinglargevolumesofinterautonomoussystem(inter-AS)traffic.FocusingontheBitTorrentswarmingprotocol,thispaperproposesanapproachwhichaimstoreduceP2Pgeneratedinter-AStraffic.Inparticular,theapproachcanreduceinter-AStrafficby50%to70%.Moreover,itcanimprovethedownloadingspeedby60%forthepopulartorrents.Theevaluationshowsthatcontrolledregional-basedcontentsreplicationcaneffectivelyachievethisgoal.Furthermore,theapproachisincrementallydeployable.NetworkregionsinwhichthesystemgetsdeployedcansolvetheirP2Pgeneratedinter-AStrafficproblemsautonomously,i.e.,withoutanyInternetserviceproviders-collaborationandanyrequirement,thesystemcanbedeployedintheentireInternet.
简介:<正>Lookingthroughanyexercisesciencejournalstoday,infactanysciencejournalsincludingmanytopScienceCitationIndex(SCI)journals,onecaneasilyfindexamplesofthewide-spread"p<0.05/significance"abusephenomenon,i.e.,ifthepvaluefromastatistical/hypothesistestislessthan0.05(or0.01sometimes),aconclusionthat"theresults/findingsaresignificant"isthendrawn.Theabuseissoseverethatitisalreadyseriouslythreateningtheintegrityofscientificinquiry.