pfusion a p2p architecture for internet-scale content-based search and retrieval27899

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1、1pFusion:AP2PArchitectureforInternet-ScaleContent-BasedSearchandRetrievalDemetriosZeinalipour-Yazti,Member,IEEE,VanaKalogeraki,Member,IEEE,andDimitriosGunopulos,Member,IEEEAbstract—TheemergingPeer-to-Peer(P2P)modelhasbecometheirdecentralizednatureallowseasyadditions,updates,in-averypowerfulandattr

2、activeparadigmfordevelopingInternet-creasedstorage,andoffersfault-tolerantpropertiesthroughthescalesystemsforsharingresources,includingfilesanddocu-useofreplicationandcaching.Inaddition,recenteffortsbasedments.Thedistributednatureofthesesystems,wherenodesoncaching[22]andotherheuristics[50]havesigni

3、ficantlyim-aretypicallylocatedacrossdifferentnetworksanddomains,inherentlyhinderstheefficientretrievalofinformation.InthisprovedthequeryroutingprobleminunstructuredP2Psystemspaperweconsidertheeffectsoftopologically-awareoverlayaswell.Animportantproblemthatsuchsystemshavenotfullyconstructiontechnique

4、sonefficientpeer-to-peerkeywordsearchconsidered,ishowtheheterogeneityoftheunderlyinginfras-algorithms.WepresentthepFusion(PeerFusion)architecturetructureaffectstheperformanceoftheinformationretrievalthataimstoefficientlyintegrateheterogeneousinformationthatalgorithmsimplementedontopofthesenetworks.T

5、heP2Pisgeographicallyscatteredonpeersofdifferentnetworks.Ourapproachbuildsonworkinunstructuredpeer-to-peersystems,infrastructurecanencompassresourceswithdifferentprocess-andusesonlylocalknowledge.Ourempiricalresults,usingtheingandcommunicationcapabilities,locatedacrossdifferentpFusionmiddlewarearc

6、hitectureanddatasetsfromAKAMAI,geographicalareas.Asaresult,retrievingdocumentsoversuchNLANRandTREC,showthatthearchitectureweproposeisInternet-scaleenvironmentsissubjecttogreatervariationsduebothefficientandpractical.tounpredictablecommunicationlatencies,excessiveresourceIndexTerms—InformationRetrie

7、val,Peer-to-Peer,Overlayconsumptionandchangingresourceavailability.ConstructionAlgorithms.Inthispaperwefocusontechniquesfordistributedkeywordsearch,thatis,weaimtofindthedocumentsthatcontainagivensetofquerytermswhe