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1、1000-9825/2004/15(09)1375©2004JournalofSoftware软件学报Vol.15,No.9∗PeerIS:基于Peer-to-Peer的信息检索系统1,2+1311凌波,陆志国,黄维雄,钱卫宁,周傲英1(复旦大学计算机科学与工程系,上海200433)2(中国浦东干部学院,上海200233)3(新加坡国立大学新加坡-麻省理工联盟,新加坡)PeerIS:APeer-to-PeerBasedInformationRetrievalSystem1,2+1311LINGBo,LUZhi-Guo,NgWee-Siong,QIANWei-Ning,ZHO
2、UAo-Ying1(DepartmentofComputerScienceandEngineering,FudanUniversity,Shanghai200433,China)2(ChinaExecutiveLeadershipAcademyPudong,Shanghai200233,China)3(Singapore-MITAlliance,NationalUniversityofSingapore,Singapore)+Correspondingauthor:Phn:+86-21-65643024,E-mail:lingbo@fudan.edu.cn,http://w
3、ww.cs.fudan.edu.cn/wplReceived2003-11-29;Accepted2004-02-03LingB,LuZG,NgWS,QianWN,ZhouAY.PeerIS:Apeer-to-peerbasedinformationretrievalsystem.JournalofSoftware,2004,15(9):1375~1384.http://www.jos.org.cn/1000-9825/15/1375.htmAbstract:Inthispaper,theemergingP2Pcomputingisfirstbrieflyintroduce
4、d,includingitsdistinctfeatures,potentialmeritsandapplications,andtheproblemsfromwhichtheexistingP2P-baseddatasharingsystemsaresufferingarefurtherpointout.Toaddresstheseproblems,theconceptofP2P-basedinformationretrievalisproposed,whichcannotonlyexploitthepotentialmeritsofP2Ptoovercomethepro
5、blemsoftraditionalinformationretrievalsystems(e.g.,lackingofscalability),butalsoachievefullysemanticretrievalandsharinginthecontextofP2Psystems.Basedontheideology,PeerIS,aP2P-basedinformationretrievalsystemisdeveloped.Then,thearchitectureofPeerISanditspeers’componentsarepresented.Thekeyiss
6、uesofimplementationaredescribed,includingcommunication,semantics-basedself-reconfiguration,queryprocessingandself-adaptiveroutingmechanisms,arealsodescribed.Finally,anexperimentalstudyisusedtoverifytheadvantagesofPeerIS.Keywords:peer-to-peer;informationretrieval摘要:介绍了对等计算(peer-to-peer,简称P2
7、P)的特征、潜在优势和应用范围,指出了当前P2P数据共享系统∗SupportedbytheNationalNatureScienceFoundationofChinaunderGrantNo.60373019(国家自然科学基金);theHighEducationDoctorialSubjectResearchProgramofMoEofChinaunderGrantNo.20030246023(国家教育部博士点基金资助);theScienceandTechnologyCommissionofShanghaiMuni
