基于P2P的分布式中文搜索引擎的應(yīng)用研究.pdf

1、分類號UDC密級學(xué)位論文指導(dǎo)教師姓名：蓬盤型夔堡直昌太堂筮盛王擺堂睦申請學(xué)位級別：亟專業(yè)名稱：讓簋扭廛旦堇查論文提交日期：墊墮堡她旦論文答辯日期：2Q!!生Q!旦旦學(xué)位授予單位和日期：直昌盔堂；!Q生旦墾答辯委員會主席：塑墜塾評閱人：i嘲乞耘龜?shù)?006年月日AbstractAbstractThetechnologiesofP2Pandaboutsearchenginenowarescientificresearchacademyand

2、company’SresearchhotspotTheP2P’Sdistributednetworkstructurepossessesexpansibility，haleness，loadequilibriumandothertraitComparewithtraditionaldistributedsystem，itpossessesunexampledsuperiorityItnetworktopstructureisfitfor

3、dealingwiththedistributedinformationsearchWiththedevelopmentofintemet，asinternetusers’neededinformationsearchtool，thesearchenginegetsmoreandmoreusersrecognitionBecausetheinternalinternetdevelopsSOfast，ChineseusersSOarAnd

4、researchersgetalongwithresearchofcomputertonaturelanguagecomprehension，itmakessearchenginedeveloptoChinesesearchengineAtpresent，manysearchenginesstructureisconcentrative：getwebpagesfromintemet，parseanddealthepagesinforma

5、tion，getindexinformation，thenputtheindexinformationintoindexdatabase，theindexdatabaseiScentrallystoredonewebstation，userscommitqueriesandgetsearchresultbylogonthewebstationTheconcentrativesearchengineserver’SloadiSoverwe

6、ightIfagreatlotofuserslogontheservertequestsearchserviceatthesametime，theserverCan’tresponseintimeanditcarlmakenetworkcongestionTheconcentrativesearchengine’Ssearchcapabilityisquitelimited：itcan’tsearchinformationdeeplya

7、ndwidelySesearchersputforwardstrategytoconstructthedistributedsearchengineAtfirstthispapersummarizesP2PtechnologyanditsbackgroundandintroducesP2Pnetworkmodel，P2Psearchingthechnology，etcfacetsThenthispaperintroducesbriefl

8、ysearchengineandnarratessearchenginesystem’Scompositionandtheory，searchengine’Ssort，capabilityguideline，developmentdirection，distributedsearchengine，contrastsandanalysessearchengine’SinformationsearchesmodelToconquerconc

9、entrativesearchenginedrawback，thispapercombinesearchengineandP2Ptechnology，thenbringsforwardtheP2P—baseddistributedChinesesearchengineTheP2PbaseddistributedChinesesearchengineadoptsNetShotroutealgorithmassystemroutealgor

10、ithm：ThispaperbringsforwardtreeshapebasedwordwarehousetosplitChinesewords，theChineseSegmentationoptimizedmethodmakestraditionalmatchingalgorithmefficiencytogetquietlyadvanceitcombinesXMLtoimplementsviablesolutionforChine

11、seSegmentation：ThisPaperadoptsXMLbasedinvertedindexalgorithmbasedonBtreetobuildtheindextosolvethetraditionalpositiveindexandinvertedindexrealtimeupdatingdrawbackTheP2P—baseddistributedChinesesearchengineconstructssearche

12、ngineonP2Pdistributednetworkstructure，andmakesuseofP2P’Sgooddistributedtraittoputsearchenginetodevelopfromconcentrativestructuretodistributedstructure，makessearchenginesearchusers’useableinfoIrmationfrominternetdeeplyand