基于內(nèi)容的發(fā)布-訂閱匹配相關(guān)技術(shù)研究.pdf

1、長(zhǎng)沙理工大學(xué)碩士學(xué)位論文基于內(nèi)容的發(fā)布訂閱匹配相關(guān)技術(shù)研究姓名：鄧婷婷申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：計(jì)算機(jī)應(yīng)用技術(shù)指導(dǎo)教師：朱樹(shù)人胡寧?kù)o20080301ABSTRACTTheapplicationrangeandscaleofdistributesystemhasbeenchangedconsiderablywiththefastdevelopmentofInternetRecentlythedistributeapplicationmaye

2、xpandthousandsofmillionsofnodes，andalsoincludemoreandmoremobileentitiesTheseentitiesexistintheworldwidely；theirlocationandbehaviormayhavealotofvarietyduringtheperiods，theyneedtocorrespondandcooperatetoachieveacollectivep

3、urposeTheserestrictionshowsthatweneedaflexiblecommunicationmodel，reflectingdynamicandloosecouplinghypostasisoftheapplicationThecontent—basedpublish／subscribeconsidersasthebestsystemstructure，andbringwidelyattentionandinv

4、estigateThepublish／subscribemodelbasedonevent—alternatehasloop—couplingabilitiesinspace，timeandsynchronization，andalsoprovidesone—to—manyandmany—to—manyasynchronouscommunicationmodelWedoalotofstudyinmatchingarithmeticwhi

5、chisoneofthekeytechnologiesinpublish／subscribesystem，andthemaincontentisfollowingbelow：Firstweexpatiatedforthebasicdatamodelofeventandsubscribelanguageaboutpublish／subscribesystem，andalsointroducedsometypicalroutingstyle

6、inpublish／subscribesystem，includingroutingbasedonglobalknowledge，filteridentityfiltercovering，filtermerging，andusingofadvertisementsAfterthenitdiscussedsometypicalattributefilterdefinedconjunctiveoffilters，coveringofconj

7、unctivefilters，identityandoverlappingofconjunctivefiltersandmergingofconjunctivefiltersformallyItputforwardamutil—indexmatchingarithmetic，discussedthestructureprincipleofmatchingandachievesitItcanceledtypicalcounterandus

8、edthemutil—indexmatchingalgorithmtofindsuitableeventsquicklyreducedrepeatmatching，andthenincreasedthecapabilityofsystemeffectivelyLastweputforwardafuzzymatchingarithmeticsupportingsubscriptioncovering，constructedthefuzzy

9、vectors，andbuiltthematchingrulesItalsodefinedthemembershipfunctionofattributesandthethresholdtojudgewhetherthematchingisSuccessornot，implementedthefuzzymatchingarithmeticanddidtheexperimentWeneednottodoprecisionmatchingf