復雜網絡中的病毒與謠言傳播研究

1、北京交通大學碩士學位論文復雜網絡中的病毒與謠言傳播研究姓名：倪濤申請學位級別：碩士專業(yè)：信息管理指導教師：張真繼201207j豎立交垣厶堂亟堂位途塞△旦曼至B△￡IABSTRACTABSTRACT：ThespreadofvirusandrumoraretwomainandcommonpropagationbehaviorsoncomplexnetworkNomatterbiologicalvirusorcomputervirusesha

2、vecausedgreatlosstothehumansocietyandcomputernetworkAndinthefuture，theywillcontinuetoexistinthesesystemsThespreadofrumoralsothreatenthesocialstabilityInrecentyears，theresearchofcomplexnetworkbringsnewideasandmethodstothe

3、researchofspreadofvirusesTheresearchofvirusspreadinthecomplexnetworkhasrealisticmeaningsforpeopletomakevirusdefenseandcontrolstrategiesThisthesissummarizedthebasictheoryofthespreadofthevirusmodelandbasicconceptofcomplexn

4、etworkDetailedanalysisofthevirustransmissionmechanismisintroducedespeciallythedynamicsmechanisminthecomplexnetworkandthespreadcriticalvalueinbothinuniformandnouniformnetworkThemainresearchresultsofthisthesisareasfollows：

5、1Intherealworldtherearesomefactorsthatmanymodelsdon’tconsideraffectthespreadofthevirusOneofthemisfeedbackmeehanismwhichCanproduceagreaterinfluenceThroughtheanalysisintwodifferentnetworks，wefoundthatfeedbackmechanismCan’t

6、changethespreadcriticalvalueinuniformnetworkbutCaneffectivelyreducethenodeinfectiondensitywhenthesystemreachtosteadystateSOitcanreducethelosscausedbythespreadofthevirusAndwegotthesimilarresultinnouniformnetworkSofeedback

7、mechanismistheeffe：cfivewaytocontrolthespreadofthevirusWeshouldimproveinformationsharingrateandtransmissionrateaspossibleaswecan2ThespreadofrumorissimilarwiththespreadofthevirusBasedonpreviousstudies，thethesisanalysisrum

8、orsspreadcharacteristicsontwodifferentnetworksInanewmicrobloggingnetworkrumorspreadmodel，wefoundthatthefinalstateofthemodelhascloserelationshipwiththeeffectivespreadratebetweennetworkmembersandthetopologicalstructureofth

9、emicrobloggingnetworkAccordingtotheresultofthemodel，weputforwardcorrespondingpreventionandcontrolstrategyFinallythisthesismakesaconclusionoftheworkhavedoneandpointsoutsomeshortcomingswhichneedfurtherexplorationandresearc