基于知识发现的铁路行车安全决策理论和方法的研究

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1、北京交通大学博士学位论文基于知识发现的铁路行车安全决策理论和方法的研究姓名：崔艳萍申请学位级别：博士专业：系统工程指导教师：唐祯敏20051001北京交通大学博士学位论文Abs仃actThe叩erationsafetyensurancesyst锄(osEs)，whichIs0neof血e啪sti埘lponantsubs”tcmsoftlleIuTs(R丑ilwayIntelligentTr如sportationsysteIIls)，becomesahotproblemtostudyHowev钉，也eexistingsystemhasP

2、utitsempllasisOninformatlonizationleVel，aIldtheleVelsofautomationaIldiIltelligenceareV哪low，whichhasblockedthewideuseofthesystems．The础职咖dyinghowtoimpmvetlIeintelligentizationlevelal】dautoma畦ondegreenotonlyhasmeimportantsignificancetosafetydecision，butalsopossessestheprac

3、ticalmeaningtoinlproVethesafetymaIlagementabil时ofrailway仃amit．KDD(KnowledgeDiscoveryiIlDatabase)isr叩idIydeveI叩edin心centyears，whichcanhelpusfindthepoten虹alinfor“1ationinm踮sdataandimprovethedecision—makingprecision．StudyingthesafbtydecisionwiIhKDDcannotonlywidentheapplic“

4、ionfield0fKDD，butalsoirnprovetheintelligence，rcal-timenatureaIldintegmtionofOSES．ItjstlIedeVeloPmentdirectlonofs疵时decisionrcsearch．Thcp叩ertakestIlesafc

5、ydecisionasapplicationback蓼oIlndalldusesKDDtostlldyaccidentemergerlcydisposal，accidcntanalysisandsafbtyeValua60ninOSES

6、．Funhennore，itbringsforwardcorrespondingakorimmsandmeirrealiz嘶。璐．Thereareeightmainaspects，whjcharestLldiedindetailinmedissemtionpresentedasfollowing：(1)Theconc印tands打uct咐ofOsESareanalyzcdindetailandcompletelynisproposedthat血ed柚gerous900dsmoIlitoringsubsystemaIldthcwOrki

7、llgprocessmonitOmgsubsystemsbouldbeaddcdtoOSEStope疵ctnsstnlcmre．Thedevelopment胁dofOSESiselaborated．(2)Thedissertationbringsforwardt}ledecisiontlleoryofrailoperati伽safe够systemandgenemlizesⅡ1esafetydecision-mal(ingproblems．Anewstatisticalpatfcm，gatlleringriskfactordalaill

8、steadofgatIle“ngaccjdentdata，isbroughtf0胛mrd．Finallythesa南tydecisionsystemmodelisbrou曲tfo州ardbasedonKDD．(3)Thedissertationpresentstheknowledgetypeofaccident锄ergencydisposal．ThenmecaserepresentatlonmemodaIlditsiIlf打encemodelhavebeeninVest塘ated．Anobject-商eⅡtedrcpresentati

9、onmemodofaccidentcasesisproposedusingobjecI-orientedideas．Anaccidenteme唱encydisposalmodelhasbeenbuiltaccording