基于语义的企业知识管理系统关键技术研究

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1、武汉理工大学博士学位论文基于语义的企业知识管理系统关键技术研究姓名：罗耀明申请学位级别：博士专业：管理科学与工程指导教师：聂规划20080301(4)企业知识管理系统原型设计在前几章的理论和方法的基础上，建立了企业知识管理系统原型设计框架。该框架由三层结构组成，分别是存储层、知识服务层和用户层。在存储层，引入了WebService和OWL．S技术，解决了企业应用系统之间的异构问题和服务语义描述问题。在知识服务层，依据存储层的语义用户模型和虚拟社区，实现知识共享和协同工作。并以苏州中材建设有限公司为背景，对本文的工作进行理论的验证，为进

2、一步研究语义企业知识管理系统奠定了基础。关键词：知识管理系统，本体，语义用户模型，Web服务，虚拟社区llABSTRACTGoalofknowledgemanagementisthattherightknowledgecanbecapturedbypersoninrighttime，andthenhelppersonsolveprobleminpractice．KnowledgeManagementSystem(KMS)refertoaclassofinformationsystemsappliedtomanagingorganiza

3、tionalknowledge．ThoughmanyfruitweregainedinresearchofKMS，theyhavesomelimitation：(1)Representationofdatalackofsemanticmechanism；(2)Itismoredifficulttogetretrievetask．relevantknowledgeduetolackingofinterestsandtaskinformationdescriptionofUSeL(3)Theydidnotconsidertheidenti

4、ficationofpeer-groupswithsimilarinterestandtask-needs；(钔andthereisproblemofsystemheterogeneityintheenterprise．OntologyandWebServiceareregardedasbasisoftechnologyinthedissertation-Centered‘user’sneed，realizerecommendingknowledge，sharingknowledgeamongenterprisemembersandc

5、ooperationworkbetweenworkersisresearchedinthethesis．Onthebasicoftheoryknowledgeofchapter2，themainresearchesofthedissertationarelistedbelow：First，ExtractingontologyOriented．relationaldatabaseAtpresent，mostofontologiesarebuiltbythehandsofexperts，whichhavemanydisadvantages

6、suchascomplexityoftheproject，strongdependingonexpert，tooslowforbuildingandSOon．Itisaneffectivemethodforontologydevelopmentandresuingtheexistingknowledgetoacquiredomainsemanticinf．o册ationstoredinrelationaldatabase．Thus，amethodofacquisitionsemanticinformationbasedonrevers

7、eengineeringoftherelationaldatabaseandbuildingdomainontologyispresented．Groupsofmappingrulesareputforwardinthemethod．whichincludemaPPlngmapplngtables，mappingcolumns，mappingdatatypes，mappingconstraintsanddatamigration．Accordingtosomemappingrules，domainterms，relationbetwe

8、enthemandinstrancesareextractedfromtherelationalshemes．Finally,domainontologyisbuiltafterexpertsrefineit．Secon