应用领域知识系统建模研究

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1、舒类号至￡!墼密级——西北工业大学p811721学校代号!Q鲤!学号Q』!Q!gQ鲢博士学位论文(学位研究生)应用领域知识系统建模研究作者筮亟塑指导教师』!t重堕专业技术职务数握学科(专业)丕筮王捏西北工业大学自动控制系二零零三年十月中国西安AbstractKnowledgeEngineeringstudythegeneralexpressionandmethodsaimingatorganizingknowledgeincomputer,sexinguphighqualityknowledgebases，seekingusefulknowledgeanddealingproblem

2、susingtheknowledge．Nowadays，thetechnologyofinformationprocessingwhichcomputerisusedastoolswentthroughnumericalcalculationstage，numericalprocessingstage，comingintotheknowledgeprocessingstage，KnowledgeEngineeringisnowakeytechnologyintheupcomingknowledgesocietyandhasbecomeamajortechniqueforintbrma

3、tionintegration．Thisthesissystematicallyinvestigatesthesystemcomposingelement，expression．controlling，sharingandmodelingofknowledgebasedsystemonthebasisofanalyzingtheorydevelopingstatusandthebasiccharacteristicsofknowledgeengineeringdomainandtiaeshortcomingthattheknowledgebasedsystemmodelingfram

4、eworkfacesThemainfindingsofthedissertationaresummarizedasfollows：(1)TheVmodeldesignideologyofsystemengineeringwasimplicatedintherequirementdecomposingofknowledgebasedsystem．Theintelligentsystemisdividedintosystemrequirement(requirementontology)，domainconceptionknowledge(conceptionontology)，syst

5、emknowledge(methodontology)，controlknowledgeandexplanatoryknowledgecorresponding“)user’sview,domainconeeptionview,systemresolvingapproachview，systemstructureviewandsystemresolvingtrackview．Thedatastructureoftheseelementsandtherelationshipamongeachotheraredefinitude．(2)Ahierarchicalsystemplannin

6、gschemeisfirstlyputoutbasedonhierarchicalcase-basedpmming(HCBP)forsolvingtherequirementdecompositionofcomplicatedknowledgebasedsystem．Thehighlevelofplanningisforlayingoutaworkingoutline，andthelowlevelofplanningismappedtoconceptionontologyandmethodontologyforreasoningandimplementationSo，itiseffi

7、cientandthebasicknowledgechunkscanbereused．Astateandobjectbasedsimilaritymetricmethodisproposed，andtheprocessofdecomposing，integratingandstud)7ingofHCBPisalsogiven．(3)Therealizingstrategyofontologymaintainingandmanagementarediscus