【作者】 张太华；

【导师】 顾新建；

【作者基本信息】 浙江大学 ， 机械制造及其自动化， 2009， 博士

【摘要】 知识集成技术是制造业信息化中的关键技术之一。本体技术的出现,为知识提供了语义集成的基础,在这种背景下,各种本体建模方法应运而生,模块本体就是其中之一。模块本体是基于知识共享和重用的实际需求,利用本体内在的关联性,通过模块化处理,简化本体应用,集成相关本体,为帮助实现知识共享和重用提供技术支持。论文结合国家高技术研究发展专项基金资助项目“基于本体的面向业务协作的异构系统集成技术研究及应用(项目编号:2006AA04Z157)”、“企业间专利资源协同管理模式及其软件使能技术研究(项目编号:2007AA04Z101)”及国家科技支撑计划基金资助项目“家电行业(企业)的数字化综合集成技术开发与应用(项目编号:2006BAF01A02)”展开研究工作。本文从本体及模块本体的基本理论、方法和技术出发,针对机电类制造企业在知识管理过程中遇到的异构、低查询效率等问题,结合模块本体理论的思想,给出了机电产品知识模块本体的构建方法,重点对机电产品知识模块本体的构建、异构现象及映射、集成、查询与检索进行研究,并在某家电集团公司的信息化工程项目中进行了具体应用。论文主要内容如下:第一章阐述了论文的研究背景、本体与语义Web的关系和产品本体的研究现状;重点分析模块本体在机电产品知识管理中的需求;给出本论文拟解决的问题及意义、论文的主要研究内容及论文的整体框架和结构。第二章主要阐述机电产品知识模块本体的构建方法。对机电产品知识模块本体进行了定义,即机电产品知识模块本体是高度关联性的知识共享词汇及其概念模型的明确形式化规范说明;给出了机电产品知识模块本体的构建原则。重点对机电产品知识的模块划分、本体语言选择和本体构建过程进行了分析。以实例具体说明机电产品知识模块本体的构建过程。第三章主要对机电产品知识模块本体的异构及映射问题进行研究。重点对机电产品知识模块本体中的异构现象进行分析;给出了机电产品知识模块本体映射过程的基本模型;提出了基于结构—语义—特性的机电产品知识模块本体的映射算法来解决机电产品知识的异构问题。第四章在对已有本体集成方法进行比较的基础上,提出基于结构—语义—特性的机电产品知识模块本体集成方法,从结构、语义和特性三个层次对机电产品知识进行集成,并对集成过程的可满足性和一致性进行检验,验证其可行性。第五章对机电产品知识模块本体的查询和检索进行研究。提出用户需求驱动的机电产品知识模块本体查询和检索体系结构;给出了把企业外部用户需求转换成结构化的企业内部用户需求知识模块本体的过程;对机电产品知识模块本体的查询进行结构化描述,给出从机电产品知识模块本体数据模式到XML数据模式的转换方法。第六章根据机电产品知识模块本体的构建、映射、集成和查询等研究,以某家电企业集团公司的储水式电热水器为实例对本文的研究进行应用。第七章对全文工作进行了总结,并对后续研究工作进行了展望。更多还原

【Abstract】 Knowledge integration is a key technology in manufacturing information technologies. The emergence of ontology technologies provides the basis of semantic integration for knowledge. Based on this background, a variety of modeling methods came into being including the module ontology. In order to provide technical support for achieving knowledge sharing and reuse, module ontology boasts its intrinsic relevance to simplify ontology applications and integrates relevant ontologies through the modular processing. The paper research is supported by technological research for heterogeneous system integration and application of business-oriented collaboration based on ontology of the National High-Tech. R&D Program for CIMS of China (No. 2006AA04Z157), research of co-management model and its software enabling inter-enterprise resource co-management model patents and software enabling technology for inter-enterprise patent resources of the National High-Tech. R&D Program for CIMS of China (No.: 2007AA04Z101) and development and application of digital comprehensive integration technology for appliances industry (enterprise) of the National Key Technologies R&D Program of China (No.2006BAF01A02).This paper begins with the basic theory, methods and techniques of module ontology, faces heterogeneous, low query efficiency and other issues in the process of the knowledge management for eletromachanical manufacturing enterprises, and combines the idea of module ontology theory, a construction method of knowledge module ontologies for electromachanical product is given. Construction, heterogeneous phenomena, mapping, integration, query and retrieval of knowledge module ontology of eletromachancal product are mainly researched. And the research is specifically used in information projects of an appliance group company. The dissertation is divided into the chapters as follows:The first chapter is devoted to research background and significance of the thesis, the relationship between standards and ontology, the relationship between semantic web and ontology, and review of product ontology. The requirement of module ontology in management of product knowledge is analyzed. The question raised in the dissertation will be resolved and its significance, main research content and overall framework and structure of the paper are given.The second chapter focuses on the construction method for knowledge module ontology of eletromachanical product. The definition and meaning of knowledge module ontology of eletromachanical product are presented. Construction principle of knowledge module ontology of eletromachanical product is given. Module partition of product knowledge, language selection of ontology construction and building process about knowledge module ontology of eletromachanical product are discussed. An example is used to specify the construction process.The third chapter conducts a specific analysis of the heterogeneous and mapping problems of knowledge module ontology of eletromachanical product. A basic model of knowledge module ontology of eletromachanical product mapping process is proposed. A structure- semantics- characteristics ontology mapping algorithm of knowledge module ontology of eletromachanical product to solve the heterogeneous problems is presented.In the fourth chapter, based on the existing ontology integration methods, an integration method of knowledge module ontology of eletromachanical product on the basis of structure- semantics- characteristics integration is presented. Product knowledge is integrated by the method from the structure, semantic and characteristics levels. Consistency and satisfiability of integration process is tested to validate the feasibility of integration method.The fifth chapter is dedicated to the research of the query and retrieval of knowledge module ontology of eletromachanical product. A query and retrieval framework of knowledge module ontology of eletromachanical product driven by user requirement is presented. A process that changes outside user needs of enterprises into modular ontology of inside user knowledge needs of enterprises is given. The query about knowledge module ontology of eletromachanical product is described through the structured method. A transforming method from the data mode about knowledge module ontology of eletromachanical product to XML data mode is given.In the sixth chapter, according to the construction, mapping, query and integration research about knowledge module ontology of eletromachanical product, storage-type electric water heater products of an appliance group company are used as an example to verify the significance of the research.The last chapter serves as conclusion and outlook. The achievements of the paper are summarized, and the innovations are given. The future research works are put forward to outlook.更多还原