摘要
针对协同设计领域本体构建难的问题,建立了基于逆向工程和粗糙集的协同设计领域本体学习模型。通过对产品数据管理数据库进行数据库逆向工程,获取产品数据管理数据库的物理数据模型和概念数据模型,从中提取与产品信息和开发过程有关的实体信息。建立了关系数据库模式到本体的映射规则,并从中学习本体概念和概念之间的关系。同时,根据获得的实体信息从产品数据管理数据库中采集数据构建面向特定主题的知识库,并利用粗糙集理论从知识库所存储的数据中发掘更多的概念和隐含的语义信息。该协同设计领域本体构建方法可以继承企业已有的知识和经验,减少领域专家的依赖,提高本体构建效率,降低本体构建成本。
Aiming at the ontology construction problem in collaborative design domain, an ontology learning model based on reverse engineering and rough sets for collaborative design domain was established. Physical data model and conceptual data model were obtained through Product Data Management （PDM） database reverse engineering, from which the entities related to the information and development process of product were extracted. Mapping rules from relational database model to ontology were established and relationships among entities were learned. Meanwhile, according to the obtained entity information, knowledge databases oriented to specific subject were constructed by acquiring data from the PDM database. More concepts and implicit semantic information were mined from the data stored in these knowledge databases by using rough sets.This method of ontology construction in collaborative design domain inherited the knowledge and experiences, reduced dependence on the domain experts, and it improved the efficiency and decreased the cost of ontology construction.
出处
《计算机集成制造系统》
EI
CSCD
北大核心
2010年第7期1465-1471,共7页
Computer Integrated Manufacturing Systems
基金
国家科技支撑计划资助项目(2006BAF01A41)
国家863/CIMS主题资助项目(2007AA04Z1B1)~~
关键词
协同设计
本体
逆向工程
粗糙集理论
产品数据管理
数据库
collaborative design
ontology
reverse engineering
rough set theory
product data management
database
