摘要
为解决产品数据管理系统中知识难以被发现和重用的问题,提出基于领域本体的设计知识检索技术。利用"领域本体—索引知识—数据资源"三层映射结构表达设计知识,形成以领域本体为语义模型和以索引知识为引导的设计知识体系。提出了基于语义的知识检索方法,对设计问题进行语义解析,转换成本体概念集,利用向量空间模型的相似度算法,在检索词元权重中引入语义关系权重,在索引知识词元权重中引入知识域权重,最终匹配符合设计人员检索意图的设计知识。以飞航导弹总体方案设计为例验证了知识检索技术的可行性。
To solve the problem that knowledge couldn＇t be discovered and reused easily in product data management system,a design knowledge retrieval technology based on domain ontology was proposed.A ＂domain ontology-index knowledge-data resource＂ three-layer mapping structure was put forward to represent design knowledge.The design knowledge system was formed consisting of domain ontology as semantic model and index knowledge as searching index.A new knowledge retrieval method based on semantics was put forward.Design problem was analyzed based on semantics and transformed into ontology concepts.To match knowledge which satisfied designer＇s search intentions,a text similarity computation based on vector space model which introduced relation weight to those ontology concepts and domain weight to words of knowledge text was proposed.Finally,an example of cruise missile＇s overall design was provided to reveal the feasibility of retrieval technology.
出处
《计算机集成制造系统》
EI
CSCD
北大核心
2011年第2期225-231,共7页
Computer Integrated Manufacturing Systems
关键词
产品设计
领域本体
知识表达
知识检索
飞航导弹
product design
domain ontology
knowledge representation
knowledge retrieval
cruise missile
作者简介
余旭（1987-），男，福建莆田人，硕士研究生，研究方向：产品设计知识管理，E—mail：yuxu236@163．com；
＋刘继红（1966-），男，湖北老河口人，教授，博士，博士生导师，研究方向：复杂产品工程、数字化设计与制造、知识管理与知识工程等，E—mail：ryukeiko@buaa．edu．cn；
何苗（1981-），男，重庆人，博士研究生，研究方向：现代集成制造系统、知识管理等。
