Since Tim Berners Lee,current W3C chairman,first proposed the concept of Semantic Web,it is becoming a hot topic in computer information processing area.Ontologies are playing a key role in the Semantic Web,extending ...Since Tim Berners Lee,current W3C chairman,first proposed the concept of Semantic Web,it is becoming a hot topic in computer information processing area.Ontologies are playing a key role in the Semantic Web,extending syntactic interoperability to semantic interoperability by providing a source of shared and precisely defined terms.The paper analyzes the requirement of information systems for ontology languages.The current popular ontology languages are also discussed.展开更多
文摘Since Tim Berners Lee,current W3C chairman,first proposed the concept of Semantic Web,it is becoming a hot topic in computer information processing area.Ontologies are playing a key role in the Semantic Web,extending syntactic interoperability to semantic interoperability by providing a source of shared and precisely defined terms.The paper analyzes the requirement of information systems for ontology languages.The current popular ontology languages are also discussed.
基金the National Natural Science Foundation of China under Grant Nos.60673174 90412010 (国家自然科学基金)+1 种基金the National High-Tech Research and Development Plan of China under Grant Nos.2006AA02Z347 2006AA01A115 (国家高技术研究发展计划(863))
文摘提出了一种医学图像网格MedImGrid(medical image grid)基于语义的信息集成方法.基于HL7RIM(health level 7 referenced information model)生成父本体(HL7-RIM ontology),采用混合方式(hybridmeans)建立MedImGrid全局和局部本体的分级结构.结合代理和中间件技术开发了HL7(health level 7)Grid中间件,实现了具有医疗语义解析功能的HL7智能代理,以支持对异构数据源的Grid Service封装与统一访问.基于本体标记表达异构数据模式的语义模型在本体层的相关关联,参照MedImGrid各级本体实现数据源间的语义解析和映射.MedImGrid原型系统基于CGSP2(China grid support platform v2.0),采用了局部与全局语义映射松耦合的构架,其特有的层次结构使得网格环境下跨系统/医院的信息集成更加有效.