This paper presents a semantic metadata description model for grid services, and furthermore, a service relevance based matching algorithm is proposed. Some rea sonable parameters interpreting services characterizatio...This paper presents a semantic metadata description model for grid services, and furthermore, a service relevance based matching algorithm is proposed. Some rea sonable parameters interpreting services characterizations are considered to advise matching process, whose weightiness and service relevance dramatically contribute to the decision making of service matching degree, And what＇s more, matching is secondly executed on the bases of experience adaptation of matching factors, which improves matching degree in gird service retrieve greatly.展开更多
介绍了领域本体的概念,分析了构件自动化组装的阶段和方面,给出了一个基于领域本体的自动化构件组装原型系统(ontology based automated assembly system,OBAAS),介绍了系统整体框架,并对该系统的基于领域本体的构件分类引擎,构件检索...介绍了领域本体的概念,分析了构件自动化组装的阶段和方面,给出了一个基于领域本体的自动化构件组装原型系统(ontology based automated assembly system,OBAAS),介绍了系统整体框架,并对该系统的基于领域本体的构件分类引擎,构件检索匹配和构件接口匹配验证模块的实现思想进行了详细说明,给出了利用朴素贝叶斯分类方法在领域本体基础上对构件的分类的算法、基于领域本体的构件检索和匹配算法,以及部分数据结构的描述。展开更多
文摘现有的Web服务发现方法存在两方面的问题:一方面,采用语法级 Web服务描述语言,因语义信息不足和依赖关键字匹配,容易造成查准率低,影响服务复用和服务组合的相容性.另一方面,采用语义级 Web服务描述语言,因缺乏服务质量描述和灵活、有效的服务匹配算法,而难以保证服务组合的性能和质量.作者首先在系统研究Web服务描述语言的基础上,设计了一种基于服务质量的轻量级Web服务描述语言QWSDL(Qos based Web Serv ice Description Language) ,全方位描述Web服务的功能、行为约束以及服务质量.其次,提出“三层次,五类型”的匹配模型,引进相似函数来度量松弛匹配的服务相似程度.最后,对比实验证明QWSDL和松弛匹配是可行和有效的.
基金Supported by Foundation of High Technology Pro-ject of JiangSu (BG2004034)
文摘This paper presents a semantic metadata description model for grid services, and furthermore, a service relevance based matching algorithm is proposed. Some rea sonable parameters interpreting services characterizations are considered to advise matching process, whose weightiness and service relevance dramatically contribute to the decision making of service matching degree, And what＇s more, matching is secondly executed on the bases of experience adaptation of matching factors, which improves matching degree in gird service retrieve greatly.
文摘介绍了领域本体的概念,分析了构件自动化组装的阶段和方面,给出了一个基于领域本体的自动化构件组装原型系统(ontology based automated assembly system,OBAAS),介绍了系统整体框架,并对该系统的基于领域本体的构件分类引擎,构件检索匹配和构件接口匹配验证模块的实现思想进行了详细说明,给出了利用朴素贝叶斯分类方法在领域本体基础上对构件的分类的算法、基于领域本体的构件检索和匹配算法,以及部分数据结构的描述。
