文档介绍：合肥工业大学硕士学位论文面向知识服务的语义web服务发现研究姓名:李兴东申请学位级别:硕士专业:企业管理及其信息化指导教师:左春荣 20100401 面向知识服务的语义web服务发现研究摘要随着知识需求的不断增加,通过何种方式如何在正确的时间、正确的地点为人们提供所需要的知识,就成了知识服务所要重点研究的问题。语义web服务发现正是解决这个问题的一种方案。语义web技术使得服务发现有了很大的改善,但其研究的重点集中在服务功能的语义匹配上,没有关注用户个性化的需求,忽视了用户、环境和服务提供者的上下文信息对服务发现的影响。本文首先分析了影响web服务发现结果的用户、服务和环境三方上下文因素,并使用本体对上下文建模,把描述语义web服务的OWL—S同上下文本体联系起来;然后参考了经典的语义web服务发现方法及框架,构建了基于上下文的语义web服务发现框架,使得上下文信息可以充分参与到在服务请求、服务发布和服务匹配三个过程中,以满足用户的个性化需求服务;针对单层纯语法和纯语义服务匹配的不足,提出了多层过滤语义与语法相混和的服务匹配方法;改进了Massimo i所提出的服务功能算法,使得服务功能匹配度可以量化表示;对于功能匹配和上下文匹配, 使用混合服务匹配方法(即概念相似度匹配配合词语相似度和参数相似度匹配)来完成。关键词:语义web服务发现;知识服务;上下文;多层混合服务发现 Research on Semantic bServices Discovery for Knowledge Service ABSTRACT With the increasing demand ofknowledge,how to provide therequired knowledge inthe correct time and place with which ways,it e the key question intheresearch ofknowledge service,and semantic web service discovery is an approach forresolving thisquestion. The semantic web technology had made great improvement f10rservice discovery,but lts key research focuses on the semantic match of service function,which did not pay close attention on the personalized neglected the influence ofthe context information ofuser、environments and the service provider forservice discovery. This paper firstly analyzes the influence oftripartite context factor which are the user,the service and the environment for web service discoverv. Constructing the context modeling with the ontology,and linking the context ontology with OWL—S that isused to describe the semantic web service discovery;Then referencing to the classic semantic web service discoverv method and constructing thesemantic web service discovery framework which ISbased on context,it can make context information fully participate thethree process which are the service requesting,service providing and services matching for theindividual needs ofservice user;Contrary pure grammar and the pure semantic service match’Sinsufficiency,proposed the multi-l