一种基于语义的多社区的Web服务查找策略  

A multi-community policy of Web service discovery based on semantics

作　　者：吕计红[1] 鲁男[1] 申德荣[1] 于戈[1] 

机构地区：[1]东北大学信息科学与工程学院,辽宁沈阳110004

出　　处：《沈阳工业大学学报》2004年第3期316-319,共4页Journal of Shenyang University of Technology

基　　金：教育部博士点基金(20030145029);国家863项目(2003AA414210)资助

摘　　要：为了提高Web服务查找的性能,提出了一种基于语义信息的多服务社区的查找机制.根据语义信息将整个服务社区空间划分成若干个概念域,每个域由一个域代理管理,负责记录整个域内所有的服务信息和执行领域内的查询.在每个域代理内可注册若干个本地代理,负责接受用户的查询请求和完成查询.域代理级和本地代理级的查询操作中都可利用语义信息,实现精确到操作级的服务定位和一定程度的模糊查询,从而有效地提高Web服务匹配的精确度和查询效率.This paper presents an enhanced mechanism to improve the performance of a web service discovery system.The web service space is divided into several concept domains,each of which has a domain broker.A domain broker (DB) stores all public service information in the system,responses the discovery requirement in the domain,and manages the local brokers registered in it.A local broker (LB) is used to accept the users' discovery requests and fulfill discovery requirements.All operations in LBs or in DBs are based on the semantic information,so as to locate the services precisely in operation levels and support some fuzzy matching.This mechanism effectively improves the accuracy and the efficiency of the discovery of web services.

关 键 词：服务查找 WEB服务合成 语义信息 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]