基于QoS约束的改进语义Web服务发现方法  

An Improved Semantic Web Service Discovery Algorithm Based on QoS Constraints

作　　者：许国鹏 马良荔 冯泽波 XU Guopeng;MA Liangli;FENG Zebo(Department of Computer Engineering,Naval University of Engineering,Wuhan 430032;Planning and Development Bureau of Naval Staff,Beijing 100036)

机构地区：[1]海军工程大学计算机工程系,武汉430032 [2]海参规划和编制局,北京100036

出　　处：《计算机与数字工程》2018年第6期1178-1181,1256,共5页Computer & Digital Engineering

摘　　要：随着网络化和信息化的普及,Web服务作为面向服务体系架构的重要实现手段之一发展迅速。目前,网络上实现相同或相似功能的服务越来越多,如何高效、准确、快速地从海量服务集中找到满足用户需求的服务是服务发现领域研究的重点。针对传统服务发现方法效率低的问题,该文提出了一种基于QoS约束的改进语义Web服务发现方法,分阶段匹配筛选,并建立QoS模型,实现候选服务管理。通过实验比较,验证了方法的可行性。该方法能够显著提高服务发现的效率,查全率和查准率较好,为后期实现高质量服务组合方案奠定了基础。With the popularity of network and information technology,Web service develops rapidly,as one of the importantmeans of service-oriented architecture. At present,more and more services with the same or similar functions have appeared on thenetwork. How to find a series of services to meet the needs of users efficiently,accurately and fleetly from the mass services has be-come the focus of service discovery research. Aiming at the low efficiency of traditional service discovery method,this paper propos-es an improved semantic Web service discovery method based on QoS constraints,which selects and filters phasedly,and establish-es QoS model to implement candidate service management. The feasibility of the method is verified by experimental comparison.This method can improve the recall and precision of the service discovery effectively,and lay the foundation for the later realizationof high quality of service composition.

关 键 词：面向服务架构 语义WEB服务 服务发现 相似度 服务质量(QoS) 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]