基于QoS的语义Web服务选择  

Semantic Web Service Selection Based on QoS

作　　者：马力[1] 邱志洋 陈彦萍[1] 赵璟[1] MA Li QIU Zhi-yang CHEN Yan-ping ZHAO Jing(School of Computer Science, Xi＇ an University of Posts and Telecommunications,Xi＇an 710061, China)

机构地区：[1]西安邮电大学计算机学院,西安710061

出　　处：《计算机科学》2017年第3期226-230,246,共6页Computer Science

基　　金：2016年度陕西省自然科学基础研究计划-面上项目(2016JM6085);2014年西安市科技计划项目(CXY1437(8));西安邮电大学科研计划基金资助

摘　　要：针对传统Web服务选择方法缺乏语义信息支持,不能满足用户准确需求的问题,将量化的QoS属性作为启发信息,将Web服务组合问题转化为与或图搜索问题,引入AO*算法进行Web服务选择。仿真结果表明,所提方法对于Web服务组合问题是有效的,同时提高了组合效率。Focused on the problems of semantic information lacking and the unappeasable user requirements of the tra- ditional methods for Web service selection, the quantitative QoS properties were used as the heuristic information, and the Web service composition was transformed into the problem of searching and-or-graph in our work. The AO＊ algo- rithm was applied to find the optimal Web service last. The simulation results show that the proposed method is effec- tive for the Web service composition and the composition efficiency is enhanced too.

关 键 词：语义WEB服务 服务质量 与或图 AO＊算法 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]