计算机工程 ›› 2011, Vol. 37 ›› Issue (18): 50-52.doi: 10.3969/j.issn.1000-3428.2011.18.017

• 软件技术与数据库 • 上一篇    下一篇

基于QoS关联的Web服务组合算法

陈彦萍,李 翔   

  1. (西安邮电学院计算机学院,西安 710121)
  • 收稿日期:2011-03-22 出版日期:2011-09-20 发布日期:2011-09-20
  • 作者简介:陈彦萍(1979-),女,副教授、博士、CCF会员,主研方向:服务计算,云计算;李 翔,学士
  • 基金项目:
    国家自然科学基金资助项目(60803162);陕西省自然科学基金资助项目(SJ08-ZT15);陕西省教育厅科学研究计划基金资助项目(11JK1061);中央高校基本科研业务费专项基金资助项目(XJJ 20100052)

Web Service Composition Algorithm Based on QoS Relation

CHEN Yan-ping, LI Xiang   

  1. (School of Computer Science, Xi’an Institute of Post and Telecommunications, Xi’an 710121, China)
  • Received:2011-03-22 Online:2011-09-20 Published:2011-09-20

摘要: 为反映Web服务组合过程中服务类之间的关联性和客户对服务非功能属性的偏好,以及服务调用过程中不同服务质量(QoS)属性之间的内在关系,提出基于QoS关联的Web服务组合决策算法。在评价服务组合优劣程度的过程中,考虑服务类在QoS属性上的关联关系,对QoS数据进行统一规格化和综合评估。实验证明,该算法拥有较好的执行效率和稳定性,并且选择结果较优。

关键词: Web服务, 服务质量, 服务组合, 不确定理论, 用户偏好

Abstract: In order to represent the relation between different Web service classes, service requester’s preference as well as internal relation between different Quality of Service(QoS) factors in Web service composition, this paper proposes a determination algorithm of Web service composition based on QoS relation. And in evaluating the quality of service composition, it can consider relations on QoS properties between different service classes to some extend. Result shows algorithm holds good executive efficiency, stability as well as outstanding selecting result.

Key words: Web service, Quality of Service(QoS), service composition, uncertain theory, user preference

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