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
中图分类号:
陈彦萍, 李翔. 基于QoS关联的Web服务组合算法[J]. 计算机工程, 2011, 37(18): 50-52.
CHEN Pan-Ping, LI Xiang. Web Service Composition Algorithm Based on QoS Relation[J]. Computer Engineering, 2011, 37(18): 50-52.