北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2009, Vol. 32 ›› Issue (4): 63-67.doi: 10.13190/jbupt.200904.63.xiah

• 论文 • 上一篇    下一篇

粒子群算法求解Web服务组合中基于QoS的服务选择

夏虹 李增智   

  1. 西安交通大学电信学院计算机系统结构与网络研究所 西安交通大学
  • 收稿日期:2009-03-14 修回日期:1900-01-01 出版日期:2009-08-28 发布日期:2009-08-28
  • 通讯作者: 夏虹

A Particle Swarm Optimization Algorithm for Service Selection Problem Based on Quality of Service in Web Services Composition

Zeng-zhi Li   

  • Received:2009-03-14 Revised:1900-01-01 Online:2009-08-28 Published:2009-08-28

摘要:

针对现有web服务组合中服务选择技术的不足,提出了一种基于粒子群优化算法的多
目标优化策略,用于解决web服务组合中基于服务质量(QoS)的服务选择全局最优化问题.
将web服务选择全局最优化问题转化为一个带QoS约束的多目标服务组合优化问题,利用多目
标粒子群算法的智能优化原理,通过同时优化多个QoS参数,最终产生一组满足约束条件的P
areto最优解. 实验结果证明了该算法的可行性和有效性.

关键词: Web服务, 服务组合, Qos, 粒子群算法

Abstract:

A global optimal algorithm based on particle swarm optimization (PSO) is presented to resolve services selection with quality of service (QoS) global optimal in web service composition. This method will transform a web service selection global optimal problem into an optimization problem based on web service QoS. This algorithm is utilized multiobjective particle swarm optimization intelligent optimization principle to produce a set of optimal Pareto with constraint principle by optimizing multi QoS parameters simultaneously. Experiments show the feasibility and efficiency of this algorithm.

Key words: Web Service, service composition, Qos, particle swarm optimization