文献类型：期刊文献

英文题名：A heuristic QoS-aware service selection approach to web service composition

作者：Liu, Dongmei[1]; Shao, Zhiqing[1]; Yu, Caizhu[1,2]; Fan, Guisheng[1]

机构：[1] Department of Computer Science and Engineering, East China University of Science and Technology, Shanghai 200237, China; [2] Shanghai Key Laboratory of Computer Software Evaluating and Testing, Shanghai 201112, China

年份：2009

起止页码：1184

外文期刊名：Proceedings of the 2009 8th IEEE/ACIS International Conference on Computer and Information Science, ICIS 2009

收录：EI(收录号：20094612447560)

语种：英文

外文关键词：Consensus algorithm - Heuristic algorithms - Heuristic methods - Web services

摘要：Web service composition is a flexible way for resource sharing and application integration. However, how to guarantee quality of service composition remains a challenging problem. This paper proposes a heuristic approach to optimizing service selection for composition so that the user's QoS expectation is satisfied. Optimization is enforced for constraints in both local and global level. For each level, a mathematical model is established, and the corresponding heuristic algorithm to solve Web service selection problem by using convex hull frontiers method is proposed. Furthermore, Multiple Criteria Decision Making (MCDM) technique is applied to merge multiple dimensional resources in the heuristic algorithms. Finally, a case study demonstrates feasibility and efficiency of our method. ? 2009 IEEE.