Hybrid QoS-aware semantic web service composition strategies

被引：0

作者：

FangChun Yang

Sen Su

Zhen Li

机构：

[1] Beijing University of Posts & Telecommunications,State Key Lab of Networking & Switching

来源：

Science in China Series F: Information Sciences | 2008年 / 51卷

关键词：

quality of service (QoS); semantic web service; service composition; theory of uncertainties; multi-attribute decision making theory; heuristic algorithm;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Hybrid QoS model which consists of certain and uncertain expressions has strong power of semantic QoS description. For solving the hybrid QoS-aware semantic web service composition problem, this paper presents an Uncertain Multi-attribute decision making based Composition algorithm (UMC). The UMC includes two parts. First, UMC-Core can be used to synthetically evaluate the hybrid service quality information. Second, UMC-DH (Distributed and Heuristic framework for UMC) aims at enhancing the run-time performance of UMC when the problem space increases. The simulation results show that the UMC has lower execution cost, higher approximation ratio and success ratio than other similar approaches.

引用

页码：1822 / 1840

页数：18

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