On Composite Service Optimization Across Distributed QoS Registries

Authors:
Fei Li;Fangchun Yang;Kai Shuang;Sen Su
Affiliations:
State Key Lab. of Networking and Switching, Beijing University of Posts and Telecommunications, 187#,10 Xi Tu Cheng Rd.,Beijing,100876, P.R. China;State Key Lab. of Networking and Switching, Beijing University of Posts and Telecommunications, 187#,10 Xi Tu Cheng Rd.,Beijing,100876, P.R. China;State Key Lab. of Networking and Switching, Beijing University of Posts and Telecommunications, 187#,10 Xi Tu Cheng Rd.,Beijing,100876, P.R. China;State Key Lab. of Networking and Switching, Beijing University of Posts and Telecommunications, 187#,10 Xi Tu Cheng Rd.,Beijing,100876, P.R. China
Venue:
ICCS '07 Proceedings of the 7th international conference on Computational Science, Part IV: ICCS 2007
Year:
2007

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Abstract

Web service composition is a promising technology to effectively integrate distributed autonomous services in service oriented paradigm. When providing composite services, ensuring user experienced QoS (Quality of Service) in dynamic environment poses a great challenge. In this paper, we present a distributed service selection approach for optimizing composite service with complex structures. The approach does not require a centralized QoS registry to have complete composition logic, but runs on our distributed QoS architecture iteratively. Experimental results show that the approach is efficient and effective for our problem.