A multiple objectives optimization approach for QoS-based web services compositions

Ci Wei Lan, Rick C.S. Chen, Addison Y.S. Su, Angus F.M. Huang, Stepehen J.H. Yang, Jen Yao Chung

研究成果: 書貢獻/報告類型會議論文篇章同行評審

4 引文 斯高帕斯(Scopus)

摘要

While a lot of Web Services are available nowadays, Quality-of-Service (QoS) becomes a crucial concern to distinguish alternatives from each other. QoS-based service composition aims to determining optimal combinations among exponential candidates with consideration of overall non-functional performance. In this paper, a multiple objectives optimization approach is proposed for the decision-making process. First, we design a pattern-wise replacement method to derive composite QoS objectives of a given XML-encoded workflow process. According to the process descriptions, the composite QoS objectives will be available by synthesizing non-functional metrics of primitive patterns repeatedly. Second, we employ the ε-Pareto dominance relations to discriminate the overall QoS performance of combinations. Thus user can freely set any desirable ε values to define the precision of service composition's QoS performance. Finally, we present a genetic algorithm to find out the optimal combinations through evolutionary computation. The experimental results have shown that the proposed approach is more efficient and effective in terms of user-defined ε values for different QoS objectives.

原文???core.languages.en_GB???
主出版物標題Proceedings - IEEE International Conference on e-Business Engineering, ICEBE 2009; IEEE Int. Workshops - AiR 2009; SOAIC 2009; SOKMBI 2009; ASOC 2009
頁面121-128
頁數8
DOIs
出版狀態已出版 - 2009
事件IEEE International Conference on e-Business Engineering, ICEBE 2009; IEEE Int. Workshops - AiR 2009; SOAIC 2009; SOKMBI 2009; ASOC 2009 - Macau, China
持續時間: 21 10月 200923 10月 2009

出版系列

名字Proceedings - IEEE International Conference on e-Business Engineering, ICEBE 2009; IEEE Int. Workshops - AiR 2009; SOAIC 2009; SOKMBI 2009; ASOC 2009

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???event.eventtypes.event.conference???IEEE International Conference on e-Business Engineering, ICEBE 2009; IEEE Int. Workshops - AiR 2009; SOAIC 2009; SOKMBI 2009; ASOC 2009
國家/地區China
城市Macau
期間21/10/0923/10/09

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