Browsing by Author "Li, Yinsheng"

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A fuzzy model for selection of QoS-aware web services
(2006)
Wang, Ping
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Chao, Kuo-Ming
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Lo, Chi-Chun
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Huang, Chun-Lung
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Li, Yinsheng
With the increasing popularity of employing web services, quality of service (QoS) measure of service becomes a significant concern for service consumers and providers. However, current technologies are poor to identify the relative importance of non-functional QoS criteria for web services and they are not fitting well for selecting the appropriate service. In this paper, a new scheme for right selection of QoS-aware of web services which exploits fuzzy logic to locate and select the right service based on customer\'s preference or sath faction degree. The aim is to compute both finctional and non-functional weightings of QoS criteria and to assist customers to make the right choice.for web services.
An efficient transaction commit protocol for composite web services
(2006)
Younas, Muhammad
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Chao, Kuo-Ming
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Lo, Chi-Chun
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Li, Yinsheng
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資訊管理與財務金融系註：原資管所+財金所
Transaction commit protocols have widely been used to ensure the correctness and reliability of distributed applications. This paper investigates into the performance of such protocols within the context of composite web services. It presents a new commit protocol which aims to improve the performance of composite web services transactions. The proposed protocol is tested through various analytical experiments. These experiments reveal that the proposed protocol significantly improves the performance in committing a composite web service transaction. The experiments also exhibit the processing overhead of the proposed protocol in the case of unsuccessful execution of a web service transaction.