An Approach to Web Services Selection for Multiple Users

An Approach to Web Services Selection for Multiple Users
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多用户Web服务选择方法

DOI:
10.1109/access.2017.2722228
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发表时间:
2017-06
期刊:
影响因子:
3.9
通讯作者:
Cai Kai-Yuan
Cai Kai-Yuan
中科院分区:
计算机科学3区
文献类型:
--
作者:
Zhu Wenlong;Yin Beibei;Gong Siqian;Cai Kai-Yuan

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为多个用户选择Web服务是实现Web服务应用程序高效操作的一个重要方面。它的目的是选择最优解决方案,其中web应用程序工作流中的每个抽象web服务根据其对工作流的QoS要求,绑定到其相应的具有最优服务质量(QoS)的具体web服务。有很多方法可以解决这个问题,但是它们没有考虑到每个用户不同的QoS需求,或者使用这些方法的开销大得令人望而却步。在本文中,我们提出了一种利用先进的全多项式时间逼近方案来计算Pareto最优集的方法来显著提高web服务选择的效率,其中每个解都不受其他解的支配。此外,该方法采用人工蜂群算法从Pareto集合中为每个用户选择最优解,进一步降低了算法开销。实验结果表明了该方法的有效性。
Web service selection for multiple users is an important aspect for achieving efficient operations for web service applications. Its aim is to select optimal solutions, in which each abstract web service in the workflow of a web application is bound to its corresponding concrete web service with the optimal quality of service (QoS), for all users based on their QoS requirements for the workflow. There are a lot of approaches to resolve this problem, but they do not consider each user’s different QoS requirements or have prohibitively large overhead for using these approaches. In this paper, we present an approach to significantly improve the efficiency of web service selection by the advanced a-fully polynomial time approximation scheme to calculate the Pareto optimal set, where each solution is not dominated by others. Additionally, this approach reduces its overhead further by adopting artificial bee colony algorithm to select an optimal solution from the Pareto set for each user. Experimental results are presented to show the efficiency of this approach.
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