期刊名称：International Journal of Computer Science Issues
印刷版ISSN：1694-0784
电子版ISSN：1694-0814
出版年度：2011
卷号：8
期号：3
出版社：IJCSI Press
摘要：Web services are dynamic applications that are published over the network to help in data exchange between systems and other applications. The selection of these web services is an important part of Web service composition. As the number of Web services on the internet increase, the need for finding the exact web service that matches the user's request also increases. So ranking of web services is required in order to find the right web service. Earlier methods of ranking involved using a matrix to rank the web services by using their QoS property. But in many cases it might be tedious to define the QoS values accurately. So a fuzzy logic was proposed to deal with the improper QoS constraints. Many approaches have been proposed both in Quality based and fuzzy based ranking. In this paper we take the advantages of both the methods and propose a new ranking method which is a hybrid of matrix ranking method and QoS based fuzzy ranking method. We also review the existing works done and summarize the benefits and conclusions of the presented ideas.
关键词：web services; matrix; fuzzy; entropy; Quality of Service
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