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  1. Proceedings of the 2007 workshop on Service-oriented computing performance: aspects, issues, and approaches (SOCP '07)
  2. A QoS-based selection approach of autonomic grid services
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A QoS-based selection approach of autonomic grid services
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A QoS-based selection approach of autonomic grid services

Content Provider ACM Digital Library
Author Anselmi, Jonatha Cremonesi, Paolo Ardagna, Danilo
Abstract The Web service composition (WSC) is the process of building an instance of an abstract workflow by combining appropriate Web services that satisfies given QoS requirements. In general, QoS requirements consists of a number of constraints. The selection process requires global optimization and can be formalized as a mixed integer linear programming problem which cannot be solved in polynomial time. However, since the number of submitted workflows is large and the QoS is highly dynamic, the fast selection of composite Web Services is particularly important. In this paper, we present a QoS broker-based framework for Web services execution in autonomic grid environments. The main goal of the framework is to support the broker in selecting Web services based on the required QoS. To achieve this goal, we propose a novel approach: since successive composed Web services requests can have the same task to Web service assignment, we address the Multiple Instance WSC (MI-WSC) problem optimizing simultaneously the set of requests which will be submitted to the system in the successive time interval instead of independently computing a solution for each incoming request. Experimental results show that the proposed algorithm has better performance with respect to existing techniques. Moreover, the qualities of the selected composite Web services are not significantly different from the optimal ones.
Starting Page 1
Ending Page 8
Page Count 8
File Format PDF
ISBN 9781595937179
DOI 10.1145/1272457.1272458
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 2007-06-25
Publisher Place New York
Access Restriction Subscribed
Subject Keyword Web service selection Heuristics Grid Quality of service Autonomic systems
Content Type Text
Resource Type Article
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