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作者单位:1. Department of Electronics & Computer Engineering, Indian Institute of Technology, Roorkee, 247667 India2. Department of Mathematics and Computer Science, University of Perugia, 062123 Perugia, Italy
刊物类别:Computer Science
刊物主题:Artificial Intelligence and Robotics Computer Communication Networks Software Engineering Data Encryption Database Management Computation by Abstract Devices Algorithm Analysis and Problem Complexity
出版者:Springer Berlin / Heidelberg
ISSN:1611-3349
文摘
Web services composition based on quality of services have been recently studied by several researchers. Service composition with minimum communication cost has been well studied for service overlay networks. However there are very few optimization algorithms available which considers more than one objective. Finding a solution that optimizes all the objectives is nontrivial. In multi-objective optimization problem, the solution can be given in such a way that it fulfills the requirements of the user without making much sacrifice from the optimal solution. In this paper we would like to address the problem of dynamic services composition in an existing framework by considering two QoS parameters that are communication cost and service cost. For this we suggest an algorithm. Some experimental results are also reported that validate the algorithm.