QoS-Aware Middleware for Web Services Composition
IEEE Transactions on Software Engineering
DiGA: Population diversity handling genetic algorithm for QoS-aware web services selection
Computer Communications
Quality-of-service oriented web service composition algorithm and planning architecture
Journal of Systems and Software
Service selection algorithms for composing complex services with multiple qos constraints
ICSOC'05 Proceedings of the Third international conference on Service-Oriented Computing
Global and local qos guarantee in web service selection
BPM'05 Proceedings of the Third international conference on Business Process Management
Survey A survey on applications of the harmony search algorithm
Engineering Applications of Artificial Intelligence
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Designing of the composite services with desired quality is an interesting challenge of the web service environments. In a QoS-aware web service composition, appropriate services with acceptable quality are selected among several function-equivalent candidate services. The selection is performed in such a way that creates a composition with optimal quality which can satisfy user's quality constraints. In this paper, the problem of QoS-aware selection of web service composition is modeled as an optimization problem. Then the Harmony Search algorithm is adopted to find an optimal or near-optimal composition which can satisfy local and global user's constraints on quality attributes. The proposed method is a rapid and lightweight approach which can be applied to large service compositions with many service candidates.