Kewu Sun

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Quality-of-Service (QoS) performance guarantee for service-oriented systems (SOS) has become a critical problem. With the increasing number of offered services comes the challenge of efficiently building large-scale SOS to meet the required QoS criteria. Optimization of QoS-driven semantic Web service composition is known to be NP-hard. We address the(More)
—We propose a service-oriented web application framework named iWeb, which enables web application adap-tive to both context and QoS. In iWeb, a context model is established and context information is collected systematically according to the context model. An innovative service selection approach based on context and QoS is proposed in the framework as the(More)
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