A Global Optimization Method of Web Services Composition Based on QoS
نویسنده
چکیده
As a new application pattern, knowledge service has been rapidly developed in recent years. How to integrate the existent knowledge services to form a newly complex service is a popular research area. This paper presents a framework to support dynamically service composition. And then we focus on the global optimal model of knowledge services composition. The essence of the model is that the problem of dynamic service selection with QoS global optimal is transformed into a liner integer programming with QoS constraints. At last, a set of optimal service composition is produced by means of optimizing objective function, which fulfills requires of users and improves the dynamical and flexible capability of service composition.
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