A Global Optimization Method of Web Services Composition Based on QoS
Fan Yan · 2012
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 op- timal 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 con- straints. 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.