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AI Planning for Web Service Automatic Composition Using Petri Nets

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3 Author(s)
Zhijun Ding ; Shandong Univ. of Sci. & Technol., Qingdao ; Junli Wang ; Hong Song

This paper presents an AI planning method for Web service automatic composition using Predicate/Transition (Pr/T) net model. First, based on Web service description of inputs, outputs, preconditions and effects in OWL-S specification, a Pr/T net model is constructed for a service composition plan. Then, this plan is effectively solved by a reachability algorithm of the Pr/T net and a corresponding reachability graph is obtained. Moreover, a regular language of Pr/T net is generated for representing all plan paths of a service composition. Finally, a process model of composite service is extracted after normalization of the plan paths. This method provides a complete solution from modeling AI plan to constructing process model for service composition, so it is helpful for realizing automatic composition and dynamical integration of Web service.

Published in:

Computer Supported Cooperative Work in Design, 2007. CSCWD 2007. 11th International Conference on

Date of Conference:

26-28 April 2007