Abductive planning approach for automated web service composition using only user specified inputs and outputs

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Date

2009

Author

Kuban, Esat Kaan

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In recent years, web services have become an emerging technology for communication and integration between applications in many areas such as business to business (B2B) or business to commerce (B2C). In this growing technology, it is hard to compose web services manually because of the increasing number and compexity of web services. Therefore, automation of this composition process has gained a considerable amount of popularity. Automated web service composition can be achieved either by generating the composition plan dynamically using given inputs and outputs, or by locating the correct services if an abstract process model is given. This thesis investigates the former method which is dynamicly generating the composition by using the abductive lanning capabilities of the Event Calculus. Event calculus axioms in Prolog language, are generated using the available OWL-S web service descriptions in the service repository, values given to selected inputs from ontologies used by those semantic web services and desired output types selected again from the ontologies. Abductive Theorem Prover which is the AI planner used in this thesis, generates composition plans and execution results according to the generated event calculus axioms. In this thesis, it is shown that abductive event calculus can be used for generating web services composition plans automatically, and returning the results of the generated plans by executing the necessary web services.

Subject Keywords

Computer enginnering., Computer Hardware.

URI

http://etd.lib.metu.edu.tr/upload/12610452/index.pdf
https://hdl.handle.net/11511/18414

Collections

Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

E. K. Kuban, “Abductive planning approach for automated web service composition using only user specified inputs and outputs,” M.S. - Master of Science, Middle East Technical University, 2009.