A Structured P2P-based Approach to Semantic Web Services Publication and Discovery

Semantic Web Service (SWS) technology is developed to overcome the shortcomings of traditional standards, such as WSDL and UDDI, and enable maximal automation in all aspects of Web Service provision and use. But great improvement of capability in SWS-based service discovery is still desired. To address this issue, we present a distributed approach for Semantic Web Service publication and discovery by leveraging structured P2P technology. In this paper, first, we introduce a semantics-based service matching method. Then, in order to apply the method to our approach, we propose several concepts and algorithms. Next, we present a method to publish SWS and implement it as a SWS registry. Finally, we design an approach to organize the nodes with the registry into a structured P2P network to cooperatively publish and discover SWS. We also conduct experiments to validate our approach and the results demonstrate its scalability and effectiveness.