Research On The Semantic Web Service Publishing And Discovery Based On SAWSDL

Nowadays, Web has become the most important way of informationinteraction. With the development of technologies such as XML, UDDI and so on,Internet begins to transfer the focus from data information interaction to the serviceinteraction, namely the Web service interaction. Since the traditional mechanism ofWeb service interaction can only support the operations based on grammar layer. Inorder to conduct the publishing and discovery more accurately and intelligently,some scholars put forward the concept of semantic Web service, which meansadding semantic information into Web service. W3C has developed some standardsfor semantic Web service, among which SAWSDL is the latest recommendedstandard published in Aug.2007. So how to conduct the interaction of semanticWeb service based on this new standard has become a hotspot research topic in thisfield recently.The existing methods of semantic Web service interaction based on SAWSDLhave some problems, such as the high realizing complexity and the low automaticity,are studied and improved in this paper. At first, some related technologies involvedin the process of semantic Web service interaction are introduced in this paper. Next,an integrated framework for the semantic Web service system based on SAWSDL isproposed. Afterwards, direction by this framework, an improved method ofsemantic Web service publishing and discovering based on SAWSDL is presented.Finally, use a system simulation experiment to prove the validity of new methods.The main tasks of this paper are as followed:(1) Put forward an integrated framework for the semantic Web serviceinteraction based on the analysis of existing methods of semantic web serviceinteraction. The framework can realize the automatic semantic Web serviceinteraction based on SAWSDL, and specifically describe its core components’function and the working mechanism. (2) Give an extraction algorithm of WSDL function information treeaccording to the research on the structure of SAWSDL and WSDL. Then propose aconcept semantic similarity algorithm based on the structure of WSDL functioninformation tree, which can be used in the process of semantic Web servicepublishing based on SAWSDL.(3) Propose a new SAWSDL semantic Web service discovery method basedon a lightweight semantic template for the problem of high realizing complexitywhich exists in the method of original semantic template match. The methodincludes: the structure design of the lightweight semantic template, the generationalgorithm of service request and the filter and match algorithms of semantic Webservice.