Abstract:

With the increase of the number of Web services on the Internet, how to find a web service that can meet users’ requirements quickly and accurately has become a problem to be solved. Currently, many semantic web service methods are based on IO matching .They use other ways if semantic matching is failed. However, the accuracy of semantic web service discovery based on IO matching purely is not high enough. Semantic web service discovery algorithm is proposed, which is based on constraint extraction and structure analysis. It consists of two parts. Firstly, the conceptual semantic matching based on constraint extraction is carried out. Secondly, it uses the algorithm based on structure analysis while matching is failed. owlstc2.0 is used as test set to validate this method . Experimental results show that this method can improve the accuracy of service discovery effectively.

Key words: semantic web;semantic web discovery;accuracy;constraint extraction;structure analysis