Service Composition Algorithm Based on Ontology Semantic

With the continuous development of Internet technology, it is necessary to composite already existing Web services together to complete the complex functions. This paper researches Web Service composition on semantic similarity and QoS. On semantic similarity, we propose a Web services composition algorithm based on semantic similarity of ontology, give a method of calculating the semantic similarity, compute semantic similarity of parameters and match web service by comparing it with threshold value of semantic similarity. At the same time, this method solves the problems of multiple inputs and multiple outputs. Experimental results show that this method is efficient in terms of time.