The Research On Semantic Web Service Ontology Discovering Based On Classificatory Querying

Semantic Web and Web service are the two important trends which are emerging in the World Wide Web(WWW).The confluence of Web services and the Semantic Web gives birth to another new technology—Semantic Web Services.The Semantic Web markup language can be used to describe the semantics of Web services and, combing ontology thinking, make them computer—interpretable ontology, so as to enable programs or agents to discover,invoke and compose Web services automatically and to grand for next generation of agent Web service .This dissertation focuses on semantic Web service ontology discovering baseing on classificatory querying and aims to develop the speed and efficiency of discovering.This dissertation studies the querying and classification of semantic web service ontology, including service ontology classifying, coding, extending, querying and matching. The main work includes three hereinafter aspects:(1) Studying on classification of semantic web service ontology.It's very important of classifying service ontology for improving efficiency of query on service ontology. Service here is been divide into two parts: the one part is the class of character's ontology and these ontologies is organized by the layer of class;the other is the ontology of exception, which is alse devided into two parts: the one has the property of class,it can be organized to a class, the other can be organized by relations of sets.(2) Studying on designing the code of classification and organizing exception ontology.Here a kind of codeing with number is produced on the class of field's ontology, and puts up a method of mapping class and codeing area. Individuals having the character of exception are coped by a random function to realize the relation between the individual and the set. And a certain degree of extension is been produced here on the codeing ontology.(3) Studying on the multidimensional discovery and querying semantic Web services ontology.A dynamic seeking tree of directory of semantic Web service ontology is designed to improve the efficiency of seeking through primary researching on reality of Internet, through using the technique of multidimensional data accessing, and through properly ameliorateing the tree of R, and through baseing of the codeing of classification on service ontology. A simple prototype system of service ontology querying is designed with VC++, the usability and validity of which is proved by a instance which can provide a result sets for users.