Semantic Relations Discovered Ontology Mapping Technology Research And Implementation

Ontology is a specification of share conceptual, specific and formalized. As a method of conceptual and model domain knowledge, ontology has become the standard of representing knowledge in the semantic web. With the number of ontology keeps increasing, reusing and sharing ontology is the most problems. Ontology mapping is the key to solve above problems, at present, many researchers are studying ontology mapping, but there are still exist many problems, for example, how to choose the suitable methods for mapping , how to use ontology information for obtain the best mapping effect. Aiming at these problems, this thesis researches the following contents:Firstly, we introduce the relate work about the semantic web, the current ontology mapping methods and strategies, and we also describe the function of designing ontology system.Secondly, aiming to the problems of high time complexity and getting the wrong mapping sets in the traditional methods, this thesis proposes an improved searching method, in this method, we consider the ontology structure for constraining the searching domain, through this process, the method improved the search efficiency. The experiment also verified the validity of the method.Finally, aiming to the problems of the current mapping methods could not make use of ontology information incompletely, and obtained the low precision and recall, this thesis proposes a number of improved sub-mapping algorithms and by defining ontology harmony to combine the multi-strategies to achieve the optimization of the mapping results.According to the above studies, the S-Mapping system is developed. Experimental results and analysis show that, compared with other mapping systems, this system can obtain more accurate mapping results. In addition, this thesis also introduces the application based on ontology technology in real environment.