关键词: 本体, RDFS, 集成, 图模型, 闭包, 相似度

Abstract: The data resources in real life are always semi-structure，heterogeneous and distributed.In many cases，it’s necessary to take associated operations between them.Ontology integration is a powerful tool for knowledge sharing and semantic interoperation，which comes form the different data resources.Firstly，after analyzing the reasons of ontology integration，this paper puts forward the four basic rules for ontology integration.Secondly，a method based on the closure of RDFS for ontology integration，is proposed.In this method，RDFS ontologies are abstracted as graph models.Using the RDFS inference rules and its extension，the closure of RDFS ontologies can be constructed.Based on these closures，the integration can be carried out.During this part，some measure methods for similarity between entities are proposed too.Lastly，for comparing with COMA++ and FCA-merge，this paper presents the experiments of them.

Key words: ontology, Resource Description Frame Schema（RDFS）, integration, graph model, closure, similarity