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Construction and Application Research of Ontology

Author: AiWei
Tutor: LiuHongXing
School: Wuhan University of Technology
Course: Computer Science and Applied Technology
Keywords: Body Semantic Web Build Domain ontology OWL Database conceptual modeling
CLC: TP393
Type: Master's thesis
Year: 2005
Downloads: 808
Quote: 21
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Abstract


XML database design methods and tools to study the preliminary work as Wuhan University Research Fund for the project, the paper focuses on the structure of the domain ontology, and how the body is used in database modeling work. Today, Web has become the main platform of network information, is the main source of people access to knowledge. However, because Web pages unstructured, free of disorder, hyperlinks, and Web content mass, diversity and dynamic changes, people to search really want from the Web information is not easy. To resolve these contradictions, the Web-founder TimBerners-Lee proposed the idea of ??the Semantic Web, it is the extension of the current Web. The aim is to make the Web more orderly information, allowing the computer to work together with people better. Semantic Web using multi-level representation framework, the body is located in the document describes the level of knowledge reasoning turning, ontology is the key link to the Semantic Web. Ontology is used to describe the link between a field even wider range of concepts and concept, and clearly the only definition of these concepts and contact within a certain range, to reach a consensus, so that man and machine exchange can be carried out. Despite ontology is a very important issue, but there is no mature methodology guidance ontology construction work. This paper argues that the ontology similar to the software development process. Compared with the traditional software development, the main body is more emphasized evolution, sharing and reuse, so it works more apparent. The popular methodology are also varying degrees of draws on the idea of ??software engineering. In software engineering, the spiral model and prototype importance of software evolution. Similarly, the study uses a spiral model-based prototyping method. This paper systematically introduces the theory of the Semantic Web and ontology. Under the guidance of these theories, the research goal is to build a resource disciplines of economics applications domain ontology. In the domain ontology building process, we will use the W3C recommended ontology language OWL as writing language, as a development and prototyping method based on the spiral model guidance, use Protégé2000 the preparation of the target application in the field of domain ontology file. Applied research in the body, through the analysis of the relationship between the body and the ER model, and then analyzes the role of the body in the database conceptual modeling, explore the the application ontology auxiliary ER modeling the basic method, and thus proposed - kind of ontology-based secondary database conceptual modeling framework. Auxiliary conceptual modeling framework, the body in the foundation of the economy, it provides designers domain knowledge to assist the design of the database. Finally, we - a prototype system to verify the feasibility of this framework.

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