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Ontology-based online education resource library Research and Implementation

Author: LinJie
Tutor: PengHong；LiuZhiQiang
School: South China University of Technology
Course: Computer technology
Keywords: Ontology Semantic Web Educational Resources
CLC: TP311.52
Type: Master's thesis
Year: 2009
Downloads: 171
Quote: 2
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Abstract


Today, communication between humans and computers is far better than the degree of communication between people , between people and computers because of the lack of a clear and let the knowledge of computer processing support mechanisms , which reduces the person efficient information sharing between machines . To this end, domestic and foreign experts have studied ontology -based intelligent search technologies and knowledge management system with the aim to overcome the existing retrieval technology and information management deficiencies. Ontology as a conceptual modeling tool in the field of information retrieval has been widely applied in large measure to solve the problem of polysemy and other semantics . At present, construction of educational resources in the sharing, reuse, resource retrieval recall and precision rate and other issues still exist some shortcomings , in order to solve the current retrieval system synonyms difficult to identify , find difficulties and other issues related to this article to ontology is introduced into the construction of educational resources , and proposed ontology-based semantic retrieval system architecture , the system is designed to achieve the right resources within the field of semantic analysis , given sufficient semantic information retrieval system . This study focuses on the resource metadata description , domain ontology and semantic query , which is the theoretical basis for semantic retrieval . Firstly, the structure and characteristics of knowledge through the analysis of network course for the computer domain knowledge to construct a domain ontology . The ontology describes the semantic model of the curriculum areas , including knowledge structure, the basic relationship between concepts , etc., through the metadata ontology mapping between the knowledge linked with a specific resource . Finally developed a test system based on ontology , as well as simple to achieve basic functions such as storage and retrieval , and conducted a pilot test to obtain good results. The test in the field of computer networking knowledge and professional literature to retrieve an object to try to resolve the query does not recognize synonyms , related information Locating difficult issues. Experimental results show that the semantics of information resources under the framework of the information has been fully reflected and semantic retrieval strategy is feasible .

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