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Subontology-Based Resource Management for Web-Based e-Learning
June 2009 (vol. 21 no. 6)
pp. 867-880
Zhaohui Wu, Zhejiang University, Hangzhou
Yuxin Mao, Zhejiang University, Hangzhou
Huajun Chen, Zhejiang University, Hangzhou
Recent advances in Web and information technologies have resulted in many e-learning resources. There is an emerging requirement to manage and reuse relevant resources together to achieve on-demand e-learning in the Web. Ontologies have become a key technology for enabling semantic-driven resource management. We argue that to meet the requirements of semantic-based resource management for Web-based e-learning, one should go beyond using domain ontologies statically. In this paper, we provide a semantic mapping mechanism to integrate e-learning databases by using ontology semantics. Heterogeneous e-learning databases can be integrated under a mediated ontology. Taking into account the locality of resource reuse, we propose to represent context-specific portions from the whole ontology as subontologies. We present a subontology-based approach for resource reuse by using an evolutionary algorithm. We also conduct simulation experiments to evaluate the approach with a traditional Chinese medicine e--learning scenario and obtain promising results.

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Index Terms:
Semantic Web, collaborative learning, information resource management, knowledge reuse.
Citation:
Zhaohui Wu, Yuxin Mao, Huajun Chen, "Subontology-Based Resource Management for Web-Based e-Learning," IEEE Transactions on Knowledge and Data Engineering, vol. 21, no. 6, pp. 867-880, June 2009, doi:10.1109/TKDE.2008.127
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