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Knowledge visualization and retrieval are the key techniques to implement effective knowledge management. Traditional research on knowledge map emphasizes on building global view of knowledge base, but ignores its support to knowledge retrieval. In this paper, a searchable knowledge map model is proposed. Based on this model, we extent the search-ability of knowledge map and propose three practical...
An important target in ontology evolution is to guarantee ontology consistency when changes occur. Most of previous work focused on providing general methods for handling abstract changes, but ignored detailed methods for the specific changes, especially those property range changes which often arise in practice. This paper presents a process to apply a request change, by focusing on the specific...
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