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In order to make best use of massive oilfield XML data which is heterogeneous and distributed, we propose a semantic integration method of building XML Knowledge Base named XML-WeKB. In this method, XML schema is first mapped to a local-Ontology by series of extraction rules, and then XML data is converted into local-Ontology instances to fill XML-WeKB by executing a recursive transformation algorithm...
A construction method of knowledge transfer within virtual communities of practice based on semantic-level was proposed to promote the quality of knowledge transfer and boost knowledge sharing and innovation. First, characteristics of virtual communities of practice different from communities of practice and virtual communities were summed up. Then a knowledge integration framework was constructed...
The existing data integration systems which are not suitable for the changeable needs of enterprises become more and more complex and unfeasible with the increasing heterogeneous data sources. To solve the problem, this paper proposes a non-instance ontology-based approach of concepts mapping and an approach of plug-in management. Ontology mapping is used to provide basic data to integrate the semantic...
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