A Knowledge-Based Approach to Retrieving Teaching Materials for Context-Aware Learning

Wen-Chung Shih, Shian-Shyong Tseng, Educational Technology & Society, Mar 17, 2009
Commentary by Stephen Downes

This is a very nice and detailed paper describing a context-aware content retrieval system "consisting of four components: knowledge transformation,
query expansion, content retrieval and user interface." The system not only depends on contextual awareness, it also draws on a relevant knowledge base used to expand queries based on ontologies and other course-specific information. See especially figure 6, about halfway through the paper, for an overview diagram of the system. PDF.
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