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Context modeling and discovery using vector space bases Export

by: Massimo Melucci
In CIKM '05: Proceedings of the 14th ACM international conference on Information and knowledge management (2005), pp. 808-815.

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context ir vector-space

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In this paper, context is modeled by vector space bases and its evolution is modeled by linear transformations from one base to another. Each document or query can be associated to a distinct base, which corresponds to one context. Also, algorithms are proposed to discover contexts from document, query or groups or them. Linear algebra can thus by employed in a mathematical framework to process context, its evolution and application.


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