Modeling user context with applications to media retrieval

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Modeling user context with applications to media retrieval
In this paper, we develop a theoretical understanding of multi-sensory knowledge and user context and their interrelationships. This is used to develop a generic representation framework for multi-sensory knowledge and context. A representation framework for context can have a significant impact on media applications that dynamically adapt to user needs. There are three key contributions of this work: (a) theoretical analysis, (b) representation framework and (c) experimental validation. Knowledge is understood to be a dynamic set of multi-sensory facts with three key properties – multi-sensory, emergent and dynamic. Context is the dynamic subset of knowledge that affects the communication between entities. We develop a graph based, multi-relational representation framework for knowledge, and model its temporal using a linear dynamical system. Our approach results in a stable and convergent system. We applied our representation framework to a image retrieval system with a large coll...
Ankur Mani, Hari Sundaram
Added 27 Dec 2010
Updated 27 Dec 2010
Type Journal
Year 2007
Where MMS
Authors Ankur Mani, Hari Sundaram
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