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Activity Zones for Context-Aware Computing

Author(s)
Koile, Kimberle; Tollmar, Konrad; Demirdjian, David; Shrobe, Howard; Darrell, Trevor
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Abstract
Location is a primary cue in many context-aware computing systems, and is often represented as a global coordinate, room number, or Euclidean distance various landmarks. A user?s concept of location, however, is often defined in terms of regions in which common activities occur. We show how to partition a space into such regions based on patterns of observed user location and motion. These regions, which we call activity zones, represent regions of similar user activity, and can be used to trigger application actions, retrieve information based on previous context, and present information to users. We suggest that context-aware applications can benefit from a location representation learned from observing users. We describe an implementation of our system and present two example applications whose behavior is controlled by users? entry, exit, and presence in the zones.
Date issued
2003-06-10
URI
http://hdl.handle.net/1721.1/6720
Other identifiers
AIM-2003-015
Series/Report no.
AIM-2003-015
Keywords
AI, context-aware, activity, intelligent environment, ubiquitous, 3d tracker

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