Inferring Position Knowledge from Location Predicates

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Inferring Position Knowledge from Location Predicates
Many context- and location-aware applications request high accuracy and availability of positioning systems. In reality however, knowledge about the current position may be incomplete or inaccurate as a result of, e.g., limited coverage. Often, position data is thus merged from a set of systems, each contributing a piece of position knowledge. Traditional sensor fusion approaches such as Kalman or Particle filters have certain demands concerning the statistical distribution and relation between position and sensor output. Negated position statements ("I'm not at home"), cell-based information or external spatial data are difficult to incorporate into existing mechanisms. In this paper, we introduce a new approach to deal with different types of position data which typically appear in context- or location-aware application scenarios.
Jörg Roth
Added 08 Jun 2010
Updated 08 Jun 2010
Type Conference
Year 2007
Where LOCA
Authors Jörg Roth
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