Kalman-like filtering in a qualitative setting, a preliminary draft


Salem Benferhat
Didier Dubois
Henri Prade

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Keywords: None submitted.


Abstract
: A qualitative counterpart of Kalman filtering is proposed, which is contrasted with updating operations based on imaging in the sense of Lewis. Filtering and updating are defined and compared in the framework of possibility theory. A syntactic counterpart of qualitative filtering (and updating) is outlined in the setting of possibilistic logic.


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Salem Benferhat,
benferhat@irit.fr
Didier Dubois,
dubois@irit.fr
Henri Prade,
prade@irit.fr
IRIT
Univerité Paul Sabatier
31062 Toulouse Cedex 4
France


Spinning Ideas, Electronic Essays
Dedicated to Peter Gärdenfors on His Fiftieth Birthday