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Logical Filtering

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Title: Logical Filtering
Author(s): Amir, Eyal; Russell, Stuart
Subject(s): algorithms artificial intelligence
Abstract: Filtering denotes any method whereby an agent updates its belief state - its knowledge of the state of the world - from a sequence of actions and observations. In logical filtering, the belief state is a logical formula describing possible world states and the agent has a (possibly nondeterministic) logical model of its environment and sensors. This paper presents efficient logical filtering algorithms that maintain a compact belief state representation indefinitely, for a broad range of environment classes including nondeterministic, partially observable STRIPS environments and environments in which actions permute the state space. Efficient filtering is also possible when the belief state is represented using prime implicates, or when it is approximated by a logically weaker formula.
Issue Date: 2005-05
Genre: Technical Report
Type: Text
URI: http://hdl.handle.net/2142/10983
Other Identifier(s): UIUCDCS-R-2005-2500
Rights Information: You are granted permission for the non-commercial reproduction, distribution, display, and performance of this technical report in any format, BUT this permission is only for a period of 45 (forty-five) days from the most recent time that you verified that this technical report is still available from the University of Illinois at Urbana-Champaign Computer Science Department under terms that include this permission. All other rights are reserved by the author(s).
Date Available in IDEALS: 2009-04-17
 

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