Title: Precise Propagation of Upper and Lower Probability Bounds in System P
Authors: Angelo Gilio
Series: Linköping Electronic Articles in Computer and Information Science
ISSN 1401-9841
Issue: Vol. 5 (2000), No. 022
URL: http://www.ep.liu.se/ea/cis/2000/022/
Abstract: In this paper we consider the inference rules of System P in the framework of coherent imprecise probabilistic assessments. Exploiting our algorithms, we propagate the lower and upper probability bounds associated with the conditional assertions of a given knowledge base, automatically obtaining the precise probability bounds for the derived conclusions of the inference rules. This allows a more flexible and realistic use of System P in default reasoning and provides an exact illustration of the degradation of the inference rules when interpreted in probabilistic terms. We also examine the disjunctive Weak Rational Monotony of System P +  proposed by Adams in his extended probability logic.
First posting
1999-04-06		 In ETAI Newsletter and Decision and Reasoning under Uncertainty
Original publication
2000-12-21 		Postscript part I -- Checksum
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