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- Didier Dubois, Henri Prade
- Mathematics in science and engineering
- 1980

Fuzziness is not a priori an obvious concept and demands some explanation. “Fuzziness” is what Black (NF 1937) calls “vagueness” when he distinguishes it from “generality” and from “ambiguity.” Generalizing refers to the application of a symbol to a multiplicity of objects in the field of reference, ambiguity to the association of a finite number of… (More)

- Didier Dubois, Jérôme Lang, Henri Prade
- IEEE Trans. Knowl. Data Eng.
- 1994

In this paper an approach to automated deduction under uncertainty ,based on possibilistic logic, is proposed ; for that purpose we deal with clauses weighted by a degree which is a lower bound of a necessity or a possibility measure, according to the nature of the uncertainty. Two resolution rules are used for coping with the different situations, and the… (More)

- Didier Dubois, Henri Prade
- Inf. Sci.
- 1983

- Didier Dubois, Henri Prade
- Computational Intelligence
- 1988

The theory of evidence proposed by G. Shafer is gaining more and more acceptance in the field of artificial intelligence, for the purpose of managing uncertainty in knowledge bases. One of the crucial problems is combining uncertain pieces of evidence stemming from several sources, whether rules or physical sensors. This paper examines the framework of… (More)

- Salem Benferhat, Claudette Cayrol, Didier Dubois, Jérôme Lang, Henri Prade
- IJCAI
- 1993

The idea of ordering plays a basic role in commonsense reasoning for addressing three interrelated tasks: inconsistency handling, belief revision and plausible inference. We study the behavior of non-monotonic inferences induced by various methods for priority-based handling of inconsistent sets of classical formulas. One of them is based on a lexicographic… (More)

- Didier Dubois, Hélène Fargier, Henri Prade
- Applied Intelligence
- 1996

In classical Constraint Satisfaction Problems (CSPs) knowledge is embedded in a set of hard constraints, each one restricting the possible values of a set of variables. However constraints in real world problems are seldom hard, and CSP's are often idealizations that do not account for the preference among feasible solutions. Moreover some constraints may… (More)

- Didier Dubois, Henri Prade
- Inf. Sci.
- 1985

- Didier Dubois, Henri Prade
- IJCAI
- 1995

A counterpart to von Neumann and Morgenstern' expected utility theory is proposed in the framework of possibility theory. The existence of a utility function, representing a preference ordering among possibility distributions (on the consequences of decision-maker's actions) that satisfies a series of axioms pertaining to decision-maker's behavior, is… (More)

- Didier Dubois, Henri Prade
- Scholarpedia
- 2007

- Didier Dubois, Henri Prade
- IEEE Trans. Systems, Man, and Cybernetics
- 1989