ABSTRACT It is currently fashionable to take Putnamian model-theoretic worries seriously for mathematics, but not discussions of ordinary physical objects and the sciences. However, I will argue that (under certain mild assumptions) merely securing determinate reference possibility suffices rule out kind nonstandard interpretations our number talk Putnam invokes. So, anyone who accepts should r...

This paper proposes a utility theory for decision making under uncertainty that is described by possibility theory. We show that our approach is a natural generalization of the two axiomatic systems that correspond to pessimistic and optimistic decision criteria proposed by Dubois et al. The generalization is achieved by removing axioms that are supposed to reflect attitudes toward uncertainty,...

This paper proposes to analyze two flow line systems in which we include possibilistic data -the priority-discipline is possibilistic instead of probabilisticand measure the performances of the systems with the effectiveness measure “waiting time in queue”. In a previous work we have analyzed and developed a queuing model with uncertain priority-discipline, using Zadeh’s extension principle. Be...

This paper introduces the notions of independence and conditional independence in valuation-based systems (VBS). VBS is an axiomatic framework capable of representing many different uncertainty calculi. We define independence and conditional independence in terms of factorization of the joint valuation. The definitions of independence and conditional independence in VBS generalize the correspon...

This paper introduces the nolions of independence and conditional independence in valuation-based systems (VBS). VBS is an axiomatic framework capable of representing many different uncertainty calculi. We define independence and conditional independence in terms of factorization of the joint valuation. The definitions of independence and conditional independence in VBS generalize the correspon...

This contribution overviews the approaches results and history of attempts at measuring uncertainty and information in the various theories of imprecise prob abilities The main focus however is on the theory of belief functions or the Dempster Shafer theory and the possibility theory as most of the devel opment so far has happened there Due to the limited space I am focusing on the main ideas a...

In this paper, we analyze the formalism proposed by Yager[6] to represent default knowledge in the framework of possibility theory. Three different application schemes are examined. The results produced by these application schemes are compared with those by Reiter’s default logic. It is shown that for a restricted class of default theories, there is some kinds of correspondence between Yager’s...