Titlebook: Handbook of Defeasible Reasoning and Uncertainty Management Systems; Algorithms for Uncer Jürg Kohlas,Serafín Moral Book 2000 Springer Scie

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Handbook of Defeasible Reasoning and Uncertainty Management Systems978-94-017-1737-3

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https://doi.org/10.1007/978-3-663-00104-1iated inference mechanism. In the present volume of the handbook the last aspect, the algorithmic aspects of uncertainty calculi are presented. Theory has sufficiently advanced to unfold some generally applicable fundamental structures and methods. On the other hand, particular features of specific

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,Vertragliche Unterlassungsansprüche,(called also a default rule or a conditional assertion) is a piece of information of the following form “generally, if . is believed then . is also believed”, where a and, . are assumed here to be propositional logical formulas. A typical example of a conditional assertion is “generally, birds fly”.

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https://doi.org/10.1007/978-3-658-18074-4t handles formulae of propositional or first-order classical logic, to which are attached lower bounds of so-called degrees of necessity and possibility. The degree of necessity (resp. possibility) of a formula expresses to what extent the formula is entailed by (resp. compatible with) the available

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https://doi.org/10.1007/978-3-642-88570-9 of . [Lauritzen and Spiegelhalter, 1988]. More general approaches are the Dempster-Shafer . [Shafer, 1976], and . [Dubois and Prade, 1990], which is closely related to fuzzy systems. For these systems computer implementations are available. In competition with these numerical methods are different

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Stefan Hormuth,Christian Schulze67; 1968] by Glenn Shafer in his book . [Shafer, 1976], and further publications e.g., [Shafer, 1981; 1990]. More recent variants of Dempster-Shafer theory include the . see e.g., [Smets, 1988; Smets and Keimes, 1994] and the . e.g., [Kohlas and Monney, 1995].

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