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- W136325538 abstract "This paper presents the case for using lower probabilities as measures of uncertainty in expert systems. A debate has raged within the artificial intelligence community for years about how to represent uncertainty in expert systems. Several camps have emerged. One camp has focused on developing alternatives to probability theory, such as certainty factors, fuzzy sets, and endorsements. A second camp has focused on retrofitting classical, additive probability, for example, by developing a cautious approach to probabilistic reasoning and interpreting probability within a possible worlds framework. This paper falls into a third camp, which encompasses generalizations of probability theory. The most discussed generalization is known as Dempster-Shafer Theory, which is based on the combined work of Dempster and Shafer. Lower probabilities are actually a substantial generalization of DST. This paper has two parts. The first presents the definitions of lower probabilities, DST, and additive probability. This section includes a discussion of capacities, the most general type of uncertainty measure. The purpose of this section is to show the differences among the uncertainty measures." @default.
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- W136325538 title "The case for lower probabilities as measures of uncertainty" @default.
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