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Augustin, Thomas (2002): Generalized basic probability assignments. Collaborative Research Center 386, Discussion Paper 276
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Abstract

Dempster-Shafer theory allows to construct belief functions from (precise) basic probability assignments. The present paper extends this idea substantially. By considering SETS of basic probability assignments, an appealing constructive approach to general interval probability (general imprecise probabilities) is achieved, which allows for a very flexible modelling of uncertain knowledge.