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Dempster-Shafer theory

The Dempster-Shafer theory is a mathematical theory of evidence that was introduced in the late Seventies by Glenn Shafer as a way of representing epistemic knowledge, starting from a sequence of seminal works of Arthur Dempster[?], Shafer's advisor. In this formalism the best representation of chance is a belief function (b.f.) rather than a Bayesian mass distribution. They assign probability values to sets of possibilities rather than single events: their appeal rests on the fact they naturally encode evidence in favor to propositions.

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Thomas a Kempis

... was made in 1434 by J. de Bellorivo and is preserved in Cologne. The editions in German began at Augsburg in 1486. The first English translation (1502) was by ...

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