Evenly Convex Credal Sets
Proceedings of the Tenth International Symposium on Imprecise Probability: Theories and Applications, PMLR 62:109-120, 2017.
An evenly convex credal set is a set of probability measures that is evenly convex that is, a set that is an intersection of open halfspaces. An evenly convex credal set can for instance encode preference judgments through strict and non-strict inequalities such as $P(A) > 1/2$ and $P(A) ≤2/3$. This paper presents an axiomatization of evenly convex sets from preferences, where we introduce a new (and very weak) Archimedean condition.