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Evaluating uncertainty with Vertical Barrier Models
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DOI：10.1016/j.ijar.2024.109132.png)
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Abstract
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Vertical Barrier Models (VBM) are a family of imprecise probability models that generalise a number of well known distortion/neighbourhood models (such as the Pari-Mutuel Model, the Linear-Vacuous Model, and others) while still being relatively simple. Several of their properties were established in previous works; in this paper we explore, in a finite framework, further facets of these models: their interpretation as neighbourhood models, the structure of their credal set in terms of maximum number of its extreme points, the result of merging operations with VBMs, the properties of their mass function, the conditions for VBMs to be belief functions or maxitive measures and the approximation of other models by VBMs.
Keywords:
Vertical Barrier Models
Distortion models
Neighbourhood models
2-monotonicity
Belief functions
Maxitive measures
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