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  • Errors bounds for finite approximations of coherent lower previsions on finite probability spaces
    Škulj, Damjan
    Coherent lower previsions are general probabilistic models allowing incompletely specified probability distributions. However, for complete description of a coherent lower prevision - even on finite ... underlying sample spaces - an infinite number of assessments is needed in general. Therefore, they are often only described approximately by some less general models, such as coherent lower probabilities or in terms of some other finite set of constraints. The magnitude of error induced by the approximations has often been neglected in the literature, despite the fact that it can be significant, with substantial impact on consequent decisions. An apparent reason is that no widely used general method for estimating the error seems to be available at the moment. This paper provides a practically applicable method that allows calculating an upper bound for the maximal error induced by approximating a coherent lower probability with its values on a finite set of gambles. An algorithm is also provided with an estimation of its computational complexity.
    Source: International journal of approximate reasoning. - ISSN 0888-613X (Vol. 105, Feb. 2019, str. 98-111)
    Type of material - article, component part
    Publish date - 2019
    Language - english
    COBISS.SI-ID - 35965789
    DOI

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