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Partial Exchangeability for Contingency Tables
Mathematics, 2022 A parameter free version of classical models for contingency tables is developed along the lines of de Finetti’s notions of partial exchangeability.
Persi Diaconis
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Counterfactual prediction from machine learning models: transportability and joint analysis for model development and evaluation using multi-source data [PDF]
Diagnostic and Prognostic ResearchBackground When a machine learning model is developed and evaluated in a setting where the treatment assignment process differs from the setting of intended model deployment, failure to account for this difference can lead to suboptimal model development
Sarah C. Voter +5 more
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Energies, 2021 Exchangeability means the possibility of the fuel changing, with conservation of the required energy and environmental criteria. The assessment of fuel exchangeability should be realized by a suitable method, which must reliably present the possibility ...
Martina Hlatká +4 more
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Lévy processes conditioned to stay in a half-space with applications to directional extremes
Modern Stochastics: Theory and Applications, 2022 This paper provides a multivariate extension of Bertoin’s pathwise construction of a Lévy process conditioned to stay positive or negative. Thus obtained processes conditioned to stay in half-spaces are closely related to the original process on a ...
Jevgenijs Ivanovs, Jakob D. Thøstesen
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Advances in Methods and Practices in Psychological Science, 2021 To investigate whether a variable tends to be larger in one population than in another, the t test is the standard procedure. In some situations, the parametric t test is inappropriate, and a nonparametric procedure should be used instead.
Julian D. Karch
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On Johnson’s “Sufficientness” Postulates for Feature-Sampling Models
Mathematics, 2021 In the 1920s, the English philosopher W.E. Johnson introduced a characterization of the symmetric Dirichlet prior distribution in terms of its predictive distribution. This is typically referred to as Johnson’s “sufficientness” postulate, and it has been
Federico Camerlenghi, Stefano Favaro
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Journal of Epidemiology, 2023 Background: The counterfactual definition of confounding is often explained in the context of exchangeability between the exposed and unexposed groups.
Etsuji Suzuki +2 more
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Conditional independence and predictive copula
4 open, 2022 In this paper, we address the concept of conditional independence between two random variables X and Y given the entity Θ. We identify the impact of conditional independence on the analytic form of the predictive 2-copula between X and Y.
González-López V.A. +1 more
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Convergence in Total Variation of Random Sums
Mathematics, 2021 Let (Xn) be a sequence of real random variables, (Tn) a sequence of random indices, and (τn) a sequence of constants such that τn→∞. The asymptotic behavior of Ln=(1/τn)∑i=1TnXi, as n→∞, is investigated when (Xn) is exchangeable and independent of (Tn ...
Luca Pratelli, Pietro Rigo
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Maximal asymmetry of bivariate copulas and consequences to measures of dependence
Dependence Modeling, 2022 In this article, we focus on copulas underlying maximal non-exchangeable pairs (X,Y)\left(X,Y) of continuous random variables X,YX,Y either in the sense of the uniform metric d∞{d}_{\infty } or the conditioning-based metrics Dp{D}_{p}, and analyze their ...
Griessenberger Florian +1 more
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