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The Ordering of Shannon Entropies for the Multivariate Distributions and Distributions of Eigenvalues [PDF]

open access: yesEntropy, 2019
In this paper, we prove the Shannon entropy inequalities for the multivariate distributions via the notion of convex ordering of two multivariate distributions.
Ming-Tien Tsai   +2 more
doaj   +2 more sources

The Leader Property in Quasi Unidimensional Cases

open access: yesMathematics, 2022
The following problem was studied: let Zjj≥1 be a sequence of i.i.d. d-dimensional random vectors. Let F be their probability distribution and for every n≥1 consider the sample Sn={Z1,Z2,…,Zn}.
Anișoara Maria Răducan   +1 more
doaj   +1 more source

Multivariate NBU and NBUE Distributions [PDF]

open access: yesThe Egyptian Statistical Journal, 1981
Various definitions of multivariate new better than used (NBU) and new better than used in expectation (NBUE) life distributions are introduced and their interrelationship is studied. Examples are given to illustrate these concepts.
Nader Ebrahimi, Malay Ghosh
doaj   +1 more source

Drought Shocks and Gearing Impacts on the Profitability of Sheep Farming

open access: yesAgriculture, 2021
The resilience and profitability of livestock production in many countries can be impacted by shocks, such as drought and market shifts, especially under high debt levels.
Sosheel S. Godfrey   +5 more
doaj   +1 more source

Theoretical Study of Some Angle Parameter Trigonometric Copulas

open access: yesModelling, 2022
Copulas are important probabilistic tools to model and interpret the correlations of measures involved in real or experimental phenomena. The versatility of these phenomena implies the need for diverse copulas.
Christophe Chesneau
doaj   +1 more source

On the Probability of Finding Extremes in a Random Set

open access: yesMathematics, 2022
We consider a sequence Zjj≥1 of i.i.d. d-dimensional random vectors and for every n≥1 consider the sample Sn={Z1,Z2,…,Zn}. We say that Zj is a “leader” in the sample Sn if Zj≥Zk,∀k∈{1,2,…,n}and Zj is an “anti-leader” if Zj≤Zk,∀k∈{1,2,…,n}. After all, the
Anișoara Maria Răducan   +3 more
doaj   +1 more source

Stochastic Order for a Multivariate Uniform Distributions Family

open access: yesMathematics, 2020
In this article we give sufficient conditions for stochastic order of multivariate uniform distributions on closed convex sets.
Luigi-Ionut Catana, Anisoara Raducan
doaj   +1 more source

A Compendium of Copulas

open access: yesStatistica, 2018
Copulas are used to specify dependence between two or more random variables. The last few years have seen a surge of developments of parametric models for copulas.
Saralees Nadarajah   +2 more
doaj   +1 more source

Finite Mixtures of Multivariate Skew Laplace Distributions

open access: yesRevstat Statistical Journal, 2021
This paper proposes finite mixtures of multivariate skew Laplace distributions in order to model both skewness and heavy-tailedness in heterogeneous data sets.
Fatma Zehra Doğru   +2 more
doaj   +1 more source

On a Multivariate Analog of the Zolotarev Problem

open access: yesMathematics, 2021
A generalized multivariate problem due to V. M. Zolotarev is considered. Some related results on geometric random sums and (multivariate) geometric stable distributions are extended to a more general case of “anisotropic” random summation where sums of ...
Yury Khokhlov, Victor Korolev
doaj   +1 more source

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