Results 1 to 10 of about 299 (140)

On composite length-biased exponential-Pareto distribution: Properties, simulation, and application in actuarial science

open access: yesFrontiers in Applied Mathematics and Statistics, 2023
The composite length-biased exponential-Pareto (CLBEP) distribution is a new composite distribution that is introduced in this article. This model's probability density function, moments, and quantiles, among other statistical characteristics, are ...
Moulouk Halima Benchettah   +2 more
doaj   +2 more sources

A superior extension for the Lomax distribution with application to Covid-19 infections real data [PDF]

open access: yesAlexandria Engineering Journal, 2022
We present a new continuous lifetime model with four parameters by combining the Lomax and the Weibull distributions. The extended odd Weibull Lomax (EOWL) distribution is what we’ll call it.
Hassan Alsuhabi   +7 more
doaj   +2 more sources

A new extended rayleigh distribution with applications of COVID-19 data [PDF]

open access: yesResults in Physics, 2021
This paper aims to model the COVID-19 mortality rates in Italy, Mexico, and the Netherlands, by specifying an optimal statistical model to analyze the mortality rate of COVID-19.
Hisham M. Almongy   +4 more
doaj   +2 more sources

Insights on the trend of the Novel Coronavirus 2019 series in some Small Island Developing States: A Thinning-based Modelling Approach [PDF]

open access: yesAlexandria Engineering Journal, 2021
Undeniably, the Novel Coronavirus 2019, (COVID-19), has disrupted the routine functioning of the global economic and social activities. In particular, vulnerable economies such as the Small Island Developing states (SIDs) are facing unprecedented health ...
Naushad Mamode Khan   +3 more
doaj   +2 more sources

On copulas of self-similar Ito processes

open access: yesDependence Modeling, 2021
We characterize the cumulative distribution functions and copulas of two-dimensional self-similar Ito processes, with randomly correlated Wiener margins, as solutions of certain elliptic partial differential equations.
Jaworski Piotr, Krzywda Marcin
doaj   +1 more source

Sklar’s theorem, copula products, and ordering results in factor models

open access: yesDependence Modeling, 2021
We consider a completely specified factor model for a risk vector X = (X1, . . ., Xd), where the joint distributions of the components of X with a risk factor Z and the conditional distributions of X given Z are specified.
Ansari Jonathan, Rüschendorf Ludger
doaj   +1 more source

Functions operating on several multivariate distribution functions

open access: yesDependence Modeling, 2023
Functions ff on [0,1]m{\left[0,1]}^{m} such that every composition f∘(g1,…,gm)f\circ \left({g}_{1},\ldots ,{g}_{m}) with dd-dimensional distribution functions g1,…,gm{g}_{1},\ldots ,{g}_{m} is again a distribution function, turn out to be characterized ...
Ressel Paul
doaj   +1 more source

Stable tail dependence functions – some basic properties

open access: yesDependence Modeling, 2022
We prove some important properties of the extremal coefficients of a stable tail dependence function (“STDF”) and characterise logistic and some related STDFs.
Ressel Paul
doaj   +1 more source

Dependence uncertainty bounds for the energy score and the multivariate Gini mean difference

open access: yesDependence Modeling, 2020
The energy distance and energy scores became important tools in multivariate statistics and multivariate probabilistic forecasting in recent years. They are both based on the expected distance of two independent samples. In this paper we study dependence
Bernard Carole, Müller Alfred
doaj   +1 more source

Maximal asymmetry of bivariate copulas and consequences to measures of dependence

open access: yesDependence 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
doaj   +1 more source

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