Results 31 to 40 of about 925 (187)

Neumann Series on the Recursive Moments of Copula-Dependent Aggregate Discounted Claims

open access: yesRisks, 2014
We study the recursive moments of aggregate discounted claims, where the dependence between the inter-claim time and the subsequent claim size is considered.
Siti Norafidah Mohd Ramli, Jiwook Jang
doaj   +1 more source

A novel bivariate Lomax-G family of distributions: Properties, inference, and applications to environmental, medical, and computer science data

open access: yesAIMS Mathematics, 2023
This paper presents a novel family of bivariate continuous Lomax generators known as the BFGMLG family, which is constructed using univariate Lomax generator (LG) families and the Farlie Gumbel Morgenstern (FGM) copula. We have derived several structural
Aisha Fayomi   +2 more
doaj   +1 more source

On Optimization of Copula-Based Extended Tail Value-at-Risk and its Application in Energy Risk

open access: yesIEEE Access, 2021
In this paper, we study a novel risk measure, which is a copula-based extension of tail value-at-risk (TVaR). This measure is called dependent tail value-at-risk (DTVaR), which is a generalization of TVaR.
Bony Parulian Josaphat   +2 more
doaj   +1 more source

The Long-Term Bivariate Survival FGM Copula Model: An Application to a Brazilian HIV Data [PDF]

open access: yesJournal of Data Science, 2021
En este documento proponemos una nueva distribución bivariada a largo plazo basada en el modelo de cópula de Farlie-Gumbel-Morgenstern. El modelo propuesto permite la presencia de datos censurados y covariables en el parámetro cure. Para fines inferenciales, se considera un enfoque bayesiano a través de Markov Chain Monte Carlo (MCMC).
Francisco Louzada   +4 more
openaire   +1 more source

A Collection of New Trigonometric- and Hyperbolic-FGM-Type Copulas

open access: yesAppliedMath, 2023
Copula analysis was created to explain the dependence of two or more quantitative variables. Due to the need for in-depth data analysis involving complex variable relationships, there is always a need for new copula models with original features.
openaire   +2 more sources

Thresholding methods to estimate the copula density [PDF]

open access: yes, 2005
This paper deals with the problem of the multivariate copula density estimation. Using wavelet methods we provide two shrinkage procedures based on thresholding rules for which the knowledge of the regularity of the copula density to be estimated is not ...
Autin, Florent   +2 more
core   +4 more sources

Analyzing Physical-Layer Security of PLC Systems Using DCSK: A Copula-Based Approach

open access: yesIEEE Open Journal of the Communications Society, 2023
This study analyzes the physical layer security (PLS) performance of a differential chaos shift keying (DCSK) modulation-based Power Line Communication (PLC) system by exploiting the novel Farlie-Gumbel-Morgenstern (FGM) Copula approach.
Vinay Mohan   +2 more
doaj   +1 more source

CopulaDTA: An R Package for Copula Based Bivariate Beta-Binomial Models for Diagnostic Test Accuracy Studies in a Bayesian Framework [PDF]

open access: yes, 2016
The current statistical procedures implemented in statistical software packages for pooling of diagnostic test accuracy data include hSROC regression and the bivariate random-effects meta-analysis model (BRMA).
Aerts, Marc   +2 more
core   +3 more sources

Gerber–Shiu Function in a Class of Delayed and Perturbed Risk Model with Dependence

open access: yesRisks, 2020
This paper considers the risk model perturbed by a diffusion process with a time delay in the arrival of the first two claims and takes into account dependence between claim amounts and the claim inter-occurrence times.
Franck Adékambi, Essodina Takouda
doaj   +1 more source

Constructing a bivariate distribution function with given marginals and correlation: application to the galaxy luminosity function

open access: yes, 2010
We show an analytic method to construct a bivariate distribution function (DF) with given marginal distributions and correlation coefficient. We introduce a convenient mathematical tool, called a copula, to connect two DFs with any prescribed dependence ...
Ball   +60 more
core   +1 more source

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