Results 1 to 10 of about 1,082,690 (294)

Asymptotic normality of the relative error regression function estimator for censored and time series data

open access: yesDependence Modeling, 2021
Consider a survival time study, where a sequence of possibly censored failure times is observed with d-dimensional covariate The main goal of this article is to establish the asymptotic normality of the kernel estimator of the relative error regression ...
Bouhadjera Feriel, Saïd Elias Ould
doaj   +1 more source

On partially Schur-constant models and their associated copulas

open access: yesDependence Modeling, 2021
Schur-constant vectors are used to model duration phenomena in various areas of economics and statistics. They form a particular class of exchangeable vectors and, as such, rely on a strong property of symmetry.
Lefèvre Claude
doaj   +1 more source

Dispersive order comparisons on extreme order statistics from homogeneous dependent random vectors

open access: yesDependence Modeling, 2021
In this paper, we investigate sufficient conditions for preservation property of the dispersive order for the smallest and largest order statistics of homogeneous dependent random vectors.
Mesfioui Mhamed, Trufin Julien
doaj   +1 more source

A topological proof of Sklar’s theorem in arbitrary dimensions

open access: yesDependence Modeling, 2022
Copulas are appealing tools in multivariate probability theory and statistics. Nevertheless, the transfer of this concept to infinite dimensions entails some nontrivial topological and functional analytic issues, making a deeper theoretical understanding
Benth Fred Espen   +2 more
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

Modeling pH-Dependent Biomolecular Photochemistry

open access: yesJournal of Chemical Theory and Computation, 2023
The tuning mechanism of pH can be extremely challenging to model computationally in complex biological systems, especially with respect to photochemical properties. This article reports a protocol aimed at modeling pH-dependent photodynamics, using a combination of constant-pH molecular dynamics and semi-classical nonadiabatic molecular dynamics ...
Pieri, Elisa   +5 more
openaire   +3 more sources

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

Modeling Default Dependence with Threshold Models [PDF]

open access: yesThe Journal of Derivatives, 2005
Default risk is one of the most important and fastest growing areas in derivatives. Single-name credit default swaps are now well established, and markets for contracts based on the default experience of a credit portfolio, like collateralized debt obligations (CDOs) and basket default swaps, are developing rapidly.
Overbeck, Ludger, Schmidt, Wolfgang M.
openaire   +2 more sources

Abel-Gontcharoff polynomials, parking trajectories and ruin probabilities

open access: yesDependence Modeling, 2023
The central mathematical tool discussed is a non-standard family of polynomials, univariate and bivariate, called Abel-Goncharoff polynomials. First, we briefly summarize the main properties of this family of polynomials obtained in the previous work ...
Lefèvre Claude, Picard Philippe
doaj   +1 more source

A new extreme value copula and new families of univariate distributions based on Freund’s exponential model

open access: yesDependence Modeling, 2020
The use of the exponential distribution and its multivariate generalizations is extremely popular in lifetime modeling. Freund’s bivariate exponential model (1961) is based on the idea that the remaining lifetime of any entity in a bivariate system is ...
Guzmics Sándor, Pflug Georg Ch.
doaj   +1 more source

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