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Estimation of Distribution Algorithms based on Nested Archimedean Copulas [PDF]

open access: yesProcedia Engineering, 2011
AbstractThe main hurdle for EDAs is how to estimate and sample the joint probability distribution, especially in d-dimensiona case (d>2). Copula theory provides a useful tool for multivariate probability analysis, which separates joint probability distribution function into product of marginal distributions.
Wang, Xiaoping   +3 more
exaly   +3 more sources

Modeling the Dependence of Losses of a Financial Portfolio Using Nested Archimedean Copulas [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2021
In financial analysis, stochastic models are more and more used to estimate potential outcomes in a risky framework. This paper proposes an approach of modeling the dependence of losses on securities, and the potential loss of the portfolio is divided into sectors each including two subsectors.
Wendkouni Yaméogo, Diakarya Barro
openaire   +3 more sources

Nonparametric estimation of the tree structure of a nested Archimedean copula [PDF]

open access: yesComputational Statistics and Data Analysis, 2014
25 pages, 9 ...
Johan Segers
exaly   +3 more sources

Estimation of the association parameters in hierarchically clustered survival data by nested Archimedean copula functions

open access: yesComputational Statistics, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Roel Braekers, Mírzá Nazmul Hasan
exaly   +3 more sources

Densities of nested Archimedean copulas

open access: yesJournal of Multivariate Analysis, 2013
Nested Archimedean copulas recently gained interest since they generalize the well-known class of Archimedean copulas to allow for partial asymmetry. Sampling algorithms and strategies have been well investigated for nested Archimedean copulas. However, for likelihood based inference it is important to have the density. The present work fills this gap.
Marius Hofert, David Pham
openaire   +4 more sources

Tourists’ travel mode and length of stay: Application of a fully nested Archimedean copula structure

open access: yesTransportation Research, Part A: Policy and Practice, 2023
Taha Hossein Rashidi, Tay Koo
exaly   +2 more sources

Pricing Multi-Event-Triggered Catastrophe Bonds Based on a Copula–POT Model

open access: yesRisks, 2023
The constantly expanding losses caused by frequent natural disasters pose many challenges to the traditional catastrophe insurance market. The purpose of this paper is to develop an innovative and systemic trigger mechanism for pricing catastrophic bonds
Yifan Tang   +3 more
doaj   +1 more source

Assessing the hydrodynamic boundary conditions for risk analyses in coastal areas: a multivariate statistical approach based on Copula functions [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2012
This paper presents an advanced approach to statistically analyse storm surge events. In former studies the highest water level during a storm surge event usually was the only parameter that was used for the statistical assessment.
T. Wahl, C. Mudersbach, J. Jensen
doaj   +1 more source

Hierarchical Archimedean Copulas for MATLAB and Octave: The HACopula Toolbox

open access: yesJournal of Statistical Software, 2020
To extend the current implementation of copulas in MATLAB to non-elliptical distributions in arbitrary dimensions enabling for asymmetries in the tails, the toolbox HACopula provides functionality for modeling with hierarchical (or nested) Archimedean ...
Jan Górecki   +2 more
doaj   +1 more source

Nested Archimedean Copulas MeetR: ThenacopulaPackage [PDF]

open access: yesJournal of Statistical Software, 2011
The package nacopula provides procedures for constructing nested Archimedean copulas in any dimensions and with any kind of nesting structure, generating vectors of random variates from the constructed objects, computing function values and probabilities of falling into hypercubes, as well as evaluation of characteristics such as Kendall's tau and ...
Hofert, Marius   +1 more
openaire   +2 more sources

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