Results 21 to 30 of about 178,829 (130)

Trivariate Stochastic Weather Model for Predicting Maize Yield

open access: yesJournal of Applied Mathematics, Volume 2022, Issue 1, 2022., 2022
Maize yield prediction in the sub‐Saharan region is imperative for mitigation of risks emanating from crop loss due to changes in climate. Temperature, rainfall amount, and reference evapotranspiration are major climatic factors affecting maize yield.
Patrick Chidzalo   +3 more
wiley   +1 more source

Study on drought events in China based on time-varying nested Archimedean-copula function

open access: yesWater Supply, 2021
Abstract Drought forecasting, which can enable contingency actions to be implemented in advance of a drought, plays a significant role in reducing the risks and impacts of drought. In this study, a simulation framework of the occurrence probability of drought events based on a nested copula function and Gibbs sampling is proposed to ...
Ziyang Zhao   +3 more
openaire   +2 more sources

Construction and sampling of Archimedean and nested Archimedean Lévy copulas

open access: yesJournal of Multivariate Analysis, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Oliver Grothe, Marius Hofert
openaire   +2 more sources

Capturing non-exchangeable dependence in multivariate loss processes with nested Archimedean Lévy copulas [PDF]

open access: yesAnnals of Actuarial Science, 2014
AbstractThe class of spectrally positive Lévy processes is a frequent choice for modelling loss processes in areas such as insurance or operational risk. Dependence between such processes (e.g. between different lines of business) can be modelled with Lévy copulas.
Avanzi, B, Tao, J, Wong, B, Yang, X
openaire   +2 more sources

Systemic Risk Contribution and Contagion of Industrial Sectors in China: From the Global Financial Crisis to the COVID‐19 Pandemic

open access: yesJournal of Mathematics, Volume 2021, Issue 1, 2021., 2021
This paper investigates the risk contribution of 29 industrial sectors to the China stock market by using one‐factor with Durante generator copulas (FDG) and component expected shortfall (CES) analyses. Risk contagion between the systemically most important sector and other sectors is examined using a copula‐based ∆CoVaR approach.
Jianxu Liu   +6 more
wiley   +1 more source

Trivariate probabilistic assessments of the compound flooding events using the 3-D Fully Nested Archimedean (FNA) copula in the semiparametric distribution setting

open access: yesWater Resources Management, 2022
Abstract Severe flooding in coastal areas can result from the joint probability of multiple extreme or non-extreme oceanographic, hydrological, and meteorological factors, resulting in compound flooding (CF) events if they occur successively or simultaneously.
Shahid Latif, Slobodan P. Simonovic
openaire   +1 more source

On the estimation of nested Archimedean copulas: a theoretical and an experimental comparison [PDF]

open access: yesComputational Statistics, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Compounding joint impact of rainfall, storm surge and river discharge on coastal flood risk: An approach based on 3D Fully Nested Archimedean Copulas

open access: yesEnvironmental Earth Sciences, 2022
Abstract Compound flooding is a multidimensional consequence of the joint impact of multiple intercorrelated drivers such as oceanographic, hydrologic, and meteorological. These individual drivers exhibit interdependence due to common forcing mechanisms.
Shahid Latif, Slobodan P. Simonovic
openaire   +1 more source

Copulas, stable tail dependence functions, and multivariate monotonicity

open access: yesDependence Modeling, 2019
For functions of several variables there exist many notions of monotonicity, three of them being characteristic for resp. distribution, survival and co-survival functions. In each case the “degree” of monotonicity is just the basic one of a whole scale.
Ressel Paul
doaj   +1 more source

Pair-copula constructions of multiple dependence [PDF]

open access: yes, 2006
Building on the work of Bedford, Cooke and Joe, we show how multivariate data, which exhibit complex patterns of dependence in the tails, can be modelled using a cascade of pair-copulae, acting on two variables at a time.
Aas, Kjersti   +3 more
core   +1 more source

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