Results 101 to 110 of about 2,966 (203)
Factor Tree Copula Models for Item Response Data. [PDF]
Kadhem SH, Nikoloulopoulos AK.
europepmc +1 more source
Factor Copula through a vine structure
Copula functions have been widely used in actuarial science, finance and econometrics. Though multivariate copulas allow for a flexible specification of the dependence structure of economic variables, they are not particularly tempting in high dimensional contexts.
openaire +3 more sources
Accurate modeling of multiband spectrum utilization is essential for data-driven spectrum management and refarming in mobile communication systems. However, the bounded and non-Gaussian nature of Resource Block (RB) utilization, together with complex ...
Yunbae Kim +3 more
doaj +1 more source
Chimera: An atlas of regular vines on up to 8 nodes. [PDF]
Morales-Nápoles O +3 more
europepmc +1 more source
Approximate Uncertainty Modeling in Risk Analysis with Vine Copulas. [PDF]
Bedford T, Daneshkhah A, Wilson KJ.
europepmc +1 more source
Investigating the probabilistic behavior of reference evapotranspiration using Vine tree sequence
Reference evapotranspiration, which includes the contribution of climatic conditions in potential evapotranspiration, is considered as an important and strategic criterion in water resources management and irrigation designs.
Aliheidar Nasrolahi +2 more
doaj +1 more source
An econometric Study for Vine Copulas
We present a new recursive algorithm to construct vine copulas based on an underlying tree structure. This new structure is interesting to compute multivariate distributions for dependent random variables. We proove the asymptotic normality of the vine copula parameter estimator and show that all vine copula parameter estimators have comparable ...
Guegan, Dominique, Maugis, Pierre-André
openaire +2 more sources
A new data integration framework for Covid-19 social media information. [PDF]
Ansell L, Dalla Valle L.
europepmc +1 more source
Dependence analysis of ethanol, suga, oil, BRL/USD exchange rate and Bovespa: a vine copula approach
The aim of this study is to assess the dependence relationship of the sugarcane sector (represented by Ethanol and Sugar), Oil, BRL/USD Exchange Rate and Brazilian stock market (represented by the BOVESPA – Bolsa de Valores de São Paulo – Index).
Anderson Gomes Resende, Osvaldo Candido
doaj
Mixed vine copula flows for flexible modeling of neural dependencies. [PDF]
Mitskopoulos L, Amvrosiadis T, Onken A.
europepmc +1 more source

