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copulaedas: An R Package for Estimation of Distribution Algorithms Based on Copulas [PDF]
, 2014 The use of copula-based models in EDAs (estimation of distribution algorithms) is currently an active area of research. In this context, the copulaedas package for R provides a platform where EDAs based on copulas can be implemented and studied.
Gonzalez-Fernandez, Yasser, Soto, Marta
core +4 more sources
An Econometric Study of Vine Copulas [PDF]
SSRN Electronic Journal, 2010 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 ...
Dominique Guegan, Pierre-André Maugis
openaire +3 more sources
Copulas as High-Dimensional Generative Models: Vine Copula Autoencoders
, 2019 We introduce the vine copula autoencoder (VCAE), a flexible generative model for high-dimensional distributions built in a straightforward three-step procedure. First, an autoencoder (AE) compresses the data into a lower dimensional representation. Second, the multivariate distribution of the encoded data is estimated with vine copulas.
Tagasovska, Natasa +2 more
openaire +3 more sources
Vine copula based dependence modeling in sustainable finance
Journal of Finance and Data Science, 2022 Climate change and sustainability have become societal focal points in the last decade. Consequently, companies have been increasingly characterized by non-financial information, such as environmental, social, and governance (ESG) scores, based on which ...
Claudia Czado +5 more
doaj +1 more source
Modeling International Financial Returns with a Multivariate Regime Switching Copula [PDF]
In order to capture observed asymmetric dependence in international financial returns, we construct a multivariate regime-switching model of copulas. We model dependence with one Gaussian and one canonical vine copula regime.
Chollete, Lorán +2 more
core +6 more sources
IET Energy Systems Integration, 2022 With the continuous development of Regional Integrated Energy System (RIES), demand response (DR) is composed of diversified loads including electric load, heat load and gas load.
Shuxin Tian +4 more
doaj +1 more source
R-vine Models for Spatial Time Series with an Application to Daily Mean Temperature [PDF]
, 2014 We introduce an extension of R-vine copula models for the purpose of spatial dependency modeling and model based prediction at unobserved locations.
Czado, Claudia +2 more
core
Risk return of forward contracting corn with crop insurance
Journal of the Agricultural and Applied Economics Association, EarlyView.Abstract Forward contracting is a common pre‐harvest marketing strategy for row crops, with evidence suggesting higher prices during summer months due to embedded weather risk premiums. While aggressive forward contracting increases farmers' yield risk and potential non‐delivery penalties, crop revenue protection can help offset these financial burdens.
Chandan Bhattarai +4 more
wiley +1 more source
IEEE AccessUsing copulas in statistics evaluates the dependence between random variables. Copula modeling has significantly been used in many areas, especially in the search for multivariate distributions.
Amir Shahirinia +4 more
doaj +1 more source
Time series with infinite-order partial copula dependence
Dependence Modeling, 2022 Stationary and ergodic time series can be constructed using an s-vine decomposition based on sets of bivariate copula functions. The extension of such processes to infinite copula sequences is considered and shown to yield a rich class of models that ...
Bladt Martin, McNeil Alexander J.
doaj +1 more source