Results 91 to 100 of about 4,162 (190)

Performance Analysis of RIS-Assisted Communication With Direct Link: A New Copula Application

IEEE Open Journal of the Communications Society
Reconfigurable intelligent surface (RIS) has received remarkable attention as a promising solution to enhance the capacity and coverage of wireless cellular networks. In this paper, we evaluate the performance of RIS-assisted communication systems in the
Damoon Shahbaztabar, Imene Trigui, Wei-Ping Zhu, Wessam Ajib   +3 more
doaj   +1 more source

Gordon and Newell queueing networks and copulas [PDF]

In this paper we have found an analytical formula for a copula that connects the numbers Ni of customers in the nodes of a Gordon and Newell queueing network.
Ciuiu, Daniel
core   +1 more source

Tail Dependence among Agricultural Insurance Indices: The Case of Iowa County-Level Rainfalls [PDF]

Index insurance has been promoted as a cost-effective risk management alternative for agricultural producers in developing countries. In this paper, we ask whether spatially separated weather variables commonly used in index insurance design, such as ...
Liu, Pu, Miranda, Mario J.
core   +1 more source

Hierarchical Archimedean Copulae

, 2012
This paper aims at explanation of the R-package HAC, which provides user friendly methods for dealing with high-dimensional hierarchical Archimedean copulae (HAC). A computationally eficient estimation procedure allows to recover the structure and the parameters of HACs from data.
Okhrin, Ostap, Ristig, Alexander
openaire   +1 more source

Modelado de parejas aleatorias usando cópulas Modelling Random Couples Using Copulas

Revista Colombiana de Estadística, 2009
Las cópulas se han convertido en una herramienta útil para el modelado multivariado tanto estocástico como estadístico. En este artículo se revisan propiedades fundamentales de las cópulas que permitan caracterizar la estructura de dependencia de ...
GABRIEL ESCARELA, ANGÉLICA HERNÁNDEZ
doaj  

Dependence properties of bivariate copula families

Dependence Modeling
Motivated by recently investigated results on dependence measures and robust risk models, this article provides an overview of dependence properties of many well known bivariate copula families, where the focus is on the Schur order for conditional ...
Ansari Jonathan, Rockel Marcus
doaj   +1 more source

Simulation of queueing systems with many stations and of queueing networks using copulas [PDF]

In this paper we will generate queueing systems with c stations where the inter-arrival time and the c service times depend through a c+1 copula C. We will consider two models: first when the customer does not know the order of service times for the free
Ciuiu, Daniel
core   +1 more source

Penalized estimation of hierarchical Archimedean copula

Journal of Multivariate Analysis
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ostap Okhrin, Alexander Ristig
openaire   +3 more sources

MODELLING RANDOM COUPLES USING COPULAS MODELADO DE PAREJAS ALEATORIAS USANDO CÓPULAS

Revista Colombiana de Estadística, 2009
Copulas have become a useful tool for the multivariate modelling in both stochastics and statistics. In this article, fundamental properties that allow the characterization of the dependence structure of families of the bivariate distributions defined by
Escarela Gabriel, Hernández Angélica
doaj  

An information ratio-based goodness-of-fit test for copula models on censored data. [PDF]

Biometrics, 2023
Sun T, Cheng Y, Ding Y.
europepmc   +1 more source