Results 171 to 180 of about 9,257 (211)

On a class of transformations of copulas and quasi-copulas

Fuzzy Sets and Systems, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Pier Luigi Papini, Fabio Spizzichino
exaly   +2 more sources

Extensions of Discrete Copulas to Sparse Copulas

IEEE Transactions on Fuzzy Systems, 2021
In this article, we answer positively an open question posed in [G. Mayor, J. Suner, and J. Torrens, “Copula-like operations on finite settings,” IEEE Trans. Fuzzy Syst. , vol. 13, no. 4, pp. 468–477, Aug. 2005] concerning the extensions of discrete copulas to shuffles of Min.
Juan Fernández-Sánchez, José Juan Quesada-Molina, Manuel Úbeda-Flores   +2 more
openaire   +1 more source

Discrete Copulas

IEEE Transactions on Fuzzy Systems, 2006
We define discrete copulas on a grid of the unit square and show that with each discrete copula there is associated, in a natural way, a bistochastic matrix. This is used in order to introduce the product of discrete copulas. Discrete copulas of order n are the smallest convex set containing the irreducible discrete copulas of order n introduced by ...
A Kolesárová
exaly   +3 more sources

Quasi-copulas and copulas on a discrete scale

Soft Computing, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Anna Kolesárová, Juliana Mordelová
openaire   +1 more source

New results on discrete copulas and quasi-copulas

Fuzzy Sets and Systems, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Juan Fernández-Sánchez, José Juan Quesada-Molina, Manuel Úbeda-Flores   +2 more
openaire   +1 more source

OPPOSITE DIAGONAL SECTIONS OF QUASI-COPULAS AND COPULAS

International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems, 2009
In this paper, we study opposite diagonal sections of quasi-copulas and copulas. The best-possible upper bound for the set of copulas with a given opposite diagonal section being known, we focus on the best-possible lower bound, which in general is a quasi-copula. Moreover, it exhibits an interesting type of bivariate symmetry called opposite symmetry.
Bernard De Baets, Hans E. De Meyer, Manuel Úbeda-Flores   +2 more
openaire   +1 more source

On copulas that generalize semilinear copulas

Kybernetika, 2012
Summary: We study a wide class of copulas which generalizes well-known families of copulas, such as the semilinear copulas. We also study corresponding results for the case of quasi-copulas.
Juan Fernández-Sánchez, Manuel Úbeda-Flores   +1 more
openaire   +2 more sources

Copula Particle Filters

Computational Statistics & Data Analysis, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Carlos E. Rodríguez, Stephen G. Walker
openaire   +1 more source

On copulas and their diagonals

Information Sciences, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Exchangeable copulas

Fuzzy Sets and Systems, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources