Results 61 to 70 of about 119 (106)

Dependent defaults and losses with factor copula models

open access: yesDependence Modeling, 2017
We present a class of flexible and tractable static factor models for the term structure of joint default probabilities, the factor copula models. These high-dimensional models remain parsimonious with paircopula constructions, and nest many standard ...
Ackerer Damien, Vatter Thibault
doaj   +1 more source

Multivariate measures of positive dependence

open access: yes, 2008
In this paper a set of desirable properties for measures of positive dependence of ordered n-tuples of continuous random variables (n ≥ 2)is proposed and a class of multivariate positive dependence measures is introduced.
CARDIN, Marta, CARDIN M.
core  

Dependence measure for length-biased survival data using copulas

open access: yesDependence Modeling, 2019
The linear correlation coefficient of Bravais-Pearson is considered a powerful indicator when the dependency relationship is linear and the error variate is normally distributed.
Bentoumi Rachid   +2 more
doaj   +1 more source

Nonparametric Notions of Multivariate "Scatter Measure" and "More Scattered" Based on Statistical Depth Functions

open access: yes, 1999
Nonparametric notions of multivariate "scatter measure" and "more scattered", based on statistical depth functions, are investigated.
Robert Serfling, Yijun Zuo
core  

Complexity Of Structural Models

open access: yes, 1998
Complexity of a model of conditional independence structure is introduced as the least cardinality of a generating set. Four basic types of complexity are distinguished which depend on the type of generating.
Studený, Milan, Milan Studeny
core  

Characterizations of Some Subclasses of Spherical Distributions

open access: yes, 2007
Three types of characterizations for two subclasses of spherical distributions are presented. Within the class of spherical distributions, we prove that the symmetric Kotz type distributions (under some restricted parameters) and the symmetric Pearson ...
Jia-Juan Liang, Peter M. Bentler
core  

Characterizations of multivariate life distributions

open access: yes
Characterizations of multivariate distributions has been a topic of great interest in applied statistics literature for the last three decades. In this paper, we develop characterizations of multivariate lifetime distributions by relationship between ...
Sankaran, P.G., Nair, N. Unnikrishnan
core  

Block-Factor Fields Of Bernoulli Shifts

open access: yes, 1998
. The distributions of the random arrays (a j i ;j j ; i; j ? 1) where (a i;j ; i; j 6 n) is a matrix and j = (j i ; i ? 1) is an i.i.d. sequence are completely characterized.
Matúš, František, Frantisek Matús
core  

Shape mixtures of multivariate skew-normal distributions

open access: yes
Classes of shape mixtures of independent and dependent multivariate skew-normal distributions are considered and some of their main properties are studied.
Loschi, Rosangela H.   +2 more
core  

Home - About - Disclaimer - Privacy