Results 61 to 70 of about 114 (114)

The best lower bound of sample correlation coefficient with ordered restriction

open access: yes
In this paper, it is shown that the sample correlation coefficient between two sets of ordered samples x(1) [less-than-or-equals, slant] ... [less-than-or-equals, slant] x(n) and y(1) [less-than-or-equals, slant] ...
Hwang, Tea-Yuan, Hu, Chin-Yuan
core  

Construction of asymmetric multivariate copulas

open access: yes
In this paper we introduce two methods for the construction of asymmetric multivariate copulas. The first is connected with products of copulas. The second approach generalises the Archimedean copulas.
Liebscher, Eckhard
core  

Optimal discriminant functions for normal populations

open access: yes
A class of discriminant rules which includes Fisher's linear discriminant function and the likelihood ratio criterion is defined. Using asymptotic expansions of the distributions of the discriminant functions in this class, we derive a formula for cut ...
Aoshima, Makoto, Wakaki, Hirofumi
core  

Asymptotic expansions of test statistics for dimensionality and additional information in canonical correlation analysis when the dimension is large

open access: yes
This paper examines asymptotic expansions of test statistics for dimensionality and additional information in canonical correlation analysis based on a sample of size N=n+1 on two sets of variables, i.e., and .
Sakurai, Tetsuro
core  

Successive direction extraction for estimating the central subspace in a multiple-index regression

open access: yes
In this paper we propose a dimension reduction method for estimating the directions in a multiple-index regression based on information extraction. This extends the recent work of Yin and Cook [X. Yin, R.D.
Yin, Xiangrong   +2 more
core  

Generalized covariance inequalities

open access: yesOpen Mathematics, 2011
Matuła Przemysław, Ziemba Maciej
doaj   +1 more source

Eigenanalysis on a bivariate covariance kernel

open access: yes
Certain constructions of copulas can be interpreted as an eigendecomposition of a kernel. We study some properties of the eigenfunctions and their integrals of a covariance kernel related to a bivariate distribution.
Cuadras, Carles M., Cuadras, Daniel
core  

A new dependence ordering with applications

open access: yes
In this paper, we introduce a new copula-based dependence order to compare the relative degree of dependence between two pairs of random variables. Relationship of the new order to the existing dependence orders is investigated.
Kochar, Subhash, Xu, Maochao
core  

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