Results 11 to 20 of about 672,008 (194)

On Multivariate Skewness and Kurtosis [PDF]

open access: yesSankhya A, 2021
A unified treatment of all currently available cumulant-based indexes of multivariate skewness and kurtosis is provided here, expressing them in terms of the third and fourth-order cumulant vectors respectively.
Jammalamadaka, Sreenivasa Rao   +2 more
core   +5 more sources

Sub-dimensional Mardia measures of multivariate skewness and kurtosis [PDF]

open access: yesJournal of Multivariate Analysis, 2022
The Mardia measures of multivariate skewness and kurtosis summarize the respective characteristics of a multivariate distribution with two numbers. However, these measures do not reflect the sub-dimensional features of the distribution.
Chowdhury, Joydeep   +3 more
core   +6 more sources

Tests Based on Kurtosis for Multivariate Normality

open access: yesAustrian Journal of Statistics, 2019
In this paper, we first transform a multivariate normal random vector into a random vector with elements that are approximately independent standard normal random variables.
Danush Kanchana Wijekularathna   +2 more
doaj   +3 more sources

A generalized multivariate kurtosis ordering and its applications [PDF]

open access: yesJournal of Multivariate Analysis, 2012
It has been commonly admitted that the meaning of a descriptive feature of distributions is given by an ordering and that the measures for this feature are meaningful only if they preserve the ordering.
Wang, Jin, Zhou, Weihua
core   +4 more sources

A Treatment of Multivariate Skewness, Kurtosis, and Related Statistics [PDF]

open access: yesJournal of Multivariate Analysis, 2002
This paper gives a unified treatment of the limit laws of different measures of multivariate skewness and kurtosis which are related to components of Neyman's smooth test of fit for multivariate normality.
Klar, Bernhard
core   +4 more sources

Nonparametric multivariate kurtosis and tailweight measures [PDF]

open access: yesJournal of Nonparametric Statistics, 2005
by NSF Grant DMS-0103698 is gratefully acknowledged. For nonparametric exploration or description of a distribution, the treatment of location, spread, symmetry and skewness is followed by characterization of kurtosis.
Jin Wang, Robert Serfling
core   +2 more sources

COMPARISON OF ULTRASOUND IMAGE FILTERING METHODS BY MEANS OF MULTIVARIABLE KURTOSIS

open access: yesImage Analysis and Stereology, 2017
Comparison of the quality of despeckled US medical images is complicated because there is no image of a human body that would be free of speckles and could serve as a reference.
Mariusz Nieniewski, Paweł Zajączkowski
doaj   +5 more sources

Multivariate skewness and kurtosis measures with an application in ICA [PDF]

open access: yesJournal of Multivariate Analysis, 2008
In this paper skewness and kurtosis characteristics of a multivariate p-dimensional distribution are introduced. The skewness measure is defined as a p-vector while the kurtosis is characterized by a p×p-matrix.
Kollo, Tõnu
core   +3 more sources

Multivariate Skewness and Kurtosis [PDF]

open access: yes, 1983
13 pages, 1 article*Multivariate Skewness and Kurtosis* (Schwager, Steven J.) 13 ...
Cornell University. Dept. of Biological Statistics and Computational Biology.   +3 more
core   +6 more sources

Modeling Multivariate Financial Series and Computing Risk Measures via Gram–Charlier-Like Expansions

open access: yesRisks, 2020
This paper develops an approach based on Gram–Charlier-like expansions for modeling financial series to take in due account features such as leptokurtosis. A Gram–Charlier-like expansion adjusts the moments of interest of a given distribution via its own
Maria Grazia Zoia   +2 more
doaj   +1 more source

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