Results 1 to 10 of about 23,045 (305)

On a Vector-Valued Measure of Multivariate Skewness [PDF]

open access: yesSymmetry, 2021
The canonical skewness vector is an analytically simple function of the third-order, standardized moments of a random vector. Statistical applications of this skewness measure include semiparametric modeling, independent component analysis, model-based clustering, and multivariate normality testing.
Nicola Loperfido
openaire   +4 more sources

On Multivariate Skewness and Kurtosis [PDF]

open access: yesSankhya A, 2020
AbstractA 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. Such a treatment helps reveal many subtle features and inter-connections among the existing indexes as well as some deficiencies ...
Jammalamadaka, Sreenivasa Rao   +2 more
openaire   +5 more sources

Multivariate measures of skewness for the skew-normal distribution

open access: yesJournal of Multivariate Analysis, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
BALAKRISHNAN N, SCARPA, BRUNO
openaire   +4 more sources

Sparse Multivariate Analysis Reveals Dissociable White Matter Networks for Cognitive and Motor Processing Speed [PDF]

open access: yesBrain Sciences
Background: Reaction time (RT) is a fundamental measure of information processing speed in cognitive neuroscience and is influenced by both structural and functional brain properties.
Shahwar Yasir   +6 more
doaj   +2 more sources

AI-Carbon-Energy: Spillover effects and drivers in interconnected markets [PDF]

open access: yesiScience
Summary: This study explores the spillover effects between the AI market, international carbon market, and energy markets based on a time-varying parameter vector autoregression model.
Mingming Zhang   +3 more
doaj   +2 more sources

On relative skewness for multivariate distributions [PDF]

open access: yesTEST, 2015
Félix Belzunce, Julio Mulero and José M. Ruiz acknowledge support received from the Ministerio de Economía y Competitividad (Spain) under grant MTM2012-34023-FEDER.
Belzunce, Félix   +3 more
openaire   +3 more sources

Skewness and kurtosis of multivariate Markov-switching processes [PDF]

open access: yesComputational Statistics & Data Analysis, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
FIORENTINI, GABRIELE   +2 more
core   +3 more sources

A Treatment of Multivariate Skewness, Kurtosis, and Related Statistics

open access: yesJournal of Multivariate Analysis, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Klar, Bernhard
openaire   +4 more sources

A multiparameter diagnostic model based on MRI volumetric ADC histogram and clinical variables accurately differentiates thymic epithelial tumors from mediastinal lymphomas [PDF]

open access: yesBMC Medical Imaging
Background The management and prognosis of each type of anterior mediastinal mass differ substantially. Radical thymectomy is regarded as the preferred surgical approach for resectable thymic epithelial tumors (TETs), whereas chemotherapy is the ...
Luna Wang   +5 more
doaj   +2 more sources

Comparison of normality test methods for some soil properties in the arid land of South Khorasan. [PDF]

open access: yesDesert, 2023
Statistical assumptions are the basis of many univariate and multivariate statistical tests. Normality is the most basic assumption of multivariate analysis in plant ecology.
M. Rostampour, F. Azarmi-Atajan
doaj   +1 more source

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