Results 11 to 20 of about 99,233 (297)

Autoregressive Conditional Kurtosis [PDF]

open access: yesJournal of Financial Econometrics, 2005
This article proposes a new model for autoregressive conditional heteroscedasticity and kurtosis. Via a time-varying degrees of freedom parameter, the conditional variance and conditional kurtosis are permitted to evolve separately. The model uses only the standard Student’s t-density and consequently can be estimated simply using maximum likelihood ...
Brooks, Chris   +3 more
openaire   +4 more sources

Some remarks on Koziol’s kurtosis [PDF]

open access: yesJournal of Multivariate Analysis, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
LOPERFIDO, NICOLA MARIA RINALDO
openaire   +5 more sources

Frequency distribution and genetic variability for forage yield attributing traits in oats (Avena sativa L.)

open access: yesElectronic Journal of Plant Breeding, 2022
An experiment was conducted with 125 germplasm accessions and five check varieties of Oat (Avena sativa L.) in augmented design during rabi, 2019-20. Nineteen quantitative traits were studied for the assessment of genetic variability.
Rashmi Toppo and Mayuri Sahu*
doaj   +1 more source

Comparison of Estimates Using L and TL Moments and Other Robust Characteristics of Distributional Shape and Tail Heaviness

open access: yesRevstat Statistical Journal, 2023
Correct identification of a probability distribution is crucial in many areas of parametric statistics, inappropriate choice of the model can result in misleading or even incorrect decisions.
Ivana Malá   +2 more
doaj   +1 more source

Genetic architecture of F2 and identified transgressive segregants for yield and its component traits in bread wheat (Triticum aestivum L.)

open access: yesElectronic Journal of Plant Breeding, 2023
Two crosses of bread wheat viz., K 1006 x LOK 1 and PBW 343 x HUW 234 were investigated to explore the useful variability parameters, correlation along with inheritance study (skewness and kurtosis) in the segregating F2 and F3 population for yield and
Parul Gupta1* , Ravindra Prasad1 and Mohit Sharma2
doaj   +1 more source

The Slashed Power Half-Normal Distribution with Applications

open access: yesMathematics, 2022
In this paper, an extension of the power half-normal (PHN) distribution is introduced. This new model is built on the application of slash methodology for positive random variables.
Leonardo Barrios   +4 more
doaj   +1 more source

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   +3 more sources

An Extension of the Akash Distribution: Properties, Inference and Application

open access: yesMathematics, 2023
In this article we introduce an extension of the Akash distribution. We use the slash methodology to make the kurtosis of the Akash distribution more flexible. We study the general probability density function of this new model, some properties, moments,
Yolanda M. Gómez   +3 more
doaj   +1 more source

Kurtosis Constraints In Communication Over Fading Channels [PDF]

open access: yes, 2006
The kurtosis of a signal is a quantitative measure of how `peaky' it is. In this paper we consider two scenarios of communication over fading channels with kurtosis constraints: in the first, we analyze a non-coherent Rayleigh fading channel where the ...
Sibi Bhaskaran   +3 more
core   +2 more sources

Recognition method of metal fracture images based on Wavelet kurtosis and Relevance vector machine

open access: yesMATEC Web of Conferences, 2016
The useful information extracted from fracture images is the most fundamental problem of quantitative analysis and intelligent diagnosis of metal fracture.
Sun Yi, Li Zhinong, Yan Jingwen
doaj   +1 more source

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