Results 21 to 30 of about 277,143 (293)

Investigation of intermittency in magnetohydrodynamics and solar wind turbulence: scale-dependent kurtosis [PDF]

, 2011
The behavior of scale-dependent (or filtered) kurtosis is studied in the solar wind using magnetic field measurements from the ACE and Cluster spacecraft at 1 AU.
Matthaeus, William H., Osman, Kareem T., Oughton, Sean, Wan, Minping   +3 more
core   +2 more sources

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

Revstat 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 , Václav Sládek , Filip Habarta   +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.)

Electronic 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

Mathematics, 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, Yolanda M. Gómez, Osvaldo Venegas, Inmaculada Barranco-Chamorro, Héctor W. Gómez   +4 more
doaj   +1 more source

Modification of the halo mass function by kurtosis associated with primordial non-Gaussianity [PDF]

, 2011
We study the halo mass function in the presence of the kurtosis type of primordial non-Gaussianity. The kurtosis corresponds to the trispectrum as defined in Fourier space.
Barkana, Bartolo, Bartolo, Bryan, Byrnes, Cayon, Chongchitnan, Chongchitnan, Colberg, De Simone, Desjacques, D’Amico, Enqvist, Enqvist, Fuller, Gangui, Grossi, Hoyle, Huang, Ichikawa, Jee, Joseph Silk, Juszkiewicz, Kamionkowski, Komatsu, Komatsu, Komatsu, Langlois, LoVerde, Lyth, Maggiore, Maggiore, Matarrese, Moroi, Naoshi Sugiyama, Park, Rosati, Saleem Zaroubi, Salopek, Shandarin, Shuichiro Yokoyama, Slosar, Smidt, Somerville, Somerville, Sugiyama, Sugiyama, Suyama, Suyama, Tseliakhovich, Verde, Verde, Verde, Wagner, Yoshida   +54 more
core   +2 more sources

Kurtosis

, 2021
In statistics, kurtosis is a measure of the probability distribution of a random variable or a vector of random variables. As mean measures the centrality and variance measures the spreadness of a probability distribution, kurtosis measures the tailedness of the distribution.
Zhiyong Zhang, Wen Qu
openaire   +1 more source

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

Mathematics, 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, Luis Firinguetti-Limone, Diego I. Gallardo, Héctor W. Gómez   +3 more
doaj   +1 more source

Autoregressive Conditional Kurtosis [PDF]

Journal 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, Burke, Simon P., Heravi, Saeed, Persand, Gitanjali   +3 more
openaire   +2 more sources

Perbandingan Nilai Ujian Nasional dan Ujian Sekolah Mata Pelajaran Matematika SMA Program IPA Tahun Pelajaran 2010/2011

Jurnal Pendidikan dan Kebudayaan, 2011
The purpose of this research is to compare the scores of National Exam and the scores from schools and also to identify the characteristics of Mathematics items for Senior High Schools at IPA programme.
Fahmi --
doaj   +1 more source

Applying kurtosis-adjusted equivalent continuous A-weighted sound pressure level to evaluate risk of occupational hearing loss associated with non-steady state noise

环境与职业医学, 2022
BackgroundEquivalent continuous A-weighted sound pressure level is not appropriate for evaluating the risk of non-steady noise exposure, and need to be corrected by noise time-domain structure, but the correction method and its applicability need to be ...
Xiangjing GAO, Hong REN, Weiming YUAN, Changjian QUAN, Hongwei XIE, Yuqing LUAN, Meibian ZHANG   +6 more
doaj   +1 more source