Results 1 to 10 of about 71,066 (161)

KURTOSIS

Pesquimat, 2014
This work reviews the literature on kurtosis from Pearson'e definition in the early 1900's to our days. The evolution of the concept of kurtosis is described and the different ways of quantifying it are compared; graphs that help to understand the ideas ...
María Edith Seier Zúñiga
doaj   +4 more sources

Comparative Study of Monoexponential, Intravoxel Incoherent Motion, Kurtosis, and IVIM-Kurtosis Models for the Diagnosis and Aggressiveness Assessment of Prostate Cancer

Frontiers in Oncology, 2020
Objective: This study aimed to compare the potential of monoexponential model (MEM), intravoxel incoherent motion (IVIM) model, kurtosis model, and IVIM–kurtosis model in the diagnosis and aggressiveness assessment of prostate cancer (PCa).Materials and ...
Ming Liu, Kaining Shi, Chunmei Li
exaly   +3 more sources

A Novel Approach for Segment-Length Selection Based on Stationarity to Perform Effective Connectivity Analysis Applied to Resting-State EEG Signals

Sensors, 2022
Connectivity among different areas within the brain is a topic that has been notably studied in the last decade. In particular, EEG-derived measures of effective connectivity examine the directionalities and the exerted influences raised from the ...
Leonardo Góngora, Alessia Paglialonga, Alfonso Mastropietro, Giovanna Rizzo, Riccardo Barbieri   +4 more
doaj   +1 more source

Spatial Evolution of Skewness and Kurtosis of Unidirectional Extreme Waves Propagating over a Sloping Beach

Journal of Marine Science and Engineering, 2022
The understanding of the occurrence of extreme waves is crucial to simulate the growth of waves in coastal regions. Laboratory experiments were performed to study the spatial evolution of the statistics of group-focused waves that have a relatively broad-
Iskander Abroug, Reine Matar, Nizar Abcha   +2 more
doaj   +1 more source

GRANULOMETRIC ANALYSIS OF THE SARMATIAN SANDS FROM THE MOESIAN PLATFORM DESCRIBING ASPECTS OF THE DEPOSITIONAL ENVIRONMENT [PDF]

Romanian Journal of Petroleum & Gas Technology, 2023
The Moesian Platform pertaining to Romania gathers numerous petroleum and gas reservoirs of various sizes and types of hydrocarbons, from black oil to shallow gas reservoirs. They are sited in reservoir rocks having different lithologies (limestone, sand,
Jacota Dan-Romulus
doaj   +1 more source

Constrained Nonnegative Matrix Factorization for Blind Hyperspectral Unmixing Incorporating Endmember Independence

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Hyperspectral unmixing (HU) has become an important technique in exploiting hyperspectral data since it decomposes a mixed pixel into a collection of endmembers weighted by fractional abundances.
E. M. M. B. Ekanayake, H. M. H. K. Weerasooriya, D. Y. L. Ranasinghe, S. Herath, B. Rathnayake, G. M. R. I. Godaliyadda, M. P. B. Ekanayake, H. M. V. R. Herath   +7 more
doaj   +1 more source

Correlation tensor magnetic resonance imaging

NeuroImage, 2020
Diffusional Kurtosis Magnetic Resonance Imaging (DKI) quantifies the extent of non-Gaussian water diffusion, which has been shown to be a sensitive biomarker for microstructure in health and disease.
Rafael Neto Henriques, Sune Nørhøj Jespersen, Noam Shemesh   +2 more
doaj   +1 more source

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

Electronic 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

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