Results 31 to 40 of about 73,208 (162)

Mastering the Body and Tail Shape of a Distribution

open access: yesMathematics, 2021
The normal distribution and its perturbation have left an immense mark on the statistical literature. Several generalized forms exist to model different skewness, kurtosis, and body shapes.
Matthias Wagener   +2 more
doaj   +1 more source

A Hybrid EMD-Kurtosis Method for Estimating Fetal Heart Rate from Continuous Doppler Signals

open access: yesFrontiers in Physiology, 2017
Monitoring of fetal heart rate (FHR) is an important measure of fetal wellbeing during the months of pregnancy. Previous works on estimating FHR variability from Doppler ultrasound (DUS) signal mainly through autocorrelation analysis showed low accuracy ...
Haitham M. Al-Angari   +4 more
doaj   +1 more source

Classification between Elderly Voices and Young Voices Using an Efficient Combination of Deep Learning Classifiers and Various Parameters

open access: yesApplied Sciences, 2021
The objective of this research was to develop deep learning classifiers and various parameters that provide an accurate and objective system for classifying elderly and young voice signals.
Ji-Yeoun Lee
doaj   +1 more source

Clinical and imaging markers for the prognosis of acute ischemic stroke

open access: yesFrontiers in Neurology
Background and purposeSignificant differences in the outcomes observed in patients with acute ischemic stroke (AIS) have led to research investigations for identifying the predictors.
Chenyang Pei   +7 more
doaj   +1 more source

EM Algorithm in the Modified Slash Power Maxwell Distribution with an Application

open access: yesAxioms
In this article, we introduce a distribution that is an extension of the Power Maxwell (PM) distribution, which is based on the quotient of two independent random variables. These are the PM and a gamma distribution, respectively. In this way, the result
Francisco A. Segovia   +4 more
doaj   +1 more source

Daughter Coloured Noises: The Legacy of Their Mother White Noises Drawn from Different Probability Distributions

open access: yesFractal and Fractional, 2023
White noise is fundamentally linked to many processes; it has a flat power spectral density and a delta-correlated autocorrelation. Operators acting on white noise can result in coloured noise, whether they operate in the time domain, like fractional ...
Evangelos Bakalis   +2 more
doaj   +1 more source

gKFA: a geometric framework for kurtosis fractional anisotropy

open access: yesScientific Reports
Diffusion kurtosis imaging (DKI) extends diffusion tensor imaging (DTI) by incorporating non-Gaussian diffusion effects through a fourth-order kurtosis tensor.
Sumit Kaushik   +4 more
doaj   +1 more source

Semi-Continuous Spatial Statistical Analysis Using AIS Data for Vessel Traffic Flow Characteristics in Fairway

open access: yesJournal of Marine Science and Engineering, 2021
As high vessel traffic in fairways is likely to cause frequent marine accidents, understanding vessel traffic flow characteristics is necessary to prevent marine accidents in fairways.
Jong Kwan Kim
doaj   +1 more source

A New Goodness of Fit Test for Multivariate Normality and Comparative Simulation Study

open access: yesMathematics, 2021
The testing of multivariate normality remains a significant scientific problem. Although it is being extensively researched, it is still unclear how to choose the best test based on the sample size, variance, covariance matrix and others.
Jurgita Arnastauskaitė   +2 more
doaj   +1 more source

Investigation on the Surface Quality Obtained during Trochoidal Milling of 6082 Aluminum Alloy

open access: yesMachines, 2021
Surface quality has always been an important goal in the manufacturing industry, as it is not only related to the achievement of appropriate geometrical tolerances but also plays an important role in the tribological behavior of the surface as well as ...
Nikolaos E. Karkalos   +4 more
doaj   +1 more source

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