Results 11 to 20 of about 488,222 (301)

The consequences of non-normality [PDF]

Nuclear Physics B - Proceedings Supplements, 2002
Lattice2001(theorydevelop)
Hip, I., Lippert, Th., Neff, H., Schilling, K., Schroers, W.   +4 more
openaire   +4 more sources

Construction Skewness Correction the And R Control Chart under Non –Normality

Zanco Journal of Humanity Sciences, 2022
Shewhart's charts are powerful tools in Statistical Process Control (SPC) and are widely used. Usually, Shewhart's charts are depending on the normality assumption.
Kawa M. Jamal Rashid
doaj   +1 more source

A Comparison of Logistic Regression Models for DIF Detection in Polytomous Items: The Effect of Small Sample Sizes and Non-Normality of Ability Distributions

International Journal of Assessment Tools in Education, 2016
This study investigated the effectiveness of logistic regression models to detect uniform and non-uniform DIF in polytomous items across small sample sizes and non-normality of ability distributions.
M. David Miller, Walter L. Leite, Yasemin Kaya   +2 more
doaj   +2 more sources

Application of a Hermite-based measure of non-Gaussianity to normality tests and independent component analysis

Frontiers in Neuroinformatics, 2023
In the analysis of neural data, measures of non-Gaussianity are generally applied in two ways: as tests of normality for validating model assumptions and as Independent Component Analysis (ICA) contrast functions for separating non-Gaussian signals ...
Parul Jain, Parul Jain, Bruce W. Knight, Jonathan D. Victor, Jonathan D. Victor   +4 more
doaj   +1 more source

On non-normality and classification of amplification mechanisms in stability and resolvent analysis [PDF]

, 2017
We seek to quantify non-normality of the most amplified resolvent modes and predict their features based on the characteristics of the base or mean velocity profile.
Dawson, Scott T. M., McKeon, Beverley J., Rosenberg, Kevin, Symon, Sean   +3 more
core   +3 more sources

A pragmatic approach to multi-modality and non-normality in fixation duration studies of cognitive processes

Journal of Eye Movement Research, 2008
Interpreting eye-fixation durations in terms of cognitive processing load is complicated by the multimodality of their distribution. An important source of multimodality is the distinction between single and multiple fixations to the same object.
Chie Nakatani, Cees van Leeuwen
doaj   +1 more source

Filtered overlap: speedup, locality, kernel non-normality and Z_A~1 [PDF]

, 2005
We investigate the overlap operator with a UV filtered Wilson kernel. The filtering leads to a better localization of the operator even on coarse lattices and with the untuned choice $\rho=1$.
A. Borici, C.W. Bernard, Christian Hoelbling, K. Jansen, Lattice Hadron Physics collaboration, N. Cundy, NPLQCD collaboration, P. Hasenfratz ., P. Hernandez, R.C. Brower, RBC collaboration, S. Durr, Stephan Dürr, T. DeGrand, T.G. Kovacs, U. Wenger, UKQCD collaboration, Urs Wenger, W. Bietenholz, W. Bietenholz, W. Kerler, Y. Kikukawa, Z. Fodor, Z. Fodor   +23 more
core   +1 more source

The normality assumption on between-study random effects was questionable in a considerable number of Cochrane meta-analyses

BMC Medicine, 2023
Background Studies included in a meta-analysis are often heterogeneous. The traditional random-effects models assume their true effects to follow a normal distribution, while it is unclear if this critical assumption is practical.
Ziyu Liu, Fahad M. Al Amer, Mengli Xiao, Chang Xu, Luis Furuya-Kanamori, Hwanhee Hong, Lianne Siegel, Lifeng Lin   +7 more
doaj   +1 more source

A maximum likelihood approach for asymmetric non-normal data using a transformational measurement model

Frontiers in Applied Mathematics and Statistics, 2023
A transformational measurement model for structural equation modeling (SEM) of asymmetric non-normal data is proposed. This measurement model aligns with the expectation-maximization (EM) algorithm of the maximum likelihood estimation (MLE) method ...
Karl Schweizer, Christine DiStefano, Brian French   +2 more
doaj   +1 more source

On a generalized approach to the linear stability of spatially nonuniform thin film flows [PDF]

, 2003
The presence of a deformable free surface in thin films driven to spread by body or shear forces gives rise to base states that are spatially nonuniform.
Davis, Jeffrey M., Troian, Sandra M.
core   +1 more source