Results 21 to 30 of about 116,618 (260)

R/S method application in neurological speech disorders analyses [PDF]

open access: yesКомпьютерные исследования и моделирование, 2014
Based on modified rescaled range scale computation algorithm, the technique of Hurst exponent and its characteristic time estimation is proposed. The approach of increase the accuracy and simplification automatic Hurst exponent calculation is developed ...
Nikolay Petrovich Kuzenkov   +1 more
doaj   +1 more source

Biased binomial assessment of cross-validated estimation of classification accuracies illustrated in diagnosis predictions

open access: yesNeuroImage: Clinical, 2014
Multivariate classification is used in neuroimaging studies to infer brain activation or in medical applications to infer diagnosis. Their results are often assessed through either a binomial or a permutation test.
Quentin Noirhomme   +8 more
doaj   +1 more source

Permutation Tests for Regression, ANOVA, and Comparison of Signals: The permuco Package

open access: yesJournal of Statistical Software, 2021
Recent methodological researches produced permutation methods to test parameters in presence of nuisance variables in linear models or repeated measures ANOVA. Permutation tests are also particularly useful to overcome the multiple comparisons problem as
Jaromil Frossard, Olivier Renaud
doaj   +1 more source

Differential Network Testing Reveals Diverging Dynamics of Organ System Interactions for Survivors and Non-survivors in Intensive Care Medicine

open access: yesFrontiers in Physiology, 2022
Statistical network analyses have become popular in many scientific disciplines, where an important task is to test for differences between two networks. We describe an overall framework for differential network testing procedures that vary regarding (1)
Roman Schefzik   +9 more
doaj   +1 more source

A statistical test of independence in choice data with small samples

open access: yesJudgment and Decision Making, 2012
This paper develops tests of independence and stationarity in choice data collected with small samples. The method builds on the approach of Smith and Batchelder (2008).
Michael H. Birnbaum
doaj   +1 more source

Un algorithme efficace pour la comparaison de deux moyennes indépendantes par combinatoire exhaustive; Highly efficient algorithms for the exact randomization test of the difference between two independent means [PDF]

open access: yesTutorials in Quantitative Methods for Psychology, 2012
Exact randomization tests in their naïve implementation impose a computation burden that makes them generally prohibitive, forcing the researcher to choose between approximate (i.e.
Pierre Ferland, Louis Laurencelle
doaj  

Causal Discovery and Validation in Summer Weather Data with a Conceptual Extension to Cooling Energy Use

open access: yesBuildings
Traditional data-driven approaches emphasize input–output correlations and neglect dependencies among inputs, risking missed insights into key drivers of energy performance.
Han-Gyeong Chu, Hye-Gi Kim, Deuk-Woo Kim
doaj   +1 more source

Nonparametric Inference for Multivariate Data: The R Package npmv

open access: yesJournal of Statistical Software, 2017
We introduce the R package npmv that performs nonparametric inference for the comparison of multivariate data samples and provides the results in easy-to-understand, but statistically correct, language.
Woodrow W. Burchett   +3 more
doaj   +1 more source

eQTLMAPT: Fast and Accurate eQTL Mediation Analysis With Efficient Permutation Testing Approaches

open access: yesFrontiers in Genetics, 2020
Expression quantitative trait locus (eQTL) analyses are critical in understanding the complex functional regulatory natures of genetic variation and have been widely used in the interpretation of disease-associated variants identified by genome-wide ...
Tao Wang   +6 more
doaj   +1 more source

Permutation-based methods for mediation analysis in studies with small sample sizes [PDF]

open access: yesPeerJ, 2020
Background Mediation analysis can be used to evaluate the effect of an exposure on an outcome acting through an intermediate variable or mediator. For studies with small sample sizes, permutation testing may be useful in evaluating the indirect effect (i.
Miranda E. Kroehl   +2 more
doaj   +2 more sources

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