Results 21 to 30 of about 602,886 (284)

Bootstrap Testing of the Rank of a Matrix via Least Squared Constrained Estimation [PDF]

open access: yes, 2013
In order to test if an unknown matrix has a given rank (null hypothesis), we consider the family of statistics that are minimum squared distances between an estimator and the manifold of fixed-rank matrix.
Delyon, Bernard, Portier, François
core   +3 more sources

Testing Multivariate Normality Based on F-Representative Points

open access: yesMathematics, 2022
The multivariate normal is a common assumption in many statistical models and methodologies for high-dimensional data analysis. The exploration of approaches to testing multivariate normality never stops.
Sirao Wang   +3 more
doaj   +1 more source

Network intrusion detection using hybrid machine learning methods

open access: yesMokslas: Lietuvos Ateitis, 2023
Network intrusion detection is a relevant cybersecurity research field. The growing number of intrusions requires more sophisticated methods to protect computer networks.
Karina Čiurlienė   +1 more
doaj   +1 more source

A symmetrical method to obtain shear moduli from microrheology [PDF]

open access: yes, 2017
Passive microrheology typically deduces shear elastic loss and storage moduli from displacement time series or mean-squared displacement (MSD) of thermally fluctuating probe particles in equilibrium materials.
Kilfoil, Maria L.   +3 more
core   +5 more sources

A Case-Control Study of the Relationship Between Genetic Polymorphism and Cretinism in Xinjiang

open access: yesPharmacogenomics and Personalized Medicine, 2023
Jia Huang,1,2,* Haiyan Wu,2,* Guiqiang Zhao,3 Yan Ma,1 Yunping An,4 Li Sun,5 Fuye Li,1 Shengling Wang2 1Department of Public Health, Xinjiang Medical University, Urumqi, Xinjiang, 830054, People’s Republic of China; 2Division of Endemic Disease ...
Huang J   +7 more
doaj  

Use of Sensory Analysis of Beer in Marketing

open access: yesKvasný průmysl, 2015
When developing new food products, or when trying to improve their existing competitive position in the market it is necessary to determine how consumers perceive their quality. That is the purpose of so-called consumer evaluation of product quality, one
Pavel Čejka, Jana Olšovská
doaj   +1 more source

A DNA Damage Response Gene Panel for Different Histologic Types of Epithelial Ovarian Carcinomas and Their Outcomes

open access: yesBiomedicines, 2021
DNA damage response (DDR) is important for maintaining genomic integrity of the cell. Aberrant DDR pathways lead to accumulation of DNA damage, genomic instability and malignant transformations.
Ying-Cheng Chiang   +10 more
doaj   +1 more source

A geometric test for the analysis of contingency tables [PDF]

open access: yes, 2014
The Chi-squared test for contingency tables has good performance when sample sizes are sufficiently large but is not appropriate with small samples. When this condition is violated, Fisher’s exact test is often used as it is valid for all sample sizes ...
Quigley, John, Wilson, Kevin
core   +1 more source

A.N. Kolmogorov's defence of Mendelism

open access: yesGenetics and Molecular Biology, 2011
In 1939 N.I. Ermolaeva published the results of an experiment which repeated parts of Mendel's classical experiments. On the basis of her experiment she concluded that Mendel's principle that self-pollination of hybrid plants gave rise to segregation ...
Alan Stark, Eugene Seneta
doaj   +1 more source

Remember the Curse of Dimensionality: The Case of Goodness-of-Fit Testing in Arbitrary Dimension [PDF]

open access: yes, 2018
Despite a substantial literature on nonparametric two-sample goodness-of-fit testing in arbitrary dimensions spanning decades, there is no mention there of any curse of dimensionality. Only more recently Ramdas et al.
Arias-Castro, Ery   +2 more
core   +2 more sources

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