Results 21 to 30 of about 4,106,202 (251)

Unique Aspects of Usage of the Quadratic Cryptanalysis Method to the GOST 28147-89 Encryption Algorithm

International Journal of Informatics, Information System and Computer Engineering, 2022
In this article, issues related to the application of the quadratic cryptanalysis method to the five rounds of GOST 28147-89 encryption algorithm are given.
Bardosh Akhmedov, Rakhmatillo Aloev
doaj   +1 more source

Spatial and Seasonal Assessment of Water Quality in the Lobo Stream River Basin, Brazil Using Multivariate Statistical Techniques

Anais da Academia Brasileira de Ciências, 2021
In view of the complexity of the processes associated to water quality, this study objective is to identify the main factors related to spatial and seasonal variability in water courses of the Lobo Stream River Basin.
GABRIELA L. NEVES, TAINÁ T. GUIMARÃES, PHELIPE S. ANJINHO, MARIANA A.G.A. BARBOSA, ALLITA R. DOS SANTOS, JORIM S. VIRGENS FILHO, FREDERICO F. MAUAD   +6 more
doaj   +1 more source

Portfolio selection based on graphs: Does it align with Markowitz-optimal portfolios?

Dependence Modeling, 2018
Some empirical studies suggest that the computation of certain graph structures from a (large) historical correlation matrix can be helpful in portfolio selection.
Hüttner Amelie, Mai Jan-Frederik, Mineo Stefano   +2 more
doaj   +1 more source

Assessment of regional development level in Romania through Principal component analysis [PDF]

Journal of Central European Agriculture
This paper primarily aims to address aspects related to regional development in Romania, which has become a challenge both at the national and global level. The way regional development is approached is different, depending on the particularities of each
Ancuta Rotaru, Cristina Hegedus, Ioana Pop, Sorin Vatca, Anamaria Vatca, Luisa Andronie   +5 more
doaj   +1 more source

Copulas with Prescribed Correlation Matrix [PDF]

, 2015
1 Foreword Marc Yor was also an explorer in the jungle of probability distributions, either in discovering a new species, or in landing on an unexpected simple law after a difficult trip on stochastic calculus: we remember his enthousiam after proving that ∞ 0 exp(2B(t) − 2st)dt −1 is gamma distributed with shape parameter s ('The first natural ...
Devroye, Luc, Letac, Gérard
openaire   +2 more sources

matrix-toolbox/CHM_scripts: v2.1.1

, 2023
various CHM ...
matrix-toolbox
core   +1 more source

Correlation matrix.

, 2018
Correlation matrix.
Thomas Noe (4846711), Nir Vulkan (3369122)   +1 more
core   +5 more sources

matrix-toolbox/CHM_CATALOG: v2.2.0

, 2023
Sinkhorn matrices, symmetric and Hermitian ...
matrix-toolbox
core   +1 more source

Explicit solutions to correlation matrix completion problems, with an application to risk management and insurance [PDF]

Royal Society Open Science, 2018
We derive explicit solutions to the problem of completing a partially specified correlation matrix. Our results apply to several block structures for the unspecified entries that arise in insurance and risk management, where an insurance company with ...
Dan I. Georgescu, Nicholas J. Higham, Gareth W. Peters   +2 more
doaj   +1 more source

Correlation of Matrix Metalloproteinases and Tissue Inhibitors of Matrix Metalloproteinase Expression in Ileal Carcinoids, Lymph Nodes and Liver Metastasis with Prognosis and Survival [PDF]

, 2009
Purpose: Ileal carcinoids are gut epithelial tumors originating from serotonin-containing enterochromaffin (EC) cells. Therapeutic options for effectively inhibiting the growth and spread of metastatic carcinoids are still limited.
Braun, Thomas, Besig, Sophie, Baur, Dorothee M., Prinz, Christian, Rad, Roland, Hoefler, Heinz, Höfler, Heinz, Voland, Petra, Perren, Aurel, Langer, Rupert, Voland, P;Besig, S;Rad, R;Braun, T;Baur, DM;Perren, A;Langer, R;Höfler, H;Prinz, C, Voland, Petra;Besig, Sophie;Rad, Roland;Braun, Thomas;Baur, Dorothee M.;Perren, Aurel;Langer, Rupert;Höfler, Heinz;Prinz, Christian   +11 more
core   +2 more sources