Results 11 to 20 of about 914,999 (265)
Improved approximation and visualization of the correlation matrix. [PDF]
Am Stat, 2023 20 pages, 4 ...
Graffelman J, de Leeuw J.
europepmc +6 more sources
Biplots for the correlation matrix. [PDF]
J Comput Graph StatThe visualization of the correlation matrix by means of biplots is considered. The classical centering operations, either by the overall mean, the column means, or row and column means are shown to be problematic for the visualisation of the correlation matrix, and sub-optimal in terms of goodness-of-fit. More flexible adjustments are possible by using
Graffelman J.
europepmc +3 more sources
Signal and noise in correlation matrix [PDF]
Physica A: Statistical Mechanics and its Applications, 2004 17 pages, 3 figures, corrected typos, revtex style changed to ...
Burda, Zdzisław +3 more
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Exact multi-matrix correlators [PDF]
Journal of High Energy Physics, 2008 13+1 pages; v1:minor improvements in presentation and refs added; v2: additional comments in finite N counting; v3: Final JHEP ...
Bhattacharyya, Rajsekhar +2 more
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Clasters and Correlations among the Eu Member States Regarding Agri-Food Foreign Trade
Apstract: Applied Studies in Agribusiness and Commerce, 2019 The European Union has a significant role in international trade but this is largely in the area of industrial goods. However, in the case of some agricultural commodities the EU applies tariffs, bans, or different restrictive measures; it manages ...
Nóra Gombkötő
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The Minimum Rank of a Correlation Matrix [PDF]
Proceedings of the National Academy of Sciences, 1944 Not ...
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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
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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 +6 more
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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 +2 more
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Assessment of regional development level in Romania through Principal component analysis [PDF]
Journal of Central European AgricultureThis 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 +5 more
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