Results 21 to 30 of about 210,779 (252)
Digital Image Watermarking using Singular Value Decomposition [PDF]
Al-Rafidain Journal of Computer Sciences and Mathematics, 2010 This paper presents a digital image watermarking that applied theory of linear algebra called “Singular Value Decomposition (SVD)” to digital image watermarking .SVD watermarking scheme, which successfully embeds watermarks into images imperceptible ...
Sura Sheriff
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Exel's crossed product for non-unital C*-algebras [PDF]
, 2009 We consider a family of dynamical systems (A,alpha,L) in which alpha is an endomorphism of a C*-algebra A and L is a transfer operator for \alpha. We extend Exel's construction of a crossed product to cover non-unital algebras A, and show that the C ...
Adji +12 more
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Annales de Didactique et de Sciences Cognitives, 2016 This first article of a series of two presents on teaching elementary algebra different standpoints, not always easy to reconcile with each other; a second article will cover activities to promote the learning of algebra.
Raymond Duval, François Pluvinage
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Carrollian and celestial spaces at infinity
Journal of High Energy Physics, 2022 We show that the geometry of the asymptotic infinities of Minkowski spacetime (in d + 1 dimensions) is captured by homogeneous spaces of the Poincaré group: the blow-ups of spatial (Spi) and timelike (Ti) infinities in the sense of Ashtekar-Hansen and a ...
José Figueroa-O’Farrill +3 more
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LAND COVER CHANGE DETECTION BASED ON GENETICALLY FEATURE AELECTION AND IMAGE ALGEBRA USING HYPERION HYPERSPECTRAL IMAGERY [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015 The Earth has always been under the influence of population growth and human activities. This process causes the changes in land use. Thus, for optimal management of the use of resources, it is necessary to be aware of these changes.
S. T. Seydi, M. Hasanlou
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A Survey of Satisfiability Modulo Theory [PDF]
, 2016 Satisfiability modulo theory (SMT) consists in testing the satisfiability of first-order formulas over linear integer or real arithmetic, or other theories.
A Albarghouthi +37 more
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Closed form solution for p-curves in SO(4) [PDF]
, 2012 This paper describes the solution for p-curves in SO(4) and gives its closed form. The rotational symmetry was exploited in order to simplify the algebra.
Biggs, James +2 more
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The Continuum Between Temperament and Mental Illness as Dynamical Phases and Transitions
Frontiers in Psychiatry, 2021 The full range of biopsychosocial complexity is mind-boggling, spanning a vast range of spatiotemporal scales with complicated vertical, horizontal, and diagonal feedback interactions between contributing systems.
William Sulis
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On Max-Plus Algebra and Its Application on Image Steganography
The Scientific World Journal, 2018 We propose a new steganography method to hide an image into another image using matrix multiplication operations on max-plus algebra. This is especially interesting because the matrix used in encoding or information disguises generally has an inverse ...
Kiswara Agung Santoso +2 more
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Spatial-temporal evolution of landscape degradation on the Guamá River Basin, Brazil
Revista Brasileira de Ciências Ambientais, 2021 The goal of this study was to determine the anthropization evolution of the Guamá river basin in the years 2000, 2008 and 2018 by means of the Anthropic Transformation Index.
Tatiane Camila Martins Silva +2 more
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