Results 21 to 30 of about 2,981,187 (316)
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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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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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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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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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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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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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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The pivotal cover and Frobenius-Schur indicators [PDF]
, 2015 In this paper, we introduce the notion of the pivotal cover $\mathcal{C}^{\mathsf{piv}}$ of a left rigid monoidal category $\mathcal{C}$ to develop a theoretical foundation for the theory of Frobenius-Schur (FS) indicators in "non-pivotal" settings.
Shimizu, Kenichi
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Multicriteria analysis for sources of renewable energy using data from remote sensing [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015 Renewable energy sources are major components of the strategy to reduce harmful emissions and to replace depleting fossil energy resources. Data from remote sensing can provide information for multicriteria analysis for sources of renewable energy ...
L. Matejicek
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Remote Sensing, 2023 This paper presents a multi-temporal comparison of high-resolution 3D digital models from two urban areas susceptible to landslides in three time periods. The study areas belong to the São Paulo landslide risk mapping database and are named “CEU Paz” (CP)
Amanda Mendes de Sousa +3 more
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