Results 21 to 30 of about 534,723 (361)
A Novel Block-based Watermarking Scheme Using the SVD Transform
Algorithms, 2009 In this paper, a block-based watermarking scheme based on the Singular Value Decomposition (SVD) is proposed. Our watermark, a pseudo-random Gaussian sequence, is embedded by modifying the angles formed by the right singular vectors of each block of the ...
Alessandro Basso +4 more
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Monomiality, orthogonal and pseudo-orthogonal polynomials [PDF]
International Mathematical Forum, 2006 We reconsider some families of orthogonal polynomials, within the framework of the so called monomiality principle. We show that the associated operational formalism allows the framing of the polynomial orthogonality using an algebraic point of view. Within such a frame- work, we introduce families of pseudo-orthogonal polynomials, namely polynomials,
GERMANO, Bruna +3 more
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Independent representations of ipsilateral and contralateral limbs in primary motor cortex
eLife, 2019 Several lines of research demonstrate that primary motor cortex (M1) is principally involved in controlling the contralateral side of the body. However, M1 activity has been correlated with both contralateral and ipsilateral limb movements.
Ethan A Heming +4 more
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An exact penalty approach for optimization with nonnegative orthogonality constraints [PDF]
Mathematical programming, 2019 Optimization with nonnegative orthogonality constraints has wide applications in machine learning and data sciences. It is NP-hard due to some combinatorial properties of the constraints.
B. Jiang +3 more
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A New Approximate Birkhoff Orthogonality Type
European Journal of Mathematical Analysis, 2022 In this note, we introduce a new approximate Birkhoff orthogonality type and give a characterization for inner product spaces using the approximate orthogonality.
Chuanjiang Zhou, Qi Liu, Yongjin Li
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Parallelizable Algorithms for Optimization Problems with Orthogonality Constraints [PDF]
SIAM Journal on Scientific Computing, 2018 To construct a parallel approach for solving optimization problems with orthogonality constraints is usually regarded as an extremely difficult mission, due to the low scalability of the orthonormalization procedure.
Bin Gao, Xin Liu, Ya-xiang Yuan
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Quench Dynamics and Orthogonality Catastrophe of Bose Polarons. [PDF]
Physical Review Letters, 2018 We monitor the correlated quench induced dynamical dressing of a spinor impurity repulsively interacting with a Bose-Einstein condensate. Inspecting the temporal evolution of the structure factor, three distinct dynamical regions arise upon increasing ...
S. Mistakidis +4 more
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Species Orthogonalization [PDF]
Journal of Theoretical Biology, 2001 We discuss general formation of complementary behaviors, functions and forms in biological species competing for resources. We call orthogonalization the related processes on macro and micro-level of a self-organized formation of correlations in the species properties.
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Accelerated Optimization with Orthogonality Constraints [PDF]
Journal of Computational Mathematics, 2019 We develop a generalization of Nesterov's accelerated gradient descent method which is designed to deal with orthogonality constraints. To demonstrate the effectiveness of our method, we perform numerical experiments which demonstrate that the number of ...
Jonathan W. Siegel
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Negative $q$-Stirling numbers [PDF]
Discrete Mathematics & Theoretical Computer Science, 2015 The notion of the negative $q$-binomial was recently introduced by Fu, Reiner, Stanton and Thiem. Mirroring the negative $q$-binomial, we show the classical $q$ -Stirling numbers of the second kind can be expressed as a pair of statistics on a subset of ...
Yue Cai, Margaret Readdy
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