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Statistical properties of the Hadamard product of random vectors
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Neudecker, H, Liu, Shuangzhe
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On the span of Hadamard products of vectors
The Hadamard product \([a_{ij}]\circ\) \([b_{ij}]\)of two \(m\times n\) matrices is the entrywise product \([a_{ij}b_{ij}].\) Let \(A_{1},\dots,A_{k}\) be positive semidefinite \(n\times n\) matrices and let \(R\) be the range of \(A_{1} \circ\dots\circ A_{k}\). The authors prove that \(R\) is spanned by the set \(\{A_{1}x_{1}\circ\dots\circ A_{k}x_{k}~
Qiu, Li, Zhan, Xingzhi
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Compressive sensing is a very attractive technique to detect weak signals in a noisy background, and to overcome limitations from traditional Nyquist sampling.
Tongjing Sun +4 more
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We consider the challenging problem of joint angle estimation and signal reconstruction for coherently distributed (CD) sources in massive multiple-input-multiple-output (MIMO) systems employing uniform rectangular arrays. A simplified method inspired by
Yuan Zhou +5 more
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Hadamard Product Arguments and Their Applications [PDF]
The Hadamard product (also known as element-wise multiplication) is a fundamental operation in linear algebra, performed by multiplying corresponding elements of two matrices with the same dimensions. This operation plays a crucial role in various fields,
Kyeongtae Lee +4 more
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Hadamard products and moments of random vectors [PDF]
We derive new comparison inequalities between weak and strong moments of norms of random vectors with optimal (up to an universal factor) constants. We discuss applications to the concentration of log-concave random vectors and bounds on $p$-summing norms of finite rank operators.
Nayar, Piotr, Latała, Rafał
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MATRIX-VECTOR ALGORITHMS OF LOCAL POSTERIORI INFERENCE IN ALGEBRAIC BAYESIAN NETWORKS ON QUANTA PROPOSITIONS [PDF]
Posteriori inference is one of the three kinds of probabilistic-logic inferences in the probabilistic graphical models theory and the base for processing of knowledge patterns with probabilistic uncertainty using Bayesian networks. The paper deals with a
A. A. Zolotin +2 more
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Multipliers and Hadamard products in the vector-valued setting [PDF]
A couple of new and in a sense dual structures -- a product space and a space of multipliers -- is introduced. Given a bounded bilinear map \(B:E_1 \times E_2 \to E_3\), the space of \(B\)-multipliers \((X_{E_2},X_{E_3})_B\) between \(X_{E_2}\) and \(X_{E_3}\) is defined and studied.
Blasco, Óscar, Zaragoza-Berzosa, Carme
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Hadamard Products of Projective Varieties with Errors and Erasures
In Algebraic Statistics, M.A. Cueto, J. Morton and B. Sturmfels introduced a statistical model, the Restricted Boltzmann Machine, which introduced the Hadamard product of two or more vectors of an affine or projective space, i.e., the componentwise ...
Edoardo Ballico
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A note on the span of Hadamard products of vectors
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