Results 41 to 50 of about 2,610,164 (335)

Hardware Acceleration of Large-Scale CMOS Invertible Logic Based on Sparse Hamiltonian Matrices

open access: yesIEEE Open Journal of Circuits and Systems, 2021
Invertible logic has been recently presented that can realize bidirectional computing based on Hamiltonians for solving several critical issues, such as integer factorization and training neural networks.
Naoya Onizawa   +2 more
doaj   +1 more source

Encryption and Decryption of a Message Involving Byte Rotation Technique and Invertible Matrix

open access: yesInternational Journal of Engineering and Advanced Technology, 2019
The aim of this paper is to introduce a new encryption algorithm involving byte rotation and invertible matrix. In the proposed algorithm firstly we apply byte rotation to get an intermediate cipher and then applying the invertible matrix (modulo 27 ...

semanticscholar   +1 more source

A Task-Driven Invertible Projection Matrix Learning Algorithm for Hyperspectral Compressed Sensing

open access: yesRemote Sensing, 2021
The high complexity of the reconstruction algorithm is the main bottleneck of the hyperspectral image (HSI) compression technology based on compressed sensing.
Shaofei Dai   +3 more
doaj   +1 more source

Estimating Forward-Looking Stock Correlations from Risk Factors

open access: yesMathematics, 2022
This study provides fully mathematically and economically feasible solutions to estimating implied correlation matrices in equity markets. Factor analysis is combined with option data to receive ex ante beliefs for cross-sectional correlations. Necessary
Wolfgang Schadner, Joshua Traut
doaj   +1 more source

The Hadamard Product of a Nonsingular General H-Matrix and Its Inverse Transpose Is Diagonally Dominant

open access: yesJournal of Applied Mathematics, 2015
We study the combined matrix of a nonsingular H-matrix. These matrices can belong to two different H-matrices classes: the most common, invertible class, and one particular class named mixed class.
Rafael Bru   +3 more
doaj   +1 more source

Boundary value matrix problems and Drazin invertible operators

open access: yesМатематичні Студії, 2022
Let $A$ and $B$ be given linear operators on Banach spaces $X$ and $Y$, we denote by $M_C$ the operator defined on $X \oplus Y$ by $M_{C}= \begin{pmatrix} A & C \\ 0 & B% \end{pmatrix}.$ In this paper, we study an abstract boundary value matrix problems
K. Miloud Hocine
doaj   +1 more source

Invertibility of random matrices: unitary and orthogonal perturbations [PDF]

open access: yes, 2013
We show that a perturbation of any fixed square matrix D by a random unitary matrix is well invertible with high probability. A similar result holds for perturbations by random orthogonal matrices; the only notable exception is when D is close to ...
Rudelson, Mark, Vershynin, Roman
core   +1 more source

Natural Density of Rectangular Unimodular Integer Matrices [PDF]

open access: yes, 2010
In this paper, we compute the natural density of the set of k x n integer matrices that can be extended to an invertible n x n matrix over the integers.
Maze, G., Rosenthal, J., Wagner, U.
core   +2 more sources

Invertible Network for Classification and Biomarker Selection for ASD [PDF]

open access: yesInternational Conference on Medical Image Computing and Computer-Assisted Intervention, 2019
Determining biomarkers for autism spectrum disorder (ASD) is crucial to understanding its mechanisms. Recently deep learning methods have achieved success in the classification task of ASD using fMRI data.
Juntang Zhuang   +4 more
semanticscholar   +1 more source

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