Results 51 to 60 of about 412,590 (166)
Block-Wise Two-Dimensional Maximum Margin Criterion for Face Recognition
The Scientific World Journal, 2014 Maximum margin criterion (MMC) is a well-known method for feature extraction and dimensionality reduction. However, MMC is based on vector data and fails to exploit local characteristics of image data.
Xiao-Zhang Liu, Guan Yang
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Adaptive beamforming: Spatial filter designed blocking matrix
IEEE Journal of Oceanic Engineering, 1994 Controlling the resolution in adaptive beamformers is often crucial. A simple method that works for both narrow-band and broad-band arrays is presented. This method is based on the normalized leaky LMS algorithm in conjunction with a generalized sidelobe canceller (GSC) structure, where the GSC is designed using a spatial filtering approach. In essence,
Nordebo, Sven +2 more
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Matrix Inequalities by Means of Block Matrices [PDF]
Mathematical Inequalities & Applications, 2001 Sumamry: We first show a weak log-majorization inequality of singular values for partitioned positive semidefinite matrices which will imply some existing results of a number of authors. Then we present some basic matrix inequalities and apply them to obtain a number of matrix inequalities involving sums, ordinary products and Hadamard products.
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Binary Tree Block Encoding of Classical Matrix
IEEE Transactions on Quantum EngineeringState preparation and block encoding are essential subroutines in quantum computing. The former provides basic encoding of quantum states, while the latter transforms classical data into a matrix representation within a quantum circuit.
Zexian Li +3 more
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Petroleum Exploration and Development, 2020 By comparing numerical simulation results of single-porosity and dual-porosity models, the significant effect of reinfiltration to naturally fractured reservoirs was confirmed.
Amirhossein AGHABARARI +2 more
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Analytic representative element rate decline models for naturally fractured reservoir depletion
Scientific ReportsRepresentative single anisotropic matrix block 2D Green’s function models for depletion through fully-penetrating, vertical fractures through different numbers of fracture faces are constructed that analytically capture both fracture and block depletion ...
R. D. Hazlett, T. Syrymov, R. Younis
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Efficient Block Approximate Matrix Multiplication
, 2023 Randomized matrix algorithms have had significant recent impact on numerical linear algebra. One especially powerful class of methods are algorithms for approximate matrix multiplication based on sampling. Such methods typically sample individual matrix rows and columns using carefully chosen importance sampling probabilities. However, due to practical
Yang, Chuhan, Musco, Christopher
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Journal of Harbin University of Science and Technology, 2019 In order to solve the problem of whether the matrices generated by two unipotent matrices are unipotency, a new combinatorial property of generators of free groups is obtained by using the matrix logarithmic tool。From the point of the combination of ...
YANG Xin-song, MA Chang
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LSB-based pre-embedding video steganography with rotating & shifting poly-pattern block matrix. [PDF]
PeerJ Comput Sci, 2022 Hacimurtazaoglu M, Tutuncu K.
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Zhejiang Daxue xuebao. Lixue ban, 2018 Based on the existing algorithms,we further study relaxed modulus-based synchronous block multisplitting multi-parameters methods for linear complementarity problem. Furthermore, we give the weaker convergence results of our new method in this paper when
ZHANGLitao(张理涛) +2 more
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