Results 21 to 30 of about 834,250 (307)

Orthogonal tucker decomposition using factor priors for 2D+3D facial expression recognition

open access: yesIET Biometrics, 2021
In this article, an effective approach is proposed to recognise the 2D+3D facial expression automatically based on orthogonal Tucker decomposition using factor priors (OTDFPFER).
Yunfang Fu   +4 more
doaj   +1 more source

Contraction and decomposition matrices for vacuum diagrams [PDF]

open access: yes, 2001
Tensor reduction of vacuum diagrams uses contraction and decomposition matrices. We present general recurrence relations for the calculation of those matrices and an explicit formula for the 3-loop decomposition matrix and its determinant.Comment: 10 ...
Knecht, K., Veschelde, H.
core   +2 more sources

RMPD: Method for Enhancing the Robustness of Recommendations With Attack Environments

open access: yesIEEE Access, 2021
Personalized item recommendation has become a hot topic research among academic and industry community. But lots of purposeful fraudsters maybe perform different attacks on the recommender system to insert fake ratings, which could reduce the ...
Qi Ding   +4 more
doaj   +1 more source

Non-unitary CMV-decomposition

open access: yesSpecial Matrices, 2020
An important decomposition for unitary matrices, the CMV-decomposition, is extended to general non-unitary matrices. This relates to short recurrence relations constructing biorthogonal bases for a particular pair of extended Krylov subspaces.
Van Buggenhout Niel   +2 more
doaj   +1 more source

Noncommutative Spectral Decomposition with Quasideterminant [PDF]

open access: yes, 2007
We develop a noncommutative analogue of the spectral decomposition with the quasideterminant defined by I. Gelfand and V. Retakh. In this theory, by introducing a noncommutative Lagrange interpolating polynomial and combining a noncommutative Cayley ...
Suzuki, Tatsuo
core   +2 more sources

Computation with No Memory, and Rearrangeable Multicast Networks [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2014
We investigate the computation of mappings from a set S^n to itself with "in situ programs", that is using no extra variables than the input, and performing modifications of one component at a time, hence using no extra memory.
Emeric Gioan   +2 more
doaj   +1 more source

Reliable data transmission in wireless sensor networks with data decomposition and ensemble recovery

open access: yesMathematical Biosciences and Engineering, 2019
Wireless sensor networks (WSNs) are usually used to helps many basic scientific works to gather and observe environmental data, whose completeness and accuracy are the key to ensuring the success of scientific works.
Fengyong Li, Gang Zhou, Jingsheng Lei
doaj   +1 more source

A Gradient Descent Algorithm on the Grassman Manifold for Matrix Completion [PDF]

open access: yes, 2009
We consider the problem of reconstructing a low-rank matrix from a small subset of its entries. In this paper, we describe the implementation of an efficient algorithm called OptSpace, based on singular value decomposition followed by local manifold ...
Keshavan, Raghunandan H., Oh, Sewoong
core   +1 more source

Fast Superpixel Based Subspace Low Rank Learning Method for Hyperspectral Denoising

open access: yesIEEE Access, 2018
Sequential data, such as video frames and event data, have been widely applied in the realworld. As a special kind of sequential data, hyperspectral images (HSIs) can be regarded as a sequence of 2-D images in the spectral dimension, which can be ...
Le Sun   +5 more
doaj   +1 more source

Weighted Sparseness-Based Anomaly Detection for Hyperspectral Imagery

open access: yesSensors, 2023
Anomaly detection of hyperspectral remote sensing data has recently become more attractive in hyperspectral image processing. The low-rank and sparse matrix decomposition-based anomaly detection algorithm (LRaSMD) exhibits poor detection performance in ...
Xing Lian   +6 more
doaj   +1 more source

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