Results 1 to 10 of about 2,373 (165)

Optimal High-order Tensor SVD via Tensor-Train Orthogonal Iteration. [PDF]

open access: yesIEEE Trans Inf Theory, 2022
This paper studies a general framework for high-order tensor SVD. We propose a new computationally efficient algorithm, tensor-train orthogonal iteration (TTOI), that aims to estimate the low tensor-train rank structure from the noisy high-order tensor observation.
Zhou Y, Zhang AR, Zheng L, Wang Y.
europepmc   +5 more sources

Perivascular spaces, diffusion MRI markers and cognitive decline in cerebral small vessel disease [PDF]

open access: yesCerebral Circulation - Cognition and Behavior
Background: MRI markers, including visible perivascular spaces (PVS), diffusion tensor image analysis along the perivascular space (DTI-ALPS) index, and peak width of skeletonized mean diffusivity (PSMD) may capture the earliest pathogenesis of cerebral ...
Gemma Solé-Guardia   +11 more
doaj   +2 more sources

Unified transformed t-SVD using unfolding tensors for visual inpainting

open access: yesComputational Visual Media
Low-rank tensor completion (LRTC) restores missing elements in multidimensional visual data; the challenge is representing the inherent structures within this data.
Mengjie Qin   +5 more
doaj   +2 more sources

Tensor Eigenvalue and SVD from the Viewpoint of Linear Transformation

open access: yesAxioms, 2023
A linear transformation from vector space to another vector space can be represented as a matrix. This close relationship between the matrix and the linear transformation is helpful for the study of matrices.
Xinzhu Zhao, Bo Dong, Bo Yu, Yan Yu
doaj   +2 more sources

On spectral data and tensor decompositions in Finslerian framework [PDF]

open access: yesAUT Journal of Mathematics and Computing, 2021
The extensions of the Riemannian structure include the Finslerian one, which provided in recent years successful models in various fields like Biology, Physics, GTR, Monolayer Nanotechnology and Geometry of Big Data.
Vladimir Balan
doaj   +1 more source

A Hybrid Norm for Guaranteed Tensor Recovery

open access: yesFrontiers in Physics, 2022
Benefiting from the superiority of tensor Singular Value Decomposition (t-SVD) in excavating low-rankness in the spectral domain over other tensor decompositions (like Tucker decomposition), t-SVD-based tensor learning has shown promising performance and
Yihao Luo   +5 more
doaj   +1 more source

A Multidimensional Principal Component Analysis via the C-Product Golub–Kahan–SVD for Classification and Face Recognition

open access: yesMathematics, 2021
Face recognition and identification are very important applications in machine learning. Due to the increasing amount of available data, traditional approaches based on matricization and matrix PCA methods can be difficult to implement.
Mustapha Hached   +3 more
doaj   +1 more source

Exact Tensor Completion Using t-SVD [PDF]

open access: yesIEEE Transactions on Signal Processing, 2017
16 pages, 5 figures, 2 ...
Zhang, Zemin, Aeron, Shuchin
openaire   +2 more sources

ST-SVD factorization and s-diagonal tensors

open access: yesCommunications in Mathematical Sciences, 2022
A third order real tensor is mapped to a special f-diagonal tensor by going through Discrete Fourier Transform (DFT), standard matrix SVD and inverse DFT. We call such an f-diagonal tensor an s-diagonal tensor. An f-diagonal tensor is an s-diagonal tensor if and only if it is mapped to itself in the above process.
Ling, Chen   +3 more
openaire   +2 more sources

Recovering low‐rank tensor from limited coefficients in any ortho‐normal basis using tensor‐singular value decomposition

open access: yesIET Signal Processing, 2021
Tensor singular value decomposition (t‐SVD) provides a novel way to decompose a tensor. It has been employed mostly in recovering missing tensor entries from the observed tensor entries.
Shuli Ma   +4 more
doaj   +1 more source

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