Results 21 to 30 of about 2,509 (175)

Robust Tensor Completion Using Transformed Tensor SVD

open access: yesCoRR, 2019
In this paper, we study robust tensor completion by using transformed tensor singular value decomposition (SVD), which employs unitary transform matrices instead of discrete Fourier transform matrix that is used in the traditional tensor SVD. The main motivation is that a lower tubal rank tensor can be obtained by using other unitary transform matrices
Guang-Jing Song   +2 more
openaire   +2 more sources

An Out of Memory tSVD for Big-Data Factorization

open access: yesIEEE Access, 2020
Singular value decomposition (SVD) is a matrix factorization method widely used for dimension reduction, data analytics, information retrieval, and unsupervised learning.
Hector Carrillo-Cabada   +4 more
doaj   +1 more source

Reproducibility of regional structural and functional MRI networks in cerebral small vessel disease compared to age matched and stroke-free controls

open access: yesCerebral Circulation - Cognition and Behavior, 2023
Abnormalities in structural and functional MRI connectivity measures have been reported in cerebral small vessel disease (SVD). Previous research has shown that whole-brain structural connectivity was highly reproducible in SVD patients, while whole ...
Daniel J. Tozer   +2 more
doaj   +1 more source

Orthogonal random projection for tensor completion

open access: yesIET Computer Vision, 2020
The low‐rank tensor completion problem, which aims to recover the missing data from partially observable data. However, most of the existing tensor completion algorithms based on Tucker decomposition cannot avoid using singular value decomposition (SVD ...
Yali Feng, Guoxu Zhou
doaj   +1 more source

Cognition mediates the relation between structural network efficiency and gait in small vessel disease

open access: yesNeuroImage: Clinical, 2021
Cerebral small vessel disease (SVD), including white matter hyperintensities (WMH), microbleeds, lacunes, was related to gait disturbances, while the underlying mechanism is unclear.
Mengfei Cai   +5 more
doaj   +1 more source

Triad second renormalization group

open access: yesJournal of High Energy Physics, 2022
We propose a second renormalization group (SRG) in the triad representation of tensor networks. The SRG method improves two parts of the triad tensor renormalization group, which are the decomposition of intermediate tensors and the preparation of ...
Daisuke Kadoh   +2 more
doaj   +1 more source

Tensor SVD and distributed control [PDF]

open access: yesSPIE Proceedings, 2005
The (approximate) diagonalization of symmetric matrices has been studied in the past in the context of distributed control of an array of collocated smart actuators and sensors. For distributed control using a two dimensional array of actuators and sensors, it is more natural to describe the system transfer function as a complex tensor rather than a ...
openaire   +1 more source

An Aggregative High-Order Singular Value Decomposition Method in Edge Computing

open access: yesIEEE Access, 2020
In edge computing, for dimensionality reduction and core data extraction, both edge computing node (ECN) and cloud server may implement a high-order singular value decomposition (HOSVD) algorithm before data are passed to local computing models. However,
Junhua Chen   +3 more
doaj   +1 more source

T-SVD-Based Robust Color Image Watermarking

open access: yesIEEE Access, 2019
In order to protect the copyright of the color image, a robust color image watermarking method based on Tensor-Singular Value Decomposition (T-SVD) is proposed.
Meng Du   +4 more
doaj   +1 more source

A Tensor SVD-based Classification Algorithm Applied to fMRI Data

open access: yesSIAM Undergraduate Research Online, 2022
To analyze the abundance of multidimensional data, tensor-based frameworks have been developed. Traditionally, the matrix singular value decomposition (SVD) is used to extract the most dominant features from a matrix containing the vectorized data. While the SVD is highly useful for data that can be appropriately represented as a matrix, this step of ...
Katherine Keegan   +2 more
openaire   +2 more sources

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