Results 31 to 40 of about 240,751 (277)

Bounds on Dimension Reduction in the Nuclear Norm [PDF]

open access: yes, 2019
$ \newcommand{\schs}{\scriptstyle{\mathsf{S}}_1} $For all $n \ge 1$, we give an explicit construction of $m \times m$ matrices $A_1,\ldots,A_n$ with $m = 2^{\lfloor n/2 \rfloor}$ such that for any $d$ and $d \times d$ matrices $A'_1,\ldots,A'_n$ that ...
B Brinkman   +10 more
core   +2 more sources

Dynamic Cardiac MRI Reconstruction Using Combined Tensor Nuclear Norm and Casorati Matrix Nuclear Norm Regularizations

open access: yes2022 IEEE 19th International Symposium on Biomedical Imaging (ISBI), 2022
4 pages, 3 figures, 1 table, accepted in IEEE ISBI ...
Zhang, Yinghao, Hu, Yue
openaire   +2 more sources

Spectrally Sparse Tensor Reconstruction in Optical Coherence Tomography Using Nuclear Norm Penalisation

open access: yesMathematics, 2020
Reconstruction of 3D objects in various tomographic measurements is an important problem which can be naturally addressed within the mathematical framework of 3D tensors.
Mohamed Ibrahim Assoweh   +2 more
doaj   +1 more source

The Ideal of σ-Nuclear Operators and Its Associated Tensor Norm

open access: yesMathematics, 2020
We introduce a new tensor norm ( σ -tensor norm) and show that it is associated with the ideal of σ -nuclear operators. In this paper, we investigate the ideal of σ -nuclear operators and the σ -tensor norm.
Ju Myung Kim, Keun Young Lee
doaj   +1 more source

Traffic Data Restoration Method Based on Tensor Weighting and Truncated Nuclear Norm [PDF]

open access: yesJisuanji kexue, 2023
The problem of missing data seriously affects a series of activities in intelligent transportation systems,such as monitoring traffic dynamics,predicting traffic flow,and deploying traffic planning through data.Therefore,a traffic flow data ...
WU Jiangnan, ZHANG Hongmei, ZHAO Yongmei, ZENG Hang, HU Gang
doaj   +1 more source

Rank aggregation via nuclear norm minimization

open access: yesProceedings of the 17th ACM SIGKDD international conference on Knowledge discovery and data mining, 2011
The process of rank aggregation is intimately intertwined with the structure of skew-symmetric matrices. We apply recent advances in the theory and algorithms of matrix completion to skew-symmetric matrices. This combination of ideas produces a new method for ranking a set of items.
Gleich, David F., Lim, Lek-Heng
openaire   +2 more sources

Spectral norm and nuclear norm of a third order tensor

open access: yesJournal of Industrial & Management Optimization, 2022
<p style="text-indent:20px;">The spectral norm and the nuclear norm of a third order tensor play an important role in the tensor completion and recovery problem. We show that the spectral norm of a third order tensor is equal to the square root of the spectral norm of three positive semi-definite biquadratic tensors, and the square roots of the ...
Qi, L, Hu, S, Xu, Y
openaire   +3 more sources

Truncated Nuclear Norm Minimization for Image Restoration Based On Iterative Support Detection [PDF]

open access: yes, 2014
Recovering a large matrix from limited measurements is a challenging task arising in many real applications, such as image inpainting, compressive sensing and medical imaging, and this kind of problems are mostly formulated as low-rank matrix ...
Su, Xinhua, Wang, Yilun
core   +3 more sources

Weighted Tensor Nuclear Norm Minimization for Color Image Restoration

open access: yesIEEE Access, 2019
Non-local self-similarity (NLSS) is widely used as prior information in an image restoration method. In particular, a low-rankness-based prior has a significant effect on performance.
Kaito Hosono   +2 more
doaj   +1 more source

In-network Sparsity-regularized Rank Minimization: Algorithms and Applications [PDF]

open access: yes, 2012
Given a limited number of entries from the superposition of a low-rank matrix plus the product of a known fat compression matrix times a sparse matrix, recovery of the low-rank and sparse components is a fundamental task subsuming compressed sensing ...
Giannakis, Georgios B.   +2 more
core   +1 more source

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