Results 31 to 40 of about 249,242 (319)

The Tensor Algebra Compiler [PDF]

open access: yes, 2017
Tensor and linear algebra is pervasive in data analytics and the physical sciences. Often the tensors, matrices or even vectors are sparse. Computing expressions involving a mix of sparse and dense tensors, matrices and vectors requires writing kernels ...
Kjolstad, Fredrik   +9 more
core   +1 more source

Long-Term Recording of LTP in Cultured Hippocampal Slices

open access: yesNeural Plasticity, 2002
Long-term potentiation (LTP) was elicited by high frequency stimulation in hippocampal slices cultured on multi-electrode arrays. LTP lasting more than 1 h was recorded in 75% of slices, and a significant number of slices exhibited a non-decaying LTP ...
Ken Shimono   +4 more
doaj   +1 more source

Diffusion Tensor Imaging: on the assessment of data quality - a preliminary bootstrap analysis [PDF]

open access: yes, 2003
In the field of nuclear magnetic resonance imaging, diffusion tensor imaging (DTI) has proven an important method for the characterisation of ultrastructural tissue properties.
Heim, Stefan   +4 more
core   +1 more source

Abelian tensors

open access: yesJournal de Mathématiques Pures et Appliquées, 2017
We analyze tensors in the tensor product of three m-dimensional vector spaces satisfying Strassen's equations for border rank m. Results include: two purely geometric characterizations of the Coppersmith-Winograd tensor, a reduction to the study of symmetric tensors under a mild genericity hypothesis, and numerous additional equations and examples ...
J. M. Landsberg, Mateusz Michalek
openaire   +2 more sources

Gap Filling of 3-D Microvascular Networks by Tensor Voting [PDF]

open access: yes, 2008
We present a new algorithm which merges discontinuities in 3-D images of tubular structures presenting undesirable gaps. The application of the proposed method is mainly associated to large 3-D images of microvascular networks.
Plouraboué, Franck   +2 more
core   +1 more source

Tensor-Tensor Product Toolbox

open access: yesCoRR, 2018
The tensor-tensor product (t-product) [M. E. Kilmer and C. D. Martin, 2011] is a natural generalization of matrix multiplication. Based on t-product, many operations on matrix can be extended to tensor cases, including tensor SVD, tensor spectral norm, tensor nuclear norm [C. Lu, et al., 2018] and many others.
openaire   +2 more sources

Helical CT Reconstruction From Sparse-View Data Through Exploiting the 3D Anatomical Structure Sparsity

open access: yesIEEE Access, 2021
Sparse-view scanning has great potential for realizing ultra-low-dose computed tomography (CT) examination. However, noise and artifacts in reconstructed images are big obstacles, which must be handled to maintain the diagnosis accuracy.
Yongbo Wang   +7 more
doaj   +1 more source

$SDD_1$ tensors and $B_1$-tensors

open access: yesThe Electronic Journal of Linear Algebra
Strong $\mathcal{H}$-tensors play an important role in the fields of science and engineering. In this paper, we first propose a new subclass of strong $\mathcal{H}$-tensors that we call the class of $SDD_1$ tensors. We also prove that if a tensor is an $SDD_1$ tensor, it is a strong $\mathcal{H}$-tensor. As an application, a sufficient condition for an
Weiting Duan, Dekun Wen, Yaqiang Wang
openaire   +1 more source

Tensor product of correspondence functors [PDF]

open access: yes, 2019
As part of the study of correspondence functors, the present paper investigates their tensor product and proves some of its main properties. In particular, the correspondence functor associated to a finite lattice has the structure of a commutative ...
Thévenaz, Jacques, Bouc, Serge
core   +1 more source

Decomposable Sparse Tensor on Tensor Regression

open access: yesCoRR, 2022
Most regularized tensor regression research focuses on tensors predictors with scalars responses or vectors predictors to tensors responses. We consider the sparse low rank tensor on tensor regression where predictors $\mathcal{X}$ and responses $\mathcal{Y}$ are both high-dimensional tensors.
Haiyi Mao, Jason Xiaotian Dou
openaire   +2 more sources

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