Results 21 to 30 of about 2,467 (246)

Multi-View Robust Tensor-Based Subspace Clustering

open access: yesIEEE Access, 2022
In this era of technology advancement, huge amount of data is collected from different disciplines. This data needs to be stored, processed and analyzed to understand its nature.
Esraa M. Al-Sharoa   +1 more
doaj   +1 more source

A sharp upper bound on the spectral radius of a nonnegative k-uniform tensor and its applications to (directed) hypergraphs

open access: yesJournal of Inequalities and Applications, 2020
In this paper, we obtain a sharp upper bound on the spectral radius of a nonnegative k-uniform tensor and characterize when this bound is achieved. Furthermore, this result deduces the main result in [X. Duan and B.
Chuang Lv, Lihua You, Xiao-Dong Zhang
doaj   +1 more source

Eigenvalues of the adjacency tensor on products of hypergraphs

open access: yesInternational Journal of Contemporary Mathematical Sciences, 2013
We consider the generalized notions of Cartesian and tensor products on m-uniform hypergraphs. The adjacency tensor is analogous to the adjacency matrix and two different notions of eigenvalues of the adjacency tensor on the products of hypergraphs are studied.
K. J. Pearson, Tan Zhang
openaire   +1 more source

Adjacency and Tensor Representation in General Hypergraphs Part 1: e-adjacency Tensor Uniformisation Using Homogeneous Polynomials

open access: yesCoRR, 2017
Adjacency between two vertices in graphs or hypergraphs is a pairwise relationship. It is redefined in this article as 2-adjacency. In general hypergraphs, hyperedges hold for $n$-adic relationship. To keep the $n$-adic relationship the concepts of $k$-adjacency and e-adjacency are defined. In graphs 2-adjacency and e-adjacency concepts match, just as $
Xavier Ouvrard   +2 more
openaire   +2 more sources

A Heuristic for Direct Product Graph Decomposition

open access: yesJournal of Graph Algorithms and Applications, 2023
In this paper we describe a heuristic for decomposing a directed graph into factors according to the direct product (also known as Kronecker, cardinal or tensor product). Given a directed, unweighted graph $G$ with adjacency matrix $\mathbf{Adj}(G)$, our
Luca Calderoni   +2 more
doaj   +1 more source

Diffusion tensor imaging demonstrates deviation of fibres in normal appearing white matter adjacent to a brain tumour [PDF]

open access: yesJournal of Neurology, Neurosurgery & Psychiatry, 2000
The objective was to study fibre orientation in the cerebral white matter of a patient with a brain tumour using diffusion tensor imaging (DTI). A patient with a mild left hemiparesis and a tumour in the right frontal lobe and 20 healthy volunteers were scanned with a DTI sequence.
WIESHMANN, UC   +6 more
openaire   +3 more sources

Clinical Uses of Diffusion Tensor Imaging Fiber Tracking Merged Neuronavigation with Lesions Adjacent to Corticospinal Tract : A Retrospective Cohort Study [PDF]

open access: yesJournal of Korean Neurosurgical Society, 2020
To investigate the efficiency of diffusion tensor imaging (DTI) fiber-tracking based neuronavigation and assess its usefulness in the preoperative surgical planning, prognostic prediction, intraoperative course and outcome improvement.Seventeen patients with cerebral masses adjacent to corticospinal tract (CST) were given standard magnetic resonance ...
Qi Yu, Kun Lin, Yunhui Liu, Xinxing Li
openaire   +2 more sources

Time-Evolving Graph Convolutional Recurrent Network for Traffic Prediction

open access: yesApplied Sciences, 2022
Accurate traffic prediction is crucial to the construction of intelligent transportation systems. This task remains challenging because of the complicated and dynamic spatiotemporal dependency in traffic networks. While various graph-based spatiotemporal
Weimin Mai, Junxin Chen, Xiang Chen
doaj   +1 more source

On the Z-eigenvalues of the adjacency tensors for uniform hypergraphs

open access: yesLinear Algebra and its Applications, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xie, Jinshan, Chang, An
openaire   +2 more sources

Volumetric Assessment of Tumor Infiltration of Adjacent White Matter Based on Anatomic MRI and Diffusion Tensor Tractography [PDF]

open access: yesAcademic Radiology, 2007
To perform a retrospective, quantitative assessment of the anatomic relationship between intra-axial, supratentorial, primary brain tumors, and adjacent white matter fiber tracts based on anatomic and diffusion tensor magnetic resonance imaging (MRI).
Ion-Florin, Talos   +3 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy