Results 1 to 10 of about 19,606 (100)

AN ORDER-P TENSOR MULTIPLICATION WITH CIRCULANT STRUCTURE

open access: yesBarekeng, 2023
Research on mathematical operations involving multidimensional arrays or tensors has increased along with the growing applications involving multidimensional data analysis. The -product of order-  tensor is one of tensor multiplications.
Itsar Mangngiri   +2 more
doaj   +1 more source

Understanding and Applications of Tensors in Ecosystem Services: A Case Study of the Manas River Basin

open access: yesLand, 2023
Ecosystem services (ESs) are a multiple whole composed of multiple services and their multiple relations, which can be expressed as tensors (multiple functions of multiple vectors).
Peng Zhang   +9 more
doaj   +1 more source

Tensor‐based mobile channel tracking for IRS‐aided transmission systems

open access: yesElectronics Letters, 2023
In communication and sensing integrations, an intelligent reflective surface (IRS) will provide an auxiliary wireless link to enhance coverage and information transmission quality.
Ying Su, Jing Zhang
doaj   +1 more source

SO(3)-Irreducible Geometry in Complex Dimension Five and Ternary Generalization of Pauli Exclusion Principle

open access: yesUniverse, 2023
Motivated by a ternary generalization of the Pauli exclusion principle proposed by R. Kerner, we propose a notion of a Z3-skew-symmetric covariant SO(3)-tensor of the third order, consider it as a 3-dimensional matrix, and study the geometry of the 10 ...
Viktor Abramov, Olga Liivapuu
doaj   +1 more source

Orthogonal tucker decomposition using factor priors for 2D+3D facial expression recognition

open access: yesIET Biometrics, 2021
In this article, an effective approach is proposed to recognise the 2D+3D facial expression automatically based on orthogonal Tucker decomposition using factor priors (OTDFPFER).
Yunfang Fu   +4 more
doaj   +1 more source

A Path-Based Partial Information Decomposition

open access: yesEntropy, 2020
Based on the conceptual basis of information theory, we propose a novel mutual information measure—‘path-based mutual information’. This information measure results from the representation of a set of random variables as a probabilistic graphical model ...
David Sigtermans
doaj   +1 more source

Dictionary-Based Low-Rank Approximations and the Mixed Sparse Coding Problem

open access: yesFrontiers in Applied Mathematics and Statistics, 2022
Constrained tensor and matrix factorization models allow to extract interpretable patterns from multiway data. Therefore crafting efficient algorithms for constrained low-rank approximations is nowadays an important research topic.
Jeremy E. Cohen
doaj   +1 more source

Quadratic Multilinear Discriminant Analysis for Tensorial Data Classification

open access: yesAlgorithms, 2023
Over the past decades, there has been an increase of attention to adapting machine learning methods to fully exploit the higher order structure of tensorial data.
Cristian Minoccheri   +4 more
doaj   +1 more source

A Tensor Framework for Multi-Linear Complex MMSE Estimation

open access: yesIEEE Open Journal of Signal Processing, 2021
Tensors are higher order generalization of vectors and matrices which can be used to describe signals indexed by more than two indices. This paper introduces a tensor framework for minimum mean square error (MMSE) estimation for multi-domain signals and ...
Divyanshu Pandey, Harry Leib
doaj   +1 more source

TTN‐FCN: A Tangut character classification framework by tree tensor network and fully connected neural network

open access: yesIET Image Processing, 2023
The classification of Tangut characters plays a significant role in Western Xia research, and yet it is still a great challenge to recognize Tangut characters accurately due to the less inter‐class similarity and smaller intra‐class variation of Tangut ...
Ziping Ma, Jinlin Ma
doaj   +1 more source

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