Results 31 to 40 of about 690,102 (265)

On Optimizing Distributed Tucker Decomposition for Sparse Tensors [PDF]

open access: yesProceedings of the 2018 International Conference on Supercomputing, 2018
The Tucker decomposition generalizes the notion of Singular Value Decomposition (SVD) to tensors, the higher dimensional analogues of matrices. We study the problem of constructing the Tucker decomposition of sparse tensors on distributed memory systems via the HOOI procedure, a popular iterative method.
Venkatesan T. Chakaravarthy   +6 more
openaire   +2 more sources

Joint range, angle and polarization estimation in polarimetric FDA-MIMO radar based on Tucker tensor decomposition

open access: yesEURASIP Journal on Advances in Signal Processing, 2023
Frequency diverse array multiple-input multiple-output (FDA-MIMO) radar is an emerging technology to offer range-angle-dependent beampattern. Polarimetric FDA-MIMO radar can sense additional polarization information to improve target identification ...
Qi Zhang, Hong Jiang, Yunchang Liu
doaj   +1 more source

Some Theory on Non-negative Tucker Decomposition [PDF]

open access: yes, 2017
Some theoretical difficulties that arise from dimensionality reduction for tensors with non-negative coefficients is discussed in this paper. A necessary and sufficient condition is derived for a low non-negative rank tensor to admit a non-negative Tucker decomposition with a core of the same non-negative rank.
Cohen, Jeremy   +2 more
openaire   +2 more sources

Nonnegative Tensor Completion via Low-Rank Tucker Decomposition: Model and Algorithm

open access: yesIEEE Access, 2019
We consider the problem of low-rank tensor decomposition of incomplete tensors that has applications in many data analysis problems, such as recommender systems, signal processing, machine learning, and image inpainting.
Bilian Chen   +4 more
doaj   +1 more source

Three-Order Tucker Decomposition and Reconstruction Detector for Unsupervised Hyperspectral Change Detection

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Change detection from multitemporal hyperspectral images has attracted great attention. Most traditional methods using spectral information for change detection treat a hyperspectral image as a two-dimensional matrix and do not take into account ...
Zengfu Hou, Wei Li, Ran Tao, Qian Du
doaj   +1 more source

Historical Multi-Station SCADA Data Compression of Distribution Management System Based on Tensor Tucker Decomposition

open access: yesIEEE Access, 2019
In order to deal with the problem of massive historical multi-station SCADA data storage in distribution management system, this paper proposes a data compression method for power distribution system based on tensor Tucker decomposition.
Hongshan Zhao   +3 more
doaj   +1 more source

Remote Sensing Imagery Object Detection Model Compression via Tucker Decomposition

open access: yesMathematics, 2023
Although convolutional neural networks (CNNs) have made significant progress, their deployment onboard is still challenging because of their complexity and high processing cost.
Lang Huyan   +10 more
doaj   +1 more source

Randomized Algorithms for Computation of Tucker Decomposition and Higher Order SVD (HOSVD)

open access: yesIEEE Access, 2021
Big data analysis has become a crucial part of new emerging technologies such as the internet of things, cyber-physical analysis, deep learning, anomaly detection, etc.
Salman Ahmadi-Asl   +6 more
doaj   +1 more source

Incremental Hierarchical Tucker Decomposition

open access: yesCoRR
We present two new algorithms for approximating and updating the hierarchical Tucker decomposition of tensor streams. The first algorithm, Batch Hierarchical Tucker - leaf to root (BHT-l2r), proposes an alternative and more efficient way of approximating a batch of similar tensors in hierarchical Tucker format. The second algorithm, Hierarchical Tucker
Doruk Aksoy, Alex A. Gorodetsky
openaire   +2 more sources

Unsupervised Machine Learning Identifies Shared Biomechanical and Clinical Variation in Individuals with Knee Osteoarthritis and High BMI: A Secondary Analysis of the IDEA Trial

open access: yesArthritis Care &Research, Accepted Article.
Objective High body mass index (BMI≥27 kg/m2) and aberrant gait biomechanics are primary risk factors for knee osteoarthritis (KOA), yet the specific loading patterns linked to clinical disease features remain unclear. Unsupervised machine learning (ML) was used to identify vertical ground reaction force (vGRF) waveform modes of variation and ...
Ashley N. Buck   +10 more
wiley   +1 more source

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