Results 11 to 20 of about 91,180 (283)

A New Truncation Strategy for the Higher-Order Singular Value Decomposition [PDF]

open access: yesSIAM Journal on Scientific Computing, 2012
We present an alternative strategy for truncating the higher-order singular value decomposition (T-HOSVD). An error expression for an approximate Tucker decomposition with orthogonal factor matrices is presented, leading us to propose a novel truncation strategy for the HOSVD, which we refer to as the sequentially truncated higher-order singular value ...
Vannieuwenhoven, Nick   +2 more
openaire   +4 more sources

Observation and Inversion of Aerosol Particle Size Distribution over Yinchuan Area

open access: yesAtmosphere, 2021
Particle size distribution is one of the important microphysical parameters to characterize the aerosol properties. The aerosol optical depth is used as the function of wavelength to study the particle size distribution of whole atmospheric column ...
Jiandong Mao   +4 more
doaj   +1 more source

Fractional Norm Regularization Using Truncated Singular Value Decomposition

open access: yesSSRN Electronic Journal, 2022
In a previous work, a solution to the fractional norm regularization (FNR) was discovered in a closed form and an inverse perturbation was adopted as a tool to overcome the ill condition of a matrix whose inverse is required by the fixed-point FNR. In this work, a novel computation technique, namely truncated singular value decomposition-fractional ...
Bamrung Tausiesakul   +1 more
openaire   +2 more sources

An Improved Tikhonov-Regularized Variable Projection Algorithm for Separable Nonlinear Least Squares

open access: yesAxioms, 2021
In this work, we investigate the ill-conditioned problem of a separable, nonlinear least squares model by using the variable projection method. Based on the truncated singular value decomposition method and the Tikhonov regularization method, we propose ...
Hua Guo, Guolin Liu, Luyao Wang
doaj   +1 more source

Difference-based Methods for Truncating the Singular Value Decomposition [PDF]

open access: yesCommunications in Statistics - Simulation and Computation, 2015
Given a noisy time series (or signal), one may wish to remove the noise from the observed series. Assuming that the noise-free series lies in some low dimensional subspace of rank r, a common approach is to embed the noisy time series into a Hankel trajectory matrix.
Evans, Dafydd, Gillard, Jonathan William
openaire   +2 more sources

Vector extrapolation applied to truncated singular value decomposition and truncated iteration [PDF]

open access: yesJournal of Engineering Mathematics, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bouhamidi, A.   +4 more
openaire   +2 more sources

DEBLURRING STUDY OF DMSP/OLS NIGHTTIME LIGHT DATA BY RTSVD [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
DMSP/OLS, as the earliest Nighttime light remote sensing data, has great application value and can greatly improve the data quality by solving the blurring problem existing in the data.
C. Ren   +4 more
doaj   +1 more source

A New Algorithm for Ill-Posed Problem of GNSS-Based Ionospheric Tomography

open access: yesRemote Sensing, 2023
Ill-posedness of GNSS-based ionospheric tomography affects the stability and the accuracy of the inversion results. Truncated singular value decomposition (TSVD) is a common algorithm of ionospheric tomography reconstruction.
Debao Wen   +5 more
doaj   +1 more source

Singular Value Statistics of Matrix Products with Truncated Unitary Matrices [PDF]

open access: yesInternational Mathematics Research Notices, 2015
29 ...
Kieburg, Mario   +2 more
openaire   +3 more sources

Finding structure with randomness: Probabilistic algorithms for constructing approximate matrix decompositions [PDF]

open access: yes, 2010
Low-rank matrix approximations, such as the truncated singular value decomposition and the rank-revealing QR decomposition, play a central role in data analysis and scientific computing.
Halko, Nathan   +2 more
core   +6 more sources

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