Results 41 to 50 of about 240,751 (277)

Detection and Denoising of Microseismic Events Using Time–Frequency Representation and Tensor Decomposition

open access: yesIEEE Access, 2018
Reliable detection and recovery of a microseismic event in large volume of passive monitoring data is usually a challenging task due to the low signal-to-noise ratio environment.
Naveed Iqbal   +5 more
doaj   +1 more source

Closed-Loop Subspace Identification for Stable/ Unstable Systems Using Data Compression and Nuclear Norm Minimization

open access: yesIEEE Access, 2022
This paper provides a subspace method for closed-loop identification, which clearly specifies the model order from noisy measurement data. The method can handle long I/O data of the target system to be noise-tolerant and determine the model order via ...
Ichiro Maruta, Toshiharu Sugie
doaj   +1 more source

Multi-channel nuclear norm minus Frobenius norm minimization for color image denoising

open access: yesSignal Processing, 2023
Color image denoising is frequently encountered in various image processing and computer vision tasks. One traditional strategy is to convert the RGB image to a less correlated color space and denoise each channel of the new space separately. However, such a strategy can not fully exploit the correlated information between channels and is inadequate to
Yiwen Shan, Dong Hu, Zhi Wang, Tao Jia
openaire   +2 more sources

Improving compressed sensing with the diamond norm

open access: yes, 2016
In low-rank matrix recovery, one aims to reconstruct a low-rank matrix from a minimal number of linear measurements. Within the paradigm of compressed sensing, this is made computationally efficient by minimizing the nuclear norm as a convex surrogate ...
Eisert, Jens   +3 more
core   +1 more source

Image Classification Using Low-Rank Regularized Extreme Learning Machine

open access: yesIEEE Access, 2019
Extreme learning machine (ELM), a least-square-based learning algorithm, is a competitive machine learning method and provides efficient unified learning solutions for the applications of classification and regression.
Qin Li   +4 more
doaj   +1 more source

Hyper-Laplacian Regularized Multi-View Subspace Clustering With a New Weighted Tensor Nuclear Norm

open access: yesIEEE Access, 2021
In this paper, we present a hyper-Laplacian regularized method WHLR-MSC with a new weighted tensor nuclear norm for multi-view subspace clustering. Specifically, we firstly stack the subspace representation matrices of the different views into a tensor ...
Qingjiang Xiao   +4 more
doaj   +1 more source

High‐dimensional regression coefficient estimation by nuclear norm plus l1 norm penalization

open access: yesStat, 2023
We propose a new estimator of the regression coefficients for a high‐dimensional linear regression model, which is derived by replacing the sample predictor covariance matrix in the ordinary least square (OLS) estimator with a different predictor covariance matrix estimate obtained by a nuclear norm plus norm penalization.
Farne, Matteo, Montanari, Angela
openaire   +1 more source

Low-Rank Inducing Norms with Optimality Interpretations

open access: yes, 2018
Optimization problems with rank constraints appear in many diverse fields such as control, machine learning and image analysis. Since the rank constraint is non-convex, these problems are often approximately solved via convex relaxations.
Giselsson, Pontus, Grussler, Christian
core   +1 more source

Subsampled Blind Deconvolution via Nuclear Norm Minimization [PDF]

open access: yes, 2020
Many phenomena can be modeled as systems that preform convolution, including negative effects on data like translation/motion blurs. Blind Deconvolution (BD) is a process used to reverse the negative effects of a system by effectively undoing the ...
Thieken, Alexander
core  

A concise proof to the spectral and nuclear norm bounds through tensor partitions

open access: yesOpen Mathematics, 2019
On estimations of the lower and upper bounds for the spectral and nuclear norm of a tensor, Li established neat bounds for the two norms based on regular tensor partitions, and proposed a conjecture for the same bounds to be hold based on general tensor ...
Kong Xu
doaj   +1 more source

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