Results 51 to 60 of about 337,735 (278)

Hyperspectral image compressed processing: Evolutionary multi-objective optimization sparse decomposition.

open access: yesPLoS ONE, 2022
In the compressed processing of hyperspectral images, orthogonal matching pursuit algorithm (OMP) can be used to obtain sparse decomposition results.
Li Wang, Wei Wang
doaj   +1 more source

On Intercept Probability Minimization under Sparse Random Linear Network Coding [PDF]

open access: yes, 2019
This paper considers a network where a node wishes to transmit a source message to a legitimate receiver in the presence of an eavesdropper. The transmitter secures its transmissions employing a sparse implementation of Random Linear Network Coding (RLNC)
Nix, Andrew   +2 more
core   +3 more sources

A Sidelobe Suppression Method for Circular Ground-Based SAR 3D Imaging Based on Sparse Optimization of Radial Phase-Center Distribution

open access: yesRemote Sensing, 2022
Circular ground-based SAR (GBSAR) is a new 3D imaging GBSAR with the potential of acquiring high-quality 3D SAR images and 3D deformation. However, its donut-shaped spectrum and short radius of antenna rotation cause high sidelobes on 3D curved surfaces,
Qiming Zhang   +3 more
doaj   +1 more source

Optimal Frequency Reuse in HetNets With In-Band Relays

open access: yesIEEE Access, 2018
In-band relay nodes can be utilized to enhance the coverage of heterogeneous networks in a cost-effective way. However, the wireless backhaul links of in-band relay nodes also consume the limited spectrum resources.
Shengda Jin   +4 more
doaj   +1 more source

Sparse sum-of-squares (SOS) optimization: A bridge between DSOS/SDSOS and SOS optimization for sparse polynomials

open access: yes, 2018
Optimization over non-negative polynomials is fundamental for nonlinear systems analysis and control. We investigate the relation between three tractable relaxations for optimizing over sparse non-negative polynomials: sparse sum-of-squares (SSOS ...
Fantuzzi, Giovanni   +2 more
core   +1 more source

Variational Destriping in Remote Sensing Imagery: Total Variation with L1 Fidelity

open access: yesRemote Sensing, 2018
This paper introduces a variational method for destriping data acquired by pushbroom-type satellite imaging systems. The model leverages sparsity in signals and is based on current research in sparse optimization and compressed sensing.
Igor Yanovsky, Konstantin Dragomiretskiy
doaj   +1 more source

Optimal Sparse Survival Trees

open access: yesProceedings of machine learning research
AISTATS2024 camera ready version.
Zhang, Rui   +3 more
openaire   +3 more sources

Adaptively Detecting the Transient Feature of Faulty Wind Turbine Planetary Gearboxes by the Improved Kurtosis and Iterative Thresholding Algorithm

open access: yesIEEE Access, 2018
It is significant for diagnosing the early faults of wind turbine planetary gearboxes. However, the weak transient feature generated by the early gear failure is often submerged in other vibration signals and noise, thus this paper discusses a new ...
Yi Qin, Jingqiang Zou, Folin Cao
doaj   +1 more source

An Asynchronous Parallel Approach to Sparse Recovery

open access: yes, 2017
Asynchronous parallel computing and sparse recovery are two areas that have received recent interest. Asynchronous algorithms are often studied to solve optimization problems where the cost function takes the form $\sum_{i=1}^M f_i(x)$, with a common ...
Needell, Deanna, Woolf, Tina
core   +1 more source

Sparse seismic imaging using variable projection

open access: yes, 2012
We consider an important class of signal processing problems where the signal of interest is known to be sparse, and can be recovered from data given auxiliary information about how the data was generated.
Aravkin, Aleksandr Y.   +2 more
core   +1 more source

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