Results 91 to 100 of about 12,040 (299)

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Alternating minimization for recommender systems with sparse data

open access: yes, 2015
Alternating minimization is a popular approach to solving low-rank matrix completion problems. This algorithm forms the backbone of many recommendation systems, and is particularly successful on large datasets whose computation can be parallelized ...
Trefethen, Emma Javelle
core  

On a Combination of Alternating Minimization and Nesterov’s Momentum

open access: yes, 2021
Alternating minimization (AM) procedures are practically efficient in many applications for solving convex and non-convex optimization problems. On the other hand, Nesterov’s accelerated gradient is theoretically optimal first-order method for convex ...
Dvurechensky, Pavel   +3 more
core  

Alternating minimization and some generalizations of convexity

open access: yes, 2023
I will present my recent research in going beyond the quadratic cost in optimization, by replacing it with a general cost function. With Flavien Léger (INRIA Paris), we unveiled in https://arxiv.org/abs/2305.04917 a new class of gradient-type ...
Aubin, Pierre-Cyril
core   +1 more source

Point cloud denoising using a generalized error metric

open access: yesGraphical Models
Effective removal of noises from raw point clouds while preserving geometric features is the key challenge for point cloud denoising. To address this problem, we propose a novel method that jointly optimizes the point positions and normals.
Qun-Ce Xu, Yong-Liang Yang, Bailin Deng
doaj   +1 more source

Alternating Minimization for Mixed Linear Regression

open access: yes, 2013
Mixed linear regression involves the recovery of two (or more) unknown vectors from unlabeled linear measurements; that is, where each sample comes from exactly one of the vectors, but we do not know which one. It is a classic problem, and the natural and empirically most popular approach to its solution has been the EM algorithm. As in other settings,
Xinyang Yi   +2 more
openaire   +3 more sources

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein   +4 more
wiley   +1 more source

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

open access: yesAdvanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite   +5 more
wiley   +1 more source

Schulz-Snyder Phase Retrieval Algorithm as an Alternating Minimization Algorithm

open access: yes, 2011
We derive the Schulz-Snyder phase retrieval algorithm as an alternating minimization method, and discuss its advantages and drawbacks. An annealing-type Schulz-Snyder algorithm is proposed to avoid convergence to nonglobal solutions.
Öktem, Sevinç Figen, Blahut, Richard E
core   +1 more source

One‐bit DOA estimation in non‐uniform noise with alternating minimization method

open access: yesElectronics Letters
This letter presents a method to optimize the estimation of direction of arrival (DOA) using the uniform linear array (ULA) with one‐bit signals in the presence of non‐uniform noise. With the Toeplitz properties and the rank characteristics of the signal
Rui Li   +4 more
doaj   +1 more source

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