Results 11 to 20 of about 229,971 (268)

Constrained Minimization Algorithms [PDF]

open access: yesEAS Publications Series, 2013
In this paper, we consider the inverse problem of restoring an unknown signal or image, knowing the transformation suffered by the unknowns. More specifically we deal with transformations described by a linear model linking the unknown signal to an unnoisy version of the data. The measured data are generally corrupted by noise.
H. Lantéri, C. Theys, C. Richard
openaire   +1 more source

Mathematical Camera Array Optimization for Face 3D Modeling Application

open access: yesSensors, 2023
Camera network design is a challenging task for many applications in photogrammetry, biomedical engineering, robotics, and industrial metrology, among other fields.
Bashar Alsadik   +3 more
doaj   +1 more source

Positive radial solutions for a class of quasilinear Schrödinger equations in $\mathbb{R}^3$

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2022
This paper is concerned with the following quasilinear Schrödinger equations of the form: \begin{equation*} -\Delta u-u\Delta (u^2)+u=|u|^{p-2}u, \qquad x\in \mathbb{R}^3, \end{equation*} where $p\in\left(2,12\right)$.
Zhongxiang Wang, Gao Jia, Weifeng Hu
doaj   +1 more source

Minimal constrained supergravity

open access: yesPhysics Letters B, 2017
We describe minimal supergravity models where supersymmetry is non-linearly realized via constrained superfields. We show that the resulting actions differ from the so called "de Sitter" supergravities because we consider constraints eliminating directly the auxiliary fields of the gravity multiplet.
CRIBIORI, NICCOLÒ   +3 more
openaire   +4 more sources

Constrained Least-Squares Parameter Estimation for a Double Layer Capacitor

open access: yesEnergies, 2023
This paper presents an estimation of the parameters for a Double Layer Super Capacitor (DLC) that is modelled with a two-branch circuit. The estimation is achieved using a constrained minimization technique, which is developed off-line and uses a single ...
Nayzel I. Jannif   +4 more
doaj   +1 more source

Hybrid Gradient-Projection Algorithm for Solving Constrained Convex Minimization Problems with Generalized Mixed Equilibrium Problems

open access: yesJournal of Function Spaces and Applications, 2012
It is well known that the gradient-projection algorithm (GPA) for solving constrained convex minimization problems has been proven to have only weak convergence unless the underlying Hilbert space is finite dimensional.
Lu-Chuan Ceng, Ching-Feng Wen
doaj   +1 more source

OPTIMASS: A Package for the Minimization of Kinematic Mass Functions with Constraints [PDF]

open access: yes, 2015
Reconstructed mass variables, such as $M_2$, $M_{2C}$, $M_T^\star$, and $M_{T2}^W$, play an essential role in searches for new physics at hadron colliders.
Cho, Won Sang   +7 more
core   +2 more sources

A Hybrid Gradient-Projection Algorithm for Averaged Mappings in Hilbert Spaces

open access: yesJournal of Applied Mathematics, 2012
It is well known that the gradient-projection algorithm (GPA) is very useful in solving constrained convex minimization problems. In this paper, we combine a general iterative method with the gradient-projection algorithm to propose a hybrid gradient ...
Ming Tian, Min-Min Li
doaj   +1 more source

Non-Convex Split Feasibility Problems: Models, Algorithms and Theory

open access: yesOpen Journal of Mathematical Optimization, 2020
In this paper, we propose a catalog of iterative methods for solving the Split Feasibility Problem in the non-convex setting. We study four different optimization formulations of the problem, where each model has advantages in different settings of the ...
Gibali, Aviv   +2 more
doaj   +1 more source

Sharp RIP Bound for Sparse Signal and Low-Rank Matrix Recovery [PDF]

open access: yes, 2013
This paper establishes a sharp condition on the restricted isometry property (RIP) for both the sparse signal recovery and low-rank matrix recovery.
Cai, T. Tony, Zhang, Anru
core   +3 more sources

Home - About - Disclaimer - Privacy