Results 1 to 10 of about 41,026 (224)

An Efficient Augmented Lagrangian Method for Statistical X-Ray CT Image Reconstruction. [PDF]

open access: yesPLoS ONE, 2015
Statistical iterative reconstruction (SIR) for X-ray computed tomography (CT) under the penalized weighted least-squares criteria can yield significant gains over conventional analytical reconstruction from the noisy measurement.
Jiaojiao Li   +8 more
doaj   +2 more sources

An accelerated proximal augmented Lagrangian method and its application in compressive sensing [PDF]

open access: yesJournal of Inequalities and Applications, 2017
As a first-order method, the augmented Lagrangian method (ALM) is a benchmark solver for linearly constrained convex programming, and in practice some semi-definite proximal terms are often added to its primal variable’s subproblem to make it more ...
Min Sun, Jing Liu
doaj   +2 more sources

Augmented Lagrangian method for imposing nonlinear multi freedom constraints in static analysis for frames using FEM [PDF]

open access: yesE3S Web of Conferences, 2021
This paper focuses on the treatment of nonlinear multi freedom constraints using an augmented Lagrangian method in finite element analysis of frames. The process of imposing boundary constraints is developed by changing the assembly stiffness equation to
Bich Quyen Vu Thi   +3 more
doaj   +1 more source

Pareto front approximation through a multi-objective augmented Lagrangian method

open access: yesEURO Journal on Computational Optimization, 2021
In this manuscript, we consider smooth multi-objective optimization problems with convex constraints. We propose an extension of a multi-objective augmented Lagrangian Method from recent literature.
Guido Cocchi   +2 more
doaj   +1 more source

A Filter-SQP strategy for training Support Vector Machine models

open access: yesREMAT, 2023
This paper introduces a filtering strategy for addressing optimization problems arising in binary Support Vector Machine classification. The training optimization problem aims to solve the dual formulation which involves a quadratic objective function ...
Tiago Lino Bello   +3 more
doaj   +1 more source

SerialTrack: ScalE and rotation invariant augmented Lagrangian particle tracking

open access: yesSoftwareX, 2022
We present a new particle tracking algorithm for accurately resolving large deformation and rotational motion fields, which takes advantage of both local and global particle tracking algorithms.
Jin Yang   +9 more
doaj   +1 more source

Augmented Lagrangian methods for degenerate Hamilton–Jacobi equations [PDF]

open access: yesCalculus of Variations and Partial Differential Equations, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ennaji, Hamza   +2 more
openaire   +1 more source

The Alternating Direction Search Pattern Method for Solving Constrained Nonlinear Optimization Problems

open access: yesMathematics, 2023
We adopt the alternating direction search pattern method to solve the equality and inequality constrained nonlinear optimization problems. Firstly, a new augmented Lagrangian function with a nonlinear complementarity function is proposed to transform the
Aifen Feng   +3 more
doaj   +1 more source

Parallel and distributed Machine Learning on Augmented Lagrangian Algorithms [PDF]

open access: yesInternational Journal of Electronics and Telecommunications
Constrained optimization is central to large-scale machine learning, particularly in parallel and distributed environments. This paper presents a comprehensive study of augmented Lagrangian–based algorithms for such problems, including classical ...
Anthony Nwachukwu, Andrzej Karbowski
doaj   +1 more source

A Modified Augmented Lagrange Multiplier Method for Non-Linear Programming [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2013
In this paper, we have investigated a new algorithm which employs an  Augmented Lagrangian Method (ALM). It overcomes many of the difficulties associated with the Penalty function method.  The new incorporate algorithm has been proved very effective with
Abbas Al-Bayati, Eman Hamed
doaj   +1 more source

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