Results 111 to 120 of about 104,269 (299)

Zero or near-to-zero Lagrange multipliers in linearly constrained nonlinear programming [PDF]

open access: yes, 1982
We discuss in this work the using of Lagrange multipliers estimates in linearly constrained nonlinear programming algorithms and the implication of zero or near-to-zero Lagrange multipliers. Some methods for estimating the tendency of the multipliers are
Escudero, L. F.
core   +1 more source

An Active-Set Algorithm for Convex Quadratic Programming Subject to Box Constraints with Applications in Non-Linear Optimization and Machine Learning

open access: yesMathematics
A quadratic programming problem with positive definite Hessian subject to box constraints is solved, using an active-set approach. Convex quadratic programming (QP) problems with box constraints appear quite frequently in various real-world applications.
Konstantinos Vogklis, Isaac E. Lagaris
doaj   +1 more source

Rate-distortion Optimization Using Adaptive Lagrange Multipliers [PDF]

open access: yes, 2018
In current standardized hybrid video encoders, the Lagrange multiplier determination model is a key component in rate-distortion optimization. This originated some 20 years ago based on an entropy-constrained high-rate approximation and experimental ...
Bull, David, Zhang, Aaron
core   +1 more source

Labor Market Institutions, Fiscal Multipliers, and Macroeconomic Volatility

open access: yesJournal of Applied Econometrics, EarlyView.
ABSTRACT How do labor market institutions shape the transmission of government spending shocks and macroeconomic volatility? We develop a theoretical model in which labor market institutions affect fiscal transmission through their effect on wage rigidity, job separation, and matching frictions.
Maximilian Boeck   +2 more
wiley   +1 more source

The Effect of Parental Migration on Children Left Behind: Meta‐Analytical Evidence on Education and Child Labour

open access: yesJournal of International Development, EarlyView.
ABSTRACT This study provides systematic review and meta‐analytical evidence on how parental migration affects children left behind. We reviewed 44 papers on education and child labour, plus 57 studies on remittances and aspirations. We find no meaningful average effect of parental migration on education or labour outcomes. However, after correcting for
Emily Bergner   +2 more
wiley   +1 more source

A remark on infinite-dimensional variational inequalities

open access: yesLe Matematiche, 1994
An infinite-dimensional Quasi-Variational Inequality is considered, whose domain in expressed as intersection of the level sets of functionals having infinite-dimensional image. A proposal is made to handle it by means of Lagrange multipliers.
Franco Giannessi
doaj  

Rainfall‐Induced Physical Crusting Is Associated With Near‐Surface Structural Degradation and Strain Localization During Drying in Loess Soil

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Rainfall‐induced physical crusting is associated with degradation of near‐surface soil structure, but its pore‐scale structural and mechanical evolution during drying remains poorly resolved. We combined time‐resolved X‐ray computed tomography (XCT), digital volume correlation (DVC), and surface‐aligned stratification to track pore ...
Ruikun Feng   +4 more
wiley   +1 more source

A highly accurate numerical method for solving boundary value problem of generalized Bagley‐Torvik equation

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
A highly accurate numerical method is given for the solution of boundary value problem of generalized Bagley‐Torvik (BgT) equation with Caputo derivative of order 0<β<2$$ 0<\beta <2 $$ by using the collocation‐shooting method (C‐SM). The collocation solution is constructed in the space Sm+1(1)$$ {S}_{m+1}^{(1)} $$ as piecewise polynomials of degree at ...
Suzan Cival Buranay   +2 more
wiley   +1 more source

Optimal Design of Elastic Plates: Hybrid Numerical Method Based on Homogenization and Shape Derivative

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT This paper focuses on optimal design problems in the context of the Kirchhoff‐Love model for pure bending of a thin, solid, symmetric plate under a transverse load. The objective is to simultaneously determine the optimal outer shape of the domain and the distribution of two isotropic materials within the domain in order to minimize compliance.
Ivana Crnjac   +2 more
wiley   +1 more source

MODERNIZATION OF MEANS FOR ANALYSES AND SOLUTION OF NONLINEAR PROGRAMMING PROBLEMS

open access: yesQuantitative Methods in Economics, 2015
The problems of optimization for nonlinear programming (NLP) with constraints inequalities are considered. Definition of condition-indicator as quantitative criterion of the properties of Lagrange function is justified.
Alexandr Trunov
doaj  

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