Results 81 to 90 of about 213 (150)

A class of gradient unconstrained minimization algorithms with adaptive stepsize

open access: yes, 2000
In this paper the development, convergence theory and numerical testing of a class of gradient unconstrained minimization algorithms with adaptive stepsize are presented.
Lambrinos, JN   +3 more
core  

A Combined Smoothing and Regularization Method for Monotone Second-Order Cone Complementarity Problems

open access: yes, 2003
The Second-Order Cone Complementarity Problem (SOCCP) is a wide class of problems containing the Nonlinear Complementarity Problem (NCP) and the Second-Order Cone Programming Problem (SOCP).
Nobuo Yamashita   +2 more
core  

Fixing and extending some recent results on the ADMM algorithm. [PDF]

open access: yesNumer Algorithms, 2021
Banert S, Boţ RI, Csetnek ER.
europepmc   +1 more source

Detection and Remediation of Stagnation in the Nelder-Mead Algorithm Using a Sufficient Decrease Condition

open access: yes, 1997
. The Nelder-Mead algorithm can stagnate and converge to a non-optimal point, even for very simple problems. In this note we propose a test for sufficient decrease which, if passed for the entire iteration, will guarantee convergence of the Nelder-Mead ...
C. T. Kelley
core  

A Subspace Limited Memory Quasi-Newton Algorithm for Large-Scale Nonlinear Bound Constrained Optimization

open access: yes, 1997
In this paper we propose a subspace limited memory quasi-Newton method for solving large-scale optimization with simple bounds on the variables. The limited memory quasiNewton method is used to update the variables with indices outside of the active set,
Y. Yuan, Q. Ni
core  

Superlinear Convergence And Implicit Filtering

open access: yes, 1999
. In this note we show how the implicit filtering algorithm can be coupled with the BFGS quasi-Newton update to obtain a superlinearly convergent iteration if the noise in the objective function decays sufficiently rapidly as the optimal point is ...
Choi Kelley, T. D. Choi, C. T. Kelley
core  

Remarks On The Numerical Solution Of Certain Linear Complementarity Problems

open access: yes, 2007
. In a recent paper, J. K. Aitchison and N. K. Upton have proposed a mathematical model of the behaviour of a cloud formed immediately after the sudden release of a pollutant, together with an algorithm for determining numerical solutions of the ...
Michele Benzi
core  

Convergence Analysis of Inexact Infeasible-Interior-Point-Algorithms for Solving Linear Programming Problems

open access: yes, 1997
. In this paper we present a convergence analysis for some inexact variants of the infeasible-interior-point-algorithm of Kojima, Megiddo and Mizuno. These variants allow the use of search directions that are calculated from the defining linear system ...
Janos Korzak, Preprint Bughw-sc
core  

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