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- research-articleJanuary 2020
Inexact Sequential Quadratic Optimization with Penalty Parameter Updates within the QP Solver
SIAM Journal on Optimization (SIOPT), Volume 30, Issue 3Pages 1822–1849https://doi.org/10.1137/18M1176488This paper focuses on the design of sequential quadratic optimization (commonly known as SQP) methods for solving large-scale nonlinear optimization problems. The most computationally demanding aspect of such an approach is the computation of the search ...
- research-articleJanuary 2016
A Derivative-Free Approach to Constrained Multiobjective Nonsmooth Optimization
SIAM Journal on Optimization (SIOPT), Volume 26, Issue 4Pages 2744–2774https://doi.org/10.1137/15M1037810In this work, we consider multiobjective optimization problems with both bound constraints on the variables and general nonlinear constraints, where objective and constraint function values can only be obtained by querying a black box. We define a ...
- articleJanuary 2016
Exact Penalty Functions and Convex Extensions of Functions in Schemes of Decomposition in Variables* Please check captured article title, if appropriate.
Cybernetics and Systems Analysis (KLU-CASA), Volume 52, Issue 1Pages 85–95https://doi.org/10.1007/s10559-016-9803-8Using exact penalty functions in schemes of decomposition in variables for nonlinear optimization make it possible to overcome problems related to implicit description of the feasible region of master problem. The paper deals with determining the values ...
- articleApril 2003
Routing and wavelength assignment in optical networks
IEEE/ACM Transactions on Networking (TON), Volume 11, Issue 2Pages 259–272https://doi.org/10.1109/TNET.2003.810321The problem of routing and wavelength assignment (RWA) is critically important for increasing the efficiency of wavelength-routed all-optical networks. Given the physical network structure and the required connections, the RWA problem is to select a ...
- articleJune 2002
Constrained Minima and Lipschitzian Penalties in Metric Spaces
SIAM Journal on Optimization (SIOPT), Volume 13, Issue 2Pages 619–633https://doi.org/10.1137/S105262340139625XIt is well known that a local minimizer of a constrained optimization problem with Lipschitzian objective is a free local minimizer of an assigned penalty function if the constraints satisfy an appropriate regularity condition. We use an upper Lipschitz ...
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- articleSeptember 2001
Exact Penalty Functions for Convex Bilevel Programming Problems
In this paper, we propose a new constraint qualification for convex bilevel programming problems. Under this constraint qualification, a locally and globally exact penalty function of order 1 for a single-level reformulation of convex bilevel ...
- articleJuly 1998
New Uniform Parametric Error Bounds
A uniform parametric error bound is a uniform error estimate for feasible solutions of a family of parametric mathematical programming problems. It has been proven useful in exact penalty formulation for bilevel programming problems. In this paper, we ...
- articleMarch 1997
Robust Recursive Quadratic Programming Algorithm Model with Global and Superlinear Convergence Properties
A new, robust recursive quadratic programming algorithm model based on a continuously differentiable merit function is introduced. The algorithm is globally and superlinearly convergent, uses automatic rules for choosing the penalty parameter, and can ...
- articleMarch 1997
A New Algorithm for Solving Strictly Convex Quadratic Programs
SIAM Journal on Optimization (SIOPT), Volume 7, Issue 3Pages 595–619https://doi.org/10.1137/S1052623493246045We reformulate convex quadratic programs with simple bound constraints and strictly convex quadratic programs as problems of unconstrained minimization of convex quadratic splines. Therefore, any algorithm for finding a minimizer of a convex quadratic ...
- research-articleAugust 1994
On Smoothing Exact Penalty Functions for Convex Constrained Optimization
A quadratic smoothing approximation to nondifferentiable exact penalty functions for convex constrained optimization is proposed and its properties are established. The smoothing approximation is used as the basis of an algorithm for solving problems with ...
- research-articleMay 1992
A Robust Trust Region Method for Constrained Nonlinear Programming Problems
Most of the published work on trust region algorithms for constrained optimization is derived from the original work of Fletcher on trust region algorithms for nondifferentiable exact penalty functions. These methods are restricted to applications where a ...
- articleApril 1992
Differential stability in non-Lipschitzian optimization
In this paper, upper and lower bounds are established for the Dini directional derivatives of the marginal function of an inequality-constrained mathematical program with right-hand-side perturbations. A nonsmooth analogue of the Cottle constraint ...
- articleApril 1992
An RQP algorithm using a differentiable exact penalty function for inequality constrained problems
In this paper we propose a recursive quadratic programming algorithm for nonlinear programming problems with inequality constraints that uses as merit function a differentiable exact penalty function. The algorithm incorporates an automatic adjustment ...
- articleMay 1991
Exact penalty functions in proximal bundle methods for constrained convex nondifferentiable minimization
This paper presents new versions of proximal bundle methods for solving convex constrained nondifferentiable minimization problems. The methods employź1 orźź exact penalty functions with new penalty updates that limit unnecessary penalty growth. In ...