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Sparse Approximations with Interior Point Methods [PDF]

open access: yesSIAM Review, 2022
Large-scale optimization problems that seek sparse solutions have become ubiquitous. They are routinely solved with various specialized first-order methods. Although such methods are often fast, they usually struggle with not-so-well conditioned problems.
Valentina De Simone   +4 more
openaire   +5 more sources

Updating constraint preconditioners for KKT systems in quadratic programming via low-rank corrections [PDF]

open access: yes, 2015
This work focuses on the iterative solution of sequences of KKT linear systems arising in interior point methods applied to large convex quadratic programming problems.
Bellavia, S.   +3 more
core   +2 more sources

Structure-Exploiting Interior Point Methods [PDF]

open access: yes, 2020
Interior point methods are among the most popular techniques for large scale nonlinear optimization, owing to their intrinsic ability of scaling to arbitrary large problem sizes. Their efficiency has attracted in recent years a lot of attention due to increasing demand for large scale optimization in industry and engineering.
Jurai Kardos   +2 more
openaire   +2 more sources

On the relationship of interior‐point methods

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1992
Summary: We show that the moving directions of the primal-affine scaling method (with logarithmic barrier function), the dual-affine scaling method (with logarithmic barrier function), and the primal-dual interior point method are merely the Newton directions along three different algebraic ``paths'' that lead to a solution of the Karush-Kuhn-Tucker ...
Ruey-Lin Sheu, Shu-Cherng Fang
openaire   +2 more sources

The Symbolic Interior Point Method

open access: yesProceedings of the AAAI Conference on Artificial Intelligence, 2017
Numerical optimization is arguably the most prominent computational framework in machine learning and AI. It can be seen as an assembly language for hard combinatorial problems ranging from classification and regression in learning, to computing optimal policies and equilibria in decision theory, to entropy minimization in information ...
Mladenov, Martin   +2 more
openaire   +3 more sources

An Interior-Point Method for Semidefinite Programming [PDF]

open access: yesSIAM Journal on Optimization, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Christoph Helmberg   +3 more
openaire   +1 more source

On the stationary Cahn-Hilliard equation: Interior spike solutions [PDF]

open access: yes, 1998
We study solutions of the stationary Cahn-Hilliard equation in a bounded smooth domain which have a spike in the interior. We show that a large class of interior points (the "nondegenerate peak" points) have the following property: there exist such ...
Wei, J, Winter, M
core   +1 more source

Solving the continuous nonlinear resource allocation problem with an interior point method

open access: yes, 2013
Resource allocation problems are usually solved with specialized methods exploiting their general sparsity and problem-specific algebraic structure. We show that the sparsity structure alone yields a closed-form Newton search direction for the generic ...
Rohal, James J., Wright, Stephen E.
core   +1 more source

Interior Point Methods

open access: yesJournal of Computational and Applied Mathematics, 2000
The simplex method starts from a basic feasible solution and moves along the boundary of the feasible region until an optimum is reached. At each step, the algorithm brings only one new variable into the basic set, regardless of the total number of variables.
Potra, Florian A., Wright, Stephen J.
  +4 more sources

Interior point methods : current status and future directions [PDF]

open access: yes, 1996
Cover title.Includes bibliographical references (leaves 23-24).Robert Freund and Shinji ...

core   +3 more sources

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