Results 11 to 20 of about 33,460 (204)

Enhancing pseudo-telepathy in the magic square game. [PDF]

open access: yesPLoS ONE, 2013
We study the possibility of reversing an action of a quantum channel. Our principal objective is to find a specific channel that reverses as accurately as possible an action of a given quantum channel. To achieve this goal we use semidefinite programming.
Lukasz Pawela   +3 more
doaj   +1 more source

Invariant Semidefinite Programs [PDF]

open access: yes, 2011
In the last years many results in the area of semidefinite programming were obtained for invariant (finite dimensional, or infinite dimensional) semidefinite programs - SDPs which have symmetry. This was done for a variety of problems and applications. The purpose of this handbook chapter is to give the reader the necessary background for dealing with ...
Bachoc, C.   +3 more
openaire   +3 more sources

AC Optimal Power Flow: a Conic Programming relaxation and an iterative MILP scheme for Global Optimization

open access: yesOpen Journal of Mathematical Optimization, 2022
We address the issue of computing a global minimizer of the AC Optimal Power Flow problem. We introduce valid inequalities to strengthen the Semidefinite Programming relaxation, yielding a novel Conic Programming relaxation.
Oustry, Antoine
doaj   +1 more source

A superlinearly convergent SSDP algorithm for nonlinear semidefinite programming

open access: yesJournal of Inequalities and Applications, 2019
In this paper, we present a sequential semidefinite programming (SSDP) algorithm for nonlinear semidefinite programming. At each iteration, a linear semidefinite programming subproblem and a modified quadratic semidefinite programming subproblem are ...
Jian Ling Li, Hui Zhang
doaj   +1 more source

Semidefinite Programming and Ramsey Numbers [PDF]

open access: yesSIAM Journal on Discrete Mathematics, 2021
Finding exact Ramsey numbers is a problem typically restricted to relatively small graphs. The flag algebra method was developed to find asymptotic results for very large graphs, so it seems that the method is not suitable for finding small Ramsey numbers. But this intuition is wrong, and we will develop a technique to do just that in this paper.
Bernard Lidický, Florian Pfender
openaire   +4 more sources

Entropy-Penalized Semidefinite Programming [PDF]

open access: yesProceedings of the Twenty-Eighth International Joint Conference on Artificial Intelligence, 2019
Low-rank methods for semi-definite programming (SDP) have gained a lot of interest recently, especially in machine learning applications. Their analysis often involves determinant-based or Schatten-norm penalties, which are difficult to implement in practice due to high computational efforts.
Krechetov, Mikhail   +3 more
openaire   +2 more sources

Quantum Goemans-Williamson Algorithm with the Hadamard Test and Approximate Amplitude Constraints [PDF]

open access: yesQuantum, 2023
Semidefinite programs are optimization methods with a wide array of applications, such as approximating difficult combinatorial problems. One such semidefinite program is the Goemans-Williamson algorithm, a popular integer relaxation technique.
Taylor L. Patti   +3 more
doaj   +1 more source

Efficient Semidefinite Programming with Approximate ADMM [PDF]

open access: yesJournal of Optimization Theory and Applications, 2021
AbstractTenfold improvements in computation speed can be brought to the alternating direction method of multipliers (ADMM) for Semidefinite Programming with virtually no decrease in robustness and provable convergence simply by projecting approximately to the Semidefinite cone.
Rontsis, N, Goulart, P, Nakatsukasa, Y
openaire   +2 more sources

A Customized ADMM Approach for Large-Scale Nonconvex Semidefinite Programming

open access: yesMathematics, 2023
We investigate a class of challenging general semidefinite programming problems with extra nonconvex constraints such as matrix rank constraints. This problem has extensive applications, including combinatorial graph problems, such as MAX-CUT and ...
Chuangchuang Sun
doaj   +1 more source

ON OPTIMUM DESIGN OF FRAME STRUCTURES

open access: yesActa Polytechnica CTU Proceedings, 2020
Optimization of frame structures is formulated as a non-convex optimization problem, which is currently solved to local optimality. In this contribution, we investigate four optimization approaches: (i) general non-linear optimization, (ii) optimality ...
Marek Tyburec   +3 more
doaj   +1 more source

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