Results 41 to 50 of about 18,347 (178)

Solving the Traveling Salesman Problem on the D-Wave Quantum Computer

open access: yesFrontiers in Physics, 2021
The traveling salesman problem is a well-known NP-hard problem in combinatorial optimization. This paper shows how to solve it on an Ising Hamiltonian based quantum annealer by casting it as a quadratic unconstrained binary optimization (QUBO) problem ...
Siddharth Jain
doaj   +1 more source

f-Flip strategies for unconstrained binary quadratic programming [PDF]

open access: yes, 2015
Unconstrained binary quadratic programming (UBQP) provides a unifying modeling and solution framework for solving a remarkable range of binary optimization problems, including many accompanied by constraints.
F. Glover, J.K. Hao
core   +4 more sources

Petri Net Modeling for Ising Model Formulation in Quantum Annealing

open access: yesApplied Sciences, 2021
Quantum annealing is an emerging new platform for combinatorial optimization, requiring an Ising model formulation for optimization problems. The formulation can be an essential obstacle to the permeation of this innovation into broad areas of everyday ...
Morikazu Nakamura   +2 more
doaj   +1 more source

Ising formulations of many NP problems [PDF]

open access: yes, 2014
We provide Ising formulations for many NP-complete and NP-hard problems, including all of Karp's 21 NP-complete problems. This collects and extends mappings to the Ising model from partitioning, covering and satisfiability.
Lucas, Andrew
core   +3 more sources

An Augmented Lagrangian Approach to the Constrained Optimization Formulation of Imaging Inverse Problems [PDF]

open access: yes, 2009
We propose a new fast algorithm for solving one of the standard approaches to ill-posed linear inverse problems (IPLIP), where a (possibly non-smooth) regularizer is minimized under the constraint that the solution explains the observations sufficiently ...
Afonso, Manya V.   +2 more
core   +2 more sources

Fast Image Recovery Using Variable Splitting and Constrained Optimization [PDF]

open access: yes, 2009
We propose a new fast algorithm for solving one of the standard formulations of image restoration and reconstruction which consists of an unconstrained optimization problem where the objective includes an $\ell_2$ data-fidelity term and a non-smooth ...
Afonso, Manya V.   +2 more
core   +2 more sources

Computational Complexity of Quadratic Unconstrained Binary Optimization

open access: yes, 2021
In this paper, we study the computational complexity of the quadratic unconstrained binary optimization (QUBO) problem under the functional problem FP^NP categorization. We focus on four sub-classes: (1) When all coefficients are integers QUBO is FP^NP-complete.
openaire   +2 more sources

Converting of Boolean Expression to Linear Equations, Inequalities and QUBO Penalties for Cryptanalysis

open access: yesAlgorithms, 2022
There exists a wide range of constraint programming (CP) problems defined on Boolean functions depending on binary variables. One of the approaches to solving CP problems is using specific appropriate solvers, e.g., SAT solvers.
Aleksey I. Pakhomchik   +3 more
doaj   +1 more source

Tight Sum-of-Squares lower bounds for binary polynomial optimization problems [PDF]

open access: yes, 2016
We give two results concerning the power of the Sum-of-Squares(SoS)/Lasserre hierarchy. For binary polynomial optimization problems of degree $2d$ and an odd number of variables $n$, we prove that $\frac{n+2d-1}{2}$ levels of the SoS/Lasserre hierarchy ...
Kurpisz, Adam   +2 more
core   +2 more sources

Experimental study on the information disclosure problem: Branch-and-bound and QUBO solver

open access: yesFrontiers in Applied Mathematics and Statistics, 2023
The aim of this study was to explore the information disclosure (ID) problem, which involves selecting pairs of two sides before matching toward user-oriented optimization. This problem is known to be useful for mobility-on-demand (MoD) platforms because
Keisuke Otaki   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy