Results 41 to 50 of about 22,651 (215)

Variational quantum algorithm for unconstrained black box binary optimization: Application to feature selection [PDF]

open access: yesQuantum, 2023
We introduce a variational quantum algorithm to solve unconstrained black box binary optimization problems, i.e., problems in which the objective function is given as black box.
Christa Zoufal   +8 more
doaj   +1 more source

Multiblock ADMM Heuristics for Mixed-Binary Optimization on Classical and Quantum Computers

open access: yesIEEE Transactions on Quantum Engineering, 2020
Solving combinatorial optimization problems on current noisy quantum devices is currently being advocated for (and restricted to) binary polynomial optimization with equality constraints via quantum heuristic approaches.
Claudio Gambella, Andrea Simonetto
doaj   +1 more source

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

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

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

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

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

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

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

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