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Local search inequalities

open access: yesDiscrete Optimization, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
LANCIA, Giuseppe   +2 more
openaire   +1 more source

Iterated Local Search [PDF]

open access: yes, 2001
Iterated Local Search (ILS) has many of the desirable features of a metaheuristic: it is simple, easy to implement, robust, and highly effective. The essential idea of ILS lies in focusing the search not on the full space of solutions but on a smaller subspace defined by the solutions that are locally optimal for a given optimization engine.
Helena Ramalhinho Dias Lourenço   +2 more
openaire   +5 more sources

Local Search for Unsatisfiability [PDF]

open access: yes, 2006
Local search is widely applied to satisfiable SAT problems, and on some classes outperforms backtrack search. An intriguing challenge posed by Selman, Kautz and McAllester in 1997 is to use it instead to prove unsatisfiability. We investigate two distinct approaches.
Steven D. Prestwich, Inês Lynce
openaire   +2 more sources

Experiments to shed light on the best way to use Iterated Local Search for a complex combinatorial problem [PDF]

open access: yes, 2007
Iterated Local Search (ILS) is a popular metaheuristic search technique for use on combinatorial optimisation problems. As with most such techniques, there are many ways in which ILS can be implemented.
Wright, M B
core   +4 more sources

On the Local Convergence of Pattern Search [PDF]

open access: yesSIAM Journal on Optimization, 2003
The authors consider local convergence properties of pattern search as a class of direct search methods for solving nonlinear programming problems. For simplicity, only the unconstrained case \(\min_{x\in\mathbb{R}^n}\,f(x)\) is considered. Numerical tests are given.
Elizabeth D. Dolan   +2 more
openaire   +2 more sources

Unsupervised Local Feature Hashing for Image Similarity Search [PDF]

open access: yes, 2016
The potential value of hashing techniques has led to it becoming one of the most active research areas in computer vision and multimedia. However, most existing hashing methods for image search and retrieval are based on global feature representations ...
Liu, Li, Shao, Ling, Yu, Mengyang
core   +1 more source

An analysis of Harmony Search for solving Sudoku puzzles

open access: yesSoft Computing Letters, 2021
The Harmony Search metaheuristic has been used to solve many different optimization problems. Several papers examined its effectiveness for solving Sudoku puzzles.
Rachel H. Chae, Amelia C. Regan
doaj   +1 more source

An Improved Shuffled Frog-Leaping Algorithm for Flexible Job Shop Scheduling Problem

open access: yesAlgorithms, 2015
The flexible job shop scheduling problem is a well-known combinatorial optimization problem. This paper proposes an improved shuffled frog-leaping algorithm to solve the flexible job shop scheduling problem. The algorithm possesses an adjustment sequence
Kong Lu   +5 more
doaj   +1 more source

Hybrid Gravitational Search Algorithm Based on Fuzzy Logic

open access: yesIEEE Access, 2017
Gravitational search algorithm (GSA) is a novel heuristic optimization algorithm which is used to search for the global optimal solution by iteration. However, GSA is easy to fall into local minima and convergence slowly.
Kun Qian, Wei Li, Weiyi Qian
doaj   +1 more source

An Effective Decomposition-Based Stochastic Algorithm for Solving the Permutation Flow-Shop Scheduling Problem

open access: yesAlgorithms, 2021
This paper presents an effective stochastic algorithm that embeds a large neighborhood decomposition technique into a variable neighborhood search for solving the permutation flow-shop scheduling problem. The algorithm first constructs a permutation as a
Mehrdad Amirghasemi
doaj   +1 more source

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