Results 21 to 30 of about 5,119,730 (291)

Improved Firefly Algorithm with Variable Neighborhood Search for Data Clustering

open access: yesمجلة بغداد للعلوم, 2022
Among the metaheuristic algorithms, population-based algorithms are an explorative search algorithm superior to the local search algorithm in terms of exploring the search space to find globally optimal solutions.
Hayder Naser Khraibet Al-Behadili
doaj   +1 more source

A variable neighborhood search with an effective local search for uncapacitated multilevel lot-sizing problems [PDF]

open access: yes, 2014
In this study, we improved the variable neighborhood search (VNS) algorithm for solving uncapacitated multilevel lot-sizing (MLLS) problems. The improvement is two-fold.
Xu, Yuchun   +4 more
core   +1 more source

Self-Adjusting Variable Neighborhood Search Algorithm for Near-Optimal k-Means Clustering

open access: yesComputation, 2020
The k-means problem is one of the most popular models in cluster analysis that minimizes the sum of the squared distances from clustered objects to the sought cluster centers (centroids).
Lev Kazakovtsev   +3 more
doaj   +1 more source

Primal-dual variable neighborhood search for the simple plant-location problem [PDF]

open access: yes, 2007
Copyright @ 2007 INFORMSThe variable neighborhood search metaheuristic is applied to the primal simple plant-location problem and to a reduced dual obtained by exploiting the complementary slackness conditions.
Brimberg, J   +3 more
core   +1 more source

A variable neighborhood-based heuristic for the heterogeneous fleet vehicle routing problem [PDF]

open access: yes, 2008
The heterogeneous fleet vehicle routing problem is investigated using some adaptations of the variable neighborhood search (VNS). The initial solution is obtained by Dijkstra's algorithm based on a cost network constructed by the sweep algorithm and the ...
Imran, Arif   +2 more
core   +1 more source

Variable neighbourhood decomposition search for 0-1 mixed integer programs [PDF]

open access: yes, 2009
In this paper we propose a new hybrid heuristic for solving 0-1 mixed integer programs based on the principle of variable neighbourhood decomposition search. It combines variable neighbourhood search with a general-purpose CPLEX MIP solver.
Hanafi, S   +7 more
core   +1 more source

Designing WDM networks by a variable neighborhood search

open access: yesJournal of Telecommunications and Information Technology, 2006
With the ever-rising data volume that is demanded by the market, network planning in order to minimize the necessary investment while meeting the demands is constantly an important task for the network providers.
Belén Melián-Batista   +2 more
doaj   +1 more source

Variable Neighborhood Search for Cost Function Networks

open access: yes, 2023
International audienceCost Function Networks (CFNs) offer a simple and general framework for modeling and solving constrained optimization problems which allows to deal with over-constrained problems as well as preferences between solutions. Most solving
Boizumault, Patrice   +3 more
core   +1 more source

A Variable Neighborhood Search Method with a Tabu List and Local Search for Optimizing Routing in Trucks in Maritime Ports

open access: yesMathematics, 2023
Logistics problems represent an important class of real-world problems where even small improvements in solution quality can lead to significant decreases in operational costs.
Luka Matijević   +2 more
doaj   +1 more source

Bringing order into the neighborhoods: relaxation guided variable neighborhood search [PDF]

open access: yesJournal of Heuristics, 2007
In this article we investigate a new variant of Variable Neighborhood Search (VNS): Relaxation Guided Variable Neighborhood Search. It is based on the general VNS scheme and a new Variable Neighborhood Descent (VND) algorithm. The ordering of the neighborhood structures in this VND is determined dynamically by solving relaxations of them. The objective
Jakob Puchinger, Günther R. Raidl
openaire   +2 more sources

Home - About - Disclaimer - Privacy