Authors: Matić, Dragan
Kratica, Jozef 
Filipović, Vladimir
Dugošija, Đorđe
Title: Variable neighborhood search for Multiple Level Warehouse Layout Problem
Journal: Electronic Notes in Discrete Mathematics
Volume: 39
First page: 161
Last page: 168
Issue Date: 1-Dec-2012
ISSN: 1571-0653
DOI: 10.1016/j.endm.2012.10.022
Abstract: 
In this paper we present a variable neighborhood search algorithm (VNS) for solving Multiple Level Warehouse Layout Problem (MLWLP). The algorithm deals with a specific representation of the solution, enabling the effective application of the shaking and local search procedures. System of neighborhoods changes the assignment ordering for an increasing number of items, while local search procedure tries to locally improve the solution by swapping the assignment ordering for pairs of items. Numerical experiments are performed on instances known in the literature. Computational results show that the proposed VNS achieves all optimal solutions for smaller instances, while for larger instances it finds rather better solutions than previously known method.
Keywords: Discrete Optimization | Layout problem | Variable Neighborhood Search
Publisher: Elsevier
Project: Mathematical Modelas and Optimization Methods on Large-Scale Systems 
Graph theory and mathematical programming with applications in chemistry and computer science 

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