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The single-allocation hierarchical hub-median problem with fuzzy flows

Davari, Soheil and Zarandi, Mohammad Hossein Fazel 2013. The single-allocation hierarchical hub-median problem with fuzzy flows. Presented at: 5th International Workshop Soft Computing Applications, Hungary, 22 - 24 2012. Published in: Balas, Valentina Emilia, Fodor, János, Várkonyi-Kóczy, Annamária R., Dombi, Joszef and Jain, Lakhmi C. eds. Proceedings of the 5th International Workshop Soft Computing Applications (SOFA). SOFT COMPUTING APPLICATIONS. Advances in Intelligent Systems and Computing , vol.195 Springer Berlin Heidelberg, pp. 165-181. 10.1007/978-3-642-33941-7_17

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Abstract

This paper addresses the problem of designing a hierarchical single-allocation hub-median (SA-H-HM) network considering fuzzy flows between nodes. The problem is modeled as a fuzzy mathematical programming model and a hybrid algorithm of population-based iterated local search (PILS) and fuzzy simulation is employed. Results clearly show that PILS is efficient in reaching solutions with virtually all the errors less than one percent to the optimal solutions. Moreover, the proposed PILS is capable to escape local optima. Finally, the results of the hybrid algorithm give insights about the problem under uncertainty.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Mathematics
Subjects: Q Science > QA Mathematics
Publisher: Springer Berlin Heidelberg
ISBN: 9783642339400
Last Modified: 20 Jul 2017 04:03
URI: https://orca.cardiff.ac.uk/id/eprint/68530

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