Comparison of the formulations for a hub-and-spoke network design problem under congestion

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Kian R., Kargar Mohammadi K.

COMPUTERS & INDUSTRIAL ENGINEERING, cilt.101, ss.504-512, 2016 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 101
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1016/j.cie.2016.09.019
  • Dergi Adı: COMPUTERS & INDUSTRIAL ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Social Sciences Citation Index (SSCI), Scopus
  • Sayfa Sayıları: ss.504-512
  • Anahtar Kelimeler: Hub-and-spoke networks, Nonlinear congestion cost, Conic quadratic programming, Valid inequalities, CONTROLLABLE PROCESSING TIMES, LOCATION PROBLEM, PERSPECTIVE, FACILITIES
  • TED Üniversitesi Adresli: Hayır

Özet

In this paper, we study the hub location problem with a power-law congestion cost and propose an exact solution approach. We formulate this problem in a conic quadratic form and use a strengthening method which rests on valid inequalities of perspective cuts in mixed integer nonlinear programming. In a numerical study, we compare two well known types of mathematical modeling in the hub-location problems which are solved with different branch and cut strategies. The strength and weakness of the formulations are summarized based on an extensive numerical study over the CAB data set. (C) 2016 Elsevier Ltd. All rights reserved.