In this paper, we consider a network design problem with hub-and-spoke structure. We propose a relaxation technique for the problem where the location of hub nodes is given and decides the allocation of non-hub nodes to one of the hub nodes. We linearize the non-convex quadratic objective function of the original problem, introducing Hitchcock transportation problems defined for each pair of non-hub nodes. We provide two linear relaxation problems, one based on the Hitchcock transportation problems and the other on the dual Hitchcock transportation problems. We show the tightness of the lower bounds obtained by our formulations by computational experiences.
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Hiro-o SAITO, Shiro MATUURA, Tomomi MATSUI, "A Linear Relaxation for Hub Network Design Problems" in IEICE TRANSACTIONS on Fundamentals,
vol. E85-A, no. 5, pp. 1000-1005, May 2002, doi: .
Abstract: In this paper, we consider a network design problem with hub-and-spoke structure. We propose a relaxation technique for the problem where the location of hub nodes is given and decides the allocation of non-hub nodes to one of the hub nodes. We linearize the non-convex quadratic objective function of the original problem, introducing Hitchcock transportation problems defined for each pair of non-hub nodes. We provide two linear relaxation problems, one based on the Hitchcock transportation problems and the other on the dual Hitchcock transportation problems. We show the tightness of the lower bounds obtained by our formulations by computational experiences.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e85-a_5_1000/_p
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@ARTICLE{e85-a_5_1000,
author={Hiro-o SAITO, Shiro MATUURA, Tomomi MATSUI, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={A Linear Relaxation for Hub Network Design Problems},
year={2002},
volume={E85-A},
number={5},
pages={1000-1005},
abstract={In this paper, we consider a network design problem with hub-and-spoke structure. We propose a relaxation technique for the problem where the location of hub nodes is given and decides the allocation of non-hub nodes to one of the hub nodes. We linearize the non-convex quadratic objective function of the original problem, introducing Hitchcock transportation problems defined for each pair of non-hub nodes. We provide two linear relaxation problems, one based on the Hitchcock transportation problems and the other on the dual Hitchcock transportation problems. We show the tightness of the lower bounds obtained by our formulations by computational experiences.},
keywords={},
doi={},
ISSN={},
month={May},}
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TY - JOUR
TI - A Linear Relaxation for Hub Network Design Problems
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1000
EP - 1005
AU - Hiro-o SAITO
AU - Shiro MATUURA
AU - Tomomi MATSUI
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E85-A
IS - 5
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - May 2002
AB - In this paper, we consider a network design problem with hub-and-spoke structure. We propose a relaxation technique for the problem where the location of hub nodes is given and decides the allocation of non-hub nodes to one of the hub nodes. We linearize the non-convex quadratic objective function of the original problem, introducing Hitchcock transportation problems defined for each pair of non-hub nodes. We provide two linear relaxation problems, one based on the Hitchcock transportation problems and the other on the dual Hitchcock transportation problems. We show the tightness of the lower bounds obtained by our formulations by computational experiences.
ER -