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Strong multi-commodity flow formulations for the asymmetric traveling salesman problem

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  • Balma, Ali
  • Salem, Safa Ben
  • Mrad, Mehdi
  • Ladhari, Talel

Abstract

We provide new compact formulations of polynomial size for the asymmetric traveling salesman problem obtained through the Reformulation-Linearization Technique. The first one is obtained directly by this latter approach while the two others are derived by performing projections of this formulation on the variables of the existing models. We show that the devised formulations are stronger than the state-of-the-art models. Computational experiments conducted on benchmark instances for the classical variant and with precedence constraints confirm the better quality of the relaxations provided by our proposed formulations.

Suggested Citation

  • Balma, Ali & Salem, Safa Ben & Mrad, Mehdi & Ladhari, Talel, 2018. "Strong multi-commodity flow formulations for the asymmetric traveling salesman problem," European Journal of Operational Research, Elsevier, vol. 271(1), pages 72-79.
  • Handle: RePEc:eee:ejores:v:271:y:2018:i:1:p:72-79
    DOI: 10.1016/j.ejor.2018.05.021
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    References listed on IDEAS

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    1. Hanif D. Sherali & Patrick J. Driscoll, 2002. "On Tightening the Relaxations of Miller-Tucker-Zemlin Formulations for Asymmetric Traveling Salesman Problems," Operations Research, INFORMS, vol. 50(4), pages 656-669, August.
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    4. Bektaş, Tolga & Gouveia, Luis, 2014. "Requiem for the Miller–Tucker–Zemlin subtour elimination constraints?," European Journal of Operational Research, Elsevier, vol. 236(3), pages 820-832.
    5. Gouveia, Luis & Pires, Jose Manuel, 1999. "The asymmetric travelling salesman problem and a reformulation of the Miller-Tucker-Zemlin constraints," European Journal of Operational Research, Elsevier, vol. 112(1), pages 134-146, January.
    6. Burger, M. & Su, Z. & De Schutter, B., 2018. "A node current-based 2-index formulation for the fixed-destination multi-depot travelling salesman problem," European Journal of Operational Research, Elsevier, vol. 265(2), pages 463-477.
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    Cited by:

    1. He, Xuan & Pan, Quan-Ke & Gao, Liang & Neufeld, Janis S., 2023. "An asymmetric traveling salesman problem based matheuristic algorithm for flowshop group scheduling problem," European Journal of Operational Research, Elsevier, vol. 310(2), pages 597-610.
    2. Khodakaram Salimifard & Sara Bigharaz, 2022. "The multicommodity network flow problem: state of the art classification, applications, and solution methods," Operational Research, Springer, vol. 22(1), pages 1-47, March.

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