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Solving the single and multiple asymmetric Traveling Salesmen Problems by generating subtour elimination constraints from integer solutions

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  • Maichel M. Aguayo
  • Subhash C. Sarin
  • Hanif D. Sherali

Abstract

We present an algorithm to solve single and multiple asymmetric traveling salesmen problems (ATSP and mATSP) by generating violated subtour elimination constraints from specific integer solutions. Computational results for the ATSP reveal that the proposed approach is able to solve 29 out of 33 well-known instances taken from the literature (involving between 100 and 1001 cities) to optimality within an hour of CPU time. Furthermore, the proposed approach is demonstrated to outperform any of the most effective state-of-the-art exact algorithms available in the literature when applied to solve the given ATSP instances via their equivalently transformed symmetric TSP representations. For the mATSP, the proposed approach is able to solve 27 out of 36 instances derived from the ATSP library involving up to 1001 cities to optimality within an hour of CPU time and also outperforms the direct solution by CPLEX, one of the three most effective formulations reported in the literature for this class of problems. The proposed approach is easy to implement and can be used to solve ATSP and mATSP as stand-alone models or can be applied in contexts where they appear as sub-models within some application settings.

Suggested Citation

  • Maichel M. Aguayo & Subhash C. Sarin & Hanif D. Sherali, 2018. "Solving the single and multiple asymmetric Traveling Salesmen Problems by generating subtour elimination constraints from integer solutions," IISE Transactions, Taylor & Francis Journals, vol. 50(1), pages 45-53, January.
    • Handle: RePEc:taf:uiiexx:v:50:y:2018:i:1:p:45-53
    DOI: 10.1080/24725854.2017.1374580
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    Cited by:

    1. Cui, Weiwei & Yang, Yiran & Di, Lei, 2023. "Modeling and optimization for static-dynamic routing of a vehicle with additive manufacturing equipment," International Journal of Production Economics, Elsevier, vol. 257(C).
    2. Aguayo, Maichel M. & Fierro, Pablo E. & De la Fuente, Rodrigo A. & Sepúlveda, Ignacio A. & Figueroa, Dante M., 2021. "A mixed-integer programming methodology to design tidal current farms integrating both cost and benefits: A case study in the Chacao Channel, Chile," Applied Energy, Elsevier, vol. 294(C).
    3. AERTS, Babiche & CORNELISSENS, Trijntje & SÖRENSEN, Kenneth, 2022. "The internal warehouse replenishment problem: the importance of storage and replenishment policies," Working Papers 2022007, University of Antwerp, Faculty of Business and Economics.
    4. José Alejandro Cornejo-Acosta & Jesús García-Díaz & Julio César Pérez-Sansalvador & Carlos Segura, 2023. "Compact Integer Programs for Depot-Free Multiple Traveling Salesperson Problems," Mathematics, MDPI, vol. 11(13), pages 1-25, July.

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