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  1. 2025
  2. Forthcoming

    On a hierarchy of polytopes for integer quadratic programming

    Galli, L. & Letchford, A., 8/05/2025, (Accepted/In press) Mathematics, Algorithms and the Art and Science of Decision-Making. Barbato, M., Bianchessi, N. & Boggio Tomasaz, A. (eds.). Springer

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Chapter (peer-reviewed) › peer-review

  3. Forthcoming

    Choice-Driven Multi-Period Network Design for Advanced Air Mobility

    Jiang, Y., Zhou, X., Lulli, G., Zhong, S. & Jiang, Y., 23/03/2025, (Accepted/In press).

    Research output: Contribution to conference - Without ISBN/ISSN › Abstract › peer-review

  4. Forthcoming

    Strengthening the Conic Quadratic Relaxation of the Optimal Transmission Switching Problem

    Li, L. & Lulli, G., 23/03/2025, (Accepted/In press).

    Research output: Contribution to conference - Without ISBN/ISSN › Conference paper

  5. Published

    New facets of the clique partitioning polytope

    Letchford, A. & Soerensen, M., 6/03/2025, In: Operations Research Letters. 59, 4 p., 107242.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  6. Forthcoming

    On the value of holistic decision-making and contracted logistics procurement in complex supply chains

    Lyu, J., Arslan, A. & Lulli, G., 24/02/2025, (Accepted/In press).

    Research output: Contribution to conference - Without ISBN/ISSN › Abstract › peer-review

  7. 2024
  8. Published

    On a variant of the change-making problem

    Letchford, A. & Cheng, L., 30/11/2024, In: Operations Research Letters. 57, 3 p., 107165.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  9. Published

    An Optimization Framework for One-way Carsharing Systems with User Acceptance Probabilities

    Bekli, R., Boyacı, B. & Zografos, K. G., 2/09/2024. 4 p.

    Research output: Contribution to conference - Without ISBN/ISSN › Abstract › peer-review

  10. Published

    A generic approach to conference scheduling with integer programming

    Pylyavskyy, Y., Jacko, P. & Kheiri, A., 1/09/2024, In: European Journal of Operational Research. 317, 2, p. 487-499 13 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  11. Published

    A simulation-based approximate dynamic programming approach to dynamic and stochastic resource-constrained multi-project scheduling problem

    Satic, U., Jacko, P. & Kirkbride, C., 1/06/2024, In: European Journal of Operational Research. 315, 2, p. 454-469 16 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  12. Published

    On upper bounds for the multiple knapsack assignment problem

    Galli, L. & Letchford, A., 1/05/2024, In: Operations Research Letters. 54, 6 p., 107104.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  13. Forthcoming

    An analysis of trajectory centered ATFM with airspace users’ preference scores

    Jiang, Y., De Giovanni, L., Lancia, C. & Lulli, G., 6/04/2024, (Accepted/In press). 8 p.

    Research output: Contribution to conference - Without ISBN/ISSN › Conference paper › peer-review

  14. Published

    CP-Lib: Benchmark instances of the clique partitioning problem

    Sorensen, M. & Letchford, A., 1/03/2024, In: Mathematical Programming Computation. 16, 1, p. 93-111 19 p., 1.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  15. Published

    Operational research: methods and applications

    Petropoulos, F., Laporte, G., Archetti, C., Ayhan, H., Battarra, M., Bennell, J. A., Boylan, J. E., Breton, M., Canca, D., Charlin, L., Chen, B., Cicek, C. T., Jr, L. A. C., Currie, C. S. M., Demeulemeester, E., Ding, L., Disney, S. M., Ehrgott, M., Eppler, M. J. & Erdoğan, G. & 59 others, Fortz, B., Franco, L. A., Frische, J., Greco, S., Gregory, A. J., Hämäläinen, R. P., Herroelen, W., Hewitt, M., Holmström, J., Hooker, J. N., Işık, T., Johnes, J., Kara, B. Y., Karsu, Ö., Kent, K., Köhler, C., Kunc, M., Kuo, Y.-H., Lienert, J., Letchford, A. N., Leung, J., Li, D., Li, H., Ljubić, I., Lodi, A., Lozano, S., Lurkin, V., Martello, S., McHale, I. G., Midgley, G., Morecroft, J. D. W., Mutha, A., Oğuz, C., Petrovic, S., Pferschy, U., Psaraftis, H. N., Rose, S., Saarinen, L., Salhi, S., Song, J.-S., Sotiros, D., Stecke, K. E., Strauss, A. K., Tarhan, İ., Thielen, C., Toth, P., Berghe, G. V., Vasilakis, C., Vaze, V., Vigo, D., Virtanen, K., Wang, X., Weron, R., White, L., Woensel, T. V., Yearworth, M., Yıldırım, E. A., Zaccour, G. & Zhao, X., 1/03/2024, In: Journal of the Operational Research Society. 75, 3, p. 423-617 195 p.

    Research output: Contribution to Journal/Magazine › Review article › peer-review

  16. Published

    Arc routing problems

    Eglese, R. & Letchford, A., 10/02/2024, Encyclopedia of Optimization. Pardalos, P. & Prokopyev, O. (eds.). 3rd ed. Cham: Springer, 6 p.

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Entry for encyclopedia/dictionary

  17. 2023
  18. Published

    Matheuristics: survey and synthesis

    Boschetti, M., Letchford, A. & Maniezzo, V., 30/11/2023, In: International Transactions in Operational Research. 30, 6, p. 2840-2866 27 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  19. Published

    On cut polytopes and graph minors

    Kaparis, K., Letchford, A. & Mourtos, I., 30/11/2023, In: Discrete Optimization. 50, 100807.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  20. Published

    On some lower bounds for the permutation flowshop problem

    Letchford, A., Dang, T. & Caceres Gelvez, S., 30/11/2023, In: Computers and Operations Research. 159, 9 p., 106320.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  21. Published

    A survey on exact algorithms for the maximum flow and minimum-cost flow problems

    Cruz Mejía, O. & Letchford, A., 30/09/2023, In: Networks. 82, 2, p. 167-176 10 p.

    Research output: Contribution to Journal/Magazine › Review article › peer-review

  22. Published

    The algorithm selection problem for solving Sudoku with metaheuristics

    Notice, D., Kheiri, A. & Pavlidis, N., 3/07/2023.

    Research output: Contribution to conference - Without ISBN/ISSN › Conference paper › peer-review

  23. Published

    Multi-level bottleneck assignment problems: Complexity and sparsity-exploiting formulations

    Dokka, T. & Goerigk, M., 30/06/2023, In: Computers and Operations Research. 154, 12 p., 106213.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  24. Published

    Application of selection hyper-heuristics to the simultaneous optimisation of turbines and cabling within an offshore windfarm

    Butterwick, T., Kheiri, A., Lulli, G., Gromicho, J. & Kreeft, J., 31/05/2023, In: Renewable Energy. 208, p. 1-16 16 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  25. Published

    Handling User-based Relocations in One-way Carsharing Systems Considering User Acceptance Rates

    Boyacı, B., Bekli, S. & Zografos, K. G., 28/04/2023.

    Research output: Contribution to conference - Without ISBN/ISSN › Abstract › peer-review

  26. Published

    On upper bounds for the multiple knapsack assignment problem

    Letchford, A., 04/2023.

    Research output: Contribution to conference - Without ISBN/ISSN › Conference paper › peer-review

  27. Forthcoming

    MIP Formulations of Piece-wise Polyhedral Relaxations of AC Power Flow Equations

    Li, L., Dokka, T. & Lulli, G., 23/02/2023, (Accepted/In press) 2023 IEEE PES General Meeting. IEEE, p. 1-5 5 p.

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review

  28. Forthcoming

    Solving Optimal Transmission Switching Problem via DC Power Flow Approximation

    Li, L., Dokka Venkata Satyanaraya, T. & Lulli, G., 23/02/2023, (Accepted/In press) 2023 IEEE PES General Meeting. IEEE, p. 1-5 5 p.

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review

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