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  1. 2022
  2. Published

    Newsvendor problems: An integrated method for estimation and optimisation

    Liu, C., Letchford, A. & Svetunkov, I., 16/07/2022, In: European Journal of Operational Research. 300, 2, p. 590-601 12 p.

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

  3. Published

    A Modelling Framework for Solving the Network-Wide Airport Slot Allocation Problem

    Keskin Ozel, M. & Zografos, K. G., 19/06/2022.

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

  4. Published

    A cut-and-branch algorithm for the quadratic knapsack problem

    Djeumou Fomeni, F., Kaparis, K. & Letchford, A., 31/05/2022, In: Discrete Optimization. 44, 2, 18 p., 100579.

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

  5. Published

    A Multi-Objective framework for investigating airport schedule efficiency, fairness, flexibility, and regularity trade-offs

    Kerama, T. & Zografos, K. G., 10/05/2022.

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

  6. Published

    The Boolean quadric polytope

    Letchford, A., 1/05/2022, The Quadratic Unconstrained Binary Optimization Problem: Theory, Algorithms, and Applications. Punnen, A. (ed.). Cham, Switzerland: Springer, p. 97-120 24 p.

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

  7. Published

    Generalised 2-circulant inequalities for the max-cut problem

    Kaparis, K., Letchford, A. & Mourtos, I., 31/03/2022, In: Operations Research Letters. 50, 2, p. 122-128 7 p.

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

  8. Published

    Metaheuristics “In the Large”

    Swan, J., Adriaensen, S., Brownlee, A. E. I., Hammond, K., Johnson, C. G., Kheiri, A., Krawiec, F., Merelo, J. J., Minku, L. L., Özcan, E., Pappa, G. L., García-Sánchez, P., Sörensen, K., Voß, S., Wagner, M. & White, D. R., 31/03/2022, In: European Journal of Operational Research. 297, 2, p. 393-406 14 p.

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

  9. Published

    Performance evaluation of scheduling policies for the Dynamic and Stochastic Resource-Constrained Multi-Project Scheduling Problem

    Satic, U., Jacko, P. & Kirkbride, C., 28/02/2022, In: International Journal of Production Research. 60, 4, p. 1411-1423 13 p.

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

  10. Published

    On matchings, T-joins and arc routing problems

    Boyacı, B., Dang, T. & Letchford, A., 31/01/2022, In: Networks. 79, 1, p. 20-31 12 p.

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

  11. Published

    Combinatorial Optimisation: Relaxation, Duality and Heuristics

    Mansoor, M. H., 2022, Lancaster University. 134 p.

    Research output: Thesis › Doctoral Thesis

  12. 2021
  13. Published

    Biperspective functions for mixed-integer fractional programs with indicator variables

    Letchford, A., Ni, Q. & Zhong, Z., 30/11/2021, In: Mathematical Programming. 190, 1-2, p. 39-55 17 p.

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

  14. Published

    Enhancing the performance of one-way electric carsharing systems through the optimum deployment of fast chargers

    Bekli, S., Boyacı, B. & Zografos, K. G., 31/10/2021, In: Transportation Research Part B: Methodological. 152, p. 118-139 22 p.

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

  15. Published

    Multi-Objective, Multi-Stakeholder Airport Slot Scheduling Considering Expected Delays

    Katsigiannis, F. A. & Zografos, K. G., 24/10/2021.

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

  16. Published

    Automatic generation of algorithms for robust optimisation problems using Grammar-Guided Genetic Programming

    Hughes, M., Goerigk, M. & Dokka, T., 30/09/2021, In: Computers and Operations Research. 133, 25 p., 105364.

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

  17. Published

    Operational Strategies for on-demand personal shopper services

    Arslan, A., Agatz, N. & Klapp, M. A., 30/09/2021, In: Transportation Research Part C: Emerging Technologies . 130, 17 p., 103320.

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

  18. Published

    A separation algorithm for the simple plant location problem

    Galli, L. & Letchford, A., 31/07/2021, In: Operations Research Letters. 49, 4, p. 610-615 6 p.

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

  19. Published

    On the complexity of surrogate and group relaxation for integer linear programs

    Dokka, T., Letchford, A. & Mansoor, H., 31/07/2021, In: Operations Research Letters. 49, 4, p. 530-534 5 p.

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

  20. Published

    Strengthened clique-family inequalities for the stable set polytope  

    Letchford, A. & Ventura, P., 31/07/2021, In: Operations Research Letters. 49, 4, p. 586-589 4 p.

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

  21. Published

    A Matheuristic Approach for Finding Effective Base Locations and Team Configurations for North West Air Ambulance

    Boyacı, B., Nayeem, M. A. & Kheiri, A., 8/07/2021, GECCO '21: Proceedings of the Genetic and Evolutionary Computation Conference Companion. Chicano, F. (ed.). New York: ACM, p. 1817-1824 8 p.

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

  22. Published

    A hyper-heuristic approach based upon a hidden Markov model for the multi-stage nurse rostering problem

    Kheiri, A., Gretsista, A., Keedwell, E., Lulli, G., Epitropakis, M. & Burke, E., 1/06/2021, In: Computers and Operations Research. 130, 14 p., 105221.

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

  23. Published

    A reinforcement learning hyper-heuristic for water distribution network optimisation

    Ahmed, A. O. M., Osman, S. M. Y., Yousif, T. E. H. & Kheiri, A., 17/05/2021, 2020 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE). IEEE, 4 p.

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

  24. Published

    Vehicle routing on road networks: how good is Euclidean approximation?

    Boyacı, B., Dang, T. & Letchford, A., 1/05/2021, In: Computers and Operations Research. 129, 13 p., 105197.

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

  25. Published

    Facets from gadgets

    Letchford, A. & Vu, A., 1/01/2021, In: Mathematical Programming. 185, 1-2, p. 297-314 18 p.

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

  26. 2020
  27. Published

    The stable set problem: clique and nodal inequalities revisited

    Letchford, A., Rossi, F. & Smriglio, S., 30/11/2020, In: Computers and Operations Research. 123, 16 p., 105024.

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

  28. Published

    Performance evaluation of scheduling policies for the DRCMPSP

    Satic, U., Jacko, P. & Kirkbride, C., 7/11/2020, Analytical and Stochastic Modelling Techniques and Applications: 25th International Conference, ASMTA 2019, Moscow, Russia, October 21–25, 2019, Proceedings. Cham: Springer, p. 100-114 15 p. (Lecture Notes in Computer Science ; vol. 12023).

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

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