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Integer programming techniques for the nurse rostering problem

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Abstract

This work presents integer programming techniques to tackle the problem of the International Nurse Rostering Competition. Starting from a compact and monolithic formulation in which the current generation of solvers performs poorly, improved cut generation strategies and primal heuristics are proposed and evaluated. A large number of computational experiments with these techniques produced the following results: the optimality of the vast majority of instances was proved, the best known solutions were improved by up to 15 % and strong dual bounds were obtained. In the spirit of reproducible science, all code was implemented using the Computational Infrastructure for Operations Research.

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Notes

  1. https://www.kuleuven-kulak.be/nrpcompetition/competitor-ranking.

  2. a clique with three nodes.

  3. http://www.kuleuven-kulak.be/nrpcompetition.

  4. http://www.goal.ufop.br/nrp.

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Acknowledgments

The authors would like to thank FAPEMIG (Grants APQ-01779-10) and CNPq (Grant 480388/2010-5) for supporting the development of this research and the anonymous reviewers of this paper for the detailed suggestions and corrections

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Correspondence to Túlio A. M. Toffolo.

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Santos, H.G., Toffolo, T.A.M., Gomes, R.A.M. et al. Integer programming techniques for the nurse rostering problem. Ann Oper Res 239, 225–251 (2016). https://doi.org/10.1007/s10479-014-1594-6

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