The Second International Nurse Rostering Competition

Sara Ceschia, Nguyen Dang, Patrick De Causmaecker, Stefaan Haspeslagh, Andrea Schaerf

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


This paper reports on the Second International Nurse Rostering Competition (INRC-II). Its contributions are (1) a new problem formulation which, differently from INRC-I, is a multi-stage procedure, (2) a competition environment that, as in INRC-I, will continue to serve as a growing testbed for search approaches to the INRC-II problem, and (3) final results of the competition. We discuss also the competition environment, which is an infrastructure including problem and instance definitions, testbeds, validation/simulation tools and rules. The hardness of the competition instances has been evaluated through the behaviour of our own solvers, and confirmed by the solvers of the participants. Finally, we discuss general issues about both nurse rostering problems and optimisation competitions in general.
Original languageEnglish
Pages (from-to)171–186
Number of pages16
JournalAnnals of Operations Research
Publication statusPublished - 20 Mar 2018


  • Nurse rostering
  • Optimisation competition
  • Multi-stage optimisation


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