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DOI: 10.4230/LIPIcs.CP.2026.34

CrewAId: Interactive Optimisation for Human-In-The-Loop Crew Rostering and Rerostering

Authors: Matthias Klapperstueck, Frits de Nijs, Ilankaikone Senthooran, Matteo Miceli, and Michael Wybrow

Published in: LIPIcs, Volume 379, 32nd International Conference on Principles and Practice of Constraint Programming (CP 2026)

Abstract

Constraint programming technology allows optimisation experts to solve a broad category of personnel rostering problems, such as nurse rostering, airline crew rostering or retail worker scheduling. However, for problem domain experts to use this technology, the optimisation system must bridge the gap for users to easily explore solutions and influence constraints. Working with our energy industry partner for several years, we identified rostering problems involving multi-skilled shift workers present on site for extended periods. Their existing workflow for handling rostering (crew allocation), and rerostering (dealing with inevitable employee absences) and for time-limited formation of dedicated maintenance crews is labour intensive and complex, requiring in-depth knowledge of personnel files and skill competencies. To address this, we propose an interactive decision support system for crew rostering and rerostering, currently being deployed by our industry partner, that provides interactive tools for domain experts to perform exploration, validation, and conflict recovery.

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Matthias Klapperstueck, Frits de Nijs, Ilankaikone Senthooran, Matteo Miceli, and Michael Wybrow. CrewAId: Interactive Optimisation for Human-In-The-Loop Crew Rostering and Rerostering. In 32nd International Conference on Principles and Practice of Constraint Programming (CP 2026). Leibniz International Proceedings in Informatics (LIPIcs), Volume 379, pp. 34:1-34:23, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2026)

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@InProceedings{klapperstueck_et_al:LIPIcs.CP.2026.34,
  author =	{Klapperstueck, Matthias and de Nijs, Frits and Senthooran, Ilankaikone and Miceli, Matteo and Wybrow, Michael},
  title =	{{CrewAId: Interactive Optimisation for Human-In-The-Loop Crew Rostering and Rerostering}},
  booktitle =	{32nd International Conference on Principles and Practice of Constraint Programming (CP 2026)},
  pages =	{34:1--34:23},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-432-1},
  ISSN =	{1868-8969},
  year =	{2026},
  volume =	{379},
  editor =	{Beldiceanu, Nicolas},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.CP.2026.34},
  URN =		{urn:nbn:de:0030-drops-266666},
  doi =		{10.4230/LIPIcs.CP.2026.34},
  annote =	{Keywords: Crew Rostering, Rerostering, Constraint Programming, Human-Centric Optimisation}
}

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CrewAId: Interactive Optimisation for Human-In-The-Loop Crew Rostering and Rerostering

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