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A generic approach to conference scheduling with integer programming

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  • Pylyavskyy, Yaroslav
  • Jacko, Peter
  • Kheiri, Ahmed

Abstract

Conferences are a key aspect of communicating knowledge, and their schedule plays a vital role in meeting the expectations of participants. Given that many conferences have different constraints and objectives, different mathematical models and heuristic methods have been designed to address rather specific requirements of the conferences being studied per se. We present a penalty system that allows organisers to set up scheduling preferences for tracks and submissions regarding sessions and rooms, and regarding the utilisation of rooms within sessions. In addition, we also consider hybrid and online conferences where submissions need to be scheduled in appropriate sessions based on timezone information. A generic scheduling tool is presented that schedules tracks into sessions and rooms, and submissions into sessions by minimising the penalties subject to certain hard constraints. Two integer programming models are presented: an exact model and an extended model. Both models were tested on five real instances and on two artificial instances which required the scheduling of several hundreds of time slots. The results showed that the exact model achieved optimal solutions for all instances except for one instance which resulted in 0.001% optimality gap, and the extended model handles more complex and additional constraints for some instances. Overall, this work demonstrates the suitability of the proposed generic approach to optimise schedules for in-person, hybrid, and online conferences.

Suggested Citation

  • Pylyavskyy, Yaroslav & Jacko, Peter & Kheiri, Ahmed, 2024. "A generic approach to conference scheduling with integer programming," European Journal of Operational Research, Elsevier, vol. 317(2), pages 487-499.
    • Handle: RePEc:eee:ejores:v:317:y:2024:i:2:p:487-499
    DOI: 10.1016/j.ejor.2024.04.001
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    References listed on IDEAS

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    1. Potthoff, Richard F & Munger, Michael C, 2003. "Use of Integer Programming to Optimize the Scheduling of Panels at Annual Meetings of the Public Choice Society," Public Choice, Springer, vol. 117(1-2), pages 163-175, October.
    2. Stidsen, Thomas & Pisinger, David & Vigo, Daniele, 2018. "Scheduling EURO-k conferences," European Journal of Operational Research, Elsevier, vol. 270(3), pages 1138-1147.
    3. Richard Potthoff & Steven Brams, 2007. "Scheduling of panels by integer programming: Results for the 2005 and 2006 New Orleans meetings," Public Choice, Springer, vol. 131(3), pages 465-468, June.
    4. M G Nicholls, 2007. "A small-to-medium-sized conference scheduling heuristic incorporating presenter and limited attendee preferences," Journal of the Operational Research Society, Palgrave Macmillan;The OR Society, vol. 58(3), pages 301-308, March.
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