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Dionne M. Aleman

A Branch-and-Price Algorithm Enhanced by Decision Diagrams for the Kidney Exchange Problem

  • Dionne M. Aleman
  • Merve Bodur
  • Lizeth Carolina Riascos-Alvarez
    • Categories Integer Programming

    Kidney paired donation programs allow patients registered with an incompatible donor to receive a suitable kidney from another donor, as long as the latter’s co-registered patient, if any, also receives a kidney from a different donor. The kidney exchange problem (KEP) aims to find an optimal collection of kidney exchanges taking the form of cycles … Read more

    Logic-based Benders Decomposition and Binary Decision Diagram Based Approaches for Stochastic Distributed Operating Room Scheduling

  • Dionne M. Aleman
  • Merve Bodur
  • Cheng Guo
  • David R. Urbach
    • Categories Cutting Plane Approaches, Scheduling, Stochastic Programming

    The distributed operating room (OR) scheduling problem aims to find an assignment of surgeries to ORs across collaborating hospitals that share their waiting lists and ORs. We propose a stochastic extension of this problem where surgery durations are considered to be uncertain. In order to obtain solutions for the challenging stochastic model, we use sample … Read more