Stochastic Optimization at IOR

Welcome to the Research Group of Professor Steffen Rebennack

The division of Stochastic Optimization belongs to the Institute of Operations Research.



Job Advertisements

  • HiWi jobs available
    We are seeking student assistants with the intend for a longer term appointment.
    Contact person: Marcel Sinske (marcel.sinske∂



  • OR 2021
    Together with Professor Russell McKenna and Professor Dominik Möst, Steffen Rebennack is organizing the stream “Energy and Environment” for the OR 2021 conference (Link: If you are interested in organizing a session, please contact Steffen Rebennack (steffen.rebennack∂
  • EURO 2021
    Steffen Rebennack is organizing the stream “Stochastic Optimization” for the EURO conference 2021. If you are interested in organizing a session, please contact Steffen Rebennack (steffen.rebennack∂

  • DFG Funding

    We thank the DFG for the support of the research project “COmPwise: Computing Optimal Piecewise Linear Functions and Their Applications".

  • EOSC Secretariat COVID-19
    We thank the „EOSC Secretariat“ for the support of the project "Optimal Spatiotemporal Antiviral Release under Uncertainty".

  • Invited Talk
    Steffen Rebennack was invited to give a talk at the virtual seminar series "Decision Making in an Uncertain World" in May 2010, organized by the Stochastic Programming Society.

  • EJOR in 95th percentile
    The new CiteScore 2019 has been released. The “European Journal of Operational Research” has a CiteScore of 8.5 and ranks #7 in the category “Management Science and Operations Research” out of 161 journals, behind “Journal of Operations Management” (#1 @ 11.4) and before “Management Science” (#14 @ 7.0) and “Operations Research” (#30 @ 4.9).

  • Top 10%

    The article "Two-Stage Stochastic Minimum s-t Cut Problems: Formulations, Complexity and Decomposition Algorithms", Networks 75:235–258, 2020 by Steffen Rebennack, Oleg A. Prokopyev and Bismark Singh is among the top 10% of the most downloaded paper in the 12 months following online publication.

  • GOR-Bachelorpreis 2019
    Hendrik Otto has been awarded the GOR-Bachelorpreis for 2019 for his bachelor thesis about the topic "Deterministic Upper Bounds for Equality and Inequality Constrained Problems in Global Minimization". The bachelor thesis was advised jointly by Peter Kirst and Christian Füllner.
  • Uncertainty Workshop 2019
    This research group organized the "Uncertainty Workshop 2019" on the 29th and 30th of August 2019 in St. Martin, Germany.
  • Honorable Mention
    Steffen Rebennack recieved together with Timo Lohmann an Honorable Mention at the ENRE Best Publication Award in Energy 2018 for the paper "Tailored Benders Decomposition for a Long-Term Power Expansion Model with Short-Term Demand Response", Management Science, 63(6):2027-2048, 2017.
  • IEEE Senior Member
    Steffen Rebennack has been elected an "IEEE Senior member" in May 2018.
  • Editor of EJOR
    Steffen Rebennack has been elected as one of six editors of the "European Journal of Operational Research" starting January 1st, 2018.
  • Invited Plenary Talk
    Steffen Rebennack gave the plenary "Strategic Bidding for a Price-Maker Hydroelectric Producer" at the international conference "ESCC 2017".