Dr. rer. nat. Helmut Sedding

Work at ZHAW

Position

Senior Research Associate in Operations Research and Operations Management

Focus

Combinatorial optimization algorithms, in particular in scheduling

Education and Continuing education

Education

• Dr. rer. nat. (PhD) / Computer Science
  ÷
  02 / 2019 - 02 / 2019
• Diplom (M.Sc.) / Computer Science
  ÷
  2010 - 2010

Network

Awards

• IISE Transactions Award 2021
  The Institute of Industrial and Systems Engineers (IISE)
  04 / 2022
• IWA Prize 2016
  Initiative of Science and Automotive Industry (IWA)
  04 / 2016

Recommendations

Conference "AI-driven Decision Intelligence: Shaping Operations for Efficiency and Sustainability", June 26, 2024.

Projects

• Calculation of an optimized freight configuration for aircraft / Project leader / Project ongoing
• Customizable Injection Molded Products and Services with Interconnected Production Planning / Project leader / Project ongoing
• The Fourth International Workshop on Dynamic Scheduling Problems / Project leader / Project completed
• Systematization of production processes for automatized scheduling in industrial SMEs / Project leader / Project completed
• Self-Regulated Corrective Actions on GFRP Production Process / Team member / Project completed
• Adaptive Production Planning Systems for Fast Decision Support / Deputy project leader / Project completed

Publications

• Sedding, Helmut A.,

  2023.

  Mixed-model moving assembly line material placement optimization for a shorter time-dependent worker walking time.

  Journal of Scheduling.

  Available from: https://doi.org/10.1007/s10951-023-00787-5

• Sedding, Helmut A.,

  2020.

  Scheduling jobs with a V-shaped time-dependent processing time.

  Journal of Scheduling.

  23(6), pp. 751-768.

  Available from: https://doi.org/10.1007/s10951-020-00665-4

• Sedding, Helmut A.,

  2020.

  Line side placement for shorter assembly line worker paths.

  IISE Transactions.

  52(2), pp. 181-198.

  Available from: https://doi.org/10.1080/24725854.2018.1508929

• Jaehn, Florian; Sedding, Helmut,

  2016.

  Scheduling with time-dependent discrepancy times.

  Journal of Scheduling.

  19(6), pp. 737-757.

  Available from: https://doi.org/10.1007/s10951-016-0472-2

• Sedding, Helmut A.,

  2020.

  Time-dependent path scheduling : algorithmic minimization of walking time at the moving assembly line.

  Wiesbaden:

  Springer.

  ISBN 978-3-658-28414-5.

  Available from: https://doi.org/10.1007/978-3-658-28415-2

• Halman, Nir; Sedding, Helmut A.,

  2024.

  A faster FPTAS for makespan minimization with time-dependent agreeable V-shaped processing times [paper].

  In:

  Proceedings of the 19th International Workshop on Project Management and Scheduling.

  19th International Workshop on Project Management and Scheduling (PMS), Bern, Switzerland, 2-5 April 2024.

  University of Bern.

  Available from: https://doi.org/10.21256/zhaw-30440

• Sedding, Helmut; Seidel, Maxim,

  2023.

  Lot sizing and scheduling of injection molding machines with setup resources and demand uncertainty [paper].

  In:

  IWDSP 2023 : The Fourth International Workshop on Dynamic Scheduling Problems, Winterthur, Switzerland, 5-6 June 2023.

• Sedding, Helmut,

  2021.

  A lower bound for sequentially placing boxes at the moving assembly line to minimize walking time [paper].

  In:

  IWDSP 2021 : The Third International Workshop on Dynamic Scheduling Problems, Poznań, Poland, 5-7 July 2021.

• Sedding, Helmut,

  2021.

  An FPTAS for scheduling with piecewise-linear nonmonotonic convex time-dependent processing times and job-specific agreeable slopes [paper].

  In:

  Proceedings of the 17th International Workshop on Project Management and Scheduling.

  17th International Workshop on Project Management and Scheduling, Toulouse, 21-23 April 2021.

  EURO Working Group on Project Management and Scheduling.

  Available from: https://doi.org/10.21256/zhaw-22418

• Sedding, Helmut,

  2019.

  Scheduling with asymmetric piecewise-linear time-dependent processing times [paper].

  In:

  Proceedings of the 14th Workshop on Models and Algorithms for Planning and Scheduling Problems, MAPSP 2019.

  MAPSP 2019, Renesse, The Netherlands, 2-7 June 2019.

  Maastricht University.

  pp. 43-45.

• Sedding, Helmut,

  2021.

  IISE Transaction Award für Artikel zur algorithmischen Laufwege-Optimierung am Fliessband.

  ZHAW Industrie 4.0.

  Available from: https://blog.zhaw.ch/industrie4null/2021/06/01/iise-transaction-award-fuer-artikel-zur-algorithmischen-laufwege-optimierung-am-fliessband/

• Herrmann, Thomas; Sedding, Helmut,

  2019.

  Industrie 4.0 von morgen diskutiert.

  Technische Rundschau.

  111(10), pp. 74-75.

• Herrmann, Thomas; Sedding, Helmut,

  2019.

  Die Produktion von morgen.

  ZHAW Industrie 4.0.

  Available from: https://blog.zhaw.ch/industrie4null/2019/09/18/die-produktion-von-morgen/

• Sedding, Helmut,

  2019.

  Das digitale Produktions-Puzzle.

  Technische Rundschau.

  111(7), pp. 54-55.

  Available from: https://www.technische-rundschau.ch/archiv/2019/07/das-digitale-produktions-puzzle/

• Sedding, Helmut,

  2022.

  Scheduling with time-dependent processing time functions of V-shaped linear pieces.

  In:

  18th Swiss Operations Research Days (Swiss OR Days 2022), Winterthur, Switzerland, 2-3 June 2022.

• Sedding, Helmut,

  2021.

  Line side placement for shorter assembly line worker paths.

  In:

  IISE Annual Virtual Conference & Expo 2021, 23-25 May 2021.

Publications before appointment at the ZHAW

• Diese Einträge können nicht mehr überarbeitet werden.   Scheduling non-monotonous convex piecewise-linear time-dependent processing times, Proceedings of the 2nd International Workshop on Dynamic Scheduling Problems, 79–84, 2018.
• On the complexity of scheduling start time dependent asymmetric convex processing times, Proceedings of the 16th International Conference on Project Management and Scheduling, 209–212, 2018.
• Scheduling of Time-Dependent Asymmetric Nonmonotonic Processing Times permits an FPTAS, Proceedings of the 15th Cologne-Twente Workshop on Graphs & Combinatorial Optimization, 135–138, 2017.
• Box Placement as Time Dependent Scheduling To Reduce Automotive Assembly Line Worker Walk Times, Proceedings of the 13th Workshop on Models and Algorithms for Planning and Scheduling Problems, 92–94, 2017.
• Single Machine Scheduling with Nonmonotonic Piecewise Linear Time Dependent Processing Times, with F. Jaehn, Proceedings of the 14th International Conference on Project Management and Scheduling 2014, 222–225, 2014.

go back