Chengliang Zhang

Robust Inventory Routing with Flexible Time Window Allocation

  • Myun-Seok Cheon
  • George L. Nemhauser
  • Dimitri J. Papageorgiou
  • Joel Sokol
  • Chengliang Zhang
    • Categories Transportation Tags , , , ,

    This paper studies a robust maritime inventory routing problem with time windows and stochastic travel times. One of the novelties of the problem is that the length and placement of the time windows are also decision variables. Such problems arise in the design and negotiation of long-term delivery contracts with customers who require on-time deliveries … Read more

    Flexible Solutions to Maritime Inventory Routing Problems with Delivery Time Windows

  • Myun-Seok Cheon
  • Ahmet Keha
  • George L. Nemhauser
  • Joel Sokol
  • Chengliang Zhang
    • Categories Robust Optimization Tags , , ,

    This paper studies a Maritime Inventory Routing Problem with Time Windows (MIRPTW) for deliveries with uncertain disruptions. We consider disruptions that increase travel times between ports and ultimately affect the deliveries in one or more time windows. The objective is to find flexible solutions that can withstand unplanned disruptions. We propose a Lagrangian heuristic algorithm … Read more