• A MIP based local search heuristic for a stochastic maritime inventory routing problem 

      Agra, Agostinho; Christiansen, Marielle; Hvattum, Lars Magnus; Rodrigues, Filipe (Lecture Notes in Computer Science (LNCS);9855, Chapter, 2016)
      We consider a single product maritime inventory routing problem in which the production and consumption rates are constant over the planning horizon. The problem involves a heterogeneous fleet of ships and multiple production ...
    • Robust optimization for a maritime inventory routing problem 

      Agra, Agostinho; Christiansen, Marielle; Hvattum, Lars Magnus; Rodrigues, Filipe (Peer reviewed; Journal article, 2018)
      We consider a single product maritime inventory routing problem in which the production and consumption rates are constant over the planning horizon. The problem involves a heterogeneous fleet and multiple production and ...
    • Weighted proximity search 

      Rodrigues, Filipe; Agra, Agostinho; Hvattum, Lars Magnus; Requejo, Cristina (Peer reviewed; Journal article, 2021)
      Proximity search is an iterative method to solve complex mathematical programming problems. At each iteration, the objective function of the problem at hand is replaced by the Hamming distance function to a given solution, ...