Alfredo Marín

upgrading the network in discrete location problems with customers satisfaction

  • Inmaculada Espejo
  • Alfredo Marín
    • Categories (Mixed) Integer Linear Programming, Integer Programming Tags , , , , , ,

    Generally speaking, in a discrete location problem the decision maker chooses a set of facilities among a finite set of possibilities and decides to which facility each customer will be allocated in order to minimize the allocation cost. However, it is natural to consider the more realistic situation in which customers have their own criterion … Read more

    Solving the uncapacitated multiple allocation hub location problem by means of a dual-ascent technique

  • Lázaro Cánovas
  • Sergio García
  • Alfredo Marín
    • Categories Combinatorial Optimization, Transportation

    This problem deals with the uncapacitated multiple allocation hub location problem. The dual problem of a four-indexed formulation is considered and a heuristic method, based on a dual-ascent technique, is designed. This heuristic, which is reinforced with several specifical subroutines and does not require any external linear problem solver, is the core tool embedded in … Read more