Banu Soylu

The uncapacitated p-hub center problem under the existence of zero flows

  • Enver Engür
  • Banu Soylu
    • Categories Network Optimization, Transportation Tags , , ,

    In this study, we consider the special case of the uncapacitated p-hub center problem, where the weight/flow matrix includes 0 entities. In some real life networks, such as airline networks, cargo networks etc., the zero flow might exist between certain demand points. Typically in airline networks, nobody travels from city i to city i. In … Read more

    A branch-and-bound algorithm for biobjective mixed-integer programs

  • Pietro Belotti
  • Banu Soylu
  • Margaret Wiecek
    • Categories (Mixed) Integer Linear Programming, Multi-Criteria Optimization Tags , , ,

    We propose a branch-and-bound (BB) algorithm for biobjective mixed-integer linear programs (BOMILPs). Our approach makes no assumption on the type of problem and we prove that it returns all Pareto points of a BOMILP. We discuss two techniques upon which the BB is based: fathoming rules to eliminate those subproblems that are guaranteed not to … Read more