Repairing MIP infeasibility through Local Branching

Finding a feasible solution to a generic Mixed-Integer Program (MIP) is often a very difficult task. Recently, two heuristic approaches called Local Branching and Feasibility Pump have been proposed to address this problem. In this paper we introduce and analyze computationally a hybrid method that uses the feasibility pump method to provide, at very low computational cost, an initial (possibly infeasible) solution to the local branching procedure.

By: Matteo Fischetti; Andrea Lodi

Published in: RC23532 in 2005


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