Variable and single neighbourhood diving for mip feasibility
Variable and single neighbourhood diving for mip feasibility
In this paper, we propose two new diving heuristics for finding a feasible solution for a mixed integer programming problem, called variable neighbourhood (VN) diving and single neighbourhood (SN) diving, respectively. They perform systematic hard variable fixing (i.e. diving) by exploiting the information obtained from a series of LP relaxations in order to generate a sequence of subproblems.