In this paper we propose a heuristic for solving the problem of resource constrained preemptive scheduling in the two … minimization of makespan. The problem is NP-hard. The heuristic first sequences jobs on the machine at stage 1 and then solves the … sharing of the resources between the stages is taken into account is also derived. The performance of the heuristic evaluated …

heuristic finds optimal solutions for all test problems that can be solved exactly by a branch-and-cut algorithm, while running … exactly, the tabu search algorithm outperforms the best local search heuristic currently available. The performance gap …

black and W white vertices, such that there is no edge between a black and a white vertex. We suggest a heuristic, based on …

vehicle. In this paper, we propose to compare the performance of five different heuristic approaches for this problem, namely …, a heuristic \mip solver, a Lagrangian heuristic, a column generation heuristic, a large neighborhood search heuristic … using column generation for neighborhood evaluation, and a tabu search heuristic. The first three methods are adaptations of …