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Welcome to the Asymmetric Multi-Depot Vehicle Routing Problem (A-MDVRP) wiki!
This wiki is an ongoing project that we try to update every now and then. If you miss anything or if something is unclear, then please help us to improve this wiki by contacting us: michieluithetbroek@gmail.com, a.h.schrotenboer@rug.nl.
The key components of the repository are the benchmark instances, the valid inequalities, the branch-and-bound, and the upper bound procedure. In short, our framework uses a branch-and-cut algorithm to provide lower bounds of the problem (implemented with CPLEX which focuses on improving the lower bound and not on finding new solutions) and uses an upper bound procedure (implemented with Gurobi) to find feasible solutions.
Uit het Broek, MAJ, AH Schrotenboer, B Jargalsaikhan, KJ Roodbergen, and LC Coelho (2021). Asymmetric multi-depot vehicle routing problems: valid inequalities and a branch-and-cut algorithm. Operations Research.
Our implementation is distributed under the MIT License, which more or less states that you can do with the code whatever you want (e.g., use it for your research) and that there is no warranty from our side of any kind as long as you mention our copyright.