Variable neighborhood search for the degree-constrained minimum spanning tree problem
Discrete Applied Mathematics - Special issue: Third ALIO-EURO meeting on applied combinatorial optimization
Variable Neighborhood Decomposition Search
Journal of Heuristics
Production Planning by Mixed Integer Programming (Springer Series in Operations Research and Financial Engineering)
Computers and Operations Research
The double traveling salesman problem with multiple stacks: A variable neighborhood search approach
Computers and Operations Research
Variable neighbourhood decomposition search for 0-1 mixed integer programs
Computers and Operations Research
Computers and Operations Research
Computers and Operations Research
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In this paper a new heuristic is proposed to solve general multi-level lot-sizing and scheduling problems. The idea is to cross-fertilize the principles of the meta-heuristic Variable Neighborhood Decomposition Search (VNDS) with those of the MIP-based Fix&Optimize heuristic. This combination will make it possible to solve the kind of problems that typically arise in the consumer goods industry due to sequence-dependent setups and shifting bottlenecks. In order to demonstrate the strength of this procedure, a GLSP variant for multiple production stages is chosen as a representative. With the help of artificial and real-world instances, the quality of the solution as well as the computational performance of the new procedure is tested and compared to a standard MIP-solver.