Pricing, relaxing and fixing under lot sizing and scheduling
New models are formulated for the CLSD with non-triangular sequence dependent setups. Based on the models we have developed an innovative matheuristic to solve the CSLD. We matheuristic merges column generation and MIP-based approaches. The matheuristic outperformed the previous solution approaches in the literature. The method is applicable to other lotsizing problems or even outside this domain.
lot sizing and scheduling column generation sequence-dependent setups non-triangular setups mip-based heuristics