We address a multi-item capacitated lot-sizing problem with setup times that arises in real-world production planning contexts. Demand cannot be backlogged, but can be totally or partially lost. Safety stock is an objective to reach rather than an industrial constraint to respect. The problem is NP-hard. We propose mixed integer programming heuristics based on a planning horizon decomposition strategy to find a feasible solution. The planning horizon is partitioned into several sub-horizons over which a freezing or a relaxation strategy is applied. Some experimental results showing the effectiveness of the approach on real-world instances are presented. A sensitivity analysis on the parameters of the heuristics is reported.
Mots clés : lot-sizing, setup time, shortage cost, safety stock deficit, production planning, mixed integer programming, heuristic
@article{RO_2007__41_2_171_0,
author = {Absi, Nabil and Kedad-Sidhoum, Safia},
title = {MIP-based heuristics for multi-item capacitated lot-sizing problem with setup times and shortage costs},
journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
pages = {171--192},
publisher = {EDP-Sciences},
volume = {41},
number = {2},
year = {2007},
doi = {10.1051/ro:2007014},
mrnumber = {2341439},
language = {en},
url = {http://www.numdam.org/articles/10.1051/ro:2007014/}
}
TY - JOUR AU - Absi, Nabil AU - Kedad-Sidhoum, Safia TI - MIP-based heuristics for multi-item capacitated lot-sizing problem with setup times and shortage costs JO - RAIRO - Operations Research - Recherche Opérationnelle PY - 2007 SP - 171 EP - 192 VL - 41 IS - 2 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/ro:2007014/ DO - 10.1051/ro:2007014 LA - en ID - RO_2007__41_2_171_0 ER -
%0 Journal Article %A Absi, Nabil %A Kedad-Sidhoum, Safia %T MIP-based heuristics for multi-item capacitated lot-sizing problem with setup times and shortage costs %J RAIRO - Operations Research - Recherche Opérationnelle %D 2007 %P 171-192 %V 41 %N 2 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/ro:2007014/ %R 10.1051/ro:2007014 %G en %F RO_2007__41_2_171_0
Absi, Nabil; Kedad-Sidhoum, Safia. MIP-based heuristics for multi-item capacitated lot-sizing problem with setup times and shortage costs. RAIRO - Operations Research - Recherche Opérationnelle, Tome 41 (2007) no. 2, pp. 171-192. doi : 10.1051/ro:2007014. http://www.numdam.org/articles/10.1051/ro:2007014/
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