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HOPS - Hamming-Oriented Partition Search for production planning in the spinnin...
Victor Camargo; Franklina Toledo; Bernardo Almada LoboIn this paper, we investigate a two-stage lot-sizing and scheduling problem in a spinning industry.A new hybrid method called HOPS (Hamming-Oriented Partition Search), which is a branch-and-bound based procedure that incorporates a fix-and-optimize improvement method is proposedto solve the problem. An innovative partition choice for the fix-and-optimize is developed. The computational tests with generated inst...
Models for capacitated lot-sizing problem with backlogging, setup carryover and...
Marcio Belo Filho; Bernardo Almada Lobo; Franklina ToledoSetup operations are significant in some production environments. It is mandatory that their production plans consider some features, as setup state conservation across periods through setup carryover and crossover. The modelling of setup crossover allows more flexible decisions and is essential for problems with long setup times. This paper proposes two models for the capacitated lot-sizing problem with backlo...
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