Now showing items 1-10 of 202
Comparison of mip models for the integrated lot-sizing and one-dimensional cutting stock problem
Production processes comprising both the lot-sizing problem and the cutting stock problem are frequent in various industrial sectors. However these problems are usually treated separately, which can generates suboptimal ...
Genetic algorithm, MIP and improvement heuristic applied to the MLCLP with backlogging
The present paper solves the multi-level capacitated lot sizing problem with backlogging (MLCLSPB) combining a genetic algorithm with the solution of mixed-integer programming models and the improvement heuristic fix and ...
Strategies to model scheduling decisions to plan the soft drink production process
In this paper we present a mixed integer model that integrates lot sizing and lot scheduling decisions for the production planning of a soft drink company. The main contribution of the paper is to present a model that ...
Classification and literature review of integrated lot-sizing and cutting stock problems
The aim of this paper is to classify the literature related to the integration between the lot-sizing and cutting stock problem. A deterministic mathematical model, that considers multiple dimensions of integration and ...
Optimization Of An Integrated Lot Sizing And Cutting Stock Problem In The Paper Industry
(Sociedade Brasileira de Matemática Aplicada e Computacional, 2016)
Reformulation and a Lagrangian heuristic for lot sizing problem on parallel machines
We consider the capacitated lot sizing problem with multiple items, setup time and unrelated parallel machines. The aim of the article is to develop a Lagrangian heuristic to obtain good solutions to this problem and good ...
The integrated lot sizing and cutting stock problem with saw cycle constraints applied to furniture production
The integrated lot sizing and cutting stock problem is studied in the context of furniture production. The goal is to capture the interdependencies between the determination of the lot size and of the cutting process in ...
The combined cutting stock and lot-sizing problem in industrial processes
(Elsevier Science BvAmsterdamHolanda, 2006)
A relax-and-fix with fix-and-optimize heuristic applied to multi-level lot-sizing problems
In this paper, we propose a simple but efficient heuristic that combines construction and improvement heuristic ideas to solve multi-level lot-sizing problems. A relax-and-fix heuristic is firstly used to build an initial ...
MIP models for production lot sizing problems with distribution costs and cargo arrangement
(Palgrave Macmillan Ltd, 2016-11-01)
This study presents mixed integer programming (MIP) models for production lot sizing problems with distribution costs using unit load devices such as pallets and containers. Problems that integrate production lot sizing ...