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A hybrid heuristic approach to solve the multi level capacitated lot sizing problem
(2011-08-29)
This paper presents preliminary results found by a hybrid heuristic applied to solve the Multi-Level Capacitated Lot Sizing Problem (MLCLSP). The proposed method combines a multi-population genetic algorithm and fix-and-optimize ...
Reformulation and a Lagrangian heuristic for lot sizing problem on parallel machines
(Springer, 2014-06-01)
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
(2017-03-01)
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 ...
A relax-and-fix with fix-and-optimize heuristic applied to multi-level lot-sizing problems
(2015-10-29)
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 ...
Production lot sizing and scheduling with non-triangular sequence-dependent setup times
(Taylor & Francis Ltd, 2014-04-18)
This paper considers a production lot sizing and scheduling problem with sequence-dependent setup times that are not triangular. Consider, for example, a product that contaminates some other product unless either a ...
The integrated lot sizing and cutting stock problem in a furniture factory
(2013-08-08)
This work studies the integrated lot sizing and cutting stock problem, where the goal is to capture the dependency that exists between two important decisions in the production process, in order to economize raw materials ...
The integrated lot sizing and cutting stock problem in a furniture factory
(2013-08-08)
This work studies the integrated lot sizing and cutting stock problem, where the goal is to capture the dependency that exists between two important decisions in the production process, in order to economize raw materials ...
Evaluating Genetic Algorithms with Different Population Structures on a Lot Sizing and Scheduling Problem
(Assoc Computing Machinery, 2008-01-01)
This paper studies the use of different population structures in a Genetic Algorithm (GA) applied to lot sizing and scheduling problems. The population approaches are divided into two types: single-population and ...
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 ...