Lot Sizing
The lot sizing problem: A tertiary study
... deterministic dynamic demand lot sizing problem. The authors showed that there are different ways to formulate the problem mathematically. In the uncapacitated case, product unit formulations, shortest ...
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On the equivalence of strong formulations for capacitated multi-level lot sizing problems with setup times
... In this paper, we presented theoretical results on the equivalence of three prominent strong formulations for the CLST-ML when the binary requirement is relaxed on a subset of variables (as these variables may take ...
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A priori reformulations for joint rolling horizon scheduling of materials processing and lot sizing problem
... classical lot sizing ...multi-level lot-sizing problems with backlogging, whose linear programming relaxations provide good lower bounds on the optimal solution ...the lot sizing ...
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A relax-and-fix with fix-and-optimize heuristic applied to multi-level lot-sizing problems
... tackle lot-sizing/production planning problems evident in practice, where decisions such as how much to produce or stock are constrained by various natural limitations such as capacities and setup ...
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Demand uncertainty and lot sizing in manufacturing systems: the effects of forecasting errors and mis specification
... various lot sizing rules with a Constant demand DGP which show the mean unit cost(i) graphed against the mean service level(i)for each of the buffer values used in the experiments when there is perfect ...
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Lot Sizing at AkzoNobel Polymer Chemicals: Improving the Quantity and Timing of Production Orders
... My research focuses on improving the lot sizing at ANPC; improving the quantity and timing of production orders. The intention is that the results support ANPC in defining the production planning and ...
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Progressive selection method for the coupled lot-sizing and cutting-stock problem
... itated lot-sizing problem and the solution space of these constraints is not affected by constraints (10); and using the fact that the shortest path reformulation of the classical multi-item capaci- tated ...
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Simultaneous Due Date Assignment and Lot Sizing with Uncertain Flow Times
... 2.2. Lot Sizing Literature The concept of batching has been examined in various families of ...are lot sizing and lot scheduling problems. For a review of lot sizing ...
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Joint Multi-item Storage Location Assignment Capacitated Lot Sizing Problem
... capacitated lot sizing problem (CLSP) is one of the most important and most difficult problems in production planning (Karimi et ...capacitated lot sizing problem was considered to be NP hard ...
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A hybrid heuristic for the multi-plant capacitated lot sizing problem with setup carry-over
... capacitated lot sizing problem (MPCLSP) with multiple items and periods is composed of multiple production centers that produce all the same items as well as enabling transfers amongst the ...
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An optimization framework for solving capacitated multi-level lot-sizing problems with backlogging
... single-item lot-sizing problem with ...single-item lot-sizing problem with backlogging on a single machine at a finite production ...single-item lot-sizing problems with ...
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Three Meta-heuristic Algorithms for the Single-item Capacitated Lot-sizing Problem (RESEARCH NOTE)
... and lot-size for a ...level lot-sizing problems, their variants and solution ...multi-stage lot-sizing problem with capacity ...Single-item lot-sizing ...coordinated ...
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Valid inequalities for two-period relaxations of big-bucket lot-sizing problems : zero setup case
... In this paper, we present our work investigating the special case of zero setup times. This does not only enable us to analyt- ically study inherent structures and hence provide useful insights that can be potentially ...
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A multi supplier lot sizing strategy using dynamic programming Pages 61-70 Download PDF
... In this paper, a supply chain consists of two stages, suppliers and a producer, is considered and the lot sizing problem with supplier selection is studied where there are multiple periods and a single ...
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Supplier selection and order lot sizing using dynamic programming Pages 319-328 Download PDF
... the lot sizing problem in the case that demand of the product varies over different time ...a lot-sizing problem with single product and proposed a new model formulation with discount rate ...
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A new approach for solving capacitated lot sizing and scheduling problem with sequence and period-dependent setup costs
... Many researchers have focused on lot sizing problems but several works have been proposed to solve the CLSPSD problem. Haase and Kimms (2000) study a single-stage, single-machine production system where ...
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Local cuts and two-period convex hull closures for big-bucket lot-sizing problems
... To provide a thorough investigation, we first gener- ated 20 problems with two periods only and with two to six items. The detailed data of the instances of this set, called 2PCLS (2-Period Capacitated Lot- ...
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A Multi-objective Mathematical Model for Sustainable Supplier Selection and Order Lot-Sizing under Inflation
... order lot- sizing and supplier selection closely related. Lot-sizing problems contain the objective of determining the period in which an order should take place and the quantities to be ...
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A joint lot-sizing and marketing model with reworks, scraps and imperfect products Pages 395-408 Download PDF
... of lot sizing where the primary objective is the maximization of profit which incorporates pricing and marketing expenditure (Fathian et ...production lot size, marketing expenditure and product's ...
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A decomposition algorithm for robust lot sizing problem with remanufacturing option
... traditional lot sizing prob- lems by Bertsimas and Thiele (2006) and adapted to the robust ELSR in Wei et ...special lot sizing problem consisting in the computation of basestock ...Robust ...
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