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Lot-Sizing with Start-Up Times
Management Science, 1998Many practical applications of lot-sizing and scheduling problems involve start-up times. Operations research literature contains but few studies of lot-sizing models that take start-up times explicitly into account. Here, we review some of these studies, discuss the models and their complexity, and we propose further models. We consider in particular
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The Single Item Dynamic Lot Sizing Problem with Minimum Lot Size Restriction
2009In practise, production managers prefer to determine an optimal production plan by using minimum lot size restrictions instead of setup cost [3, 5]. Anderson and Cheah [1] also noticed, that in “lot sizing practice out-of-pocket setup cost are commonly accounted for by specifying a minimum batch size parameter”.
Irena Okhrin, Knut Richter
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Stochastic Lot Sizing Problems
2013In this chapter dynamic lot sizing problems with random demands are discussed. Several approaches to handle uncertainty are presented. Single-item problems as well as multi-item lot sizing problems with limited capacities of a scarce resource are considered. Thereby the focus is on numerically tractable solution approaches.
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Computing Optimal Lot Sizes in the Economic Lot Scheduling Problem
Operations Research, 1991This paper treats a version of the Economic Lot Scheduling Problem (ELSP) in which items may be produced several times in different amounts during a cycle. We show how to compute the optimal lot sizes and cycle length, given the sequence of items in a cycle. This requires solving a parametric quadratic program, plus a few EOQ calculations.
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2013
The lot-sizing problem concerns a manufacturer that needs to solve a production planning problem. The producer must decide at which points in time to set up a production process, and when he/she does, how much to produce. There is a trade-off between inventory costs and costs associated with setting up the production process at some point in time ...
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The lot-sizing problem concerns a manufacturer that needs to solve a production planning problem. The producer must decide at which points in time to set up a production process, and when he/she does, how much to produce. There is a trade-off between inventory costs and costs associated with setting up the production process at some point in time ...
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2011
Title: Lot-sizing problem Author: Ondřej Kafka Department: Department of probability and mathematical statistics Supervisor: RNDr. Martin Branda, Ph.D. Abstract: In the present work, we define the basic concepts of lot-sizing. We introduce Wagner-Whitin's dynamic lot size problem and derive a dynamic programming algorithm for the solution. Next we look
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Title: Lot-sizing problem Author: Ondřej Kafka Department: Department of probability and mathematical statistics Supervisor: RNDr. Martin Branda, Ph.D. Abstract: In the present work, we define the basic concepts of lot-sizing. We introduce Wagner-Whitin's dynamic lot size problem and derive a dynamic programming algorithm for the solution. Next we look
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On-chip single nanoparticle detection and sizing by mode splitting in an ultrahigh-Q microresonator
Nature Photonics, 2009Jiangang Zhu, Yun-Feng Xiao, Lin Li
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