Title
A Dynamic Lot-Sizing Model with Demand Time Windows.
Abstract
One of the basic assumptions of the classical dynamic lot-sizing model is that the aggregate demand of a given period must be satisfied in that period. Under this assumption, if backlogging is not allowed, then the demand of a given period cannot be deliveredearlier orlater than the period. If backlogging is allowed, the demand of a given period cannot be deliveredearlier than the period, but it can be delivered later at the expense of a backordering cost. Like most mathematical models, the classical dynamic lot-sizing model is a simplified paraphrase of what might actually happen in real life. In most real-life applications, the customer offers a grace period--we call it ademand time window--during which a particular demand can be satisfied with no penalty. That is, in association with each demand, the customer specifies an acceptable earliest and a latest delivery time. The time interval characterized by the earliest and latest delivery dates of a demand represents the corresponding time window.This paper studies the dynamic lot-sizing problem with demand time windows and provides polynomial time algorithms for computing its solution. If backlogging is not allowed, the complexity of the proposed algorithm is O( T2) where T is the length of the planning horizon. When backlogging is allowed, the complexity of the proposed algorithm is O( T3).
Year
DOI
Venue
2001
10.1287/mnsc.47.10.1384.10259
Management Science
Keywords
Field
DocType
demand time windows,latest delivery time,dynamic lot-sizing model,corresponding time window,particular demand,time windows,polynomial time algorithm,proposed algorithm,lot-sizing,classical dynamic lot-sizing model,ademand time window,dynamic programming,aggregate demand,grace period,demand,inventory control,mathematical model,management science,mathematical optimization,algorithms,satisfiability,mathematical models
Dynamic programming,Economics,Mathematical optimization,Time horizon,Paraphrase,Inventory control,Sizing,Aggregate demand,Mathematical model,Time complexity
Journal
Volume
Issue
ISSN
47
10
0025-1909
Citations 
PageRank 
References 
30
2.14
14
Authors
3
Name
Order
Citations
PageRank
Chung Yee Lee11701172.81
Sila Çetinkaya214413.01
Albert P. M. Wagelmans337530.12