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Effective network formulations for lot sizing with backlogging in two-level serial supply chains
Date
2016-02-01
Author
Solyali, Oguz
Denizel, Meltem
Süral, Haldun
Metadata
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This study considers the serial lot sizing problem with backlogging in two-level supply chains to determine when and how much to order at a warehouse and ship to a retailer over a T-period planning horizon so that the external known demand occurring at the retailer is satisfied and the total cost at all levels is minimized. In particular, the uncapacitated two-level serial lot sizing problem with backlogging and the two-level serial lot sizing problem with cargo capacity and backlogging are formulated using effective shortest-path network representations, which define the convex hull of their feasible solutions. These representations lead to efficient algorithms with O(T-3) time for the uncapacitated problem and O(T-6) time for the capacitated problem. Furthermore, a tight reformulation with O(T-3) variables and O(T-2) constraints (resp.O(T-6) variables and O(T-5) constraints) is proposed for the uncapacitated (resp.capacitated) problem.
Subject Keywords
Supply chain
,
Multi-level lot sizing
,
Integer programming
URI
https://hdl.handle.net/11511/35969
Journal
IIE TRANSACTIONS
DOI
https://doi.org/10.1080/0740817x.2015.1027457
Collections
Department of Industrial Engineering, Article
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O. Solyali, M. Denizel, and H. Süral, “Effective network formulations for lot sizing with backlogging in two-level serial supply chains,”
IIE TRANSACTIONS
, pp. 146–157, 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/35969.