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Title: Stochastic transportation-inventory network design problem
Authors: Shu, J. 
Teo, C.-P. 
Shen, Z.-J.M.
Keywords: Facilities/equipment planning: stochastic
Inventory/production: uncertainty, stochastic
Programming: nonlinear
Issue Date: 2005
Citation: Shu, J., Teo, C.-P., Shen, Z.-J.M. (2005). Stochastic transportation-inventory network design problem. Operations Research 53 (1) : 48-60. ScholarBank@NUS Repository.
Abstract: We study the stochastic transportation-inventory network design problem involving one supplier and multiple retailers. Each retailer faces some uncertain demand, and safety stock must be maintained to achieve suitable service levels. However, risk-pooling benefits may be achieved by allowing some retailers to serve as distribution centers for other retailers. The problem is to determine which retailers should serve as distribution centers and how to allocate the other retailers to the distribution centers. Shen et al. (2003) formulated this problem as a set-covering integer-programming model. The pricing problem that arises from the column generation algorithm gives rise to a new class of the submodular function minimization problem. In this paper, we show that by exploiting certain special structures, we can solve the general pricing problem in Shen et al. efficiently. Our approach utilizes the fact that the set of all lines in a two-dimension plane has low VC-dimension. We present computational results on several instances of sizes ranging from 40 to 500 retailers. Our solution technique can be applied to a wide range of other concave cost-minimization problems. © 2005 INFORMS.
Source Title: Operations Research
ISSN: 0030364X
DOI: 10.1287/opre.1040.0140
Appears in Collections:Staff Publications

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