Title
The Stochastic Location-Assignment Problem on a Tree
Abstract
In the assignment problem units of supply are assigned on a one-to-one basis to units of demand so as to minimize the sum of the cost associated with each supply-to-demand matched pair. Defined on a network, the supplies and demands are located at vertices and the cost of a supply-to-demand matched pair is the distance between them. This paper considers a two-stage stochastic program for locating the units of supply based upon only a probabilistic characterization of demand. The objective of the first-stage location problem is to minimize the expected cost of the second-stage assignment problem. Principal results include showing that the problem is NP-hard on a general network, has a simple solution procedure on a line network, and is solvable by a low order polynomial greedy procedure on a tree network. Potential applications are discussed.
Year
DOI
Venue
2005
10.1007/s10479-005-2040-6
Annals OR
Keywords
Field
DocType
stochastic location,assignment problem,tree networks
Mathematical optimization,Vertex (geometry),Polynomial,Generalized assignment problem,Assignment problem,Probabilistic logic,Multi-commodity flow problem,1-center problem,Mathematics,Tree network
Journal
Volume
Issue
ISSN
136
1
0254-5330
Citations 
PageRank 
References 
3
0.46
10
Authors
2
Name
Order
Citations
PageRank
Ting Zeng130.46
James E. Ward2547.09