Title
The one-commodity pickup and delivery travelling salesman problem on a path or a tree
Abstract
Optimization algorithms for both path and tree topology classes of the one-commodity pickup and delivery travelling salesman problem (1-PDTSP) are proposed in this article, which focus on minimizing the route distance to transport products among pickup and delivery customers by a single vehicle with a limited capacity of k. Each pickup customer provides one unit volume of the product while each delivery customer requires one unit volume of the product. For the path case, we propose an O(n2/ min (k,n)) algorithm for any arbitrary k, and two O(n) algorithms for k = 1 and k = ∞. For the tree case, O(n2) and O(n) algorithms are proposed for k = 1 and k = ∞, respectively. Moreover, when k is arbitrary, the problem becomes NP-hard in the strong sense. © 2006 Wiley Periodicals, Inc. NETWORKS, Vol. 48(1), 24–35 2006
Year
DOI
Venue
2006
10.1002/net.v48:1
Networks
Keywords
Field
DocType
tree,travelling salesman problem,path
Combinatorics,Mathematical optimization,Network topology,Travelling salesman problem,Tree structure,Optimization algorithm,Pickup,Mathematics
Journal
Volume
Issue
ISSN
48
1
0028-3045
Citations 
PageRank 
References 
8
0.70
8
Authors
3
Name
Order
Citations
PageRank
Fan Wang116612.73
Andrew Lim293789.78
Zhou Xu320814.97