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» Improved bounds for vehicle routing solutions
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NETWORKS
2008
13 years 8 months ago
New dynamic programming algorithms for the resource constrained elementary shortest path problem
The resource-constrained elementary shortest path problem arises as a pricing subproblem in branch-and-price algorithms for vehicle routing problems with additional constraints. W...
Giovanni Righini, Matteo Salani
HM
2009
Springer
145views Optimization» more  HM 2009»
14 years 1 months ago
Multiple Variable Neighborhood Search Enriched with ILP Techniques for the Periodic Vehicle Routing Problem with Time Windows
Abstract. In this work we extend a VNS for the periodic vehicle routing problem with time windows (PVRPTW) to a multiple VNS (mVNS) where several VNS instances are applied cooperat...
Sandro Pirkwieser, Günther R. Raidl
COR
2006
99views more  COR 2006»
13 years 8 months ago
Waste collection vehicle routing problem with time windows
In this paper, we address a real life waste collection vehicle routing problem with time windows (VRPTW) with consideration of multiple disposal trips and drivers' lunch brea...
Byung-In Kim, Seongbae Kim, Surya Sahoo
MP
2006
138views more  MP 2006»
13 years 8 months ago
A new ILP-based refinement heuristic for Vehicle Routing Problems
In the paper we address the Distance-Constrained Capacitated Vehicle Routing Problem (DCVRP), where k minimum-cost routes through a central depot have to be constructed so as to co...
Roberto De Franceschi, Matteo Fischetti, Paolo Tot...
ESWA
2006
182views more  ESWA 2006»
13 years 8 months ago
Improved route planning and scheduling of waste collection and transport
The collection of waste is a highly visible and important municipal service that involves large expenditures. Waste collection problems are, however, one of the most difficult ope...
Teemu Nuortio, Jari Kytöjoki, Harri Niska, Ol...