Sciweavers

1433 search results - page 85 / 287
» On Covering Problems of Rado
Sort
View
COR
2008
111views more  COR 2008»
15 years 6 months ago
An optimization algorithm for the inventory routing problem with continuous moves
The typical inventory routing problem deals with the repeated distribution of a single product from a single facility with an unlimited supply to a set of customers that can all b...
Martin W. P. Savelsbergh, Jin-Hwa Song
CORR
2008
Springer
127views Education» more  CORR 2008»
15 years 6 months ago
Branching proofs of infeasibility in low density subset sum problems
We prove that the subset sum problem ax = x {0, 1}n (SUB) has a polynomial time computable certificate of infeasibility for all a with density at most 1/(2n), and for almost all ...
Gábor Pataki, Mustafa Tural
CORR
2010
Springer
140views Education» more  CORR 2010»
15 years 6 months ago
Decision Problems for Petri Nets with Names
We prove several decidability and undecidability results for -PN, an extension of P/T nets with pure name creation and name management. We give a simple proof of undecidability of...
Fernando Rosa Velardo, David de Frutos-Escrig
DAM
2010
81views more  DAM 2010»
15 years 6 months ago
The k-in-a-tree problem for graphs of girth at least k
For all integers k 3, we give an O(n4 ) time algorithm for the problem whose instance is a graph G of girth at least k together with k vertices and whose question is "Does G...
W. Liu, Nicolas Trotignon
HM
2009
Springer
145views Optimization» more  HM 2009»
15 years 11 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