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NETWORKS
2008
13 years 5 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
BIBE
2007
IEEE
174views Bioinformatics» more  BIBE 2007»
13 years 12 months ago
Shortest Path Approaches for the Longest Common Subsequence of a Set of Strings
—We investigate the k-LCS problem that is finding a longest common subsequence (LCS) for k given input strings. The problem is known to have practical solutions for k = 2, but f...
Marina Barsky, Ulrike Stege, Alex Thomo, Chris Upt...
SIAMCOMP
2010
172views more  SIAMCOMP 2010»
13 years 7 days ago
More Algorithms for All-Pairs Shortest Paths in Weighted Graphs
In the first part of the paper, we reexamine the all-pairs shortest paths (APSP) problem and present a new algorithm with running time O(n3 log3 log n/ log2 n), which improves all...
Timothy M. Chan
CORR
2010
Springer
100views Education» more  CORR 2010»
13 years 5 months ago
Shortest paths between shortest paths and independent sets
We study problems of reconguration of shortest paths in graphs. We prove that the shortest reconguration sequence can be exponential in the size of the graph and that it is NP-hard...
Marcin Kaminski, Paul Medvedev, Martin Milanic
IJCV
2002
156views more  IJCV 2002»
13 years 5 months ago
Trinocular Stereo Using Shortest Paths and the Ordering Constraint
This paper describes a new algorithm for disparity estimation using trinocular stereo. The three cameras are placed in a right angled configuration. A graph is then constructed wh...
Motilal Agrawal