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» A Lower Bound for the Shortest Path Problem
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INFOCOM
2009
IEEE
15 years 4 months ago
Visibility-Graph-Based Shortest-Path Geographic Routing in Sensor Networks
— We study the problem of shortest-path geographic routing in a static sensor network. Existing algorithms often make routing decisions based on node information in local neighbo...
Guang Tan, Marin Bertier, Anne-Marie Kermarrec
NETWORKS
2006
14 years 9 months ago
Lower bounds for the relative greedy algorithm for approximating Steiner trees
Abstract. The Steiner tree problem is to find a shortest subgraph that spans a given set of vertices in a graph. This problem is known to be NP-hard and it is well known that a pol...
Stefan Hougardy, Stefan Kirchner
ALGORITHMICA
2011
14 years 4 months ago
On Bounded Leg Shortest Paths Problems
Let V be a set of points in a d-dimensional lp-metric space. Let s, t ∈ V and let L be any real number. An L-bounded leg path from s to t is an ordered set of points which conne...
Liam Roditty, Michael Segal
WEA
2007
Springer
117views Algorithms» more  WEA 2007»
15 years 3 months ago
Better Landmarks Within Reach
We study the real algorithm for the point-to-point shortest path problem. It combines A∗ search search, landmark-based lower bounds, and reach-based pruning. We suggest several ...
Andrew V. Goldberg, Haim Kaplan, Renato Fonseca F....
ANOR
2008
171views more  ANOR 2008»
14 years 9 months ago
A branch and bound method for the job-shop problem with sequence-dependent setup times
This paper deals with the job-shop scheduling problem with sequencedependent setup times. We propose a new method to solve the makespan minimization problem to optimality. The met...
Christian Artigues, Dominique Feillet