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» Link Distance and Shortest Path Problems in the Plane
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STOC
2009
ACM
155views Algorithms» more  STOC 2009»
14 years 9 months ago
A nearly optimal oracle for avoiding failed vertices and edges
We present an improved oracle for the distance sensitivity problem. The goal is to preprocess a directed graph G = (V, E) with non-negative edge weights to answer queries of the f...
Aaron Bernstein, David R. Karger
SIAMCOMP
2000
125views more  SIAMCOMP 2000»
13 years 8 months ago
Approximating the Stretch Factor of Euclidean Graphs
There are several results available in the literature dealing with efficient construction of t-spanners for a given set S of n points in Rd. t-spanners are Euclidean graphs in whic...
Giri Narasimhan, Michiel H. M. Smid
LCN
2008
IEEE
14 years 3 months ago
Avoidance of multicast incapable branching nodes for multicast routing in WDM networks
— Although many multicast routing algorithms have been proposed in order to reduce the total cost in WDM optical networks, the link stress and delay are two parameters which are ...
Fen Zhou, Miklós Molnár, Bernard Cou...
DEBU
2010
170views more  DEBU 2010»
13 years 8 months ago
Roads Belong in Databases
The popularity of location-based services and the need to perform real-time processing on them has led to an interest in queries on road networks, such as finding shortest paths a...
Jagan Sankaranarayanan, Hanan Samet
APPROX
2009
Springer
153views Algorithms» more  APPROX 2009»
14 years 3 months ago
Average-Case Analyses of Vickrey Costs
We explore the average-case “Vickrey” cost of structures in a random setting: the Vickrey cost of a shortest path in a complete graph or digraph with random edge weights; the V...
Prasad Chebolu, Alan M. Frieze, Páll Melste...