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ALGORITHMICA
2007
165views more  ALGORITHMICA 2007»
13 years 11 months ago
Motorcycle Graphs and Straight Skeletons
We present a new algorithm to compute motorcycle graphs. It runs in O(n √ n log n) time when n is the number of motorcycles. We give a new characterization of the straight skele...
Siu-Wing Cheng, Antoine Vigneron
ALGORITHMICA
2007
85views more  ALGORITHMICA 2007»
13 years 11 months ago
Approximation Algorithms for the Unsplittable Flow Problem
Amit Chakrabarti, Chandra Chekuri, Anupam Gupta, A...
ALGORITHMICA
2007
118views more  ALGORITHMICA 2007»
13 years 11 months ago
External-Memory Algorithms for Processing Line Segments in Geographic Information Systems
d abstract) Lars Arge1 , Darren Erik Vengroff2 , and Jeffrey Scott Vitter3 1 BRICS† , Department of Computer Science, University of Aarhus, Aarhus, Denmark 2 Department of Comp...
Lars Arge, Darren Erik Vengroff, Jeffrey Scott Vit...
ALGORITHMICA
2007
86views more  ALGORITHMICA 2007»
13 years 11 months ago
Detecting Holes and Antiholes in Graphs
In this paper we study the problems of detecting holes and antiholes in general undirected graphs, and we present algorithms for these problems. For an input graph G on n vertices ...
Stavros D. Nikolopoulos, Leonidas Palios
ALGORITHMICA
2007
106views more  ALGORITHMICA 2007»
13 years 11 months ago
Guest Editors' Foreword
János Pach, Farhad Shahrokhi
ALGORITHMICA
2007
80views more  ALGORITHMICA 2007»
13 years 11 months ago
Tree Spanners for Bipartite Graphs and Probe Interval Graphs
A tree t-spanner T in a graph G is a spanning tree of G such that the distance between every pair of vertices in T is at most t times their distance in G. The tree t-spanner proble...
Andreas Brandstädt, Feodor F. Dragan, Ho&agra...