Sciweavers

5100 search results - page 64 / 1020
» The Linear Complexity of a Graph
Sort
View
PODC
2005
ACM
14 years 1 months ago
Facility location: distributed approximation
In this paper, we initiate the study of the approximability of the facility location problem in a distributed setting. In particular, we explore a trade-off between the amount of...
Thomas Moscibroda, Roger Wattenhofer
CORR
2011
Springer
169views Education» more  CORR 2011»
13 years 2 months ago
Linear-Time Algorithms for Graphs of Bounded Rankwidth: A Fresh Look Using Game Theory
d Abstract) Alexander Langer, Peter Rossmanith, and Somnath Sikdar RWTH Aachen University, 52074 Aachen, Germany. We present an alternative proof of a theorem by Courcelle, Makowsk...
Alexander Langer, Peter Rossmanith, Somnath Sikdar
SIAMCOMP
2008
77views more  SIAMCOMP 2008»
13 years 7 months ago
A Linear-Time Approximation Scheme for TSP in Undirected Planar Graphs with Edge-Weights
We give an algorithm requiring O(c1/2 n) time to find an -optimal traveling salesman tour in the shortest-path metric defined by an undirected planar graph with nonnegative edgele...
Philip N. Klein
DCG
2000
84views more  DCG 2000»
13 years 7 months ago
Convex and Linear Orientations of Polytopal Graphs
This paper examines directed graphs related to convex polytopes. For each fixed d-polytope and any acyclic orientation of its graph, we prove there exist both convex and concave fu...
J. Mihalisin, Victor Klee
CORR
2010
Springer
105views Education» more  CORR 2010»
13 years 8 months ago
Exact Shortest Path Queries for Planar Graphs Using Linear Space
We provide the first linear-space data structure with provable sublinear query time for exact point-topoint shortest path queries in planar graphs. We prove that for any planar gr...
Shay Mozes, Christian Sommer