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» An Algorithm for the Graph Crossing Number Problem
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PC
2000
100views Management» more  PC 2000»
13 years 8 months ago
Parallel optimisation algorithms for multilevel mesh partitioning
Three parallel optimisation algorithms for use in the context of multilevel graph partitioning for unstructured meshes are described. The first, interface optimisation reduces the...
Chris Walshaw, Mark Cross
SWAT
2010
Springer
250views Algorithms» more  SWAT 2010»
14 years 1 months ago
Fixed-Parameter Algorithms for Cochromatic Number and Disjoint Rectangle Stabbing
Given a permutation π of {1, . . . , n} and a positive integer k, we give an algorithm with running time 2O(k2 log k) nO(1) that decides whether π can be partitioned into at mos...
Pinar Heggernes, Dieter Kratsch, Daniel Lokshtanov...
SIAMDM
2000
159views more  SIAMDM 2000»
13 years 8 months ago
Approximating Fractional Multicommodity Flow Independent of the Number of Commodities
Abstract. We describe fully polynomial time approximation schemes for various multicommodity flow problems in graphs with m edges and n vertices. We present the first approximation...
Lisa Fleischer
STOC
2010
ACM
186views Algorithms» more  STOC 2010»
14 years 1 months ago
Faster approximation schemes for fractional multicommodity flow problems via dynamic graph algorithms
We combine the work of Garg and K¨onemann, and Fleischer with ideas from dynamic graph algorithms to obtain faster (1 − ε)-approximation schemes for various versions of the mu...
Aleksander Madry
JGAA
2002
99views more  JGAA 2002»
13 years 8 months ago
Graph Layout Aesthetics in UML Diagrams: User Preferences
The merit of automatic graph layout algorithms is typically judged by their computational efficiency and the extent to which they conform to aesthetic criteria (for example, minim...
Helen C. Purchase, Jo-Anne Allder, David A. Carrin...