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SIAMDM
2000
159views more  SIAMDM 2000»
13 years 7 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 10 days 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
COMGEO
2012
ACM
12 years 3 months ago
Routing multi-class traffic flows in the plane
We study a class of multi-commodity flow problems in geometric domains: For a given planar domain P populated with obstacles (holes) of K ≥ 2 types, compute a set of thick path...
Joondong Kim, Joseph S. B. Mitchell, Valentin Poli...
STOC
1991
ACM
95views Algorithms» more  STOC 1991»
13 years 11 months ago
Fast Approximation Algorithms for Multicommodity Flow Problems
Frank Thomson Leighton, Fillia Makedon, Serge A. P...