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STOC
2003
ACM
130views Algorithms» more  STOC 2003»
14 years 7 months ago
A tight bound on approximating arbitrary metrics by tree metrics
In this paper, we show that any n point metric space can be embedded into a distribution over dominating tree metrics such that the expected stretch of any edge is O(log n). This ...
Jittat Fakcharoenphol, Satish Rao, Kunal Talwar
ISAAC
1993
Springer
106views Algorithms» more  ISAAC 1993»
13 years 11 months ago
Faster Approximation Algorithms for the Rectilinear Steiner Tree Problem
Ulrich Fößmeier, Michael Kaufmann, Alex...
JISE
2006
107views more  JISE 2006»
13 years 7 months ago
FasterDSP: A Faster Approximation Algorithm for Directed Steiner Tree Problem
Ming-I Hsieh, Eric Hsiao-Kuang Wu, Meng-Feng Tsai
ICALP
2005
Springer
14 years 26 days ago
How Well Can Primal-Dual and Local-Ratio Algorithms Perform?
We define an algorithmic paradigm, the stack model, that captures many primal-dual and local-ratio algorithms for approximating covering and packing problems. The stack model is ...
Allan Borodin, David Cashman, Avner Magen