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85
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SODA
2010
ACM
224views Algorithms» more  SODA 2010»
15 years 12 months ago
Reconstructing approximate phylogenetic trees from quartet samples
Sagi Snir, Raphael Yuster
136
Voted
SIAMCOMP
1998
137views more  SIAMCOMP 1998»
15 years 2 months ago
Primal-Dual RNC Approximation Algorithms for Set Cover and Covering Integer Programs
We build on the classical greedy sequential set cover algorithm, in the spirit of the primal-dual schema, to obtain simple parallel approximation algorithms for the set cover probl...
Sridhar Rajagopalan, Vijay V. Vazirani
111
Voted
AAIM
2007
Springer
141views Algorithms» more  AAIM 2007»
15 years 8 months ago
An Almost Linear Time 2.8334-Approximation Algorithm for the Disc Covering Problem
The disc covering problem asks to cover a set of points on the plane with a minimum number of fix-sized discs. We develop an O(n(log n)2 (log log n)2 ) deterministic time 2.8334-a...
Bin Fu, Zhixiang Chen, Mahdi Abdelguerfi
FCT
2007
Springer
15 years 8 months ago
Analysis of Approximation Algorithms for k-Set Cover Using Factor-Revealing Linear Programs
We present new combinatorial approximation algorithms for k-set cover. Previous approaches are based on extending the greedy algorithm by efficiently handling small sets. The new a...
Stavros Athanassopoulos, Ioannis Caragiannis, Chri...