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» The hardness and approximation algorithms for l-diversity
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COCO
2005
Springer
89views Algorithms» more  COCO 2005»
14 years 1 months ago
Hardness of Max 3SAT with No Mixed Clauses
We study the complexity of approximating Max NME3SAT, a variant of Max 3SAT when the instances are guaranteed to not have any mixed clauses, i.e., every clause has either all its ...
Venkatesan Guruswami, Subhash Khot
SODA
2008
ACM
156views Algorithms» more  SODA 2008»
13 years 9 months ago
Approximating TSP on metrics with bounded global growth
The Traveling Salesman Problem (TSP) is a canonical NP-complete problem which is known to be MAXSNP hard even on Euclidean metrics (of high dimensions) [40]. In order to circumven...
T.-H. Hubert Chan, Anupam Gupta
ISAAC
2004
Springer
107views Algorithms» more  ISAAC 2004»
14 years 1 months ago
On the Hardness and Easiness of Random 4-SAT Formulas
Assuming 3-SAT formulas are hard to refute with high probability, Feige showed approximation hardness results, among others for the max bipartite clique. We extend this result in t...
Andreas Goerdt, André Lanka
FOCS
2000
IEEE
13 years 11 months ago
Approximating the single source unsplittable min-cost flow problem
Abstract. In the single source unsplittable min-cost flow problem, commodities must be routed simultaneously from a common source vertex to certain destination vertices in a given ...
Martin Skutella
SODA
2008
ACM
184views Algorithms» more  SODA 2008»
13 years 9 months ago
On the approximability of influence in social networks
In this paper, we study the spread of influence through a social network, in a model initially studied by Kempe, Kleinberg and Tardos [14, 15]: We are given a graph modeling a soc...
Ning Chen