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» On the hardness of approximating Max-Satisfy
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IPL
2006
84views more  IPL 2006»
13 years 10 months ago
On the hardness of approximating Max-Satisfy
Max-Satisfy is the problem of finding an assignment that satisfies the maximum number of equations in a system of linear equations over Q. We prove that unless NPBPP Max-Satisfy c...
Uriel Feige, Daniel Reichman
CORR
2007
Springer
217views Education» more  CORR 2007»
13 years 10 months ago
Hard constraint satisfaction problems have hard gaps at location 1
An instance of the maximum constraint satisfaction problem (Max CSP) is a nite collection of constraints on a set of variables, and the goal is to assign values to the variables ...
Peter Jonsson, Andrei A. Krokhin, Fredrik Kuivinen
SODA
2010
ACM
214views Algorithms» more  SODA 2010»
14 years 8 months ago
Amplified Hardness of Approximation for VCG-Based Mechanisms
If a two-player social welfare maximization problem does not admit a PTAS, we prove that any maximal-in-range truthful mechanism that runs in polynomial time cannot achieve an app...
Shaddin Dughmi, Hu Fu, Robert Kleinberg
IPL
2010
115views more  IPL 2010»
13 years 9 months ago
Hardness and approximation of minimum distortion embeddings
We show that the problem of computing a minimum distortion embedding of a given graph into a path remains NP-hard when the input graph is restricted to a bipartite, cobipartite, o...
Pinar Heggernes, Daniel Meister
STOC
2006
ACM
95views Algorithms» more  STOC 2006»
14 years 11 months ago
Conditional hardness for approximate coloring
Irit Dinur, Elchanan Mossel, Oded Regev