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2009
ACM
120views Algorithms» more  STOC 2009»
16 years 1 months ago
A constant-factor approximation for stochastic Steiner forest
We consider the stochastic Steiner forest problem: suppose we were given a collection of Steiner forest instances, and were guaranteed that a random one of these instances would a...
Anupam Gupta, Amit Kumar
STOC
2009
ACM
172views Algorithms» more  STOC 2009»
16 years 1 months ago
Linear time approximation schemes for the Gale-Berlekamp game and related minimization problems
We design a linear time approximation scheme for the GaleBerlekamp Switching Game and generalize it to a wider class of dense fragile minimization problems including the Nearest C...
Marek Karpinski, Warren Schudy
STOC
2009
ACM
143views Algorithms» more  STOC 2009»
16 years 1 months ago
Affine dispersers from subspace polynomials
An affine disperser over Fn 2 for sources of dimension d is a function f : Fn 2 F2 such that for any affine space S Fn 2 of dimension at least d, we have {f(s) : s S} = F2. Aff...
Eli Ben-Sasson, Swastik Kopparty
STOC
2009
ACM
146views Algorithms» more  STOC 2009»
16 years 1 months ago
Conditional hardness for satisfiable 3-CSPs
In this paper we study a fundamental open problem in the area of probabilistic checkable proofs: What is the smallest s such that NP naPCP1,s[O(log n), 3]? In the language of har...
Ryan O'Donnell, Yi Wu
126
Voted
STOC
2009
ACM
238views Algorithms» more  STOC 2009»
16 years 1 months ago
On the convergence of regret minimization dynamics in concave games
We study a general sub-class of concave games, which we call socially concave games. We show that if each player follows any no-external regret minimization procedure then the dyn...
Eyal Even-Dar, Yishay Mansour, Uri Nadav