STOC
2009
ACM
14 years 5 months ago
2009
ACM
We put forth a new computational notion of entropy, which measures the (in)feasibility of sampling high entropy strings that are consistent with a given protocol. Specifically, we...
STOC
2009
ACM
14 years 5 months ago
2009
ACM
We study integrality gaps for SDP relaxations of constraint satisfaction problems, in the hierarchy of SDPs defined by Lasserre. Schoenebeck [25] recently showed the first integra...
STOC
2009
ACM
14 years 5 months ago
2009
ACM
STOC
2009
ACM
14 years 5 months ago
2009
ACM
Submodular function maximization is a central problem in combinatorial optimization, generalizing many important problems including Max Cut in directed/undirected graphs and in hy...
STOC
2009
ACM
14 years 5 months ago
2009
ACM
We present an improved oracle for the distance sensitivity problem. The goal is to preprocess a directed graph G = (V, E) with non-negative edge weights to answer queries of the f...
STOC
2009
ACM
14 years 5 months ago
2009
ACM
We analyze the mixing time of a natural local Markov chain (the Glauber dynamics) on configurations of the solid-onsolid model of statistical physics. This model has been proposed...
STOC
2009
ACM
14 years 5 months ago
2009
ACM
We consider the problem of MaxMin allocation of indivisible goods. There are m items to be distributed among n players. Each player i has a nonnegative valuation pij for an item j...
STOC
2009
ACM
14 years 5 months ago
2009
ACM
A distributed task T on n processors is an input/output relation between a collection of processors' inputs and outputs. While all tasks are solvable if no processor may ever...
STOC
2009
ACM
14 years 5 months ago
2009
ACM
A function on n variables is called a k-junta if it depends on at most k of its variables. In this article, we show that it is possible to test whether a function is a k-junta or ...
STOC
2009
ACM
14 years 5 months ago
2009
ACM
Let K be a polytope in Rn defined by m linear inequalities. We give a new Markov Chain algorithm to draw a nearly uniform sample from K. The underlying Markov Chain is the first t...