572 search results - page 25 / 115 » Exponential-Time Approximation of Hard Problems |
FOCS
2007
IEEE
15 years 4 months ago
2007
IEEE
We study the polynomial reconstruction problem for low-degree multivariate polynomials over finite field F[2]. In this problem, we are given a set of points x ∈ {0, 1}n and ta...
STOC
2005
ACM
15 years 10 months ago
2005
ACM
We present a variant of the Ajtai-Dwork public-key cryptosystem where the size of the public-key is only O(n log n) bits and the encrypted text/clear text ratio is also O(n log n)...
ECCC
2008
14 years 10 months ago
2008
We construct public-key cryptosystems that are secure assuming the worst-case hardness of approximating the minimum distance on n-dimensional lattices to within small poly(n) fact...
ECCC
2010
14 years 10 months ago
2010
Much work has been done on learning various classes of "simple" monotone functions under the uniform distribution. In this paper we give the first unconditional lower bo...
STOC
2006
ACM
15 years 10 months ago
2006
ACM
Many approximation algorithms have been presented in the last decades for hard search problems. The focus of this paper is on cryptographic applications, where it is desired to de...