FOCS
2007
IEEE
14 years 6 months ago
2007
IEEE
We show for several planar and geometric problems that the best known approximation schemes are essentially optimal with respect to the dependence on ǫ. For example, we show that...
FOCS
2007
IEEE
14 years 6 months ago
2007
IEEE
In this paper, we resolve the smoothed and approximative complexity of low-rank quasi-concave minimization, providing both upper and lower bounds. As an upper bound, we provide th...
FOCS
2007
IEEE
14 years 6 months ago
2007
IEEE
We continue the recent line of work on the connection between semidefinite programming-based approximation algorithms and the Unique Games Conjecture. Given any boolean 2-CSP (or...
FOCS
2007
IEEE
14 years 6 months ago
2007
IEEE
FOCS
2007
IEEE
14 years 6 months ago
2007
IEEE
We study the mixing time of some Markov Chains converging to critical physical models. These models are indexed by a parameter β and there exists some critical value βc where th...
FOCS
2007
IEEE
14 years 6 months ago
2007
IEEE
We show that every construction of one-time signature schemes from a random oracle achieves black-box security at most 2(1+o(1))q , where q is the total number of oracle queries a...
FOCS
2007
IEEE
14 years 6 months ago
2007
IEEE
Attempts to find new quantum algorithms that outperform classical computation have focused primarily on the nonabelian hidden subgroup problem, which generalizes the central prob...
FOCS
2007
IEEE
14 years 6 months ago
2007
IEEE
Understanding how a single edge deletion can affect the connectivity of a graph amounts to finding the graph bridges. But when faced with d > 1 deletions, can we establish as ...
FOCS
2007
IEEE
14 years 6 months ago
2007
IEEE
The following source coding problem was introduced by Birk and Kol: a sender holds a word x ∈ {0, 1}n , and wishes to broadcast a codeword to n receivers, R1, . . . , Rn. The re...
FOCS
2007
IEEE
14 years 6 months ago
2007
IEEE
The Common Reference String (CRS) model equips all protocol participants with a common string that is sampled from a pre-specified distribution, say the uniform distribution. Thi...