Sciweavers

STOC
2005
ACM
135views Algorithms» more  STOC 2005»
14 years 12 months ago
Hardness of the undirected congestion minimization problem
We show that there is no log log M log log log M -approximation for the undirected congestion minimization problem unless NP ZPTIME(npolylog n ), where M is the size of the grap...
Matthew Andrews, Lisa Zhang
STOC
2005
ACM
127views Algorithms» more  STOC 2005»
14 years 12 months ago
Aggregating inconsistent information: ranking and clustering
Nir Ailon, Moses Charikar, Alantha Newman
STOC
2005
ACM
112views Algorithms» more  STOC 2005»
14 years 12 months ago
Covert two-party computation
We introduce the novel concept of covert two-party computation. Whereas ordinary secure two-party computation only guarantees that no more knowledge is leaked about the inputs of t...
Luis von Ahn, Nicholas J. Hopper, John Langford
STOC
2005
ACM
96views Algorithms» more  STOC 2005»
14 years 12 months ago
Every monotone graph property is testable
A graph property is called monotone if it is closed under taking (not necessarily induced) subgraphs (or, equivalently, if it is closed under removal of edges and vertices). Many ...
Noga Alon, Asaf Shapira
STOC
2005
ACM
110views Algorithms» more  STOC 2005»
14 years 12 months ago
Derandomization of auctions
Gagan Aggarwal, Amos Fiat, Andrew V. Goldberg, Jas...
STOC
2005
ACM
135views Algorithms» more  STOC 2005»
14 years 12 months ago
Quadratic forms on graphs
We introduce a new graph parameter, called the Grothendieck constant of a graph G = (V, E), which is defined as the least constant K such that for every A : E R, sup f:V S|V |-1 ...
Noga Alon, Konstantin Makarychev, Yury Makarychev,...
STOC
2005
ACM
101views Algorithms» more  STOC 2005»
14 years 12 months ago
Lower bounds for k-DNF resolution on random 3-CNFs
We prove exponential lower bounds for the refutation of a random 3-CNF with linear number of clauses by k-DNF Resolution for k log n/ log log n. For this we design a specially ta...
Michael Alekhnovich
STOC
2005
ACM
135views Algorithms» more  STOC 2005»
14 years 12 months ago
On the bias of traceroute sampling: or, power-law degree distributions in regular graphs
Understanding the graph structure of the Internet is a crucial step for building accurate network models and designing efficient algorithms for Internet applications. Yet, obtaini...
Dimitris Achlioptas, Aaron Clauset, David Kempe, C...
STOC
2005
ACM
112views Algorithms» more  STOC 2005»
14 years 12 months ago
The complexity of agreement
A celebrated 1976 theorem of Aumann asserts that honest, rational Bayesian agents with common priors will never "agree to disagree": if their opinions about any topic ar...
Scott Aaronson
STOC
2005
ACM
93views Algorithms» more  STOC 2005»
14 years 12 months ago
Representing hard lattices with O(n log n) bits
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)...
Miklós Ajtai