Sciweavers

45 search results - page 5 / 9
» approx 2009
Sort
View
APPROX
2009
Springer
107views Algorithms» more  APPROX 2009»
14 years 26 days ago
Hierarchy Theorems for Property Testing
Referring to the query complexity of property testing, we prove the existence of a rich hierarchy of corresponding complexity classes. That is, for any relevant function q, we prov...
Oded Goldreich, Michael Krivelevich, Ilan Newman, ...
APPROX
2009
Springer
149views Algorithms» more  APPROX 2009»
14 years 26 days ago
On the Complexity of the Asymmetric VPN Problem
We give the first constant factor approximation algorithm for the asymmetric Virtual Private Network (Vpn) problem with arbitrary concave costs. We even show the stronger result, ...
Thomas Rothvoß, Laura Sanità
APPROX
2009
Springer
129views Algorithms» more  APPROX 2009»
14 years 26 days ago
Baum's Algorithm Learns Intersections of Halfspaces with Respect to Log-Concave Distributions
In 1990, E. Baum gave an elegant polynomial-time algorithm for learning the intersection of two origin-centered halfspaces with respect to any symmetric distribution (i.e., any D s...
Adam R. Klivans, Philip M. Long, Alex K. Tang
APPROX
2009
Springer
142views Algorithms» more  APPROX 2009»
14 years 26 days ago
Truthful Mechanisms via Greedy Iterative Packing
An important research thread in algorithmic game theory studies the design of efficient truthful mechanisms that approximate the optimal social welfare. A fundamental question is ...
Chandra Chekuri, Iftah Gamzu
APPROX
2009
Springer
85views Algorithms» more  APPROX 2009»
14 years 26 days ago
Algorithmic Aspects of Property Testing in the Dense Graphs Model
In this paper we consider two basic questions regarding the query complexity of testing graph properties in the adjacency matrix model. The first question refers to the relation ...
Oded Goldreich, Dana Ron