Sciweavers

3341 search results - page 418 / 669
» On Bounded Queries and Approximation
Sort
View
CORR
2011
Springer
156views Education» more  CORR 2011»
15 years 1 months ago
Impossibility of Succinct Quantum Proofs for Collision-Freeness
We show that any quantum algorithm to decide whether a function f : [n] → [n] is a permutation or far from a permutation must make Ω n1/3 /w queries to f, even if the algorith...
Scott Aaronson
ORL
2010
156views more  ORL 2010»
15 years 1 months ago
Advertisement allocation for generalized second-pricing schemes
Recently, there has been a surge of interest in algorithms that allocate advertisement space in an online revenue-competitive manner. Most such algorithms, however, assume a pay-a...
Ashish Goel, Mohammad Mahdian, Hamid Nazerzadeh, A...
CSL
2009
Springer
15 years 10 months ago
Tree-Width for First Order Formulae
We introduce tree-width for first order formulae , fotw(). We show that computing fotw is fixed-parameter tractable with parameter fotw. Moreover, we show that on classes of formul...
Isolde Adler, Mark Weyer
ECCC
2008
168views more  ECCC 2008»
15 years 6 months ago
Algebrization: A New Barrier in Complexity Theory
Any proof of P = NP will have to overcome two barriers: relativization and natural proofs. Yet over the last decade, we have seen circuit lower bounds (for example, that PP does n...
Scott Aaronson, Avi Wigderson
EDBT
2006
ACM
182views Database» more  EDBT 2006»
16 years 6 months ago
On High Dimensional Skylines
In many decision-making applications, the skyline query is frequently used to find a set of dominating data points (called skyline points) in a multidimensional dataset. In a high-...
Chee Yong Chan, H. V. Jagadish, Kian-Lee Tan, Anth...