Sciweavers

4860 search results - page 670 / 972
» SNPs Problems, Complexity, and Algorithms
Sort
View
AAAI
2011
14 years 6 months ago
On Expressing Value Externalities in Position Auctions
Externalities are recognized to exist in the sponsored search market, where two co-located ads compete for user attention. Existing work focuses on the effect of another ad on th...
Florin Constantin, Malvika Rao, Chien-Chung Huang,...
ICCV
2005
IEEE
16 years 8 months ago
Dynamic Refraction Stereo
In this paper we consider the problem of reconstructing the 3D position and surface normal of points on an unknown, arbitrarily-shaped refractive surface. We show that two viewpoi...
Nigel J. W. Morris, Kiriakos N. Kutulakos
SIGMOD
2008
ACM
125views Database» more  SIGMOD 2008»
16 years 6 months ago
Categorical skylines for streaming data
The problem of skyline computation has attracted considerable research attention. In the categorical domain the problem becomes more complicated, primarily due to the partially-or...
Nikos Sarkas, Gautam Das, Nick Koudas, Anthony K. ...
FOCS
2008
IEEE
16 years 1 months ago
Hardness of Minimizing and Learning DNF Expressions
We study the problem of finding the minimum size DNF formula for a function f : {0, 1}d → {0, 1} given its truth table. We show that unless NP ⊆ DTIME(npoly(log n) ), there i...
Subhash Khot, Rishi Saket
ICDCS
2008
IEEE
16 years 1 months ago
Multi-Site Retrieval of Declustered Data
Declustering techniques reduce query response times through parallel I/O by distributing data among multiple devices. Recently, replication based approaches were proposed to furth...
Ali Saman Tosun