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FUIN
2006
139views more  FUIN 2006»
13 years 10 months ago
Efficient Parallel Query Processing by Graph Ranking
In this paper we deal with the problem of finding an optimal query execution plan in database systems. We improve the analysis of a polynomial-time approximation algorithm due to M...
Dariusz Dereniowski, Marek Kubale
ICIP
2005
IEEE
14 years 11 months ago
Approximations of posterior distributions in blind deconvolution using variational methods
In this paper the blind deconvolution problem is formulated using the variational framework. With its use approximations of the involved probability distributions are developed re...
Javier Mateos, Rafael Molina, Aggelos K. Katsaggel...
JAT
2007
86views more  JAT 2007»
13 years 10 months ago
Gaussian averages of interpolated bodies and applications to approximate reconstruction
We prove sharp bounds for the expectation of the supremum of the Gaussian process indexed by the intersection of Bn p with ρBn q for 1 ≤ p, q ≤ ∞ and ρ > 0, and by the ...
Y. Gordon, A. E. Litvak, Shahar Mendelson, A. Pajo...
ICASSP
2011
IEEE
13 years 1 months ago
On the effectiveness of the Dark Channel Prior for single image dehazing by approximating with minimum volume ellipsoids
There is an increasing number of methods for removing haze and fog from a single image. One of such methods is Dark Channel Prior (DCP). The goal of this paper is to develop a mat...
Kristofor B. Gibson, Truong Q. Nguyen
KDD
2008
ACM
156views Data Mining» more  KDD 2008»
14 years 10 months ago
Unsupervised deduplication using cross-field dependencies
Recent work in deduplication has shown that collective deduplication of different attribute types can improve performance. But although these techniques cluster the attributes col...
Robert Hall, Charles A. Sutton, Andrew McCallum