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» Approximation Algorithms for Domination Search
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SIGMOD
1989
ACM
94views Database» more  SIGMOD 1989»
15 years 6 months ago
Redundancy in Spatial Databases
Spatial objects other than points and boxes can be stored in spatial indexes, but the techniques usually require the use of approximations that can be arbitrarily bad. This leads ...
Jack A. Orenstein
124
Voted
AAAI
1996
15 years 3 months ago
Building Steady-State Simulators via Hierarchical Feedback Decomposition
In recent years, compositional modeling and selfexplanatory simulation techniques have simplified the process of building dynamic simulators of physical systems. Building steady-s...
Nicolas F. Rouquette
SIGMOD
2010
ACM
154views Database» more  SIGMOD 2010»
15 years 2 months ago
Unbiased estimation of size and other aggregates over hidden web databases
Many websites provide restrictive form-like interfaces which allow users to execute search queries on the underlying hidden databases. In this paper, we consider the problem of es...
Arjun Dasgupta, Xin Jin, Bradley Jewell, Nan Zhang...
ICASSP
2010
IEEE
15 years 2 months ago
A novel estimation of feature-space MLLR for full-covariance models
In this paper we present a novel approach for estimating featurespace maximum likelihood linear regression (fMLLR) transforms for full-covariance Gaussian models by directly maxim...
Arnab Ghoshal, Daniel Povey, Mohit Agarwal, Pinar ...
112
Voted
NN
2006
Springer
113views Neural Networks» more  NN 2006»
15 years 2 months ago
Large-scale data exploration with the hierarchically growing hyperbolic SOM
We introduce the Hierarchically Growing Hyperbolic Self-Organizing Map (H2 SOM) featuring two extensions of the HSOM (hyperbolic SOM): (i) a hierarchically growing variant that al...
Jörg Ontrup, Helge Ritter