489 search results - page 26 / 98 » Query Selectivity Estimation via Data Mining |
ICASSP
2009
IEEE
15 years 6 months ago
2009
IEEE
In this paper, we study the problem of recognizing an unknown probability density function from one of its sample which is of interest in signal and image processing or telecommun...
93
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ICC
2007
IEEE
15 years 3 months ago
2007
IEEE
Abstract-- Channel estimation for frequency-selective timevarying channels is considered using superimposed training. We employ a discrete prolate spheroidal basis expansion model ...
110
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ICDE
2012
IEEE
13 years 2 months ago
2012
IEEE
—On a stream of two dimensional data items (x, y) where x is an item identifier, and y is a numerical attribute, a correlated aggregate query requires us to first apply a selec...
NECO
1998
14 years 11 months ago
1998
In the statistical approach for self-organizing maps (SOMs), learning is regarded as an estimation algorithm for a Gaussian mixture model with a Gaussian smoothing prior on the ce...
KDD
2004
ACM
16 years 5 days ago
2004
ACM
To enable information integration, schema matching is a critical step for discovering semantic correspondences of attributes across heterogeneous sources. While complex matchings ...