664 search results - page 63 / 133 » Adaptive Selectivity Estimation Using Query Feedback |
127
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WSDM
2009
ACM
15 years 9 months ago
2009
ACM
A lot of the world’s knowledge is stored in books, which, as a result of recent mass-digitisation efforts, are increasingly available online. Search engines, such as Google Book...
146
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GLOBECOM
2006
IEEE
15 years 8 months ago
2006
IEEE
Abstract— We propose low-complexity equalizers for Alamouti space-time coded orthogonal frequency-division multiplexing (OFDM) systems in time- and frequency-selective channels, ...
222
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ICDE
2006
IEEE
16 years 3 months ago
2006
IEEE
The ongoing revolution in life sciences research is producing vast amounts of genetic and proteomic sequence data. Scientists want to pose increasingly complex queries on this dat...
102
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ICML
2010
IEEE
15 years 3 months ago
2010
IEEE
We address the problem of evaluating the risk of a given model accurately at minimal labeling costs. This problem occurs in situations in which risk estimates cannot be obtained f...
115
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VLDB
2001
ACM
15 years 6 months ago
2001
ACM
Estimating the number of distinct values is a wellstudied problem, due to its frequent occurrence in queries and its importance in selecting good query plans. Previous work has sh...