664 search results - page 14 / 133 » Adaptive Selectivity Estimation Using Query Feedback |
VTC
2008
IEEE
14 years 1 months ago
2008
IEEE
—OFDM is an attractive solution for the design of future wireless communications due to its robustness to dispersion in multipath environments. Additional diversity gains can be ...
CIKM
1998
Springer
13 years 11 months ago
1998
Springer
Despite of the fact that large line segment datasets are appearing more and more frequently in numerous applications involving spatial data, such as GIS 8, 9] multimedia 6] and ev...
ICDE
2001
IEEE
14 years 8 months ago
2001
IEEE
We describe efficient algorithms for accurately estimating the number of matches of a small node-labeled tree, i.e., a twig, in a large node-labeled tree, using a summary data str...
NETWORKING
2007
13 years 8 months ago
2007
IP networks present a challenging environment for video streaming because they do not provide throughput, jitter, or loss rate guarantees. In this work, we focus on improving the p...
ICDE
2007
IEEE
14 years 8 months ago
2007
IEEE
Estimating the selectivity of queries is a crucial problem in database systems. Virtually all database systems rely on the use of selectivity estimates to choose amongst the many ...