4382 search results - page 446 / 877 » Query by Semantic Example |
213
click to vote
SIGMOD
2007
ACM
16 years 5 months ago
2007
ACM
Accurate cardinality estimation is critically important to high-quality query optimization. It is well known that conventional cardinality estimation based on histograms or simila...
119
click to vote
INFOCOM
2007
IEEE
15 years 11 months ago
2007
IEEE
—The demand for efficient data dissemination/access techniques to find the relevant data from within a sensor network has led to the development of data-centric sensor networks...
121
click to vote
CIKM
2005
Springer
15 years 10 months ago
2005
Springer
The quality of document content, which is an issue that is usually ignored for the traditional ad hoc retrieval task, is a critical issue for Web search. Web pages have a huge var...
120
click to vote
FOCS
2003
IEEE
15 years 10 months ago
2003
IEEE
We initiate a general study of pseudo-random implementations of huge random objects, and apply it to a few areas in which random objects occur naturally. For example, a random obj...
142
click to vote
EDBT
2010
ACM
15 years 8 months ago
2010
ACM
Probabilistic top-k ranking queries have been extensively studied due to the fact that data obtained can be uncertain in many real applications. A probabilistic top-k ranking quer...