486 search results - page 45 / 98 » Evaluating Top-k Queries over Web-Accessible Databases |
GI
1998
Springer
15 years 5 months ago
1998
Springer
Abstract. The interdisciplinary HERON project investigates the impact of multimedia applications from the humanities, in particular heraldry, on future database technology. We pres...
202
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ICDE
2006
IEEE
16 years 2 months ago
2006
IEEE
The high quality, structured data from Web structured sources is invaluable for many applications. Hidden Web databases are not directly crawlable by Web search engines and are on...
SSDBM
2007
IEEE
15 years 7 months ago
2007
IEEE
In stream join processing with limited memory, uniform random sampling is useful for approximate query evaluation. In this paper, we address the problem of reservoir sampling over...
114
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ICDE
2010
IEEE
14 years 11 months ago
2010
IEEE
Abstract-- Classification hierarchies are trees where links codify the fact that a node lower in the hierarchy contains documents whose contents are more specific than those one le...
101
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DASFAA
2007
IEEE
15 years 8 months ago
2007
IEEE
To support secure exchanging and sharing of XML data over the Internet, a myriad of XML access control mechanisms have been proposed. In the setting of node-level fine-grained acc...