2853 search results - page 270 / 571 » On the Efficiency of Provenance Queries |
278
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ICDE
2005
IEEE
16 years 8 months ago
2005
IEEE
Efficient one-pass computation of F0, the number of distinct elements in a data stream, is a fundamental problem arising in various contexts in databases and networking. We consid...
163
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SIGMOD
2003
ACM
16 years 6 months ago
2003
ACM
Recently, a technique called quotient cube was proposed as a summary structure for a data cube that preserves its semantics, with applications for online exploration and visualiza...
198
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OTM
2005
Springer
16 years 5 days ago
2005
Springer
Because moving objects usually moves on spatial networks, efficient trajectory index structures are required to gain good retrieval performance on their trajectories. However, ther...
177
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JIIS
2002
15 years 6 months ago
2002
Although computer speed has steadily increased and memory is getting cheaper, the need for storage managers to deal efficiently with applications that cannot be held into main memo...
175
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WWW
2007
ACM
16 years 7 months ago
2007
ACM
In recent years, there has been a prevalence of search engines being employed to find useful information in the Web as they efficiently explore hyperlinks between web pages which ...