1000 search results - page 183 / 200 » Provenance for Aggregate Queries |
ADBIS
2009
Springer
15 years 4 months ago
2009
Springer
Continuous queries applied over nonterminating data streams usually specify windows in order to obtain an evolving –yet restricted– set of tuples and thus provide timely result...
SEMWEB
2009
Springer
15 years 4 months ago
2009
Springer
Spreadsheet tools are often used in business and private scenarios in order to collect and store data, and to explore and analyze these data by executing functions and aggregation...
90
Voted
JCDL
2009
ACM
15 years 4 months ago
2009
ACM
A lot of future-related information is available in news articles or Web pages. This information can however differ to large extent and may fluctuate over time. It is therefore di...
63
Voted
UIST
2009
ACM
15 years 4 months ago
2009
ACM
The deep web contains an order of magnitude more information than the surface web, but that information is hidden behind the web forms of a large number of web sites. Metasearch e...
SSDBM
2007
IEEE
15 years 3 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...