2063 search results - page 283 / 413 » Containment of Aggregate Queries |
143
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ADBIS
2009
Springer
15 years 11 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...
122
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SEMWEB
2009
Springer
15 years 10 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...
155
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SEMWEB
2009
Springer
15 years 10 months ago
2009
Springer
Abstract. Recently, the W3C Linking Open Data effort has boosted the publication and inter-linkage of large amounts of RDF datasets on the Semantic Web. Various ontologies and know...
153
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JCDL
2009
ACM
15 years 10 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...
121
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SSDBM
2007
IEEE
15 years 10 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...