7607 search results - page 228 / 1522 » Querying data provenance |
176
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USENIX
2007
15 years 9 months ago
2007
Network monitoring systems that support data archival and after-the-fact (retrospective) queries are useful for a multitude of purposes, such as anomaly detection and network and ...
200
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EDBT
2008
ACM
16 years 6 months ago
2008
ACM
Scientific data are available through an increasing number of heterogeneous, independently evolving, sources. Although the sources themselves are independently evolving, the data ...
152
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DCC
2007
IEEE
16 years 6 months ago
2007
IEEE
Data synopsis is a lossy compressed representation of data stored into databases that helps the query optimizer to speed up the query process, e.g. time to retrieve the data from ...
206
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TIME
2007
IEEE
16 years 27 days ago
2007
IEEE
Transaction-time temporal databases and query languages provide a solid framework for analyzing properties of queries over data streams. In this paper we focus on issues connected...
170
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DAWAK
2004
Springer
15 years 10 months ago
2004
Springer
Abstract. In this paper, we present a fast algorithm to answer rangesum queries in OLAP data cubes. Our algorithm supports constanttime queries while maintaining sub-linear time up...