2853 search results - page 412 / 571 » On the Efficiency of Provenance Queries |
285
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SIGMOD
2008
ACM
16 years 6 months ago
2008
ACM
Database archiving is important for the retrieval of old versions of a database and for temporal queries over the history of data. We demonstrate XArch, a management system for ma...
182
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ICWN
2008
15 years 8 months ago
2008
: Problem statement: For a sensor network comprising autonomous and self-organizing data sources, efficient similarity-based search for semantic-rich resources (such as video data)...
311
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ICDT
2009
ACM
16 years 7 months ago
2009
ACM
A technique called user views has recently been proposed to focus user attention on relevant information in response to provenance queries over workflow executions [1, 2]: Given u...
174
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ICDT
2010
ACM
16 years 3 months ago
2010
ACM
It is known that the composition of schema mappings, each specified by source-to-target tgds (st-tgds), can be specified by a secondorder tgd (SO tgd). We consider the question of...
164
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DASFAA
2010
IEEE
16 years 1 months ago
2010
IEEE
Compression in column-oriented databases has been proven to offer both performance enhancements and reductions in storage consumption. This is especially true for read access as c...