964 search results - page 169 / 193 » Efficiently Ordering Query Plans for Data Integration |
180
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SIGMOD
2005
ACM
15 years 12 months ago
2005
ACM
Immortal DB builds transaction time database support into the SQL Server engine, not in middleware. Transaction time databases retain and provide access to prior states of a datab...
110
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IJCSA
2006
14 years 11 months ago
2006
The explosion of the number of web-based information sources has drastically increased the need for intelligent mediation tools to be implemented between the users and these infor...
113
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DASFAA
2010
IEEE
14 years 9 months ago
2010
IEEE
Keyword search is widely recognized as a convenient way to retrieve information from XML data. In order to precisely meet users' search concerns, we study how to effectively r...
194
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ICDE
2003
IEEE
16 years 1 months ago
2003
IEEE
In many database applications involving string data, it is common to have near neighbor queries (asking for strings that are similar to a query string) or nearest neighbor queries...
VIS
2009
IEEE
16 years 27 days ago
2009
IEEE
We develop a new algorithm for isosurface extraction and view-dependent filtering from large time-varying fields, by using a novel Persistent Time-Octree (PTOT) indexing structure....