3777 search results - page 301 / 756 » Estimating the Quality of Databases |
202
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SIGMOD
2007
ACM
16 years 4 months ago
2007
ACM
We demonstrate a novel query interface that enables users to construct a rich search query without any prior knowledge of the underlying schema or data. The interface, which is in...
192
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EDBT
2010
ACM
15 years 11 months ago
2010
ACM
Compressed bitmap indexes are increasingly used for efficiently querying very large and complex databases. The Word Aligned Hybrid (WAH) bitmap compression scheme is commonly rec...
141
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ILP
2003
Springer
15 years 10 months ago
2003
Springer
Query optimization is used frequently in relational database management systems. Most existing techniques are based on reordering the relational operators, where the most selective...
152
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SIGMOD
1998
ACM
15 years 9 months ago
1998
ACM
The CONTROL project at U.C. Berkeley has developed technologies to provide online behavior for data-intensive applications. Using new query processing algorithms, these technologi...
153
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ISCI
2007
15 years 4 months ago
2007
In an object-relational database management system, a query optimizer requires users to provide cost models of userdefined functions. The traditional approach is analytical, that...