2229 search results - page 265 / 446 » The Case for Grounding Databases |
205
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SIGMOD
2003
ACM
16 years 6 months ago
2003
ACM
We consider the problem of approximating sliding window joins over data streams in a data stream processing system with limited resources. In our model, we deal with resource cons...
188
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SIGMOD
2003
ACM
16 years 6 months ago
2003
ACM
Most previous solutions to the schema matching problem rely in some fashion upon identifying "similar" column names in the schemas to be matched, or by recognizing commo...
177
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SIGMOD
2003
ACM
16 years 6 months ago
2003
ACM
One of the critical deficiencies of SQL is lack of support for ndimensional array-based computations which are frequent in OLAP environments. Relational OLAP (ROLAP) applications ...
111
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SIGMOD
2002
ACM
16 years 6 months ago
2002
ACM
Statistics play an important role in influencing the plans produced by a query optimizer. Traditionally, optimizers use statistics built over base tables and assume independence b...
163
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PODS
2001
ACM
16 years 6 months ago
2001
ACM
The paper investigates XML document speci cations with DTDs and integrity constraints, such as keysand foreign keys. We study the consistency problem of checking whether a given s...