7607 search results - page 97 / 1522 » Querying data provenance |
268
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ICDE
2007
IEEE
16 years 7 months ago
2007
IEEE
In this demo we present X-Time, a prototype for managing schema versioning in relational data warehouses, specifically oriented to support the formulation of crossversion queries,...
151
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COMPGEOM
2004
ACM
15 years 11 months ago
2004
ACM
For many geometric problems, there are efficient algorithms that use surprisingly very little extra space other than the given array holding the input. For many geometric query pr...
153
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VLDB
1998
ACM
15 years 10 months ago
1998
ACM
Small Materialized Aggregates (SMAs for short) are considered a highly flexible and versatile alternative for materialized data cubes. The basic idea is to compute many aggregate ...
231
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DAMON
2008
Springer
15 years 8 months ago
2008
Springer
Frequent elements and top-k queries constitute an important class of queries for data stream analysis applications. Certain applications require answers for both frequent elements...
