750 search results - page 54 / 150 » Aggregates in Possibilistic Databases |
123
Voted
ADC
2004
Springer
15 years 7 months ago
2004
Springer
Aggregating spatial objects is a necessary step in generating spatial data cubes to support roll-up/drill-down operations. Current approaches face performance bottleneck issues wh...
123
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IDEAS
1999
IEEE
15 years 6 months ago
1999
IEEE
Data-warehousing applications cope with enormous data sets in the range of Gigabytes and Terabytes. Queries usually either select a very small set of this data or perform aggregat...
195
Voted
VLDB
2009
ACM
16 years 2 months ago
2009
ACM
For a largenumber of data management problems, it would be very useful to be able to obtain a few samples from a data set, and to use the samples to guess the largest (or smallest)...
189
Voted
VLDB
2009
ACM
16 years 2 months ago
2009
ACM
We consider the problem of using sampling to estimate the result of an aggregation operation over a subset-based SQL query, where a subquery is correlated to an outer query by a NO...
118
Voted
BMCBI
2008
15 years 2 months ago
2008
Background: With the amount of influenza genome sequence data growing rapidly, researchers need machine assistance in selecting datasets and exploring the data. Enhanced visualiza...