2514 search results - page 255 / 503 » On the Computation of Approximations of Database Queries |
205
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DOLAP
2005
ACM
15 years 8 months ago
2005
ACM
OLAP users heavily rely on visualization of query answers for their interactive analysis of massive amounts of data. Very often, these answers cannot be visualized entirely and th...
162
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PVLDB
2010
15 years 5 months ago
2010
The goal of a threshold query is to detect all objects whose score exceeds a given threshold. This type of query is used in many settings, such as data mining, event triggering, a...
297
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ICDE
2005
IEEE
16 years 8 months ago
2005
IEEE
Sensor networks and other distributed information systems (such as the Web) must frequently access data that has a high per-attribute acquisition cost, in terms of energy, latency...
315
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GIS
2003
ACM
16 years 7 months ago
2003
ACM
Nearest neighbor query is one of the most important operations in spatial databases and their application domains, e.g., locationbased services, advanced traveler information syst...
164
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SIGMOD
2001
ACM
16 years 6 months ago
2001
ACM
Materialized views can provide massive improvements in query processing time, especially for aggregation queries over large tables. To realize this potential, the query optimizer ...