2514 search results - page 31 / 503 » On the Computation of Approximations of Database Queries |
193
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PVM
2001
Springer
15 years 10 months ago
2001
Springer
Query processing in database systems may be improved by applying parallel processing techniques. One reason for improving query response time is to support the increased number que...
163
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SIGMOD
1999
ACM
15 years 10 months ago
1999
ACM
In large data warehousing environments, it is often advantageous to provide fast, approximate answers to complex aggregate queries based on statistical summaries of the full data....
288
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GIS
2005
ACM
16 years 7 months ago
2005
ACM
Group nearest neighbor (GNN) queries are a relatively new type of operations in spatial database applications. Different from a traditional kNN query which specifies a single quer...
179
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ADC
2007
Springer
16 years 11 days ago
2007
Springer
Structured Query Language (SQL) is the dominant language for querying relational databases today, and is an essential topic in introductory database courses in higher education. E...
259
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SSD
2009
Springer
16 years 21 days ago
2009
Springer
The range nearest-neighbor (NN) query is an important query type in location-based services, as it can be applied to the case that an NN query has a spatial region, instead of a lo...