2514 search results - page 72 / 503 » On the Computation of Approximations of Database Queries |
160
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WWW
2005
ACM
16 years 7 months ago
2005
ACM
We examine the difference and similarities between two online computer science citation databases DBLP and CiteSeer. The database entries in DBLP are inserted manually while the C...
217
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EDBT
2006
ACM
15 years 10 months ago
2006
ACM
Utilizing spatial index structures on secondary memory for nearest neighbor search in high-dimensional data spaces has been the subject of much research. With the potential to host...
173
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PODS
2004
ACM
16 years 6 months ago
2004
ACM
Several studies have demonstrated the effectiveness of the wavelet decomposition as a tool for reducing large amounts of data down to compact wavelet synopses that can be used to ...
165
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EDBT
2006
ACM
16 years 6 months ago
2006
ACM
Recent years have seen growing interest in effective algorithms for summarizing and querying massive, high-speed data streams. Randomized sketch synopses provide accurate approxima...
262
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SIGMOD
2007
ACM
16 years 6 months ago
2007
ACM
An emerging challenge in modern distributed querying is to efficiently process multiple continuous aggregation queries simultaneously. Processing each query independently may be i...