2514 search results - page 278 / 503 » On the Computation of Approximations of Database Queries |
174
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EDBT
2008
ACM
16 years 6 months ago
2008
ACM
Data Stream Management Systems (DSMSs) must support optimized execution scheduling of multiple continuous queries on massive, and frequently bursty, data streams. Previous approac...
214
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VLDB
2004
ACM
16 years 2 days ago
2004
ACM
Given a point q, a reverse k nearest neighbor (RkNN) query retrieves all the data points that have q as one of their k nearest neighbors. Existing methods for processing such quer...
171
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CIKM
2003
Springer
15 years 12 months ago
2003
Springer
Existing estimation approaches for multi-dimensional databases often rely on the assumption that data distribution in a small region is uniform, which seldom holds in practice. Mo...
178
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LREC
2008
15 years 8 months ago
2008
We describe methods for extracting interesting factual relations from scientific texts in computational linguistics and language technology taken from the ACL Anthology. We use a ...
183
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SIGMOD
2001
ACM
16 years 6 months ago
2001
ACM
We study the problem of generating e cient, equivalent rewritings using views to compute the answer to a query. We take the closed-world assumption, in which views are materialize...