3341 search results - page 298 / 669 » On Bounded Queries and Approximation |
157
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DCC
2007
IEEE
16 years 6 months ago
2007
IEEE
Data synopsis is a lossy compressed representation of data stored into databases that helps the query optimizer to speed up the query process, e.g. time to retrieve the data from ...
284
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ICDE
2003
IEEE
16 years 8 months ago
2003
IEEE
The problem of statistics and aggregate maintenance over data streams has gained popularity in recent years especially in telecommunications network monitoring, trend-related anal...
152
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WEBDB
2005
Springer
16 years 6 days ago
2005
Springer
We present a system for efficient indexed querying of XML documents, enhanced with sibling operations. R-tree index proposed in [5] has a very high cost for the following-sibling...
164
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IJCV
2006
15 years 6 months ago
2006
: Shape recognition is the field of computer vision which addresses the problem of finding out whether a query shape lies or not in a shape database, up to a certain invariance. Mo...
164
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TCC
2012
Springer
14 years 2 months ago
2012
Springer
We show a hardness-preserving construction of a PRF from any length doubling PRG which improves upon known constructions whenever we can put a non-trivial upper bound q on the numb...