2217 search results - page 257 / 444 » Rank-aware Query Optimization |
261
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ICDE
2002
IEEE
16 years 7 months ago
2002
IEEE
Overlapping and multi-version techniques are two popular frameworks that transform an ephemeral index into a multiple logical-tree structure in order to support versioning databas...
179
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STOC
2007
ACM
16 years 6 months ago
2007
ACM
The quantum adversary method is one of the most successful techniques for proving lower bounds on quantum query complexity. It gives optimal lower bounds for many problems, has ap...
254
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VLDB
2007
ACM
16 years 6 months ago
2007
ACM
In distributed stream processing environments, large numbers of continuous queries are distributed onto multiple servers. When one or more of these servers become overloaded due t...
257
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SIGMOD
2005
ACM
16 years 6 months ago
2005
ACM
Searching for all occurrences of a twig pattern in an XML document is an important operation in XML query processing. Recently a holistic method TwigStack [2] has been proposed. T...
170
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SIGMOD
2003
ACM
16 years 6 months ago
2003
ACM
We propose a framework for integrating data from multiple relational sources into an XML document that both conforms to a given DTD and satisfies predefined XML constraints. The f...