3225 search results - page 429 / 645 » Query Optimization by Stored Queries |
274
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SIGMOD
2007
ACM
16 years 6 months ago
2007
ACM
Recently, a number of main memory algorithms for detecting the changes to XML data have been proposed. These approaches are not suitable for detecting changes to large XML documen...
258
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SIGMOD
2006
ACM
16 years 6 months ago
2006
ACM
Column-oriented database system architectures invite a reevaluation of how and when data in databases is compressed. Storing data in a column-oriented fashion greatly increases th...
214
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PODS
2006
ACM
16 years 6 months ago
2006
ACM
In this paper, we give a simple scheme for identifying approximate frequent items over a sliding window of size n. Our scheme is deterministic and does not make any assumption on ...
173
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EDBT
2006
ACM
16 years 6 months ago
2006
ACM
This paper describes the design and implementation of an XML storage manager for fast and interactive XPath expressions evaluation. This storage manager has two main parts: the XML...
188
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ICIW
2008
IEEE
16 years 29 days ago
2008
IEEE
—User’s behaviour in browsing sessions is a valuable source of information useful to analyze user interests and personalize the human-computer interaction during information se...