716 search results - page 48 / 144 » Optimizing Queries in Extended Relational Databases |
163
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ICDE
2007
IEEE
16 years 18 days ago
2007
IEEE
We present a system that optimizes sequences of related client requests by combining small requests into larger ones, thus reducing per-request overhead. The system predicts upcom...
SIGMOD
2003
ACM
15 years 11 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...
111
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CIKM
2006
Springer
15 years 3 months ago
2006
Springer
In an uncertain database, each data item is modeled as a range associated with a probability density function. Previous works for this kind of data have focussed on simple queries...
VLDB
2004
ACM
15 years 4 months ago
2004
ACM
Histograms and Wavelet synopses provide useful tools in query optimization and approximate query answering. Traditional histogram construction algorithms, such as V-Optimal, optim...
181
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ICDE
2003
IEEE
16 years 18 days ago
2003
IEEE
Structural join operations are central to evaluating queries against XML data, and are typically responsible for consuming a lion's share of the query processing time. Thus, ...