318 search results - page 35 / 64 » Optimization of Query Streams Using Semantic Prefetching |
ICEBE
2005
IEEE
15 years 3 months ago
2005
IEEE
Electronic commerce is emerging as a major application area for database systems. A large number of e-commerce stores provide electronic product catalogs that allow customers to s...
122
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DLOG
2011
14 years 1 months ago
2011
W3C currently extends the SPARQL query language with so-called entailment regimes, which define how queries are evaluated using logical entailment relations. We describe a sound a...
VLDB
2005
ACM
15 years 3 months ago
2005
ACM
As a simple XML query language but with enough expressive power, XPath has become very popular. To expedite evaluation of XPath queries, we consider the problem of rewriting XPath...
MDM
2005
Springer
15 years 3 months ago
2005
Springer
Data access prediction has been proposed as a mechanism to overcome latency lag, and more recently as a means of conserving energy in mobile systems. We present a fully adaptive p...
158
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ICDE
2006
IEEE
15 years 11 months ago
2006
IEEE
To use their pool of resources efficiently, distributed stream-processing systems push query operators to nodes within the network. Currently, these operators, ranging from simple...