1548 search results - page 39 / 310 » Client-Site Query Extensions |
116
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EDBT
2009
ACM
15 years 6 months ago
2009
ACM
Twig queries have been extensively studied as a major fragment of XPATH queries to query XML data. In this paper, we study PXMLRANK query, (Q, k), which is to rank top-k probabili...
100
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ISPA
2004
Springer
15 years 5 months ago
2004
Springer
The demand of information services is popular in recent years. However, the requested of correct answer in a mobile environment needs to have more attentions. This is due to the sc...
117
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DLOG
2008
15 years 2 months ago
2008
We have shown recently that, in extensions of ALC that involve inverse roles, conjunctive query answering is harder than satisfiability: it is 2-ExpTime-complete in general and NEx...
CIKM
1999
Springer
15 years 4 months ago
1999
Springer
We present the architecture and a performance assessment of an extensible query optimizer written in Venus. Venus is a general-purpose active-database rule language embedded in C+...
DLOG
2009
15 years 27 days ago
2009
Abstract. We present a family of expressive extensions of Datalog, called Datalog