705 search results - page 62 / 141 » Approximating Extended Answer Sets |
174
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ICDE
2008
IEEE
15 years 11 months ago
2008
IEEE
Supporting top-k queries over distributed collections of schemaless XML data poses two challenges. While XML supports expressive query languages such as XPath and XQuery, these la...
ATAL
2007
Springer
15 years 4 months ago
2007
Springer
This paper analyzes bilateral multi-issue negotiation between selfinterested autonomous agents. The agents have time constraints in the form of both deadlines and discount factors...
ECCV
2004
Springer
15 years 11 months ago
2004
Springer
Various problems in Computer Vision become difficult due to a strong influence of lighting on the images of an object. Recent work showed analytically that the set of all images of...
PODS
1999
ACM
15 years 2 months ago
1999
ACM
We investigate the problem of how to extend constraint query languages with aggregate operators. We deal with standard relational aggregation, and also with aggregates speci c to ...
119
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ICLP
2003
Springer
15 years 3 months ago
2003
Springer
In recent research on nonmonotonic logic programming, repeatedly strong equivalence of logic programs P and Q has been considered, which holds if the programs P ∪ R and Q ∪ R h...