2850 search results - page 66 / 570 » Answering Queries using Humans, Algorithms and Databases |
239
Voted
ICDE
2007
IEEE
16 years 3 months ago
2007
IEEE
We study the problem of answering queries posed on virtual views of XML documents, a problem commonly encountered when enforcing XML access control and integrating data. We approa...
119
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PODS
2005
ACM
16 years 1 months ago
2005
ACM
Abstract. We present a semantics and answer set programs for relational peer data exchange systems. When a peer answers a query, it exchanges data with other peers in order to supp...
126
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ESWS
2009
Springer
15 years 8 months ago
2009
Springer
We consider the problem of a user querying semistructured data such as RDF without knowing its structure. In these circumstances, it is helpful if the querying system can perform a...
193
Voted
FOCS
2010
IEEE
14 years 11 months ago
2010
IEEE
Boosting is a general method for improving the accuracy of learning algorithms. We use boosting to construct improved privacy-preserving synopses of an input database. These are da...
140
Voted
AMW
2009
15 years 2 months ago
2009
We investigate the space requirements for summaries needed for maintaining exact answers to aggregate queries over histories of relational databases. We show that, in general, a su...