493 search results - page 82 / 99 » Consensus answers for queries over probabilistic databases |
162
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SIGMOD
1998
ACM
15 years 10 months ago
1998
ACM
Query optimization is an integral part of relational database management systems. One important task in query optimization is selectivity estimation, that is, given a query P, we ...
166
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STOC
2010
ACM
15 years 11 months ago
2010
ACM
We define a new interactive differentially private mechanism — the median mechanism — for answering arbitrary predicate queries that arrive online. Given fixed accuracy and...
154
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MM
2005
ACM
15 years 11 months ago
2005
ACM
In this paper we unify two supposedly distinct tasks in multimedia retrieval. One task involves answering queries with a few examples. The other involves learning models for seman...
158
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WWW
2008
ACM
16 years 6 months ago
2008
ACM
This paper studies the problem of unified ranked retrieval of heterogeneous XML documents and Web data. We propose an effective search engine called Sailer to adaptively and versa...
202
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SEMWEB
2009
Springer
15 years 10 months ago
2009
Springer
Abstract—For many tasks, such as the integration of knowledge bases in the semantic web, one must not only handle the knowledge itself, but also characterizations of this knowled...