705 search results - page 91 / 141 » Approximating Extended Answer Sets |
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ICDE
2005
IEEE
15 years 11 months ago
2005
IEEE
We consider the problem of maintaining frequency counts for items occurring frequently in the union of multiple distributed data streams. Na?ive methods of combining approximate f...
WSDM
2009
ACM
15 years 4 months ago
2009
ACM
We study the problem of answering ambiguous web queries in a setting where there exists a taxonomy of information, and that both queries and documents may belong to more than one ...
SSDBM
2007
IEEE
15 years 4 months ago
2007
IEEE
As relational database management systems are applied to non-traditional domains such as scientific data management, there is an increasing need to support queries with semantics ...
IMC
2005
ACM
15 years 3 months ago
2005
ACM
Sketch is a sublinear space data structure that allows one to approximately reconstruct the value associated with any given key in an input data stream. It is the basis for answer...
FOCS
2002
IEEE
15 years 2 months ago
2002
IEEE
We consider the problem of sampling almost uniformly from the set of contingency tables with given row and column sums, when the number of rows is a constant. Cryan and Dyer [3] h...