610 search results - page 6 / 122 » Efficient Query Evaluation on Probabilistic Databases |
113
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SIGMOD
2011
ACM
14 years 16 days ago
2011
ACM
Probabilistic database systems have successfully established themselves as a tool for managing uncertain data. However, much of the research in this area has focused on efficient...
104
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EDBT
2006
ACM
15 years 9 months ago
2006
ACM
In this paper we present a novel approach for estimating the selectivity of XML twig queries. Such a technique is useful for approximate query answering as well as for determining...
150
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VLDB
2007
ACM
15 years 10 months ago
2007
ACM
Evaluation of twig queries over probabilistic XML is investigated. Projection is allowed and, in particular, a query may be Boolean. It is shown that for a well-known model of pro...
EDBT
2010
ACM
15 years 4 months ago
2010
ACM
There are two broad approaches to query evaluation over probabilistic databases: (1) Intensional Methods proceed by manipulating expressions over symbolic events associated with u...
MOBIDE
2006
ACM
15 years 3 months ago
2006
ACM
The representation of moving objects in spatial database systems has become an important research topic in recent years. As it is not realistic to track and store the location of ...