493 search results - page 54 / 99 » Consensus answers for queries over probabilistic databases |
ICDT
1999
ACM
15 years 3 months ago
1999
ACM
A large number of database index structures have been proposed over the last two decades, and little consensus has emerged regarding their relative e ectiveness. In order to empir...
107
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EDBT
2008
ACM
15 years 11 months ago
2008
ACM
Skyline query is of great importance in many applications, such as multi-criteria decision making and business planning. In particular, a skyline point is a data object in the dat...
166
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CSFW
2011
IEEE
13 years 11 months ago
2011
IEEE
—This paper explores the idea of knowledge-based security policies, which are used to decide whether to answer queries over secret data based on an estimation of the querier’s ...
103
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ICDE
2006
IEEE
15 years 5 months ago
2006
IEEE
The window query model is widely used in data stream management systems where the focus of a continuous query is limited to a set of the most recent tuples. In this dissertation, ...
106
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ICDT
1999
ACM
15 years 3 months ago
1999
ACM
Abstract. In this paper we consider databases representing information about moving objects (e.g. vehicles), particularly their location. We address the problems of updating and qu...