1588 search results - page 52 / 318 » Consistent query answering in databases |
195
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EDBT
2008
ACM
16 years 4 months ago
2008
ACM
Data exchange is the problem of transforming data structured under a schema (called source) into data structured under a different schema (called target). The emphasis of data exc...
142
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VLDB
1994
ACM
15 years 8 months ago
1994
ACM
This paper introduces a formalism to describe the needs and preferences of database users. Because of the precise formulation of these concepts, we have found an automatic and ver...
154
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DLOG
2008
15 years 6 months ago
2008
Answering queries posed over knowledge bases is a central problem in knowledge representation and database theory. In databases, query containment is one of the important query op...
140
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ICDT
2007
ACM
15 years 10 months ago
2007
ACM
We consider the problem of querying data sources that have limited capabilities and can thus only be accessed by complying with certain binding patterns for their attributes. This ...
109
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EDBT
2008
ACM
16 years 4 months ago
2008
ACM
In this paper we consider the on-line max and min query auditing problem: given a private association between fields in a data set, a sequence of max and min queries that have alr...