176 search results - page 19 / 36 » Answering aggregate queries in data exchange |
76
Voted
DEXA
2005
Springer
15 years 3 months ago
2005
Springer
In relational database systems a combination of privileges and views is employed to limit a user’s access and to hide non-public data. The data privacy problem is to decide wheth...
EDBT
2009
ACM
15 years 1 months ago
2009
ACM
In a database system, disclosure of confidential private data may occur if users can put together the answers of past queries. Traditional access control mechanisms cannot guard a...
111
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EDBT
2004
ACM
15 years 9 months ago
2004
ACM
There is a growing interest in on-line algorithms for analyzing and querying data streams, that examine each stream element only once and have at their disposal, only a limited amo...
PVLDB
2008
14 years 9 months ago
2008
Given a dataset containing sensitive personal information, a statistical database answers aggregate queries in a manner that preserves individual privacy. We consider the problem ...
96
Voted
SENSYS
2004
ACM
15 years 2 months ago
2004
ACM
Wireless sensor networks offer the potential to span and monitor large geographical areas inexpensively. Sensors, however, have significant power constraint (battery life), makin...