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» Provenance for Aggregate Queries
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SDM
2009
SIAM
164views Data Mining» more  SDM 2009»
14 years 7 months ago
Time-Decayed Correlated Aggregates over Data Streams.
Data stream analysis frequently relies on identifying correlations and posing conditional queries on the data after it has been seen. Correlated aggregates form an important examp...
Graham Cormode, Srikanta Tirthapura, Bojian Xu
ICDE
2004
IEEE
140views Database» more  ICDE 2004»
14 years 11 months ago
Approximate Aggregation Techniques for Sensor Databases
In the emerging area of sensor-based systems, a significant challenge is to develop scalable, fault-tolerant methods to extract useful information from the data the sensors collec...
Jeffrey Considine, Feifei Li, George Kollios, John...
EDBT
2004
ACM
187views Database» more  EDBT 2004»
14 years 10 months ago
Hierarchical In-Network Data Aggregation with Quality Guarantees
Earlier work has demonstrated the effectiveness of in-network data aggregation in order to minimize the amount of messages exchanged during continuous queries in large sensor netwo...
Antonios Deligiannakis, Yannis Kotidis, Nick Rouss...
PVLDB
2008
84views more  PVLDB 2008»
13 years 9 months ago
When is it time to rethink the aggregate configuration of your OLAP server?
OLAP servers based on relational backends typically exploit materialized aggregate tables to improve response times of complex analytical queries. One of the key problems in this ...
Katja Hose, Daniel Klan, Matthias Marx, Kai-Uwe Sa...
ESORICS
1994
Springer
14 years 1 months ago
Aggregation in Relational Databases: Controlled Disclosure of Sensitive Information
It has been observed that often the release of a limited part of an information resource poses no security risks, but the relase of a sufficiently large part of that resource might...
Amihai Motro, Donald G. Marks, Sushil Jajodia