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» Aggregation Queries in the Database-As-a-Service Model
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TKDE
2012
487views Formal Methods» more  TKDE 2012»
11 years 7 months ago
Query Planning for Continuous Aggregation Queries over a Network of Data Aggregators
—Continuous queries are used to monitor changes to time varying data and to provide results useful for online decision making. Typically a user desires to obtain the value of som...
Rajeev Gupta, Krithi Ramamritham
VLDB
1989
ACM
150views Database» more  VLDB 1989»
13 years 8 months ago
Aggregates in Possibilistic Databases
Fuzzy set theory represents a uniform framework for extending the relational database model to han-, dle imprecision of information found in the real world. None of the existing p...
Elke A. Rundensteiner, Lubomir Bic
WWW
2007
ACM
14 years 5 months ago
Optimized query planning of continuous aggregation queries in dynamic data dissemination networks
Continuous queries are used to monitor changes to time varying data and to provide results useful for online decision making. Typically a user desires to obtain the value of some ...
Rajeev Gupta, Krithi Ramamritham
SSD
2007
Springer
171views Database» more  SSD 2007»
13 years 10 months ago
Transformation of Continuous Aggregation Join Queries over Data Streams
We address continuously processing an aggregation join query over data streams. Queries of this type involve both join and aggregation operations, with windows specified on join ...
Tri Minh Tran, Byung Suk Lee
DBSEC
2006
134views Database» more  DBSEC 2006»
13 years 5 months ago
Aggregation Queries in the Database-As-a-Service Model
In the Database-As-a-Service (DAS) model, clients store their database contents at servers belonging to potentially untrusted service providers. To maintain data confidentiality, ...
Einar Mykletun, Gene Tsudik