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» Containment of Aggregate Queries
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VLDB
1998
ACM
180views Database» more  VLDB 1998»
15 years 9 months ago
nD-SQL: A Multi-Dimensional Language for Interoperability and OLAP
We propose a multi-dimensional language called nD-SQL with the following features: (i) nD-SQL supports queries that interoperate amongst multiple relational sources with heterogen...
Frédéric Gingras, Laks V. S. Lakshma...
ADC
2010
Springer
266views Database» more  ADC 2010»
14 years 11 months ago
Counting distinct objects over sliding windows
Aggregation against distinct objects has been involved in many real applications with the presence of duplicates, including real-time monitoring moving objects. In this paper, we ...
Wenjie Zhang, Ying Zhang, Muhammad Aamir Cheema, X...
FAST
2011
14 years 8 months ago
Just-in-Time Analytics on Large File Systems
As file systems reach the petabytes scale, users and administrators are increasingly interested in acquiring highlevel analytical information for file management and analysis. T...
H. Howie Huang, Nan Zhang 0004, Wei Wang, Gautam D...
SIGMOD
2003
ACM
125views Database» more  SIGMOD 2003»
16 years 4 months ago
An Optimal and Progressive Algorithm for Skyline Queries
The skyline of a set of d-dimensional points contains the points that are not dominated by any other point on all dimensions. Skyline computation has recently received considerabl...
Dimitris Papadias, Yufei Tao, Greg Fu, Bernhard Se...
ICDE
2008
IEEE
204views Database» more  ICDE 2008»
16 years 6 months ago
Keyword Search on Spatial Databases
Many applications require finding objects closest to a specified location that contains a set of keywords. For example, online yellow pages allow users to specify an address and a ...
Ian De Felipe, Vagelis Hristidis, Naphtali Rishe