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» Approximate query processing using wavelets
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ADC
2007
Springer
145views Database» more  ADC 2007»
14 years 1 months ago
Selectivity Estimation by Batch-Query based Histogram and Parametric Method
Histograms are used extensively for selectivity estimation and approximate query processing. Workloadaware dynamic histograms can self-tune itself based on query feedback without ...
Jizhou Luo, Xiaofang Zhou, Yu Zhang, Heng Tao Shen...
WIDM
2006
ACM
14 years 1 months ago
SRI: exploiting semantic information for effective query routing in a PDMS
The huge amount of data available from Internet information sources has focused much attention on the sharing of distributed information through Peer Data Management Systems (PDMS...
Federica Mandreoli, Riccardo Martoglia, Simona Sas...
SIGMOD
2011
ACM
276views Database» more  SIGMOD 2011»
12 years 10 months ago
Schedule optimization for data processing flows on the cloud
Scheduling data processing workflows (dataflows) on the cloud is a very complex and challenging task. It is essentially an optimization problem, very similar to query optimizati...
Herald Kllapi, Eva Sitaridi, Manolis M. Tsangaris,...
UIST
2009
ACM
14 years 2 months ago
Relaxed selection techniques for querying time-series graphs
Time-series graphs are often used to visualize phenomena that change over time. Common tasks include comparing values at different points in time and searching for specified patte...
Christian Holz, Steven Feiner
SIGMOD
2005
ACM
107views Database» more  SIGMOD 2005»
14 years 7 months ago
Relational Confidence Bounds Are Easy With The Bootstrap
Statistical estimation and approximate query processing have become increasingly prevalent applications for database systems. However, approximation is usually of little use witho...
Abhijit Pol, Chris Jermaine