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» Estimating Compilation Time of a Query Optimizer
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JACM
2012
11 years 10 months ago
Continuous sampling from distributed streams
A fundamental problem in data management is to draw and maintain a sample of a large data set, for approximate query answering, selectivity estimation, and query planning. With la...
Graham Cormode, S. Muthukrishnan, Ke Yi, Qin Zhang
RTSS
2003
IEEE
14 years 1 months ago
Data Caches in Multitasking Hard Real-Time Systems
Data caches are essential in modern processors, bridging the widening gap between main memory and processor speeds. However, they yield very complex performance models, which make...
Xavier Vera, Björn Lisper, Jingling Xue
PODS
2010
ACM
232views Database» more  PODS 2010»
14 years 29 days ago
Optimal sampling from distributed streams
A fundamental problem in data management is to draw a sample of a large data set, for approximate query answering, selectivity estimation, and query planning. With large, streamin...
Graham Cormode, S. Muthukrishnan, Ke Yi, Qin Zhang
ICDE
2003
IEEE
211views Database» more  ICDE 2003»
14 years 9 months ago
Capturing Sensor-Generated Time Series with Quality Guarantees
We are interested in capturing time series generated by small wireless electronic sensors. Battery-operated sensors must avoid heavy use of their wireless radio which is a key cau...
Iosif Lazaridis, Sharad Mehrotra
NIS
1998
131views more  NIS 1998»
13 years 7 months ago
Dynamic Memory Allocation for Large Query Execution
The execution time of a large query depends mainly on the memory utilization which should avoid disk accesses for intermediate results. Poor memory management can hurt performance ...
Luc Bouganim, Olga Kapitskaia, Patrick Valduriez