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VLDB
2009
ACM
143views Database» more  VLDB 2009»
14 years 5 months ago
Sampling-based estimators for subset-based queries
We consider the problem of using sampling to estimate the result of an aggregation operation over a subset-based SQL query, where a subquery is correlated to an outer query by a NO...
Shantanu Joshi, Christopher M. Jermaine