Estimating Cardinalities with Deep Sketches
Estimating Cardinalities with Deep Sketches
复制标题
用深度草图估计基数
DOI:
10.1145/3299869.3320218
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
A. Kemper
中科院分区:
文献类型:
--
作者:
Andreas Kipf;Dimitri Vorona;Jonas Müller;Thomas Kipf;Bernhard Radke;Viktor Leis;P. Boncz;Thomas Neumann;A. Kemper
We introduce Deep Sketches, which are compact models of databases that allow us to estimate the result sizes of SQL queries. Deep Sketches are powered by a new deep learning approach to cardinality estimation that can capture correlations between columns, even across tables. Our demonstration allows users to define such sketches on the TPC-H and IMDb datasets, monitor the training process, and run ad-hoc queries against trained sketches. We also estimate query cardinalities with HyPer and PostgreSQL to visualize the gains over traditional cardinality estimators.
DOI:
10.1109/icde.2011.5767867
发表时间:
2011
期刊:
2011 IEEE 27th International Conference on Data Engineering
影响因子:
--
作者:
A. Kemper;T. Neumann
通讯作者:
T. Neumann