Dynamic Sample Selection for Approximate Query Processing

  title={Dynamic Sample Selection for Approximate Query Processing},
  author={Brian Babcock and Surajit Chaudhuri and Gautam Das},
  booktitle={SIGMOD Conference},
In decision support applications, the ability to provide fast approximate answers to aggregation queries is desirable. One commonly-used technique for approximate query answering is sampling. For many aggregation queries, appropriately constructed biased (non-uniform) samples can provide more accurate approximations than a uniform sample. The optimal type of bias, however, varies from query to query. In this paper, we describe an approximate query processing technique that dynamically… CONTINUE READING
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