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Simple set cardinality estimation through random sampling

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arxiv 1512.07901 v3 pith:U3ZTV3AI submitted 2015-12-24 cs.DM

classification cs.DM
keywords sqrtdeltaepsilonalgorithmcardinalityrandomsimpleallowed
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abstract

We present a simple algorithm that estimates the cardinality $n$ of a set $V$ when allowed to sample elements of $V$ uniformly and independently at random. Our algorithm with probability $(1-\delta)$ returns a $(1\pm\epsilon)-$approximation of $n$ drawing $O\big(\sqrt{n} \cdot \epsilon^{-1}\sqrt{\log(\delta^{-1})}\big)$ samples (for $\epsilon^{-1}\sqrt{\log(\delta^{-1})} = O(\sqrt{n})$).

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Improved Cardinality Estimation by Learning Queries Containment Rates

    cs.DB 2019-08 conditional novelty 6.0 of 10

    Learned containment rates between query pairs, combined with a queries pool of known cardinalities, substantially improve cardinality estimates on multi-join queries.

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