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Posted to issues@commons.apache.org by "Rob Tompkins (JIRA)" <ji...@apache.org> on 2017/04/12 00:12:41 UTC

[jira] [Updated] (MATH-1239) Add a fast sequential random sampler method

     [ https://issues.apache.org/jira/browse/MATH-1239?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rob Tompkins updated MATH-1239:
-------------------------------
    Fix Version/s: 4.X

> Add a fast sequential random sampler method
> -------------------------------------------
>
>                 Key: MATH-1239
>                 URL: https://issues.apache.org/jira/browse/MATH-1239
>             Project: Commons Math
>          Issue Type: Sub-task
>            Reporter: Thomas Neidhart
>             Fix For: 4.X
>
>
> Many applications need a fast way to randomly select n samples from a population without replacement.
> So far the best way seems to be the method proposed by Vitter in the following paper: 
> http://www.mathcs.emory.edu/~cheung/papers/StreamDB/RandomSampling/1984-Vitter-Faster-random-sampling.pdf
> A comparison with other methods can be found here (same author):
> https://hal.archives-ouvertes.fr/inria-00075929/document



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