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From "ASF GitHub Bot (Jira)" <j...@apache.org>
Subject [jira] [Updated] (FLINK-3783) Support weighted random sampling with reservoir
Date Mon, 14 Oct 2019 11:26:00 GMT

     [ https://issues.apache.org/jira/browse/FLINK-3783?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

ASF GitHub Bot updated FLINK-3783:
----------------------------------
    Labels: pull-request-available  (was: )

> Support weighted random sampling with reservoir
> -----------------------------------------------
>
>                 Key: FLINK-3783
>                 URL: https://issues.apache.org/jira/browse/FLINK-3783
>             Project: Flink
>          Issue Type: Improvement
>          Components: API / DataSet
>            Reporter: GaoLun
>            Assignee: GaoLun
>            Priority: Minor
>              Labels: pull-request-available
>
> In default random sampling, all items have the same probability to be selected. But in
weighted random sampling, the probability of each item to be selected is determined by its
weight with respect to the weights of the other items.



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