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https://issues.apache.org/jira/browse/FLINK-3783?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15247774#comment-15247774
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ASF GitHub Bot commented on FLINK-3783:
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Github user gaoyike commented on the pull request:
https://github.com/apache/flink/pull/1909#issuecomment-211930810
What is the core algorithm A-ES or A-Chao?
2016-04-19 6:41 GMT-05:00 Trevor Grant <[email protected]>:
> Nice. If this gets merged before #1898
> <https://github.com/apache/flink/pull/1898> I'll integrate it in.
> Otherwise I'll open a seperate PR after.
>
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> <https://github.com/apache/flink/pull/1909#issuecomment-211873070>
>
> Support weighted random sampling with reservoir
> -----------------------------------------------
>
> Key: FLINK-3783
> URL: https://issues.apache.org/jira/browse/FLINK-3783
> Project: Flink
> Issue Type: Improvement
> Components: Core
> Reporter: GaoLun
> Assignee: GaoLun
> Priority: Minor
>
> 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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