[jira] [Commented] (IGNITE-10144) Optimize bagging upstream transformer

["Maxim Muzafarov (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IGNITE-10144?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16946733#comment-16946733 ] 

Maxim Muzafarov commented on IGNITE-10144:
------------------------------------------

Moved to 2.9 due to inactivity. Please, feel free to move it back if you will be able to complete the ticket by 2.8 code freeze date, December 2, 2019.

> Optimize bagging upstream transformer
> -------------------------------------
>
>                 Key: IGNITE-10144
>                 URL: https://issues.apache.org/jira/browse/IGNITE-10144
>             Project: Ignite
>          Issue Type: Improvement
>          Components: ml
>            Reporter: Artem Malykh
>            Assignee: Artem Malykh
>            Priority: Minor
>             Fix For: 2.8
>
>
> For now BaggingUpstreamTransformer makes upstream sequential to make transformation deterministic. Maybe we should do it other way, for example use mapping of the form (entryIdx, en) -> Stream.generate(() -> en).limit(new PoissonDistribution(Well19937c(entryIdx + seed), ...).sample())



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