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Posted to issues@ignite.apache.org by "Maxim Muzafarov (Jira)" <ji...@apache.org> on 2019/10/08 11:18:00 UTC
[jira] [Updated] (IGNITE-10144) Optimize bagging upstream
transformer
[ https://issues.apache.org/jira/browse/IGNITE-10144?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Maxim Muzafarov updated IGNITE-10144:
-------------------------------------
Fix Version/s: (was: 2.8)
2.9
> 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: 2.9
>
>
> 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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