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Posted to dev@ignite.apache.org by "Artem Malykh (JIRA)" <ji...@apache.org> on 2018/11/06 12:08:00 UTC
[jira] [Created] (IGNITE-10144) Optimize bagging upstream
transformer
Artem Malykh created IGNITE-10144:
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Summary: 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
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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