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From "Manoj Kumar (JIRA)" <>
Subject [jira] [Commented] (SPARK-3726) RandomForest: Support for bootstrap options
Date Fri, 16 Jan 2015 18:58:35 GMT


Manoj Kumar commented on SPARK-3726:

Ah I see. I had my doubts when I started looking at the code, but was in a hurry to send a
Pull Request. So this can be closed?

> RandomForest: Support for bootstrap options
> -------------------------------------------
>                 Key: SPARK-3726
>                 URL:
>             Project: Spark
>          Issue Type: Improvement
>          Components: MLlib
>            Reporter: Joseph K. Bradley
>            Assignee: Manoj Kumar
>            Priority: Minor
> RandomForest uses BaggedPoint to simulate bootstrapped samples of the data.  The expected
size of each sample is the same as the original data (sampling rate = 1.0), and sampling is
done with replacement.  Adding support for other sampling rates and for sampling without replacement
would be useful.

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