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https://issues.apache.org/jira/browse/SPARK-4022?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14181777#comment-14181777
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Joseph K. Bradley edited comment on SPARK-4022 at 10/23/14 7:00 PM:
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Hi Sean, Thanks for picking this up! W.r.t. the RandomForestSuite failure, I
agree that the test is likely flaky since it relies on choosing random subsets
of the features. That test actually does not really need to call
validateClassifier; the test was to check for a bug in training which caused an
exception previously. It should be fine to change (in that test in
RandomForestSuite.scala):
from {code}RandomForestSuite.validateClassifier(model, arr, 1.0){code}
to {code}RandomForestSuite.validateClassifier(model, arr, 0.0){code}
was (Author: josephkb):
Hi Sean, Thanks for picking this up! W.r.t. the RandomForestSuite failure, I
agree that the test is likely flaky since it relies on choosing random subsets
of the features. That test actually does not really need to call
validateClassifier; the test was to check for a bug in training which caused an
exception previously. It should be fine to change (in that test in
RandomForestSuite.scala):
from ```RandomForestSuite.validateClassifier(model, arr, 1.0)```
to ```RandomForestSuite.validateClassifier(model, arr, 0.0)```
> Replace colt dependency (LGPL) with commons-math
> ------------------------------------------------
>
> Key: SPARK-4022
> URL: https://issues.apache.org/jira/browse/SPARK-4022
> Project: Spark
> Issue Type: Bug
> Components: MLlib, Spark Core
> Reporter: Patrick Wendell
> Assignee: Sean Owen
> Priority: Critical
>
> The colt library we use is LGPL-licensed:
> http://acs.lbl.gov/ACSSoftware/colt/license.html
> We need to swap this out for commons-math. It is also a very old library that
> hasn't been updated since 2004.
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