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Posted to issues@spark.apache.org by "Joseph K. Bradley (JIRA)" <ji...@apache.org> on 2016/04/06 21:53:25 UTC

[jira] [Updated] (SPARK-6398) Improve utility of GaussianMixture for higher dimensional data

     [ https://issues.apache.org/jira/browse/SPARK-6398?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joseph K. Bradley updated SPARK-6398:
-------------------------------------
    Component/s:     (was: MLlib)
                 ML

> Improve utility of GaussianMixture for higher dimensional data
> --------------------------------------------------------------
>
>                 Key: SPARK-6398
>                 URL: https://issues.apache.org/jira/browse/SPARK-6398
>             Project: Spark
>          Issue Type: Improvement
>          Components: ML
>            Reporter: Travis Galoppo
>            Assignee: Travis Galoppo
>
> The current EM implementation for GaussianMixture protects itself from numerical instability at the expense of utility in high dimensions.  A few options exist for extending utility into higher dimensions.



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