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Posted to issues@spark.apache.org by "Xiangrui Meng (JIRA)" <ji...@apache.org> on 2014/05/11 00:16:28 UTC

[jira] [Updated] (SPARK-1752) Standardize input/output format for vectors and labeled points

     [ https://issues.apache.org/jira/browse/SPARK-1752?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xiangrui Meng updated SPARK-1752:
---------------------------------

    Fix Version/s:     (was: 1.0.0)

> Standardize input/output format for vectors and labeled points
> --------------------------------------------------------------
>
>                 Key: SPARK-1752
>                 URL: https://issues.apache.org/jira/browse/SPARK-1752
>             Project: Spark
>          Issue Type: New Feature
>          Components: MLlib
>            Reporter: Xiangrui Meng
>            Assignee: Xiangrui Meng
>
> We should standardize the text format used to represent vectors and labeled points. The proposed formats are the following:
> 1. dense vector: [v0,v1,..]
> 2. sparse vector: (size,[i0,i1],[v0,v1])
> 3. labeled point: (label,vector)
> where "(..)" indicates a tuple and "[...]" indicate an array. Those are compatible with Python's syntax and can be easily parsed using `eval`.



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