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Posted to issues@spark.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2017/06/15 08:47:00 UTC
[jira] [Commented] (SPARK-21104) Support sort with index when parse
LibSVM Record
[ https://issues.apache.org/jira/browse/SPARK-21104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16050172#comment-16050172 ]
Sean Owen commented on SPARK-21104:
-----------------------------------
Doesn't the format dictate that it's sorted already?
> Support sort with index when parse LibSVM Record
> ------------------------------------------------
>
> Key: SPARK-21104
> URL: https://issues.apache.org/jira/browse/SPARK-21104
> Project: Spark
> Issue Type: Improvement
> Components: MLlib
> Affects Versions: 2.1.1
> Reporter: darion yaphet
> Priority: Minor
>
> When I'm loading LibSVM from HDFS , I found feature index should be in ascending order .
> We can sorted with *indices* when we parse the input line input a (index, value) tuple and avoid check if indices are in ascending order after that.
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