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Posted to issues@spark.apache.org by "Kai Sasaki (JIRA)" <ji...@apache.org> on 2015/01/27 01:49:34 UTC

[jira] [Commented] (SPARK-5261) In some cases ,The value of word's vector representation is too big

    [ https://issues.apache.org/jira/browse/SPARK-5261?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14292750#comment-14292750 ] 

Kai Sasaki commented on SPARK-5261:
-----------------------------------

[~gq] Can you provide us data set? I tried with some patterns of num partitions but cannot reproduced it. 

> In some cases ,The value of word's vector representation is too big
> -------------------------------------------------------------------
>
>                 Key: SPARK-5261
>                 URL: https://issues.apache.org/jira/browse/SPARK-5261
>             Project: Spark
>          Issue Type: Bug
>          Components: MLlib
>    Affects Versions: 1.2.0
>            Reporter: Guoqiang Li
>
> {code}
>     val word2Vec = new Word2Vec()
>     word2Vec.
>       setVectorSize(100).
>       setSeed(42L).
>       setNumIterations(5).
>       setNumPartitions(36)
> {code}
> The average absolute value of the word's vector representation is 60731.8
> {code}
>     val word2Vec = new Word2Vec()
>     word2Vec.
>       setVectorSize(100).
>       setSeed(42L).
>       setNumIterations(5).
>       setNumPartitions(1)
> {code}
> The average  absolute value of the word's vector representation is 0.13889



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