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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2019/12/05 11:52:45 UTC

[GitHub] [spark] zhengruifeng opened a new pull request #26767: [SPARK-29914][ML][FOLLOWUP] CountVectorizer del big attribute array

zhengruifeng opened a new pull request #26767: [SPARK-29914][ML][FOLLOWUP] CountVectorizer del big attribute array
URL: https://github.com/apache/spark/pull/26767
 
 
   ### What changes were proposed in this pull request?
   CountVectorizer del big attribute array
   
   
   
   ### Why are the changes needed?
   Previous discussion is [here](https://github.com/apache/spark/pull/26547)
   
   > vocabulary is a big number, for example 1 << 18 by default. We will keep a big attribute array here.
   
   ### Does this PR introduce any user-facing change?
   No
   
   
   ### How was this patch tested?
   existing testsuites
   

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