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Posted to issues@spark.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2019/06/17 14:00:00 UTC

[jira] [Created] (SPARK-28081) word2vec 'large' count value too low for very large corpora

Sean Owen created SPARK-28081:
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             Summary: word2vec 'large' count value too low for very large corpora
                 Key: SPARK-28081
                 URL: https://issues.apache.org/jira/browse/SPARK-28081
             Project: Spark
          Issue Type: Bug
          Components: ML
    Affects Versions: 2.4.3
            Reporter: Sean Owen
            Assignee: Sean Owen


The word2vec implementation operates on word counts, and uses a hard-coded value of 1e9 to mean "a very large count, larger than any actual count". However this causes the logic to fail if, in fact, a large corpora has some words that really do occur more than this many times. We can probably improve the implementation to better handle very large counts in general.



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