Joseph K. Bradley created SPARK-9579:
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             Summary: Improve Word2Vec unit tests
                 Key: SPARK-9579
                 URL: https://issues.apache.org/jira/browse/SPARK-9579
             Project: Spark
          Issue Type: Test
          Components: MLlib
            Reporter: Joseph K. Bradley
            Priority: Minor


Word2Vec unit tests should be improved in a few ways:
* Test individual components of the algorithm.  This may mean breaking the code 
into smaller methods which can be tested individually.
* Test vs another library, if possible.  Following the example of unit tests 
for LogisticRegression, create robust unit tests making sure the two 
implementations produce similar results.  This may be too hard to do robustly 
(and deterministically).  In that case, the first improvement will suffice.



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