Github user srowen commented on a diff in the pull request:

    https://github.com/apache/spark/pull/15105#discussion_r78905531
  
    --- Diff: 
mllib/src/main/scala/org/apache/spark/mllib/feature/Word2Vec.scala ---
    @@ -566,8 +582,8 @@ class Word2VecModel private[spark] (
         wordList.zip(cosVec)
           .toSeq
           .sortBy(-_._2)
    -      .take(num + 1)
    -      .tail
    +      .filter(tup => wordOpt.map(w => !w.equals(tup._1)).getOrElse(true) 
&& tup._2 != 1.0d)
    --- End diff --
    
    It's probably easier still to leave the current code in place, up to 
"tail". If wordOpt is defined, then apply filter and take(num). If not, apply 
tail.


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