Github user willb commented on a diff in the pull request: https://github.com/apache/spark/pull/15105#discussion_r78981066 --- 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 -- @srowen This code in general kind of bothers me (I'd rather see a single pass through the tuples with a bounded priority queue keeping track of the `num + 1` candidates than converting to a sequence and then allocating an array to sort in place). But I'm inclined to get some numbers showing that that is a good idea and make it a separate PR unless this is a good time to fold it in (so to speak).
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