Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/15105#discussion_r78982095
--- 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 --
Yeah it's not efficient, and there's a todo about it above. I think you
could treat it as a separate issue. I'm pretty certain it's a win.
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