Github user jkbradley commented on a diff in the pull request:
https://github.com/apache/spark/pull/7769#discussion_r36007413
--- Diff:
mllib/src/main/scala/org/apache/spark/mllib/clustering/LDAModel.scala ---
@@ -361,6 +361,43 @@ class DistributedLDAModel private (
}
}
+ /**
+ * Return the top documents for each topic
+ *
+ * This is approximate; it may not return exactly the top-weighted
documents for each topic.
--- End diff --
Btw, I had thought this originally, but is this actually approximate? I
think it's exact. But I'm pretty tired, so it would be great to get
confirmation from you @rotationsymmetry and @hhbyyh
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