Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/12176#discussion_r59135877
--- Diff:
mllib/src/main/scala/org/apache/spark/mllib/clustering/LDAOptimizer.scala ---
@@ -536,13 +532,16 @@ private[clustering] object OnlineLDAOptimizer {
* An optimization (Lee, Seung: Algorithms for non-negative matrix
factorization, NIPS 2001)
* avoids explicit computation of variational parameter `phi`.
* @see
[[http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.31.7566]]
+ *
+ * @return A tuple of topic distribution `gammad`, `sstatsd` and `ids`.
Latter two are the
--- End diff --
This doesn't really describe what they are, but simply one place they're
called. It doesn't need to be elaborate; see the explanations of what the firs
two are above.
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