Github user hhbyyh commented on a diff in the pull request:
https://github.com/apache/spark/pull/17461#discussion_r135430545
--- Diff: mllib/src/main/scala/org/apache/spark/ml/clustering/LDA.scala ---
@@ -180,6 +179,29 @@ private[clustering] trait LDAParams extends Params
with HasFeaturesCol with HasM
@Since("1.6.0")
def getOptimizer: String = $(optimizer)
+
+ /**
+ * For Online optimizer only (currently): [[optimizer]] = "online".
+
+ * An initial model to be used as a starting point for the learning,
instead of a random
+ * initialization. Provide the path to a serialized trained LDAModel.
--- End diff --
LDAModel => LocalLDAModel
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