Github user feynmanliang commented on a diff in the pull request:
https://github.com/apache/spark/pull/9678#discussion_r44720656
--- Diff: mllib/src/main/scala/org/apache/spark/ml/clustering/LDA.scala ---
@@ -468,7 +452,37 @@ class LDAModel private[ml] (
/**
* :: Experimental ::
*
- * Distributed model fitted by [[LDA]] using Expectation-Maximization (EM).
+ * Local (non-distributed) model fitted by [[LDA]].
+ *
+ * This model stores the inferred topics only; it does not store info
about the training dataset.
+ */
+@Since("1.6.0")
+@Experimental
+class LocalLDAModel private[ml] (
+ uid: String,
+ vocabSize: Int,
+ @Since("1.6.0") override protected val oldLocalModel: OldLocalLDAModel,
--- End diff --
Does a `protected val` in a private constructor need a Since annotation?
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