Github user jkbradley commented on a diff in the pull request:
https://github.com/apache/spark/pull/6000#discussion_r29976493
--- Diff:
examples/src/main/scala/org/apache/spark/examples/mllib/LDAExample.scala ---
@@ -128,7 +133,16 @@ object LDAExample {
// Run LDA.
val lda = new LDA()
- lda.setK(params.k)
+
+ val optimizer = params.algorithm match {
+ case "em" => new EMLDAOptimizer
+ case "online" => new OnlineLDAOptimizer().setMiniBatchFraction(0.05
+ 1.0 / actualCorpusSize)
--- End diff --
Please add a small comment saying the adjustment is to be more robust on
tiny datasets.
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