Github user mengxr commented on a diff in the pull request:
https://github.com/apache/spark/pull/7620#discussion_r35671223
--- Diff:
mllib/src/test/scala/org/apache/spark/mllib/clustering/LDASuite.scala ---
@@ -324,6 +324,58 @@ class LDASuite extends SparkFunSuite with
MLlibTestSparkContext {
}
}
+ test("Running EM LDA Optimizer with Empty Docs") {
+ val vocabSize = 6
+
+ def emptyDocs: Array[(Long, Vector)] = Array(
--- End diff --
~~~
val emptyDocs = Seq.fill(6)(Vectors.sparse(vocabSize, Array.empty,
Array.empty))
.zipWithIndex { case (wordCounts, docId) =>
(docId.toLong, wordCount)
}
~~~
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