Github user jkbradley commented on the pull request:
https://github.com/apache/spark/pull/7454#issuecomment-123413852
Oh, I see. Thanks for investigating! In my example, the numbers of terms
is limited to 10 (so I could print the topics), probably making some documents
empty.
This LGTM pending tests, but can you please make a starter JIRA for adding
a unit test which tests online LDA with empty documents? You may need to note
in it that only SparseVectors can be empty. Thanks.
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