GitHub user feynmanliang opened a pull request:
https://github.com/apache/spark/pull/7307
[SPARK-8536]Generalize OnlineLDAOptimizer to asymmetric document-topic
Dirichlet priors
Modify `LDA` to take asymmetric document-topic prior distributions and
`OnlineLDAOptimizer` to use the asymmetric prior during variational inference.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/feynmanliang/spark
SPARK-8536-LDA-asymmetric-priors
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/7307.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #7307
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