Github user feynmanliang commented on a diff in the pull request:
https://github.com/apache/spark/pull/7454#discussion_r35131292
--- Diff:
mllib/src/main/scala/org/apache/spark/mllib/clustering/LDAOptimizer.scala ---
@@ -387,39 +387,32 @@ final class OnlineLDAOptimizer extends LDAOptimizer {
}
// Initialize the variational distribution q(theta|gamma) for the
mini-batch
- var gammad = new Gamma(gammaShape, 1.0 /
gammaShape).samplesVector(k).t // 1 * K
- var Elogthetad = digamma(gammad) - digamma(sum(gammad)) // 1 *
K
- var expElogthetad = exp(Elogthetad) // 1 *
K
- val expElogbetad = expElogbeta(::, ids).toDenseMatrix // K *
ids
+ var gammad: BDV[Double] =
--- End diff --
Yep, fixed.
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