zhengruifeng commented on a change in pull request #26735:
[SPARK-30102][ML][PYSPARK] GMM supports instance weighting
URL: https://github.com/apache/spark/pull/26735#discussion_r352551174
##########
File path:
mllib/src/test/scala/org/apache/spark/ml/clustering/GaussianMixtureSuite.scala
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@@ -267,6 +268,18 @@ class GaussianMixtureSuite extends MLTest with
DefaultReadWriteTest {
assert(trueLikelihood ~== floatLikelihood absTol 1e-6)
}
+ test("GMM support instance weighting") {
Review comment:
The final model is highly sensitive to the initlization, which is computed
in `initRandom` and highly related to the data distribution & partition.
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