Github user sethah commented on a diff in the pull request:
https://github.com/apache/spark/pull/11119#discussion_r83515271
--- Diff: mllib/src/main/scala/org/apache/spark/ml/util/ReadWrite.scala ---
@@ -300,15 +301,23 @@ private[ml] object DefaultParamsWriter {
paramMap: Option[JValue] = None): String = {
val uid = instance.uid
val cls = instance.getClass.getName
- val params =
instance.extractParamMap().toSeq.asInstanceOf[Seq[ParamPair[Any]]]
+ val params = instance.extractParamMap().toSeq
+ .filter(_.param.name !=
"initialModel").asInstanceOf[Seq[ParamPair[Any]]]
--- End diff --
It's also possible that we introduce other params that can be of type model
in the future. Thus, being an instance of `Param[Mode[_]]` may not be
sufficient to determine if it's the initialModel.
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