Github user devaraj-kavali commented on the pull request: https://github.com/apache/spark/pull/11053#issuecomment-186855380 Thanks @yinxusen for the good suggestion, I have addressed it. > ModelSelectionViaTrainValidationSplitExample and JavaModelSelectionViaTrainValidationSplitExample still have a problem of Vector serialization. But I think we can add follow-up JIRA to locate the bug and fix it. Yes, we can create an another followup JIRA to fix the problem. Thank you.
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