zhengruifeng commented on issue #26803: [SPARK-30178][ML] RobustScaler support large numFeatures URL: https://github.com/apache/spark/pull/26803#issuecomment-566419509 Moreover, for existing impl, we can use `reduceByKey`/`aggregateByKey` with feature index as a key to generate a `RDD[QuantileSummaries]` and then compute and fetch the range/median instead of the large `Array[QuantileSummaries]`, as @srowen suggested.
---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org
