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[SPARK-9610] Class and instance weighting for ML - Spark - [issue]
...This umbrella is for tracking tasks for adding support for label or instance weights to ML algorithms.  These additions will help handle skewed or imbalanced data, ensemble methods, etc...
http://issues.apache.org/jira/browse/SPARK-9610    Author: Joseph K. Bradley , 2019-11-20, 01:35
[SPARK-18409] LSH approxNearestNeighbors should use approxQuantile instead of sort - Spark - [issue]
...LSHModel.approxNearestNeighbors sorts the full dataset on the hashDistance in order to find a threshold.  It should use approxQuantile instead....
http://issues.apache.org/jira/browse/SPARK-18409    Author: Joseph K. Bradley , 2019-12-04, 07:11