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[SPARK-14771] Python ML Param and UID issues - Spark - [issue]
...This is an umbrella for tracking issues with PySpark ML {{Param}}s and ML UIDs, including: inconsistencies with Scala missing features (which are in Scala) bugs...
http://issues.apache.org/jira/browse/SPARK-14771    Author: Joseph K. Bradley , 2019-05-21, 04:15
[SPARK-9579] Improve Word2Vec unit tests - Spark - [issue]
...Word2Vec unit tests should be improved in a few ways: Test individual components of the algorithm.  This may mean breaking the code into smaller methods which can be tested individually...
http://issues.apache.org/jira/browse/SPARK-9579    Author: Joseph K. Bradley , 2019-05-21, 04:15
[SPARK-14046] RandomForest improvement umbrella - Spark - [issue]
...This is an umbrella for improvements to learning Random Forests: RandomForestClassifier, RandomForestRegressor.Note: Aspects of RFs which are related to individual trees should be listed und...
http://issues.apache.org/jira/browse/SPARK-14046    Author: Joseph K. Bradley , 2019-05-21, 04:13
[SPARK-10496] Efficient DataFrame cumulative sum - Spark - [issue]
...Goal: Given a DataFrame with a numeric column X, create a new column Y which is the cumulative sum of X.This can be done with window functions, but it is not efficient for a large number of ...
http://issues.apache.org/jira/browse/SPARK-10496    Author: Joseph K. Bradley , 2019-05-21, 04:13
[SPARK-14047] GBT improvement umbrella - Spark - [issue]
...This is an umbrella for improvements to learning Gradient Boosted Trees: GBTClassifier, GBTRegressor.Note: Aspects of GBTs which are related to individual trees should be listed under SPARK-...
http://issues.apache.org/jira/browse/SPARK-14047    Author: Joseph K. Bradley , 2019-05-21, 04:13
[SPARK-8544] PMML export for Gradient Boosted Trees - Spark - [issue]
http://issues.apache.org/jira/browse/SPARK-8544    Author: Joseph K. Bradley , 2019-05-21, 04:13
[SPARK-14501] spark.ml parity for fpm - frequent items - Spark - [issue]
...This is an umbrella for porting the spark.mllib.fpm subpackage to spark.ml.I am initially creating a single subtask, which will require a brief design doc for the DataFrame-based API....
http://issues.apache.org/jira/browse/SPARK-14501    Author: Joseph K. Bradley , 2019-05-21, 04:14
[SPARK-13868] Random forest accuracy exploration - Spark - [issue]
...This is a JIRA for exploring accuracy improvements for Random Forests.BackgroundInitial exploration was based on reports of poor accuracy from http://datascience.la/benchmarking-random-fores...
http://issues.apache.org/jira/browse/SPARK-13868    Author: Joseph K. Bradley , 2019-05-21, 04:14
[SPARK-21086] CrossValidator, TrainValidationSplit should preserve all models after fitting - Spark - [issue]
...I've heard multiple requests for having CrossValidatorModel and TrainValidationSplitModel preserve the full list of fitted models.  This sounds very valuable.One decision should be made...
http://issues.apache.org/jira/browse/SPARK-21086    Author: Joseph K. Bradley , 2019-05-21, 04:14
[SPARK-11520] RegressionMetrics should support instance weights - Spark - [issue]
...This will be important to improve LinearRegressionSummary, which currently has a mix of weighted and unweighted metrics....
http://issues.apache.org/jira/browse/SPARK-11520    Author: Joseph K. Bradley , 2019-05-21, 04:14