[jira] [Updated] (SPARK-3727) Trees and ensembles: More prediction functionality

2018-06-13 Thread Joseph K. Bradley (JIRA)


 [ 
https://issues.apache.org/jira/browse/SPARK-3727?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Joseph K. Bradley updated SPARK-3727:
-
Shepherd:   (was: Joseph K. Bradley)

> Trees and ensembles: More prediction functionality
> --
>
> Key: SPARK-3727
> URL: https://issues.apache.org/jira/browse/SPARK-3727
> Project: Spark
>  Issue Type: Improvement
>  Components: MLlib
>Reporter: Joseph K. Bradley
>Priority: Major
>
> DecisionTree and RandomForest currently predict the most likely label for 
> classification and the mean for regression.  Other info about predictions 
> would be useful.
> For classification: estimated probability of each possible label
> For regression: variance of estimate
> RandomForest could also create aggregate predictions in multiple ways:
> * Predict mean or median value for regression.
> * Compute variance of estimates (across all trees) for both classification 
> and regression.



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[jira] [Updated] (SPARK-3727) Trees and ensembles: More prediction functionality

2015-08-19 Thread Joseph K. Bradley (JIRA)

 [ 
https://issues.apache.org/jira/browse/SPARK-3727?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Joseph K. Bradley updated SPARK-3727:
-
Shepherd: Joseph K. Bradley

 Trees and ensembles: More prediction functionality
 --

 Key: SPARK-3727
 URL: https://issues.apache.org/jira/browse/SPARK-3727
 Project: Spark
  Issue Type: Improvement
  Components: MLlib
Reporter: Joseph K. Bradley

 DecisionTree and RandomForest currently predict the most likely label for 
 classification and the mean for regression.  Other info about predictions 
 would be useful.
 For classification: estimated probability of each possible label
 For regression: variance of estimate
 RandomForest could also create aggregate predictions in multiple ways:
 * Predict mean or median value for regression.
 * Compute variance of estimates (across all trees) for both classification 
 and regression.



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[jira] [Updated] (SPARK-3727) Trees and ensembles: More prediction functionality

2015-04-13 Thread Joseph K. Bradley (JIRA)

 [ 
https://issues.apache.org/jira/browse/SPARK-3727?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Joseph K. Bradley updated SPARK-3727:
-
Summary: Trees and ensembles: More prediction functionality  (was: 
DecisionTree, RandomForest: More prediction functionality)

 Trees and ensembles: More prediction functionality
 --

 Key: SPARK-3727
 URL: https://issues.apache.org/jira/browse/SPARK-3727
 Project: Spark
  Issue Type: Improvement
  Components: MLlib
Reporter: Joseph K. Bradley

 DecisionTree and RandomForest currently predict the most likely label for 
 classification and the mean for regression.  Other info about predictions 
 would be useful.
 For classification: estimated probability of each possible label
 For regression: variance of estimate
 RandomForest could also create aggregate predictions in multiple ways:
 * Predict mean or median value for regression.
 * Compute variance of estimates (across all trees) for both classification 
 and regression.



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