[SPARK-9612] Add instance weight support for GBTs

• Type: New Feature
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Component/s: ML
• Labels: bulk-closed
• Assignee: Ruifeng Zheng
• Reporter: Joseph K. Bradley
• Created: 04/Aug/15 20:30
• Updated: 06/Jan/20 02:08
• Resolved: 25/Oct/19 08:52

Description

GBT support for instance weights could be handled by:

• sampling data before passing it to trees
• passing weights to trees (requiring weight support for trees first, but probably better in the end)

Issue Links

• is blocked by: SPARK-19591 Add sample weights to decision trees
• Is contained by: SPARK-14047 GBT improvement umbrella
• relates to: SPARK-9610 Class and instance weighting for ML
• links to: GitHub Pull Request #25926
• links to: GitHub Pull Request #27070