[MAHOUT-1878] implement quartile type thresholds for indicator matrix downsampling

• Type: New Feature
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Fix Version/s: 1.0.0
• Component/s: Collaborative Filtering, cooccurrence
• Assignee: Pat Ferrel
• Reporter: Pat Ferrel
• Created: 21/Aug/16 01:01
• Updated: 03/Mar/18 21:29

Description

https://issues.apache.org/jira/browse/MAHOUT-1853

second half of the above, see discussion of downsampling by fraction of matrix retained, perhaps using t-digest.

Issue Links

• is related to: MAHOUT-1853 Improvements to CCO (Correlated Cross-Occurrence)