Pat Ferrel created MAHOUT-1878:
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Summary: implement quartile type thresholds for indicator matrix
downsampling
Key: MAHOUT-1878
URL: https://issues.apache.org/jira/browse/MAHOUT-1878
Project: Mahout
Issue Type: New Feature
Components: Collaborative Filtering, cooccurrence
Reporter: Pat Ferrel
Assignee: Pat Ferrel
Fix For: 1.0.0
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.
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