Ted Dunning created MAHOUT-1368:
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Summary: Convert OnlineSummarizer to use the new TDigest
Key: MAHOUT-1368
URL: https://issues.apache.org/jira/browse/MAHOUT-1368
Project: Mahout
Issue Type: Bug
Reporter: Ted Dunning
Fix For: 0.9
The new TDigest provides better accuracy for quartile estimation as well as
producing any other quantile you might like. The current quartile estimation
of the OnlineSummarizer fails for highly skewed distributions and can't really
be extended to provide other quantiles. The TDigest handles all of this.
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