sam wu created MAHOUT-1313:
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Summary: RowSimilarityJob, sampleDown method problem
Key: MAHOUT-1313
URL: https://issues.apache.org/jira/browse/MAHOUT-1313
Project: Mahout
Issue Type: Bug
Components: Collaborative Filtering
Affects Versions: 0.9
Reporter: sam wu
Assignee: Sean Owen
Priority: Minor
RowSimilarityJob.java , sampleDown method
----line 291 or 300
double rowSampleRate = Math.min(maxObservationsPerRow, observationsPerRow) /
observationsPerRow;
currently always return either 0.0 or 1.0.
Should return true double, eg: 0.34,...
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