GenericUserPreferenceArray and GenericItemPreferenceArray use selection sorts
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Key: MAHOUT-963
URL: https://issues.apache.org/jira/browse/MAHOUT-963
Project: Mahout
Issue Type: Bug
Components: Collaborative Filtering
Affects Versions: 0.6
Reporter: Bryce Nyeggen
Assignee: Sean Owen
Fix For: 0.6
Both PreferenceArray implementations use selection sorts with poor performance.
These sorts are invoked during construction of GenericDataModels, causing
excessive construction time.
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