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Posted to dev@mahout.apache.org by "Remi Melisson (Updated) (JIRA)" <ji...@apache.org> on 2011/12/05 18:08:39 UTC
[jira] [Updated] (MAHOUT-902) TanimotoCoefficientSimilarity should
return Double.NaN for two items that have zero overlap
[ https://issues.apache.org/jira/browse/MAHOUT-902?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Remi Melisson updated MAHOUT-902:
---------------------------------
Status: Patch Available (was: Open)
A small patch for this issue, with the corresponding test case.
Hope it's ok.
> TanimotoCoefficientSimilarity should return Double.NaN for two items that have zero overlap
> -------------------------------------------------------------------------------------------
>
> Key: MAHOUT-902
> URL: https://issues.apache.org/jira/browse/MAHOUT-902
> Project: Mahout
> Issue Type: Improvement
> Components: Collaborative Filtering
> Affects Versions: 0.6
> Reporter: Sebastian Schelter
> Labels: MAHOUT_INTRO_CONTRIBUTE
> Attachments: MAHOUT-902.patch
>
>
> org.apache.mahout.cf.taste.impl.similarity.TanimotoCoefficientSimilarity should return Double.NaN for two items that have zero overlap. Please also provide a unit-test for this.
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