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https://issues.apache.org/jira/browse/MAHOUT-1167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13607616#comment-13607616
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Hudson commented on MAHOUT-1167:
--------------------------------
Integrated in Mahout-Quality #1912 (See
[https://builds.apache.org/job/Mahout-Quality/1912/])
MAHOUT-1167 Parallel item similarity precomputation on a single machine
(Revision 1458765)
Result = FAILURE
ssc : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1458765
Files :
*
/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/hadoop/similarity/item/ItemSimilarityJob.java
*
/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/hadoop/similarity/item/SimilarItem.java
*
/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/impl/similarity/precompute
*
/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/impl/similarity/precompute/FileSimilarItemsWriter.java
*
/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/impl/similarity/precompute/MultithreadedBatchItemSimilarities.java
*
/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/similarity/precompute
*
/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/similarity/precompute/BatchItemSimilarities.java
*
/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/similarity/precompute/SimilarItem.java
*
/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/similarity/precompute/SimilarItems.java
*
/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/similarity/precompute/SimilarItemsWriter.java
* /mahout/trunk/examples/src/main/java/org/apache/mahout/cf/taste/similarity
*
/mahout/trunk/examples/src/main/java/org/apache/mahout/cf/taste/similarity/precompute
*
/mahout/trunk/examples/src/main/java/org/apache/mahout/cf/taste/similarity/precompute/example
*
/mahout/trunk/examples/src/main/java/org/apache/mahout/cf/taste/similarity/precompute/example/BatchItemSimilaritiesGroupLens.java
> Parallel item similarity precomputation on a single machine
> -----------------------------------------------------------
>
> Key: MAHOUT-1167
> URL: https://issues.apache.org/jira/browse/MAHOUT-1167
> Project: Mahout
> Issue Type: New Feature
> Components: Collaborative Filtering
> Affects Versions: 0.8
> Reporter: Sebastian Schelter
> Assignee: Sebastian Schelter
> Attachments: MAHOUT-1167.patch
>
>
> We need some code for item-based CF usecases with an intermediate data size
> (e.g., a few million interactions). In such cases, the data might be too big
> to allow online computation of similarities and recommendations, but at the
> same time, going to Hadoop might still not be necessary and desired.
> In such a case, it makes sense to precompute item similarities on a single
> machine.
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