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https://issues.apache.org/jira/browse/MAHOUT-460?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sebastian Schelter updated MAHOUT-460:
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Attachment: MAHOUT-460-2.patch
> Add "maxPreferencesPerItemConsidered" option to
> o.a.m.cf.taste.hadoop.similarity.item.ItemSimilarityJob
> -------------------------------------------------------------------------------------------------------
>
> Key: MAHOUT-460
> URL: https://issues.apache.org/jira/browse/MAHOUT-460
> Project: Mahout
> Issue Type: Improvement
> Components: Collaborative Filtering
> Reporter: Sebastian Schelter
> Attachments: MAHOUT-460-2.patch, MAHOUT-460.patch
>
>
> Because "coocurrence algorithms ... scale in the square of the number of
> occurrences most popular item" (Ted wrote that in a recent mail) we should
> offer a parameter to the ItemSimilarity job that makes it limit the number of
> considered preferences per item. RecommenderJob already has such an option.
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