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https://issues.apache.org/jira/browse/MAHOUT-277?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12830782#action_12830782
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Sean Owen commented on MAHOUT-277:
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Seems fine to commit. I feel that JIRA issues should have defined end points,
so rather than keep this open (especially as its marked as blocking 0.3) I'd
say reopen a new issue later if you think of more changes.
> Increase number of entries in memory per chunk of dictionary
> -------------------------------------------------------------
>
> Key: MAHOUT-277
> URL: https://issues.apache.org/jira/browse/MAHOUT-277
> Project: Mahout
> Issue Type: Improvement
> Components: Utils
> Affects Versions: 0.3
> Reporter: Robin Anil
> Assignee: Robin Anil
> Fix For: 0.3
>
> Attachments: MAHOUT-277.patch
>
>
> Java HashMap was having a huge overhead that was decreasing the number of
> entries per chunk hence increases number of passes over the data
> Dictionary was using Text,LongWritable key. Integer is enough to keep the
> feature ids.
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