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https://issues.apache.org/jira/browse/MAHOUT-1192?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robin Anil updated MAHOUT-1192:
-------------------------------
Attachment: MAHOUT-1192.patch
Manhattan distance is sped up by almost 3x, and other immutable interfaces are
sped up by:
1) use of clone() instead of like().assign(this)
2) caching using lengthSquared() which is a cached length instead of calling
dotSelf directly.
> Speed up Vector Operations
> --------------------------
>
> Key: MAHOUT-1192
> URL: https://issues.apache.org/jira/browse/MAHOUT-1192
> Project: Mahout
> Issue Type: Improvement
> Reporter: Robin Anil
> Assignee: Robin Anil
> Attachments: MAHOUT-1192.patch
>
>
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