[jira] [Assigned] (MAHOUT-1009) Remove old LDA implementation from codebase

["Grant Ingersoll (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MAHOUT-1009?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Grant Ingersoll reassigned MAHOUT-1009:
---------------------------------------

    Assignee: Sebastian Schelter  (was: Jake Mannix)

Sebastian is working on this
                
> Remove old LDA implementation from codebase
> -------------------------------------------
>
>                 Key: MAHOUT-1009
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1009
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Clustering
>    Affects Versions: 0.7
>            Reporter: Jake Mannix
>            Assignee: Sebastian Schelter
>            Priority: Minor
>             Fix For: 0.7
>
>
> The old LDA is unmaintained and unsupported.  We already (since 0.6) have a newer, faster version in the o.a.m.clustering.lda.cvb package, which I'm actively working on and using in production at Twitter.  We should delete the old o.a.m.clustering.lda codebase.
> Normally, I'd say that we should at the same time promote o.a.m.clustering.lda.cvb up a package-level, but that would cause some serious merge conflicts on my GitHub branch (with updates/improvements/new features targetted for 0.8), so we can get users on this new code by simply changing the driver.classes.props to have "lda" point to CVB0Driver as the main().
> One thing which goes away entirely, is the LDAPrintTopics class, but it's replaced by simply doing VectorDumper with the -sort option on the model files, which is more standard anyways.

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