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From "Dmitriy Lyubimov (JIRA)" <j...@apache.org>
Subject [jira] Created: (MAHOUT-623) Bug/improvement: add "overwrite" option to Stochastic SVD command line and API
Date Thu, 10 Mar 2011 23:59:59 GMT
Bug/improvement: add "overwrite" option to Stochastic SVD command line and API
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                 Key: MAHOUT-623
                 URL: https://issues.apache.org/jira/browse/MAHOUT-623
             Project: Mahout
          Issue Type: Improvement
          Components: Math
    Affects Versions: 0.4
            Reporter: Dmitriy Lyubimov
            Assignee: Dmitriy Lyubimov
            Priority: Trivial
             Fix For: 0.5


I actually stumbled on the fact that SSVD code doesn't have 'overwrite results' option. Which
might not be not a big deal if it weren't for the fact that it also turns out to be the default
behavior as well (i.e. by default it would overwrite target path if it already exists). Which
promotes it to a verge of a bug. 

I think i need to attend to it by introducing overwrite option and disabling this by default.
(i.e. by default it would fail if the output path already exists). I think this is consistent
with some other CLI in Mahout I saw.

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