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From "Suneel Marthi (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAHOUT-1052) Add an option to MinHashDriver that specifies the dimension of vector to hash (indexes or values)
Date Mon, 03 Jun 2013 18:21:20 GMT

     [ https://issues.apache.org/jira/browse/MAHOUT-1052?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Suneel Marthi updated MAHOUT-1052:
----------------------------------

    Attachment: MAHOUT-1052.patch
    
> Add an option to MinHashDriver that specifies the dimension of vector to hash (indexes
or values)
> -------------------------------------------------------------------------------------------------
>
>                 Key: MAHOUT-1052
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1052
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Clustering
>    Affects Versions: 0.6
>            Reporter: Elena Smirnova
>            Assignee: Suneel Marthi
>            Priority: Minor
>              Labels: minhash
>             Fix For: Backlog
>
>         Attachments: MAHOUT-1052.patch, MAHOUT-1052.patch
>
>
> Add a parameter to MinHash clustering that specifies the dimension of vector to hash
(indexes or values). Current version of MinHash clustering only hashed values of vectors.
Based on discussion on dev-mahout list, both of the use-cases are possible and frequently
met in practice. 
> Preserve backward compatibility with default dimension set to values. Add new unit tests.

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