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From "Grant Ingersoll (JIRA)" <>
Subject [jira] Commented: (MAHOUT-137) Convert Clustering Algs to use Vector Writable
Date Sun, 21 Jun 2009 15:42:07 GMT


Grant Ingersoll commented on MAHOUT-137:

bq. I find it a bit troubling that SparseVector.class must be specified explicit as the map
and job output types instead of just Vector.class

Agreed, but I was following your lead.

Sounds good on MS and Dirichlet

> Convert Clustering Algs to use Vector Writable
> ----------------------------------------------
>                 Key: MAHOUT-137
>                 URL:
>             Project: Mahout
>          Issue Type: Improvement
>            Reporter: Grant Ingersoll
>            Assignee: Grant Ingersoll
>             Fix For: 0.2
>         Attachments: MAHOUT-137.patch
> All M/R jobs should use Vector writable instead of encoding and decoding strings.  We
can have a separate utility that converts serialized GSON, Strings, whatever into the appropriate
vectors.  See MAHOUT-136 and

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