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https://issues.apache.org/jira/browse/MAHOUT-552?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12945550#action_12945550
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Lance Norskog commented on MAHOUT-552:
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bq. Ultimately, the solution was a named vector and named matrix that wraps an
ordinary matrix. This avoids forcing a tax on all implementations, but gives
the flexibility to use named objects.
NamedVector is a subclass and not a wrapper, and NamedMatrix does not exist,
Matrix has bindings directly.
Yes, label & binding transmission is application-dependent.
> AbstractCluster eliminates NamedVectors by replacing them with
> RandomAccessSparseVector always
> ----------------------------------------------------------------------------------------------
>
> Key: MAHOUT-552
> URL: https://issues.apache.org/jira/browse/MAHOUT-552
> Project: Mahout
> Issue Type: Bug
> Components: Clustering
> Affects Versions: 0.5
> Reporter: Pere Ferrera Bertran
> Assignee: Jeff Eastman
> Fix For: 0.5
>
> Attachments: MAHOUT-552.patch
>
>
> When clustering using NamedVectors as input - after running seq2sparse with
> patch https://issues.apache.org/jira/browse/MAHOUT-401 - names are lost
> because AbstractCluster replaces vectors coming in the constructor with
> RandomAccessSparseVector.
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