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https://issues.apache.org/jira/browse/MAHOUT-524?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13103497#comment-13103497
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Dan Brickley commented on MAHOUT-524:
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I had a look around, failed to find a string in the mahout java source
corresponding to that path; presume it's coming from an included module or
config file.
Hadoop btw has
./io/MapFile.java: public static final String DATA_FILE_NAME = "data";
though I don't see any direct use of MapFile or DATA_FILE_NAME, I'm only
grepping around textually; Eclipse might have smarter tooling.
http://lucene.472066.n3.nabble.com/Overhauled-org-apache-mahout-cf-taste-hadoop-item-td745286.html
suggests mapfile isn't so much used any more, so this might be a false lead.
> DisplaySpectralKMeans example fails
> -----------------------------------
>
> Key: MAHOUT-524
> URL: https://issues.apache.org/jira/browse/MAHOUT-524
> Project: Mahout
> Issue Type: Bug
> Components: Clustering
> Affects Versions: 0.4, 0.5
> Reporter: Jeff Eastman
> Assignee: Shannon Quinn
> Labels: clustering, k-means, visualization
> Fix For: 0.6
>
> Attachments: aff.txt, raw.txt, spectralkmeans.png
>
>
> I've committed a new display example that attempts to push the standard
> mixture of models data set through spectral k-means. After some tweaking of
> configuration arguments and a bug fix in EigenCleanupJob it runs spectral
> k-means to completion. The display example is expecting 2-d clustered points
> and the example is producing 5-d points. Additional I/O work is needed before
> this will play with the rest of the clustering algorithms.
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