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https://issues.apache.org/jira/browse/MAHOUT-344?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12851686#action_12851686
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Drew Farris commented on MAHOUT-344:
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Hi Cristi,
Sounds like a great start. Answers for a couple of your questions:
{quote}
Is there a standard formatting for the input on each clustering alg or the
input format follows the same rules for all algorithms, and then the users
write conversion tools which ?
{quote}
Take a look at the various Vector clases in the math module and the
VectorWritable wrapper. Most of the clustering algorithms take vectors of one
kind or another as input and the assumption is that users will write tools to
convert their data to these common formats. The wiki page
http://cwiki.apache.org/MAHOUT/creating-vectors-from-text.html is a good place
to start
{quote}
would it be ok if I attach the code which does an example of running min-hash
clustering in the examples dirs ? (it would first convert the dataset format
accordingly)
{quote}
Go for it, code is good, patches are even better, see:
http://cwiki.apache.org/MAHOUT/howtocontribute.html#HowToContribute-Creatingthepatchfile
and simply attach it to this issue.
> Minhash based clustering
> -------------------------
>
> Key: MAHOUT-344
> URL: https://issues.apache.org/jira/browse/MAHOUT-344
> Project: Mahout
> Issue Type: Bug
> Components: Clustering
> Affects Versions: 0.3
> Reporter: Ankur
> Assignee: Ankur
> Attachments: MAHOUT-344-v1.patch
>
>
> Minhash clustering performs probabilistic dimension reduction of high
> dimensional data. The essence of the technique is to hash each item using
> multiple independent hash functions such that the probability of collision of
> similar items is higher. Multiple such hash tables can then be constructed
> to answer near neighbor type of queries efficiently.
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