[
https://issues.apache.org/jira/browse/MAHOUT-899?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13158236#comment-13158236
]
Lance Norskog commented on MAHOUT-899:
--------------------------------------
Suggestion on sampling: use reservoir sampling instead of "first N". With a
fixed seed.
Other ideas:
* make edges directed based on distance from centroid. Given (n1, n2, e) and n1
is farther from the centroid than n2, make the edge point from n1 -> n2. This
creates a cool partial ordering.
* add node/edge weights based on whatever is appropriate in the algorithm.
* add node weight based on distance.
* if vectors are NamedVector add the name as a node attribute.
I find Gephi baffling, but I'm sure an expert would find these cool additions.
> Add Point Sampling, Color coding to ClusterDumper
> -------------------------------------------------
>
> Key: MAHOUT-899
> URL: https://issues.apache.org/jira/browse/MAHOUT-899
> Project: Mahout
> Issue Type: Improvement
> Components: Clustering, Integration
> Reporter: Grant Ingersoll
> Assignee: Grant Ingersoll
> Priority: Minor
> Fix For: 0.6
>
> Attachments: MAHOUT-899.patch
>
>
> When running the cluster dumper, or outputting values to a file for display
> purposes, it is useful to not have to deal with all the points per cluster.
> This issue will add the ability to specify a maximum number of points to
> output per cluster in the cluster dumper.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira