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Search criteria: ClusterEvaluator.
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Re: Clustering points in a unit hypercube - Mahout - [mail # user]
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...IN order to succeed here, SKM will need to have maxClusters set to 20,000 or so. The maximum distance between clusters on a 10d hypercube is sqrt(10) = 3.1 or so. If three clusters get...
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Author: Ted Dunning,
2012-12-05, 23:32
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Re: Clustering points in a unit hypercube - Mahout - [mail # user]
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...Yeah... very useful. Clearly the adaptive limit on the number of surrogate points is much too restrictive. On Fri, Dec 7, 2012 at 1:21 AM, Dan Filimon wrote: ...
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Author: Ted Dunning,
2012-12-07, 01:06
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Re: Clustering points in a unit hypercube - Mahout - [mail # user]
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...Still not that odd if several clusters are getting squashed. This can happen if the threshold increases too high or if the searcher is unable to resolve the cube properly. By its nature...
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Author: Ted Dunning,
2012-12-06, 00:01
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Re: Clustering points in a unit hypercube - Mahout - [mail # user]
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...Ahh... this may also be a problem. You should get better results with a Brute searcher here, but a ProjectionSearcher with lots of projections may work well. On Thu, Dec 6, 2012 ...
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Author: Ted Dunning,
2012-12-05, 23:34
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Re: Problems with KMeans Clustering - Radius calculation returns incorrect ZERO value in some cases. - Mahout - [mail # user]
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...Also, if only a single point is assigned to the cluster, the radius of the cluster is, by definition, zero. That isn't a bug. On Wed, May 15, 2013 at 10:15 AM, Jeff Eastman wrote: ...
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Author: Ted Dunning,
2013-05-16, 01:05
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Re: Visualization of word clusters - Mahout - [mail # user]
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...Here is some pretty old work that did the same sort of thing. The self organizing map (SOM) is an interesting alternative to MDS since it allows mapping a low dimensional approximate m...
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Author: Ted Dunning,
2012-08-27, 22:36
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Re: Build failed in Jenkins: Mahout-Examples-Cluster-Reuters-II #478 - Mahout - [mail # dev]
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...Yeah.. The solaris slave has real problems. We might want ot restrict that job to ubuntu On Sun, May 12, 2013 at 1:51 PM, Stevo Slavić wrote: ...
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Author: Ted Dunning,
2013-05-12, 21:00
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Re: Item Based Recommendation Evaluation based on Number of Preferences - Mahout - [mail # user]
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...This may not be a great idea. Remember that a real recommend exists in a closed loop. As such, incorporating iffy recommendations is often a good thing since it helps the system ...
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Author: Ted Dunning,
2012-01-04, 15:34
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Re: clustering updates - Mahout - [mail # dev]
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...OK. I will start moving stuff in. On Fri, Aug 17, 2012 at 12:46 PM, Jason Thomas wrote: ...
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Author: Ted Dunning,
2012-08-17, 20:16
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Re: [jira] [Commented] (MAHOUT-1206) Add density-based clustering algorithms to mahout - Mahout - [mail # dev]
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...On Wed, May 8, 2013 at 2:33 PM, yu lee wrote: Define distance in SVD space based on how people move. Next problem?...
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Author: Ted Dunning,
2013-05-09, 02:31
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