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MathGroup Archive 2012

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Re: Clustering algorithm Mathematica 7

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  • Subject: [mg129110] Re: Clustering algorithm Mathematica 7
  • From: martin.lottner at gmail.com
  • Date: Sun, 16 Dec 2012 01:06:24 -0500 (EST)
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Hi,

I have started using the clustering methods in Mathematica 9 and I'd like to know whether the "FindClusters" function with the "optimization" method still uses k medoids in Version 9. Could you please specify on which methods/publications the initial seed choice is based? (The documentation states that the algorithm "starts by building a set of k representative objects")
What lies behind the "KMeans" option in ClusterComponents? Is this just an implementation of the naked k means algorithm with a random choice of initial seeds or is there some seed selection process involved as a first step?
Thanks very much,

Martin

Martin Lottner
Technische Universit=E4t M=FCnchen
Department of Physics
James-Franck-Str. 1
85748 Garching
Germany



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