[R] SOM (Self-organizing map)
Uli Flenker; Raum 704
uli at biochem.dshs-koeln.de
Tue Oct 31 11:34:26 CET 2000
Do I remember correctly that SOMs are "self oraganizing maps" and are more
or less identical to Kohonen networks? As far as I know there is no R
package for that purpose.
A widely used - at least in Germany - neural network simulator is SNNS
(Stuttgarter Neuraonale Netze Simulator). Its available freely under a
GNU like license from a lot of german university servers. The people who
built it can be reached via <http://www.informatik.uni-stuttgart.de>.
You will find executables for several platforms as well as source code and
SNNS also is included in a number of Linux distributions. It is in SuSE
and it at least has been in DLD.
I used it some years ago and did not go beyond standard backpropagation
(which can be done in R using the nnet library included in VR). So I can't
tell you about the Kohonen capabilities. But its included in the simulator
Institute of Biochemistry
German Sports University Cologne
50933 Cologne / Germany
On Mon, 30 Oct 2000, Jun Yan wrote:
> Does anyone know of any SOM library for R? or any stand alone freeware?
> A search from google returns SOM_PAK 3.1 developed at Helsinki University
> of Technology. Is there newer version?
> r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
> Send "info", "help", or "[un]subscribe"
> (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch
More information about the R-help