Do you know: http://websom.hut.fi/websom/comp.ai.neural-nets-new/html/root.html ?
Interesting - is there any code avail to draw the maps?
The algorithm is described here; http://www.cis.hut.fi/research/som-research/book/
A short summary and some sample code is available here:
http://davis.wpi.edu/~matt/courses/soms/
Some more interesting papers about visualization is available at the text-mining.org community page.
http://www.text-mining.org/index.jsp?folderPK=793
Happy hacking! :-)
Stefan --------------------------------------------------------------- enterprise information technology consulting open technology: http://www.media-style.com open source: http://www.weta-group.net open discussion: http://www.text-mining.org
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