Hey all, Johannes in particular,
According to Medler: http://neuron-ai.tuke.sk/NCS/VOL1/P3_html/node28.html#SECTION000450000000000...
"...Consequently, more frequently occurring stimuli will be represented by larger areas in the map than infrequently occurring stimuli."
Which leads me to believe if you present a SOM with the same pattern, the number of nodes that fire should increase proportional to the frequency of the pattern.
Problem is I can make ann_som do that, not matter what rules I specify (using the regular decreasing learning rate).
If I send the same pattern to the som 10000 times, only one node will fire for that duration.
Am I misinterpreting the text?
Also by default does ann_som using time-seeded random numbers or regular random numbers? I ask because it appears the same node always wins at the start... (the biggest number).
Is there a FANN mailinglist for the discussion of such issues?
(http://leenissen.dk/fann/ is timing out for me.)
Thanks, B.