How is the winning neuron selected by the NEWSOM function within Neural Network Toolbox?
I would like to know how the winning neuron is selected by the NEWSOM function within Neural Network Toolbox.
ANSWER
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The NEWSOM function is used to obtain a self-organizing network.
The syntax for this function is as follows:
net = newsom(PR,[d1,d2,...],tfcn,dfcn,olr,osteps,tlr,tns)Description Competitive layers are used to solve classification problems. NET = NEWSOM(PR,[D1,D2,...],TFCN,DFCN,OLR,OSTEPS,TLR,TNS) takes, PR - Rx2 matrix of min and max values for R input elements. Di - Size of ith layer dimension, defaults = [5 8]. TFCN - Topology function, default = 'hextop'. DFCN - Distance function, default = 'linkdist'. OLR - Ordering phase learning rate, default = 0.9. OSTEPS - Ordering phase steps, default = 1000. TLR - Tuning phase learning rate, default = 0.02; TND - Tuning phase neighborhood distance, default = 1. and returns a new self-organizing map.
How the winning neuron is selected:
When an input topology is presented to a SOM network,
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