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SOM codebook vectors output

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Johanna Torppa
Johanna Torppa on 24 Sep 2019
Edited: Adam on 24 Sep 2019
I am training SOM using the Deep Learning toolboxes train() function. How do I get out the SOM node vectors, i.e., the learned codebook vectors?

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Accepted Answer

Adam
Adam on 24 Sep 2019
Edited: Adam on 24 Sep 2019
net.IW{1}
will give you the codebook vectors/weights. For example:
x = simplecluster_dataset;
net = selforgmap([8 8]);
net = train( net, x );
net.IW{1}
It isn't the most intuitive to find the things you want in an SOM from the Deep Learning toolbox. I constantly forgot where all my parameters were when I used it. It uses the same network class as deep networks so there is a lot of stuff in there totally irrelevant to SOMs.

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