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Sammon mapping of the SOM

Figure 5.5: Sammon mapping of the SOM

Sammon's mapping is used to visualize the relative distances between the codebook vectors of the SOM. As the SOM approximates the probability density function to some extent, there are a lot a codebook vectors, where the data is dense. This can be seen in the Figure 5.5.

Jaakko Hollmen
Fri Mar 8 13:44:32 EET 1996