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GeoSOM is the attempt to adapt Self-Organizing Maps (SOM)
in order to consider the spatial nature of geographic data. This is
done by modifying the way that Best Matching Units (BMU)
are chosen; switching from an equal consideration of all variables, to
a more spatially centered one (x and y pares, for example). That means,
units (neurons)
that have similar cordinates to the
input data are more likely to be considered as BMUs.
Since GeoSOM is an adaptation of general SOM, it is possible to develop
the first, based on the later. In particular, the coding of GeoSOM
is based on the somtoolbox for Matlab, developed by
staff of the Laboratory of Information and Computer Science in the
Helsinki University of Technology.
Following the way of somtoolbox,GeoSOM
is open to
the use and contribution of the community.
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