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Object visualization:

The SOM can also be used to highlight selected features of data items. This is done by assigning a colour to each unit of the map either automatically [27] or by hand [14]. Each point of the object is then coloured with the colour associated with its BMU. This visualizes effectively similarities between data items.

Juha Vesanto
Tue May 27 12:40:37 EET DST 1997