Unsupervised ontogenic networks

In this section, network models are described which learn unsupervised and generate their topology during learning. Among the models described, one can distinguish those having a specific dimensionality (e.g. two or three) from models whose dimensionality varies locally with the input data. Furthermore, models with a fixed number of units but variable connectivity can be distinguished from models which also change their number of units through insertion and/or deletion. Application areas of the described models include vector quantization, data visualization and clustering. C2.4.

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