kohonen-som 0.0.1

PyTorch implementation of Kohonen's Self-Organizing Map.

Kohonen's Self-Organizing Map (SOM)

Background

The original paper written by Teuvo Kohonen in 1990 was one of the first neural network model capable of unsupervised learning.

Out of the different implementations of the algorithm, this one follows almost entirely the original paper. The update function is defined as

where

and is the current epoch.

Also, each neuron is connected to all the other ones, hence the map is a complete graph, where is the number of neurons.

Example