T. Kohonen
Kohonen

    A researcher at the University of Helsinki who has
   been studying neural networks for many years with the idea
   of modelling as closely as possible the behaviour of
   biological systems.  His name is commonly associated with a
   particular kind of neural network in which there are only two
   kinds of neurons (see McCulloch-Pitts), input and others.
   All the input neurons are connected to all others and the
   others are connected only to their other nearest neighbors.
   The training algorithm is a relatively simple one based on
   the geometric layout of the neurons, and makes use of
   simulated annealing.

   (1994-10-19)