This page is an unofficial LVQ/SOM_PAK homepage! The official page is
Neural Networks Research Centre
Public domain program packages
An anonymous ftp cite
contains two public-domain program packages,
for the Self-Organizing Map algorithm and
for the Learning Vector Quantization algorithms. These program
packages have been developed to demonstrate the implementation of
these algorithms and to ease first experiments.
The anonymous ftp cite contains also
a list of references
to papers, where either the SOM or LVQ algorithm has been used.
The current version of the SOM_PAK and LVQ_PAK is
version 3.1 and the packages are available via our
More information is available here about the following topics:
Questions and comments about the packages should be mailed to
- Version 3.2 (unofficial) released
March 25th, 1997
- Hopefully helps for the segfaults some people get from 3.1
- Version 3.1 released April 7th, 1995
- Contains only a bug fix in random ordering.
- Version 3.0 released March 1st, 1995
- Version 3.0 containing new programs for the visualization of
results and many advanced features conserning application of the
algorithms in large problems was released March 1, 1995.
The fine print: This is an unofficial
SOM/LVQ_PAK homepage maintained by Jussi
Hynninen, who did most of the work for versions 3.x. Opinions
expressed here do not necessarily represent the views of the
Neural Networks Research Centre. Some
assembly required. Batteries not included. Your mileage may vary. All
models over 18 years of age, etc...