Contacting us, Frequently Asked Questions


What do do about bugs...

Frequently asked questions

What is tlearn?
tlearn is a neural network simulator which implements the backpropagation of error algorithm. It allows users to construct feedforward or simple recurrent networks, and provides facilities for training, testing, analyzing networks.
What platforms does it run on?
tlearn runs on Macintosh (OS 7.5 or later), PCs running Windows 95, or any UNIX machine.
Can I get sources?
Sources are available from the FTP site listed on the main page. You are free to modify the code or incorporate parts of it into your own software,
subject to the limitations of the GNU General Public License (see below).
Is there a manual?
The book Exercises in Rethinking Innateness: A Handbook for Connectionist Simulations serves as the best manual for tlearn. The User Manual which is included as an Appendix is also available on-line by FTP (see Software link on main page).
Is tlearn copyrighted? Can I use it (or modify it) for my own purposes?
tlearn is copyrighted (or "copylefted", to use the term introduced by the Free Software Foundation) and is covered by the GNU General Public License. This means that it may be used, copied, modified, or redistributed for free. However, any redistribution (of the original or modified code) should adhere to the General Public Licence terms, and copies should acknowledge both the original authors and be sujbect to the terms of the GNU General Public License.

Contacting us

If you have a problem or want to report a bug...
Bugs should be reported to Steven Young. You can reach him by sending email to (or click on the address).
To contact the authors (not for bug reports)...
You can send email to Kim Plunkett as (or click), or to Jeff Elman as (or click).

What do do about bugs?

Our ability to support tlearn is limited, and we cannot guarantee that all bugs will be promptly fixed (although obviously it is in our interest to fix serious bugs which limit the simulator's usefulness. Bugs should be reported by sending email to Updates will be posted to this page, and found in the distribution directories listed below.

Page last updated on February 7, 1998. 
Web page questions or problems go to Jeff Elman