Internal representations

[LAI-WAN CHAN]

> I am interested in the internal representations developing in hidden
> units as a result of training with BP algorithm. I have done some

I have done experiments to find out the internal representations of the 
BP net [1].  I used some training sets and looked at their hidden nodes.
The hidden nodes showed particular arrangement (e.g. residing on a circle)
for some training patterns.  I did not include any results on the digit 
recognition but I found some hidden nodes have been trained to be 
responsible for some feature detection.


[1]  Analysis of the Internal Representations in Neural Networks for 
     Machine Intelligence, Lai-Wan CHAN, AAAI-91, Vol.2, p578-583, 1991.

Lai-Wan Chan,
Computer Science Dept,
The Chinese University of Hong Kong,
Shatin, N.T.,
Hong Kong.

email : lwchan at cucsd.cuhk.hk
tel :   (+852) 609 8865
FAX :   (+852) 603 5024