Sigmoid neural transfer function realized by percolation.
An experiment using the phenomenon of percolation has been conducted to demonstrate the implementation of neural functionality (summing and sigmoid transfer). A simple analog approximation to digital percolation is implemented. The device consists of a piece of amorphous silicon with stochastic bit-stream optical inputs, in which a current percolating from one end to the other defines the neuron output, also in the form of a stochastic bit stream. Preliminary experimental results are presented.
D
D
Pignon
P J
PJ
Parmiter
J K
JK
Slack
M A
MA
Hands
T J
TJ
Hall
M
M
van Daalen
J
J
Shawe-Taylor