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.
Pignon
D
D
Parmiter
P J
PJ
Slack
J K
JK
Hands
M A
MA
Hall
T J
TJ
van Daalen
M
M
Shawe-Taylor
J
J