Sigmoid Neural Transfer Function Realised by Percolation

• Main Authors: Pignon, D. (Author), Parmiter, P.J.M (Author), Slack, J.K (Author), Hands, M.A (Author), Hall, T.J (Author), Daalen, M. (Author), Shawe-Taylor, J. (Author)
• Format: Article
• Language: English
• Published: 1996-02.
• Subjects: Article
• Online Access: Get fulltext

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.