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Optics Letters

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  • Vol. 21, Iss. 3 — Feb. 1, 1996
  • pp: 222–224

Sigmoid neural transfer function realized by percolation

D. Pignon, P. J. M. Parmiter, J. K. Slack, M. A. Hands, T. J. Hall, M. van Daalen, and J. Shawe-Taylor  »View Author Affiliations


Optics Letters, Vol. 21, Issue 3, pp. 222-224 (1996)
http://dx.doi.org/10.1364/OL.21.000222


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Abstract

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.

© 1996 Optical Society of America

History
Original Manuscript: September 12, 1995
Published: February 1, 1996

Citation
D. Pignon, M. van Daalen, J. Shawe-Taylor, P. J. M. Parmiter, J. K. Slack, M. A. Hands, and T. J. Hall, "Sigmoid neural transfer function realized by percolation," Opt. Lett. 21, 222-224 (1996)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-21-3-222


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References

  1. J. Shawe-Taylor, P. Jeavons, M. van Daalen, Connect. Sci. 3, 317 (1991). [CrossRef]
  2. T. J. Hall, M. van Daalen, UK patent application9420449.2 (October11, 1994).
  3. D. Pignon, T. J. Hall, “A quantised optical neural network with on-line learning,” submitted toInt. J. Optoelectron.
  4. A. G. Kirk, S. Jamieson, H. Imam, T. J. Hall, Opt. Comput. Process. 2, 293 (1992).
  5. P. K. Simpson, Artificial Neural Systems (Pergamon, Oxford, 1990).
  6. T. J. Hall, W. Peiffer, M. Hands, H. Thienpont, W. A. Crossland, J. S. Shawe-Taylor, M. van Daalen, in Optical Computing, Vol. 10 of 1995 OSA Technical Digest Series (Optical Society of America, Washington D.C., 1995), p. 210.
  7. D. Stauffer, A. Aharony, Introduction to Percolation Theory (Taylor & Francis, London, 1992).

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