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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 31, Iss. 17 — Jun. 10, 1992
  • pp: 3285–3288

Local learning algorithm for optical neural networks

Yong Qiao and Demetri Psaltis  »View Author Affiliations


Applied Optics, Vol. 31, Issue 17, pp. 3285-3288 (1992)
http://dx.doi.org/10.1364/AO.31.003285


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Abstract

An anti-Hebbian local learning algorithm for two-layer optical neural networks is introduced. With this learning rule, the weight update for a certain connection depends only on the input and output of that connection and a global, scalar error signal. Therefore the backpropagation of error signals through the network, as required by the commonly used back error propagation algorithm, is avoided. It still guarantees, however, that the synaptic weights are updated in the error descent direction. With the apparent advantage of simpler optical implementation this learning rule is also shown by simulations to be computationally effective.

© 1992 Optical Society of America

History
Original Manuscript: September 30, 1991
Published: June 10, 1992

Citation
Yong Qiao and Demetri Psaltis, "Local learning algorithm for optical neural networks," Appl. Opt. 31, 3285-3288 (1992)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-31-17-3285


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References

  1. D. E. Rumelhart, G. E. Hinton, R. J. Williams, in Parallel Distributed Processing, D. E. Rumelhart, J. L. McClelland, eds. (MIT Press, Cambridge, Mass., 1986), Vol. 1, pp. 318–362.
  2. K. Wagner, D. Psaltis, “Multilayer optical learning networks,” Appl. Opt. 26, 5061–5076 (1987). [CrossRef] [PubMed]
  3. D. Psaltis, D. Brady, K. Wagner, “Adaptive optical networks using photorefractive crystals,” Appl. Opt. 27, 1752–1759 (1988). [CrossRef]
  4. T. Grossman, R. Meir, E. Domany, “Learning by choice of internal representations,” Complex Syst. 2, 555–575 (1988).
  5. J. J. Hopfield, “Learning algorithms and probability distributions in feed-forward and feed-back networks,” Proc. Natl. Acad. Sci. USA 84, 8429–8433 (1987). [CrossRef] [PubMed]
  6. S. A. Solla, E. Levin, M. Fleisher, “Accelerated learning in layered neural networks,” Complex Syst. 2, 625–640 (1988).

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