Influence of interconnection weight discretization and noise in an optoelectronic neural network
A. Von Lehmen, Eung Gi Paek, Po-Jui Liao, Abdellatif Marrakchi, Jayantilal S. Patel · Optics Letters · 1989
The effect of discretizing interconnection weight strengths in an optoelectronic learning neural network based on the backpropagation algorithm is investigated. We discuss how discretization arises in such an implementation. Using computer simulations we find that learning performance, as tested on the two-input XOR problem, is poor but that the addition of noise to the system results in substantial improvement.