Recognition capabilities of a Hopfield model with auxiliary hidden neurons.

Benedetti, Marco; Dotsenko, Victor; Fischetti, Giulia; Marinari, Enzo; Oshanin, Gleb · Phys Rev E · 2021

basic_science · Level V

Where this comes from

Abstract

We study the recognition capabilities of the Hopfield model with auxiliary hidden layers, which emerge naturally upon a Hubbard-Stratonovich transformation. We show that the recognition capabilities of such a model at zero temperature outperform those of the original Hopfield model, due to a substantial increase of the storage capacity and the lack of a naturally defined basin of attraction. The modified model does not fall abruptly into the regime of complete confusion when memory load exceeds a sharp threshold. This latter circumstance, together with an increase of the storage capacity, renders such a modified Hopfield model a promising candidate for further research, with possible diverse applications.