A training algorithm for networks of high-variability reservoirs

Autor: Joni Dambre, Matthias Freiberger, Peter Bienstman
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: SCIENTIFIC REPORTS
Scientific Reports
Scientific Reports, Vol 10, Iss 1, Pp 1-11 (2020)
ISSN: 2045-2322
Popis: Physical reservoir computing approaches have gained increased attention in recent years due to their potential for low-energy high-performance computing. Despite recent successes, there are bounds to what one can achieve simply by making physical reservoirs larger. Therefore, we argue that a switch from single-reservoir computing to multi-reservoir and even deep physical reservoir computing is desirable. Given that error backpropagation cannot be used directly to train a large class of multi-reservoir systems, we propose an alternative framework that combines the power of backpropagation with the speed and simplicity of classic training algorithms. In this work we report our findings on a conducted experiment to evaluate the general feasibility of our approach. We train a network of 3 Echo State Networks to perform the well-known NARMA-10 task, where we use intermediate targets derived through backpropagation. Our results indicate that our proposed method is well-suited to train multi-reservoir systems in an efficient way.
Databáze: OpenAIRE