Reservoir Size, Spectral Radius and Connectivity in Static Classification Problems

Authors:
Luís A. Alexandre;Mark J. Embrechts
Affiliations:
Department of Informatics, University of Beira Interior and IT - Instituto de Telecomunicações, Covilhã, Portugal;Rensselaer Polytechnic Institute - Decision Sciences and Engineering Systems CII 5219, Troy, USA 12180
Venue:
ICANN '09 Proceedings of the 19th International Conference on Artificial Neural Networks: Part I
Year:
2009

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Abstract

Reservoir computing is a recent paradigm that has proved to be quite effective given the classical difficulty in training recurrent neural networks. An approach to using reservoir recurrent neural networks has been recently proposed for static problems and in this paper we look at the influence of the reservoir size, spectral radius and connectivity on the classification error in these problems. The main conclusion derived from the performed experiments is that only the size of the reservoir is relevant with the spectral radius and the connectivity of the reservoir not affecting the classification performance.