A decentralized training algorithm for Echo State Networks in distributed big data applications

Neural Networks : the Official Journal of the International Neural Network Society
Simone ScardapaneMassimo Panella

Abstract

The current big data deluge requires innovative solutions for performing efficient inference on large, heterogeneous amounts of information. Apart from the known challenges deriving from high volume and velocity, real-world big data applications may impose additional technological constraints, including the need for a fully decentralized training architecture. While several alternatives exist for training feed-forward neural networks in such a distributed setting, less attention has been devoted to the case of decentralized training of recurrent neural networks (RNNs). In this paper, we propose such an algorithm for a class of RNNs known as Echo State Networks. The algorithm is based on the well-known Alternating Direction Method of Multipliers optimization procedure. It is formulated only in terms of local exchanges between neighboring agents, without reliance on a coordinating node. Additionally, it does not require the communication of training patterns, which is a crucial component in realistic big data implementations. Experimental results on large scale artificial datasets show that it compares favorably with a fully centralized implementation, in terms of speed, efficiency and generalization accuracy.

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Citations

Sep 29, 2015·Neural Networks : the Official Journal of the International Neural Network Society·Filippo Maria BianchiAlireza Sadeghian
May 18, 2016·Neural Networks : the Official Journal of the International Neural Network Society·Simone ScardapaneAurelio Uncini
Jul 21, 2016·Medical & Biological Engineering & Computing·Rosa AltilioMassimo Panella
Feb 5, 2019··Zhenkun ZhangXiaoping Liao

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