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Evolving spiking networks with variable resistive memories

Howard, Gerard; Bull, Larry; de Lacy Costello, Ben; Gale, Ella; Adamatzky, Andrew

Authors

Gerard Howard

Lawrence Bull Larry.Bull@uwe.ac.uk
AHOD Research and Scholarship and Prof

Ella Gale



Abstract

Neuromorphic computing is a brainlike information processing paradigm that requires adaptive learning mechanisms. A spiking neuro-evolutionary system is used for this purpose; plastic resistive memories are implemented as synapses in spiking neural networks. The evolutionary design process exploits parameter self-adaptation and allows the topology and synaptic weights to be evolved for each network in an autonomous manner. Variable resistive memories are the focus of this research; each synapse has its own conductance profile which modifies the plastic behaviour of the device and may be altered during evolution. These variable resistive networks are evaluated on a noisy robotic dynamic-reward scenario against two static resistive memories and a system containing standard connections only. The results indicate that the extra behavioural degrees of freedom available to the networks incorporating variable resistive memories enable them to outperform the comparative synapse types. © 2014 by the Massachusetts Institute of Technology.

Journal Article Type Letter
Publication Date Feb 13, 2014
Journal Evolutionary Computation
Print ISSN 1063-6560
Electronic ISSN 1530-9304
Publisher Massachusetts Institute of Technology Press (MIT Press)
Peer Reviewed Peer Reviewed
Volume 22
Issue 1
Pages 79-103
APA6 Citation Gale, E., Howard, G., Howard, G. D., Bull, L., de Lacy Costello, B., & Adamatzky, A. (2014). Evolving spiking networks with variable resistive memories. Evolutionary Computation, 22(1), 79-103. https://doi.org/10.1162/EVCO_a_00103
DOI https://doi.org/10.1162/EVCO_a_00103
Keywords genetic algorithms, neural networks, hebbian learning, memristors, nonvolatile memory, self-adaptation
Publisher URL http://dx.doi.org/10.1162/EVCO_a_00103
Additional Information Additional Information : (c) MIT Press 2014. http://www.mitpressjournals.org/toc/evco/22/1

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