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arXiv · 1505.04357

Evolving Spiking Networks with Variable Resistive Memories

Gerard David Howard·Larry Bull·Ben de Lacy Costello·Andrew Adamatzky·Ella Gale
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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. 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.

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Gerard David Howard, Larry Bull, Ben de Lacy Costello, Andrew Adamatzky, Ella Gale. 2015-05-17. Evolving Spiking Networks with Variable Resistive Memories. https://doi.org/10.1162/evco_a_00103

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