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Investigating the Suitability of FPAAs for Evolved Hardware Spiking Neural Networks

Patrick RockeContact Information, Brian McGinleyContact Information, John MaherContact Information, Fearghal MorganContact Information and Jim HarkinContact Information

(4)  BIRC Research Group, Dept. Electronic Engineering, NUI Galway, Ireland
(5)  Intelligent Systems Research Centre, Faculty of Engineering, University of Ulster, Magee Campus, Derry, Northern Ireland
Abstract
This paper investigates the use of a network of cascaded Field Programmable Analogue Arrays (FPAAs) to implement an evolved, analogue, Spiking Neural Network (SNN) pole balance controller. The SNN hardware platform interfaces to a simulated pole balancing model for evaluation. Performance of the evolved analogue hardware controller is compared to that of a software-based SNN controller. The evolved hardware network displays an improved tolerance to changing environments compared with networks evolved solely in simulation. The paper goes on to discuss the suitability of low density FPAA devices for analogue-centric hardware neural network platforms. It concludes by outlining some possible directions which address the observed limitations of using FPAAs for ANNs.

Keywords  FPAA Hardware Evolution - Spiking Neural Networks - Analogue Neural Networks


Contact Information Patrick Rocke
Email: patrick.rocke@nuigalway.ie

Contact Information Brian McGinley
Email: brian.mcginley@nuigalway.ie

Contact Information John Maher
Email: john.maher@nuigalway.ie

Contact Information Fearghal Morgan
Email: fearghal.morgan@nuigalway.ie

Contact Information Jim Harkin
Email: jg.harkin@ulster.ac.uk
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