Title
Learning spatio-temporal patterns in the presence of input noise using phase-change memristors
Abstract
Neuromorphic systems increasingly attract research interest owing to their ability to provide biologically inspired methods of computing, alternative to the classic von Neumann architecture. In these systems, computing relies on spike-based communication between neurons, and memory is represented by evolving states of the synaptic interconnections. In this work, we first demonstrate how spike-timing-dependent plasticity (STDP) based synapses can be realized using the crystal-growth dynamics of phase-change memristors. Then, we present a novel learning architecture comprising an integrate-and-fire neuron and an array of phase-change synapses that is capable of detecting temporal correlations in parallel input streams. We demonstrate a continuous re-learning operation on a sequence of binary 20×20 pixel images in the presence of significant background noise. Experimental results using an array of phase-change cells as synaptic elements confirm the functionality and performance of the proposed learning architecture.
Year
DOI
Venue
2016
10.1109/ISCAS.2016.7527246
2016 IEEE International Symposium on Circuits and Systems (ISCAS)
Keywords
Field
DocType
synaptic elements,phase-change cell array,binary pixel image sequences,continuous re-learning operation,parallel input streams,temporal correlation detection,phase-change synapses array,integrate-and-fire neuron,learning architecture,crystal-growth dynamics,STDP based synapses,spike-timing-dependent plasticity,synaptic interconnections,spike-based communication,classic von Neumann architecture,biologically inspired methods,neuromorphic systems,phase-change memristors,input noise,spatio-temporal pattern learning
Memristor,Synapse,Background noise,Phase change,Computer science,Neuromorphic engineering,Electronic engineering,Pixel,Von Neumann architecture,Binary number
Conference
ISSN
ISBN
Citations 
0271-4302
978-1-4799-5342-4
4
PageRank 
References 
Authors
0.44
1
4
Name
Order
Citations
PageRank
Stanislaw Wozniak171.48
Tomas Tuma2414.61
Angeliki Pantazi37511.34
Evangelos Eleftheriou41590118.20