DTS-SNN: Spiking Neural Networks With Dynamic Time-Surfaces

Convolution helps spiking neural networks (SNNs) capture the spatio-temporal structures of neuromorphic (event) data as evident in the convolution-based SNNs (C-SNNs) with the state-of-the-art classification-accuracies on various datasets. However, the efficacy aside, the efficiency of C-SNN is ques...

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Main Authors: Donghyung Yoo, Doo Seok Jeong
Format: Article
Language:English
Published: IEEE 2022-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9903429/
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author Donghyung Yoo
Doo Seok Jeong
author_facet Donghyung Yoo
Doo Seok Jeong
author_sort Donghyung Yoo
collection DOAJ
description Convolution helps spiking neural networks (SNNs) capture the spatio-temporal structures of neuromorphic (event) data as evident in the convolution-based SNNs (C-SNNs) with the state-of-the-art classification-accuracies on various datasets. However, the efficacy aside, the efficiency of C-SNN is questionable. In this regard, we propose SNNs with novel trainable dynamic time-surfaces (DTS-SNNs) as efficient alternatives to convolution. The novel dynamic time-surface proposed in this work features its high responsiveness to moving objects given the use of the zero-sum temporal kernel that is motivated by the simple cells&#x2019; receptive fields in the early stage visual pathway. We evaluated the performance and computational complexity of our DTS-SNNs on three real-world event-based datasets (DVS128 Gesture, Spiking Heidelberg dataset, N-Cars). The results highlight high classification accuracies and significant improvements in computational efficiency, e.g., merely 1.51&#x0025; behind of the state-of-the-art result on DVS128 Gesture but a <inline-formula> <tex-math notation="LaTeX">$\times 18$ </tex-math></inline-formula> improvement in efficiency. The code is available online (<uri>https://github.com/dooseokjeong/DTS-SNN</uri>).
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spelling doaj.art-c1665df696ce4070bf5abcd5be5fb8372022-12-22T03:49:27ZengIEEEIEEE Access2169-35362022-01-011010265910266810.1109/ACCESS.2022.32096719903429DTS-SNN: Spiking Neural Networks With Dynamic Time-SurfacesDonghyung Yoo0https://orcid.org/0000-0003-0857-292XDoo Seok Jeong1https://orcid.org/0000-0001-7954-2213Division of Materials Science and Engineering, Hanyang University, Seoul, South KoreaDivision of Materials Science and Engineering, Hanyang University, Seoul, South KoreaConvolution helps spiking neural networks (SNNs) capture the spatio-temporal structures of neuromorphic (event) data as evident in the convolution-based SNNs (C-SNNs) with the state-of-the-art classification-accuracies on various datasets. However, the efficacy aside, the efficiency of C-SNN is questionable. In this regard, we propose SNNs with novel trainable dynamic time-surfaces (DTS-SNNs) as efficient alternatives to convolution. The novel dynamic time-surface proposed in this work features its high responsiveness to moving objects given the use of the zero-sum temporal kernel that is motivated by the simple cells&#x2019; receptive fields in the early stage visual pathway. We evaluated the performance and computational complexity of our DTS-SNNs on three real-world event-based datasets (DVS128 Gesture, Spiking Heidelberg dataset, N-Cars). The results highlight high classification accuracies and significant improvements in computational efficiency, e.g., merely 1.51&#x0025; behind of the state-of-the-art result on DVS128 Gesture but a <inline-formula> <tex-math notation="LaTeX">$\times 18$ </tex-math></inline-formula> improvement in efficiency. The code is available online (<uri>https://github.com/dooseokjeong/DTS-SNN</uri>).https://ieeexplore.ieee.org/document/9903429/Lightweight spiking neural networkspiking neural networkdynamic time-surfacesevent-based data
spellingShingle Donghyung Yoo
Doo Seok Jeong
DTS-SNN: Spiking Neural Networks With Dynamic Time-Surfaces
IEEE Access
Lightweight spiking neural network
spiking neural network
dynamic time-surfaces
event-based data
title DTS-SNN: Spiking Neural Networks With Dynamic Time-Surfaces
title_full DTS-SNN: Spiking Neural Networks With Dynamic Time-Surfaces
title_fullStr DTS-SNN: Spiking Neural Networks With Dynamic Time-Surfaces
title_full_unstemmed DTS-SNN: Spiking Neural Networks With Dynamic Time-Surfaces
title_short DTS-SNN: Spiking Neural Networks With Dynamic Time-Surfaces
title_sort dts snn spiking neural networks with dynamic time surfaces
topic Lightweight spiking neural network
spiking neural network
dynamic time-surfaces
event-based data
url https://ieeexplore.ieee.org/document/9903429/
work_keys_str_mv AT donghyungyoo dtssnnspikingneuralnetworkswithdynamictimesurfaces
AT dooseokjeong dtssnnspikingneuralnetworkswithdynamictimesurfaces