Leaky Integrate‐and‐Fire Neuron Based on Organic Electrochemical Transistor for Spiking Neural Networks with Temporal‐Coding

Abstract Spiking neural networks (SNNs) employ discrete spikes that mimic the firing of neurons in biological systems to process and transmit information. This characteristic enables SNNs to effectively capture temporal dynamics and capitalize on the time information inherent in time‐varying inputs,...

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Main Authors: Yuanyuan Zhu, Xiang Wan, Jie Yan, Li Zhu, Run Li, Cheeleong Tan, Zhihao Yu, Liuyang Sun, Shanchen Yan, Yong Xu, Huabin Sun
Format: Article
Language:English
Published: Wiley-VCH 2024-03-01
Series:Advanced Electronic Materials
Subjects:
Online Access:https://doi.org/10.1002/aelm.202300565
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author Yuanyuan Zhu
Xiang Wan
Jie Yan
Li Zhu
Run Li
Cheeleong Tan
Zhihao Yu
Liuyang Sun
Shanchen Yan
Yong Xu
Huabin Sun
author_facet Yuanyuan Zhu
Xiang Wan
Jie Yan
Li Zhu
Run Li
Cheeleong Tan
Zhihao Yu
Liuyang Sun
Shanchen Yan
Yong Xu
Huabin Sun
author_sort Yuanyuan Zhu
collection DOAJ
description Abstract Spiking neural networks (SNNs) employ discrete spikes that mimic the firing of neurons in biological systems to process and transmit information. This characteristic enables SNNs to effectively capture temporal dynamics and capitalize on the time information inherent in time‐varying inputs, such as motion, audio/video streams, and other sequential data. Currently, most hardware implementations of SNNs are designed to use rate‐coding, where information is encoded in the rate of spikes. However, it still remains challenging for the hardware implementation of temporal coding in SNNs, which allows for higher input sparsity and exploits additional dimensions such as precise spike timing and relative spike timings. This study presents hardware implementations of SNNs constructed by organic electrochemical transistors (OECTs), processing temporal‐coded information. The protic dynamics in response to electrical stimuli enable the emulation of temporal integration, reset, and leaking of membrane potential in a simple leaky integrate‐and‐fire (LIF) neuron circuit. By utilizing these features, the emulated LIF neuron can be employed to construct SNNs capable of processing temporal‐coded information in complex tasks including coincidence detection and dynamic handwriting recognition, exhibiting high performance and good tolerance even when dealing with noisy datasets.
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spelling doaj.art-411ef4c42399447f9ccaded421d1f13a2024-03-07T15:46:04ZengWiley-VCHAdvanced Electronic Materials2199-160X2024-03-01103n/an/a10.1002/aelm.202300565Leaky Integrate‐and‐Fire Neuron Based on Organic Electrochemical Transistor for Spiking Neural Networks with Temporal‐CodingYuanyuan Zhu0Xiang Wan1Jie Yan2Li Zhu3Run Li4Cheeleong Tan5Zhihao Yu6Liuyang Sun7Shanchen Yan8Yong Xu9Huabin Sun10School of Integrated Circuit Science and EngineeringNanjing University of Posts and TelecommunicationsNanjing 210023 ChinaSchool of Integrated Circuit Science and EngineeringNanjing University of Posts and TelecommunicationsNanjing 210023 ChinaSchool of Integrated Circuit Science and EngineeringNanjing University of Posts and TelecommunicationsNanjing 210023 ChinaSchool of Integrated Circuit Science and EngineeringNanjing University of Posts and TelecommunicationsNanjing 210023 ChinaGuangdong Greater Bay Area Institute of Integrated Circuit and System Guangzhou 510535 ChinaSchool of Integrated Circuit Science and EngineeringNanjing University of Posts and TelecommunicationsNanjing 210023 ChinaSchool of Integrated Circuit Science and EngineeringNanjing University of Posts and TelecommunicationsNanjing 210023 ChinaShanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Shanghai 200050 ChinaSchool of Integrated Circuit Science and EngineeringNanjing University of Posts and TelecommunicationsNanjing 210023 ChinaSchool of Integrated Circuit Science and EngineeringNanjing University of Posts and TelecommunicationsNanjing 210023 ChinaSchool of Integrated Circuit Science and EngineeringNanjing University of Posts and TelecommunicationsNanjing 210023 ChinaAbstract Spiking neural networks (SNNs) employ discrete spikes that mimic the firing of neurons in biological systems to process and transmit information. This characteristic enables SNNs to effectively capture temporal dynamics and capitalize on the time information inherent in time‐varying inputs, such as motion, audio/video streams, and other sequential data. Currently, most hardware implementations of SNNs are designed to use rate‐coding, where information is encoded in the rate of spikes. However, it still remains challenging for the hardware implementation of temporal coding in SNNs, which allows for higher input sparsity and exploits additional dimensions such as precise spike timing and relative spike timings. This study presents hardware implementations of SNNs constructed by organic electrochemical transistors (OECTs), processing temporal‐coded information. The protic dynamics in response to electrical stimuli enable the emulation of temporal integration, reset, and leaking of membrane potential in a simple leaky integrate‐and‐fire (LIF) neuron circuit. By utilizing these features, the emulated LIF neuron can be employed to construct SNNs capable of processing temporal‐coded information in complex tasks including coincidence detection and dynamic handwriting recognition, exhibiting high performance and good tolerance even when dealing with noisy datasets.https://doi.org/10.1002/aelm.202300565leaky integrate‐and‐fireorganic electrochemical transistorspiking neural networkstemporal‐coding
spellingShingle Yuanyuan Zhu
Xiang Wan
Jie Yan
Li Zhu
Run Li
Cheeleong Tan
Zhihao Yu
Liuyang Sun
Shanchen Yan
Yong Xu
Huabin Sun
Leaky Integrate‐and‐Fire Neuron Based on Organic Electrochemical Transistor for Spiking Neural Networks with Temporal‐Coding
Advanced Electronic Materials
leaky integrate‐and‐fire
organic electrochemical transistor
spiking neural networks
temporal‐coding
title Leaky Integrate‐and‐Fire Neuron Based on Organic Electrochemical Transistor for Spiking Neural Networks with Temporal‐Coding
title_full Leaky Integrate‐and‐Fire Neuron Based on Organic Electrochemical Transistor for Spiking Neural Networks with Temporal‐Coding
title_fullStr Leaky Integrate‐and‐Fire Neuron Based on Organic Electrochemical Transistor for Spiking Neural Networks with Temporal‐Coding
title_full_unstemmed Leaky Integrate‐and‐Fire Neuron Based on Organic Electrochemical Transistor for Spiking Neural Networks with Temporal‐Coding
title_short Leaky Integrate‐and‐Fire Neuron Based on Organic Electrochemical Transistor for Spiking Neural Networks with Temporal‐Coding
title_sort leaky integrate and fire neuron based on organic electrochemical transistor for spiking neural networks with temporal coding
topic leaky integrate‐and‐fire
organic electrochemical transistor
spiking neural networks
temporal‐coding
url https://doi.org/10.1002/aelm.202300565
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