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Learning model of spiking neurons considering reward signals and its hardware implementation

Research Project

Project/Area Number 21K17818
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 61040:Soft computing-related
Research InstitutionTohoku University

Principal Investigator

Moriya Satoshi  東北大学, 電気通信研究所, 特任助教 (10898117)

Project Period (FY) 2021-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords神経回路モデル / STDP / 脳型計算 / スパイキングニューラルネットワーク / 脳型コンピュータ / 学習 / アナログ回路 / ニューラルネットワーク / 時系列情報処理 / 脳型ハードウェア / リザバー計算
Outline of Research at the Start

本研究は情報処理の更なる低消費電力化の為に,脳神経回路が実現している学習・情報処理をモデル化し,そのハードウェア実装を目的とする.各神経細胞が関知可能な電気的・化学的シグナル,すなわち局所情報から学習を進める神経情報処理モデルを構築し,そのアルゴリズムを実行する専用のアーキテクチャを開発・ハードウェア上に実装することで,低消費電力性に加えて耐障害性や可拡張性を兼ね備えたシステムの構築を目指す.

Outline of Final Research Achievements

In this study, we constructed a neural information processing model that efficiently learns from local information such as neural spike signals. We evaluated the performance of the model when applied to speech signal recognition task, and performance was improved by considering the reward signal compared to the case where only the time difference of the spike signal was used for weight update. In addition, we designed a dedicated analog circuit to calculate weights from the time differences of spike signals, which reduces power consumption and circuit area compared to software implementation.

Academic Significance and Societal Importance of the Research Achievements

深層学習を始めとする従来の神経情報処理モデルでは、ネットワーク全体の活動を中央集権的に監視・統合し学習が成されることが大半であり、その結果計算コストが高く、多くの電力を消費する課題があった。本研究で提案したモデルは、神経細胞が生じる局所情報から学習を進められるうえ、専用回路により効率的に計算できるものであり、低消費電力の脳型デバイスの実現に貢献する。本成果は、神経情報処理の更なる普及や、現行の神経情報処理の応用の枠を越えた分野への応用に資するものである。

Report

(3 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • Research Products

    (29 results)

All 2023 2022 2021 Other

All Int'l Joint Research (2 results) Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (25 results) (of which Int'l Joint Research: 13 results,  Invited: 1 results)

  • [Int'l Joint Research] Polytechnic University of Catalonia(スペイン)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Polytechnic University of Catalonia(スペイン)

    • Related Report
      2021 Research-status Report
  • [Journal Article] A Fully Analog CMOS Implementation of a Two-variable Spiking Neuron in the Subthreshold Region and its Network Operation2022

    • Author(s)
      Moriya Satoshi、Yamamoto Hideaki、Sato Shigeo、Yuminaka Yasushi、Horio Yoshihiko、Madrenas Jordi
    • Journal Title

      2022 International Joint Conference on Neural Networks (IJCNN)

      Volume: - Pages: 1-7

    • DOI

      10.1109/ijcnn55064.2022.9891920

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Analog-circuit implementation of multiplicative spike-timing-dependent plasticity with linear decay2021

    • Author(s)
      Satoshi Moriya; Tatsuki Kato; Daisuke Oguchi; Hideaki Yamamoto; Shigeo Sato; Yasushi Yuminaka; Yoshihiko Horio; Jordi Madrenas
    • Journal Title

      Nonlinear Theory and Its Applications, IEICE

      Volume: 12 Issue: 4 Pages: 685-694

    • DOI

      10.1587/nolta.12.685

    • NAID

      130008098002

    • ISSN
      2185-4106
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Analog LSI implementation of spiking neural network for energy efficient computing2023

    • Author(s)
      Satoshi Moriya, Hideaki Yamamoto, Shigeo Sato, Yasushi Yuminaka, Yoshihiko Horio, Jordi Madrenas
    • Organizer
      The 11th RIEC International Symposium on Brain Functions and Brain Computer
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Optimization of reservoir neural network structure for sensorimotor control2023

    • Author(s)
      Arisa Fujimoto, Hideaki Yamamoto, Satoshi Moriya, Keita Tokuda, Yuichi Katori, Shigeo Sato
    • Organizer
      The 11th RIEC International Symposium on Brain Functions and Brain Computer
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Interfacing considerations for digital neuromorphic spiking neural hardware2023

    • Author(s)
      Jordi Madrenas, Bernardo Vallejo, Mireya Zapata, Satoshi Moriya, Shigeo Sato
    • Organizer
      The 11th RIEC International Symposium on Brain Functions and Brain Computer
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Parameter optimization of two-dimensionally connected Josephson junctions for reservoir computing2023

    • Author(s)
      Kohki Watanabe, Yoshinao Mizugaki, Satoshi Moriya, Hideaki Yamamoto, Shigeo Sato
    • Organizer
      The 11th RIEC International Symposium on Brain Functions and Brain Computer
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] In vitro reconstruction of artificial neuronal networks with oriented intermodular connections2023

    • Author(s)
      Nobuaki Monma, Hideaki Yamamoto, Hakuba Murota, Moriya Satoshi, Ayumi Hirano, Shigeo Sato
    • Organizer
      The 11th RIEC International Symposium on Brain Functions and Brain Computer
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Analog CMOS implementation of spiking neural networks for edge computing2023

    • Author(s)
      Shigeo Sato, Satoshi Moriya, Hideaki Yamamoto, Yoshihiko Horio, Yasushi Yuminaka, Jordi Madrenas
    • Organizer
      The 11th RIEC International Symposium on Brain Functions and Brain Computer
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 2次元接続されたジョセフソン接合を用いたリザバー計算の画像分類応用における性能について2023

    • Author(s)
      渡邊紘基,水柿義直,守谷哲,山本英明,佐藤茂雄
    • Organizer
      応用物理学会 春季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 報酬変調型STDP学習則と荷重値分配を用いた時系列信号分類手法の提案2023

    • Author(s)
      飯田 陽介,守谷 哲,山本 英明,佐藤 茂雄
    • Organizer
      電子情報通信学会 総合大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] A fully analog CMOS implementation of a two-variable spiking neuron in the subthreshold region and its network operation2022

    • Author(s)
      Satoshi Moriya, Hideaki Yamamoto, Shigeo Sato, Yasushi Yuminaka, Yoshihiko Horio, Jordi Madrenas
    • Organizer
      2022 International Joint Conference on Neural Networks
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ultra-low power analog CMOS implementation of spiking neural networks for reservoir computing applications2022

    • Author(s)
      Satoshi Moriya, Hideaki Yamamoto, Shigeo Sato, Yasushi Yuminaka, Yoshihiko Horio, Jordi Madrenas
    • Organizer
      The 2022 International Symposium on Nonlinear Theory and Its Applications
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] スパイキングニューラルネットワークのアナログ回路実装と時系列情報処理への応用2022

    • Author(s)
      守谷 哲,山本 英明,弓仲 康史,堀尾 喜彦,佐藤 茂雄
    • Organizer
      電子情報通信学会 ニューロコンピューティング研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Multi-model spiking neural network hardware execution2022

    • Author(s)
      Bernardo Vallejo, Jordi Madrenas, Mireya Zapata, Satoshi Moriya, Shigeo Sato
    • Organizer
      The 2022 International Symposium on Nonlinear Theory and Its Applications
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Optimization of circuit parameters for JTL-based reservoir computing2022

    • Author(s)
      Kohki Watanabe, Yoshinao Mizugaki, Satoshi Moriya, Hideaki Yamamoto, Shigeo Sato
    • Organizer
      The 2022 JSPS 146th Committee International Symposium on Superconductor Electronics jointed with 15th Superconducting SFQ VLSI Workshop
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ニューラルネットワーク応用へ向けたアナログCMOS多数決回路のLSI実装2022

    • Author(s)
      小野 哲史,守谷 哲,菅家 由佳,山本 英明,弓仲 康史,佐藤 茂雄
    • Organizer
      電子情報通信学会 ニューロコンピューティング研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 波形分類のためのジョセフソン伝送線路を用いた物理リザバー2022

    • Author(s)
      渡邊紘基, 水柿義直, 守谷 哲, 山本英明, 佐藤茂雄
    • Organizer
      電子情報通信学会 超伝導エレクトロニクス研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 結合行列の対称性制御によるリカレントニューラルネットワークの構造最適化2022

    • Author(s)
      藤本 ありさ,山本 英明,守谷 哲,徳田 慶太,香取 勇一,佐藤 茂雄
    • Organizer
      電子情報通信学会 ニューロコンピューティング研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] モジュール間結合に指向性を有する人工神経回路の作製と自発活動解析2022

    • Author(s)
      門間信明,山本英明,守谷哲,平野愛弓,佐藤茂雄
    • Organizer
      応用物理学会 秋季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 減衰付きSTDP学習則のアナログ回路設計とLSI実装2022

    • Author(s)
      守谷 哲,加藤 達暉,弓仲 康史,山本 英明,佐藤 茂雄,堀尾 喜彦
    • Organizer
      電子情報通信学会 ニューロコンピューティング(NC)研究会
    • Related Report
      2021 Research-status Report
  • [Presentation] ニューロン回路への応用を目的としたアナログCMOS多数決回路の設計2022

    • Author(s)
      小野 哲史,守谷 哲,菅家 由佳,山本 英明,弓仲 康史,佐藤 茂雄
    • Organizer
      電子情報通信学会 ニューロコンピューティング(NC)研究会
    • Related Report
      2021 Research-status Report
  • [Presentation] Analog Hardware Implementation of Spiking Neural Networks2021

    • Author(s)
      Satoshi Moriya
    • Organizer
      MIRAI 2.0 R&I Week 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] A Subthreshold Spiking Neuron Circuit Based on the Izhikevich Model2021

    • Author(s)
      Shigeo Sato, Satoshi Moriya, Yuka Kanke, Hideaki Yamamoto, Yoshihiko Horio, Yasushi Yuminaka, Jordi Madrenas,
    • Organizer
      30th International Conference on Artificial Neural Networks
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] An Investigation of the Relationship between Numerical Precision and Performance of Q-Learning for Hardware Implementation2021

    • Author(s)
      Daisuke Oguchi, Satoshi Moriya, Hideaki Yamamoto, Shigeo Sato
    • Organizer
      The 2021 Nonlinear Science Workshop
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] リザバー計算に基づく人工神経細胞回路のパターン分類特性の評価2021

    • Author(s)
      住 拓磨,山本 英明,守谷 哲,竹室 汰貴,金野 智浩,佐藤 茂雄,平野 愛弓
    • Organizer
      第31回 日本神経回路学会全国大会
    • Related Report
      2021 Research-status Report
  • [Presentation] リカレントニューラルネットワークの固有値分布における対称性解析2021

    • Author(s)
      藤本 ありさ,山本 英明,守谷 哲,佐藤 茂雄
    • Organizer
      第31回 日本神経回路学会全国大会
    • Related Report
      2021 Research-status Report
  • [Presentation] FPGA実装に向けた強化学習モデルの丸め誤差と学習性能に関する考察2021

    • Author(s)
      小口 大輔,守谷 哲,山本 英明,佐藤 茂雄
    • Organizer
      電子情報通信学会 ニューロコンピューティング(NC)研究会
    • Related Report
      2021 Research-status Report

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Published: 2021-04-28   Modified: 2024-01-30  

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