Kohei Nakajima

Profile Information

Affiliation: Associate Professor, The Graduate School of Information Science and Technology, The University of Tokyo

Degree: Ph.D.(Mar, 2009, The University of Tokyo)

J-GLOBAL ID: 201401011018572320
researchmap Member ID: 7000009588

External link: http://www.kohei-nakajima.com/

Research Areas

Awards

Feb, 2024

45th (2023) JSAP Outstanding Paper Award: Award for Best Review Paper, Nakajima, K. (2020). Physical reservoir computing—an introductory perspective. Japanese Journal of Applied Physics, 59(6), 060501., The Japan Society of Applied Physics

Kohei Nakajima
Sep, 2015

The 25th Annual Conference Award, Physical liquid state machine: Real-time computation at the water surface, Japanese Neural Network Society

Kohei Nakajima

Papers

147

Meeting a Body outside of Control: Robots and Disability

Asa Ito, Kohei Nakajima

Journal of the Robotics Society of Japan, 42(1) 32-37, Jan, 2024
Sharp changes in fractal basin of attraction in passive dynamic walking

Kota Okamoto, Nozomi Akashi, Ippei Obayashi, Kohei Nakajima, Hiroshi Kokubu, Kei Senda, Kazuo Tsuchiya, Shinya Aoi

Nonlinear Dynamics, Nov 22, 2023 Peer-reviewed
Quantum-classical hybrid information processing via a single quantum system

Quoc Hoan Tran, Sanjib Ghosh, Kohei Nakajima

Physical Review Research, 5(4) 043127, Nov 7, 2023 Peer-reviewedLast author
Information Processing Capacity of Spintronic Oscillator

Sumito Tsunegi, Tomoyuki Kubota, Akira Kamimaki, Julie Grollier, Vincent Cros, Kay Yakushiji, Akio Fukushima, Shinji Yuasa, Hitoshi Kubota, Kohei Nakajima …

Advanced Intelligent Systems, 2300175, Jun 30, 2023 Peer-reviewed
“RobOstrich” Manipulator: A Novel Mechanical Design and Control Based on the Anatomy and Behavior of an Ostrich Neck

Kazashi Nakano, Megu Gunji, Masahiro Ikeda, Keung Or, Mitsuhito Ando, Katsuma Inoue, Hiromi Mochiyama, Kohei Nakajima, Ryuma Niiyama, Yasuo Kuniyoshi

IEEE Robotics and Automation Letters, 8(5) 3062-3069, May, 2023 Peer-reviewed
Temporal information processing induced by quantum noise

Tomoyuki Kubota, Yudai Suzuki, Shumpei Kobayashi, Quoc Hoan Tran, Naoki Yamamoto, Kohei Nakajima

Physical Review Research, 5(2), Apr 25, 2023 Peer-reviewedLast author
Computational capability of ecological dynamics

Masayuki Ushio, Kazufumi Watanabe, Yasuhiro Fukuda, Yuji Tokudome, Kohei Nakajima

Royal Society Open Science, 10(4), Apr 19, 2023 Peer-reviewedLast author
Computational capability for physical reservoir computing using a spin-torque oscillator with two free layers

Terufumi Yamaguchi, Sumito Tsunegi, Kohei Nakajima, Tomohiro Taniguchi

Physical Review B, 107(5), Feb 7, 2023 Peer-reviewed
Physical deep learning with biologically inspired training method: gradient-free approach for physical hardware

Mitsumasa Nakajima, Katsuma Inoue, Kenji Tanaka, Yasuo Kuniyoshi, Toshikazu Hashimoto, Kohei Nakajima

Nature Communications, 13 7847, Dec 26, 2022 Peer-reviewedLast authorCorresponding author
Input-driven chaotic dynamics in vortex spin-torque oscillator

Yusuke Imai, Kohei Nakajima, Sumito Tsunegi, Tomohiro Taniguchi

Scientific Reports, 12(1), Dec 15, 2022
Continuum-Body-Pose Estimation From Partial Sensor Information Using Recurrent Neural Networks

Kazutoshi Tanaka, Yuna Minami, Yuji Tokudome, Katsuma Inoue, Yasuo Kuniyoshi, Kohei Nakajima

IEEE Robotics and Automation Letters, 7(4) 11244-11251, Oct, 2022 Peer-reviewedLast author
A Coupled Spintronics Neuromorphic Approach for High‐Performance Reservoir Computing

Nozomi Akashi, Yasuo Kuniyoshi, Sumito Tsunegi, Tomohiro Taniguchi, Mitsuhiro Nishida, Ryo Sakurai, Yasumichi Wakao, Kenji Kawashima, Kohei Nakajima

Advanced Intelligent Systems, 4(10) 2200123-2200123, Sep 20, 2022 Peer-reviewedLast author
Generalized multiplicative stochastic processes arising from one-dimensional maps with noise

Taichi Haruna, Kohei Nakajima

Artificial Life and Robotics, Sep 4, 2022 Peer-reviewedInvitedLast author
Self-organized criticality for dendritic readiness potential

Katsushi Kagaya, Tomoyuki Kubota, Kohei Nakajima

arXiv, Sep, 2022
Physics-Informed Recurrent Neural Networks for Soft Pneumatic Actuators

Wentao Sun, Nozomi Akashi, Yasuo Kuniyoshi, Kohei Nakajima

IEEE Robotics and Automation Letters, 7(3) 6862-6869, Jul, 2022 Peer-reviewedCorresponding author
Noise-induced synchronization of spin-torque oscillators

Yusuke Imai, Sumito Tsunegi, Kohei Nakajima, Tomohiro Taniguchi

Physical Review B, 105(22), Jun 15, 2022 Peer-reviewed
A Multitasking Flexible Sensor via Reservoir Computing

Seiji Wakabayashi, Takayuki Arie, Seiji Akita, Kohei Nakajima, Kuniharu Takei

Advanced Materials, 2201663-2201663, May 4, 2022 Peer-reviewedLast author
Durable Pneumatic Artificial Muscles with Electric Conductivity for Reliable Physical Reservoir Computing

Ryo Sakurai, Mitsuhiro Nishida, Taketomo Jo, Yasumichi Wakao, Kohei Nakajima

Journal of Robotics and Mechatronics, 34(2) 240-248, Apr 20, 2022 Peer-reviewedLast author
Self-Organization of Physics-Informed Mechanisms in Recurrent Neural Networks: A Case Study in Pneumatic Artificial Muscles

Wentao Sun, Nozomi Akashi, Yasuo Kuniyoshi, Kohei Nakajima

2022 IEEE 5th International Conference on Soft Robotics (RoboSoft), 409-415, Apr 4, 2022 Peer-reviewedLast author
Echo state property and memory in octopus-inspired soft robotic arm

Katsushi Kagaya, Bowei Yu, Yuna Minami, Kohei Nakajima

2022 IEEE 5th International Conference on Soft Robotics (RoboSoft), 224-230, Apr 4, 2022 Peer-reviewedLast author

Misc.

Special Issue on Science of Soft Robots

Koichi Suzumori, Ryuma Niiyama, Kenjiro Fukuda, Kohei Nakajima

JOURNAL OF ROBOTICS AND MECHATRONICS, 34(2) 193-194, Apr, 2022
有限温度におけるスピントルク発振器のエコーステート・プロパティ

今井悠介, 常木澄人, 中嶋浩平, 谷口知大

2022年第69回応用物理学会春季学術講演会（口頭講演）, Mar 25, 2022
絶対零度におけるスピントルク発振器のエコーステート・プロパティ

谷口知大, 今井悠介, 常木澄人, 中嶋浩平

2022年第69回応用物理学会春季学術講演会（口頭講演）, Mar 25, 2022
拡張DFA法による物理ニューラルネットの訓練とその光電実装

中島光雅, 井上克馬, 田仲顕至, 國吉康夫, 橋本俊和, 中嶋浩平

2022年第69回応用物理学会春季学術講演会（口頭講演）, Mar 23, 2022
物理リザバーの情報処理容量

窪田智之, 中嶋浩平

2022年第69回応用物理学会春季学術講演会（口頭講演）, Mar 23, 2022
機械機構による真乱数生成器

明石望洋, 中嶋浩平, 柴山允瑠, 國吉康夫

2022年日本物理学会第77回年次大会（口頭発表）, Mar 17, 2022
時間的量子トモグラフィーの学習

チャンクオックホアン, 中嶋浩平

2022年日本物理学会第77回年次大会（口頭発表）, Mar 17, 2022
BERTモデルにおける過渡カオスの存在

井上克馬, 尾原颯, 國吉康夫, 中嶋浩平

2022年日本物理学会第77回年次大会（口頭発表）, Mar 16, 2022
Universal Approximation Property via Quantum Feature Maps

Q. H. Tran, T. Goto, K. Nakajima

Quantum Techniques in Machine Learning 2021, Nov 9, 2021
高階量子リザバーコンピューティング

Tran Quoc Hoan, 中嶋浩平

日本物理学会2021年秋季大会（口頭発表）, Sep 22, 2021
時間的量子トモグラフィーの学習

Tran Quoc Hoan, 中嶋浩平

第82回応用物理学会秋季学術講演会（口頭講演）, Sep, 2021
結合スピントロニクスレザバーの分岐構造と計算能力

明石望洋, 常木澄人, 谷口知大, 西田三博, 櫻井良, 若尾泰通, 中嶋浩平

第68回応用物理学会春季学術講演会, Mar 19, 2021 Last author
Identification of chaos in spin-torque oscillator from evaluation of noise limit

谷口知大, 窪田智之, 上牧暎, 常木澄人, 中嶋浩平, GROLLIER Julie, CROS Vincent, 薬師寺啓, 福島章雄, 湯浅新治 …

応用物理学会秋季学術講演会講演予稿集(CD-ROM), 82nd, 2021
Physical Reservoir Computing by Spin-Torque Oscillator at the Edge of Chaos

A. Kamimaki, S. Sumito, T. Taniguchi, N. Akashi, K. Nakajima, A. Fukushima, S.Yuasa, V. Cros, J. Grollier, H. Kubota

65th Annual Conference on Magnetism and Magnetic Materials (MMM 2020), Nov 2, 2020
Input-driven bifurcations in spintronics reservoir computing

Nozomi Akashi, Terufumi Yamaguchi, Sumito Tsunegi, Tomohiro Taniguchi, Mitsuhiro Nishida, Ryo. Sakurai, Yasumichi Wakao, Kohei Nakajima

Second Symposium on Machine Learning and Dynamical Systems, Sep 22, 2020 Last author
Chaotic Behavior of Spin-Torque Oscillator with Feedback Circuit

上牧暎, 常木澄人, 谷口知大, 明石望洋, 中嶋浩平, 福島章雄, 湯浅新司, 久保田均

第81回応用物理学会秋季学術講演会, Sep 10, 2020
遅延回路を含むスピントロニクス素子におけるカオス

谷口知大, 明石望洋, 野津裕史, 木村正人, 塚原宙, 中嶋浩平

第81回応用物理学会秋季学術講演会, Sep 10, 2020 Last author
遅延回路を含むスピントロニクス・リザバーの短時間記憶容量

山口皓史, 明石望洋, 常木澄人, 久保田均, 中嶋浩平, 谷口知大

第81回応用物理学会秋季学術講演会, Sep 9, 2020
スピントルク発振器における情報処理能力と分岐構造の関係

明石望洋, 山口皓史, 常木澄人, 谷口知大, 中嶋浩平

日本物理学会第75回年次大会, Mar 19, 2020 Last author
スピントルク発振器におけるカオスの理論

山口皓史, 明石望洋, 中嶋浩平, 常木澄人, 久保田均, 谷口知大

日本物理学会第75回年次大会, Mar 19, 2020

Books and Other Publications

The Science of Soft Robots

Koichi Suzumori, Kenjiro Fukuda, Ryuma Niiyama, Kohei Nakajima (Role: Editor)

Springer Singapore, Sep 13, 2023 (ISBN: 9789811951732)
ソフトロボット学入門: 基本構成と柔軟物体の数理

鈴森康一, 中嶋浩平, 新山龍馬, 舛屋賢

オーム社, Jan 19, 2023 (ISBN: 427422998X)
Reservoir Computing---Theory, Physical Implementations, and Applications

Kohei Nakajima, Ingo Fischer (Role: Joint editor)

Springer, Singapore, Aug 6, 2021
Toward NMR Quantum Reservoir Computing

Negoro M, Mitarai K, Nakajima K, Fujii K (Role: Contributor, In: Nakajima K., Fischer I. (eds) Reservoir Computing. Natural Computing Series.)

Springer, Singapore, Aug 6, 2021
Quantum Reservoir Computing: A Reservoir Approach Toward Quantum Machine Learning on Near-Term Quantum Devices

Fujii K, Nakajima K (Role: Contributor, In: Nakajima K., Fischer I. (eds) Reservoir Computing. Natural Computing Series.)

Springer, Singapore, Aug 6, 2021
Reservoir Computing Based on Spintronics Technology

Taniguchi T, Tsunegi S, Miwa S, Fujii K, Kubota H, Nakajima K (Role: Contributor, In: Nakajima K., Fischer I. (eds) Reservoir Computing. Natural Computing Series.)

Springer, Singapore, Aug 6, 2021
Soft timer: dynamic clock embedded in soft body

Kohei Nakajima, Tao Li, Nozomi Akashi (Role: Contributor, In Robotic Systems and Autonomous Platforms: Advances in Materials and Manufacturing, pp. 181-196)

Woodhead Publishing in Materials, 2018
Muscular-Hydrostat Computers: Physical Reservoir Computing for Octopus-Inspired Soft Robots.

Kohei Nakajima (Role: Contributor, In Brain Evolution by Design, pp. 403--414, 2017.)

Springer Japan, Feb, 2017
Morphological Computation - The Body as a Computational Resource

Helmut Hauser, Rudolf Marcel Füchslin, Kohei Nakajima

E-book on Opinions and Outlooks on Morphological Computation (Edited by H. Helmut, R. M. Füchslin, Rolf Pfeifer) ISBN: 978-3033045156, 2014
現れる存在―脳と身体と世界の再統合

中嶋浩平, 森本元太郎 (Role: Joint translator, 7章分担翻訳)

NTT出版 ISBN: 978-4757102675, Nov, 2012

Presentations

やわらかい身体の役割を考える

中嶋浩平

北海道大学人間知・脳・AI研究教育センター（CHAIN）主催 "CHAIN ACADEMIC SEMINAR #21", Mar 29, 2022 Invited
Physical reservoir computing and its relevance to embodied intelligence

Kohei Nakajima

2nd International Conference on Embodied Intelligence, Mar 24, 2022 Invited
Physical reservoir computing for embodied intelligence

Kohei Nakajima

Institute for Neural Computation Chalk Talk Series (University of California San Diego), Mar 10, 2022 Invited
Physical Reservoir Computing

Kohei Nakajima

Oct 28, 2021 Invited
物理リザバー計算：ソフトロボットを例に

中嶋浩平

第16回TPE研究会公開講演会, Sep 30, 2021 Invited
Physical Reservoir Computing

Kohei Nakajima

Deep Learning in Unconventional Neuromorphic Hardware (Satellite Workshop of IJCNN2021), Jul 23, 2021 Invited
Physical Reservoir Computing: Exploiting Physical Dynamics as a Computational Resource

Kohei Nakajima

2021 Virtual Research Seminar Series on Complex Active and Adaptive Material Systems (Session "Information Processing in Materials"), Jul 1, 2021 Invited
Physical reservoir computing for soft robots

Kohei Nakajima

Material Intelligence (workshop at Robosoft 2021), Apr 12, 2021 Invited
物理リザバー計算

中嶋浩平

2021日本数学会年会, Mar 17, 2021 Invited
Designing chaotic itinerancy

Kohei Nakajima

International Conference: Differential Equations for Data Science 2021 (DEDS2021), Mar 8, 2021 Invited
高次元カオスを用いてダイナミクスを設計する

中嶋浩平

MIMS 現象数理学研究拠点共同研究集会2020年度「幾何学・連続体力学・情報科学の交差領域の探索」, Dec 5, 2020 Invited
Physical Reservoir Computing: タコ腕コンピュータを例に

中嶋浩平

東京大学次世代知能科学研究センター連続シンポジウム第一回「次世代の知能科学に向けて」, Dec 4, 2020 Invited
Physical Reservoir Computing for Soft Robots

Kohei Nakajima

NOLTA 2020 Special session "Physical Reservoir Computing", Nov 19, 2020 Invited
Physical Reservoir Computing for Soft Robots

Kohei Nakajima

ICRA 2020 Workshop on Self-Assembling and Reconfigurable Systems, Jun 30, 2020 Invited
Towards a novel information processing scheme for soft robots

Kohei Nakajima

30th 2019 International Symposium on Micro-NanoMechatronics and Human Science (From Micro & Nano Scale Systems to Robotics & Mechatronics Systems), Dec 2, 2019 Invited
物理リザバー計算の射程:ソフトロボットを例に

Kohei Nakajima

第80回応用物理学会秋季学術講演会シンポジウム：FS.AIエレクトロニクス「数理がひもとく自然・生命現象と知的計算能力」, Sep 21, 2019 Invited
しなやかな知能を育てる --ソフトロボットにおけるフィジカルリザバーコンピューティング--

Kohei Nakajima

2019年度日本機械学会年次大会(特別企画プログラム先端技術フォーラム機素潤滑設計部門企画ソフトロボット学), Sep 10, 2019 Invited
Physical Reservoir Computingの射程:ソフトロボットへの応用を例に

Kohei Nakajima

京都大学大学院理学研究科/理学部数学教室談話会, Jul 3, 2019 Invited
Physical Reservoir Computing for Soft Robots

Kohei Nakajima

The First International Workshop on Theoretical and Experimental Material Computing (TEMC 2019) (A satellite workshop of the International Conference on Unconventional Computation and Natural Computation (UCNC 2019)), Jun 3, 2019 Invited
Measuring and maximizing information dynamics

Kohei Nakajima

May 27, 2019 Invited

Research Projects

Understanding and Control of Swimming Motion in Jerryfish via Motion Hacking

Grants-in-Aid for Scientific Research, Grant-in-Aid for Challenging Research (Exploratory), Japan Society for the Promotion of Science, Jun, 2023 - Mar, 2026
Continuous healthcare sensor patch with immediate data analysis function

Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (A), Japan Society for the Promotion of Science, Apr, 2022 - Mar, 2026
Perceptual Information Made Available by Haptic Exploration: An Ecological Perspective

Grants-in-Aid for Scientific Research, Fund for the Promotion of Joint International Research (Fostering Joint International Research (B)), Japan Society for the Promotion of Science, Oct, 2021 - Mar, 2025
やわらかいダイナミクスとフレキシブルセンサー技術の融合による情報処理限界の突破

科学研究費助成事業, 新学術領域研究(研究領域提案型), 日本学術振興会, Jun, 2018 - Mar, 2023

中嶋浩平, 竹井邦晴
ソフトロボット学の総括

科学研究費助成事業, 新学術領域研究(研究領域提案型), 日本学術振興会, Jun, 2018 - Mar, 2023

鈴森康一, 新山龍馬, 清水正宏, 田中博人, 福田憲二郎, 多田隈建二郎, 中嶋浩平, 前田真吾, 伊藤浩史, 難波江裕之
Theory and Implementation of Reservoir Computing Utilizing Non-Chaotic Strange Tractors

Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), Japan Society for the Promotion of Science, Jul, 2016 - Mar, 2020

Aoyagi Toshio
Implementation of Physical Liquid State Machine Based on Faraday Waves

Grants-in-Aid for Scientific Research, Grant-in-Aid for Young Scientists (B), Japan Society for the Promotion of Science, Apr, 2015 - Mar, 2018

Nakajima Kohei
流体計算機の構想

科学研究費助成事業, 研究活動スタート支援, 日本学術振興会, Aug, 2014 - Mar, 2015

中嶋浩平

Industrial Property Rights

特願2020-210737 推定装置、推定方法、プログラム、及び学習モデル生成装置

中嶋浩平, 櫻井良, 若尾泰通
特願2019-229782 推定装置、推定方法、プログラム、及び学習モデル生成装置

櫻井良, 若尾泰通, 中嶋浩平
特願2016-013659 量子情報処理システム、量子情報処理方法、プログラム、及び記録媒体

藤井啓祐, 中嶋浩平
特願2017-21450 量子計算装置及び量子計算方法

根耒誠, 北川勝浩, 中嶋浩平, 藤井啓祐

Academic Activities

International Conference on Differential Equations for Data Science 2022 (DEDS2022)

Planning, management, etc., Other

Hayato Chiba; Ingo Fischer; Lyudmila Grigoryeva; Masato Kimura; Hiroshi Kokubu; Kohei Nakajima; Hirofumi Notsu; Juan-Pablo Ortega, Mar 21, 2022 - Mar 23, 2022
2021 International Workshop on Next Generation Embodied Intelligence (EI Workshop 2021)

Planning, management, etc.

Fumiya Iida, Josh Bongard, Kohei Nakajima, Josie Hughes, Toby Howison, Marwa ElDiwiny, Hadi Sadati, Veronica Egorova, Mar 24, 2021 - Mar 26, 2021
Toward the Nature of Information Processing in Soft Machines: Bridging Flexible Electronics and Morphological Computation (a full-day workshop in 2019 IEEE Internatonal Conference on Soft Robotics)

Planning, management, etc., Panel moderator, session chair, etc.

Kohei Nakajima; Fumiya Iida; Koichi Suzumori, Apr 14, 2019 - Apr 14, 2019

Profile Information

Research Areas

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Misc.

Books and Other Publications

Presentations

Research Projects

Industrial Property Rights

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