Details of the Researcher

PHOTO

Hiroyasu Ando
Section
Advanced Institute for Materials Research
Job title
Professor
Degree

  • 博士(情報理工学)(東京大学)

  • 修士（科学）（東京大学）

e-Rad No.
20553770

Research History 6

  • 2021/10 - Present
    Tohoku University　Advanced Institute for Materials Research

  • 2017/04 - 2021/09
    University of Tsukuba　Faculty of Engineering, Information and Systems

  • 2014/04 - 2017/03
    University of Tsukuba　Faculty of Engineering, Information and Systems

  • 2012/04 - 2014/03
    理化学研究所　脳科学総合研究センター　研究員

  • 2009/04 - 2012/03
    理化学研究所　基礎科学特別研究員

  • 2007/04 - 2009/03
    ERATO合原複雑数理モデルプロジェクト　研究員

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Education 2

  • 東京大学大学院　情報理工学系研究科　数理情報学専攻博士課程

    - 2007/03

  • The University of Tokyo　The Faculty of Engineering　Department of Mathematical Engineering and Information Physics

    - 2002/03

Professional Memberships 2

  • THE PHYSICAL SOCIETY OF JAPAN

  • THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS.

Research Areas 2

  • Informatics / Biological, health, and medical informatics /

  • Informatics / Sensitivity (kansei) informatics /

Papers 111

  1. On cyclostationary linear inverse models: a mathematical insight and implication Peer-reviewed

    Justin Lien, Yan-Ning Kuo, Hiroyasu Ando, Shoichiro Kido

    Frontiers in Complex Systems　3　2025/04/22

    Publisher: Frontiers Media SA

    DOI： 10.3389/fcpxs.2025.1563687 　

    eISSN： 2813-6187

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    Cyclostationary linear inverse models (CS-LIMs) are advanced data-driven techniques for extracting first-order time-dependent dynamics and random forcing information from cyclostationary observational data. This study focuses on the mathematical perspective of CS-LIMs and presents two variants, namely, -CS-LIM and -CS-LIM. The -CS-LIM, improved from the original CS-LIM, constructs the first-order dynamics through the interval-wise application of the stationary LIM (ST-LIM), capturing the integrated effect of each interval where similar cyclostationary dependencies are present. This approach provides robustness against noise but is affected by the Nyquist issue, similar to the ST-LIM. The -CS-LIM, on the other hand, estimates the time-dependent Jacobian of the underlying system. Although more sensitive to noise, this method is free from the Nyquist issue. Numerical experiments demonstrate that both CS-LIM variants effectively capture the temporal structure of the underlying system using synthetic observational data. Moreover, when applied to real-world ENSO data, CS-LIMs yield consistent results that align well with the observations and current El Niño–Southern Oscillation (ENSO) understanding.

  2. Colored linear inverse model: A data-driven method for studying dynamical systems with temporally correlated stochasticity Peer-reviewed

    Justin Lien, Yan-Ning Kuo, Hiroyasu Ando, Shoichiro Kido

    Physical Review Research　7　(2)　2025/04/11

    Publisher: American Physical Society (APS)

    DOI： 10.1103/physrevresearch.7.023042 　

    eISSN： 2643-1564

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    In real-world problems, environmental noise is often idealized as Gaussian white noise, despite potential temporal dependencies. The linear inverse model (LIM) is a class of data-driven methods that extract dynamic and stochastic information from finite time-series data of complex systems. In this study, we introduce a new variant of LIM, called colored LIM, which models stochasticity using Ornstein-Uhlenbeck colored noise. Despite the nontrivial correlation between observable and colored noise, we show that colored LIM unveils the desired information merely from the correlation function of the observable. Therefore, this approach not only accounts for the memory effects of environmental noise, traditionally represented by time-uncorrelated white noise in the classical-LIM framework, but does so using the same observational dataset without requiring additional data. Furthermore, we show that colored LIM does not reduce to classical LIM in the white noise limit, underscoring the importance of temporal dependencies in stochastic systems. In this paper, we rigorously develop the colored LIM, explore its connections with the classical LIM, dynamic mode decomposition, and vector autoregressive moving average models, and validate its effectiveness on both ideal linear and nonlinear systems. In addition, we illustrate the potential applications and implications of colored LIM for real-world problems, including the El Niño–southern oscillation and the electricity network of Tohoku University. Published by the American Physical Society 2025

  3. Reducing Total Trip Time and Vehicle Emission through Park-and-Ride — methods and case-study Peer-reviewed

    Ayane Nakamura, Fabiana Ferracina, Naoki Sakata, Takahiro Noguchi, Hiroyasu Ando

    Journal of Cleaner Production　493　144860-144860　2025/02

    Publisher: Elsevier BV

    DOI： 10.1016/j.jclepro.2025.144860 　

    ISSN： 0959-6526

  4. Coordinating Electric Vehicles: Impacts on Mobility-Service and Electricity Markets Peer-reviewed

    Hiroyasu Ando, Nobuhito Kon, Morimitsu Kurino, Isamu Takahara

    2024 IEEE International Conference on Big Data (BigData)　3838-3846　2024/12/15

    Publisher: IEEE

    DOI： 10.1109/bigdata62323.2024.10825238 　

  5. Reduction of Traffic Congestion by Using Chaotic Traffic Flow in a Scaled Traffic Model Peer-reviewed

    Takahiro Noguchi, Hiroyasu Ando, Ryunosuke Fukuzaki, Yumi Watahiki, Isamu Takahara

    2024 IEEE International Conference on Big Data (BigData)　3865-3870　2024/12/15

    Publisher: IEEE

    DOI： 10.1109/bigdata62323.2024.10825336 　

  6. Robust Design of Echo State Networks for Soft Sensor Applications Based on Risk-Aware Optimization and Stability Testing Peer-reviewed

    Shunsuke Takagaki, Ryunosuke Fukuzaki, Koki Tateishi, Toshikazu Noda, Hiroyasu Ando

    Proc. ICONIP 2024　2024/12

  7. Mathematical analysis of the Wiener processes with time-delayed feedback Peer-reviewed

    Miki U. Kobayashi, Kohta Takehara, Hiroyasu Ando, Michio Yamada

    AIP Advances　14　(9)　2024/09/01

    Publisher: AIP Publishing

    DOI： 10.1063/5.0209241 　

    eISSN： 2158-3226

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    It is known that time delays generally make a system unstable. However, it is numerically observed that the diffusion coefficients of the Wiener processes with time-delayed feedback decrease while increasing the time delay τ. In particular, the decay of the diffusion coefficients with the form (11+τ)2 has been confirmed by numerical simulations [Ando et al., Phys. Rev. E 96, 012148 (2017)]. In this paper, we present two analytical derivations for the relation (11+τ)2 by dynamical system approaches using the Laplace transform and stochastic differential equations.

  8. Mathematical Model Analysis of Photovoltaic-Induced Land Use Transition Peer-reviewed

    Yumi Watahiki, Hiroyasu Ando, Isamu Takahara

    2023 IEEE International Conference on Big Data (BigData)　3222-3230　2023/12/15

    Publisher: IEEE

    DOI： 10.1109/bigdata59044.2023.10386223 　

  9. Computation harvesting from nature dynamics for predicting wind speed and direction. International-journal Peer-reviewed

    Takumi Aita, Hiroyasu Ando, Yuichi Katori

    PloS one　18　(12)　e0295649　2023/12

    DOI： 10.1371/journal.pone.0295649 　

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    Natural phenomena generate complex dynamics because of nonlinear interactions among their components. The dynamics can be exploited as a kind of computational resource. For example, in the framework of natural computation, various natural phenomena such as quantum mechanics and cellular dynamics are used to realize general purpose calculations or logical operations. In recent years, simple collection of such nature dynamics has become possible in a sensor-rich society. For example, images of plant movement that have been captured indirectly by a surveillance camera can be regarded as sensor outputs reflecting the state of the wind striking the plant. Herein, based on ideas of physical reservoir computing, we present a methodology for wind speed and direction estimation from naturally occurring sensors in movies. Then we demonstrate its effectiveness through experimentation. Specifically using the proposed methodology, we investigate the computational capability of the nature dynamics, revealing its high robustness and generalization performance for computation.

  10. Time-Series Prediction of Calcium Carbonate Concentration in Flue Gas Desulfurization Equipment by Optimized Echo State Network Peer-reviewed

    Shunsuke Takagaki, Koki Tateishi, Hiroyasu Ando

    Artificial Neural Networks and Machine Learning – ICANN 2023　281-292　2023/09/22

    Publisher: Springer Nature Switzerland

    DOI： 10.1007/978-3-031-44223-0_23 　

    ISSN： 0302-9743

    eISSN： 1611-3349

  11. Functional improvement in β cell models of type 2 diabetes using on-demand feedback control Peer-reviewed

    K. Koyama, H. Ando, K. Fujiwara

    AIP Advances　13　(4)　2023/04/01

    Publisher: AIP Publishing

    DOI： 10.1063/5.0124625 　

    eISSN： 2158-3226

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    The bursting activity of pancreatic β cells is correlated with insulin secretion. Although normal pancreatic β cells show periodic bursting, the bursting activity becomes irregular in dysfunctional pancreatic β cells of type 2 diabetic patients. In this study, we modeled the dynamics of dysfunctional pancreatic β cells using differential equations. We investigated it in terms of energy efficiency of control. The control method is considered for on-demand electrical stimulation using the methodology of chaos control. Numerical simulation results show that the bursts are controlled in a periodic rhythm by the feedback mechanism. In addition, we found input timings that induce energy efficient control for rhythmic bursts. These results suggest that chaos control can improve insulin secretion, which might contribute to type 2 diabetes treatment.

  12. Short-term prediction of sepsis onset in ICU patients using simplified reservoir computing Peer-reviewed

    Onoe Junya, Tsuji Ayumu, Fujihira Ryo, Shigemi Rikuto, Uda Tomoki, Nishiguchi Junya, Kawakami Eiryo, Ando Hiroyasu

    Proceedings of the 2023 International Symposium on Nonlinear Theory and its Applications　250-253　2023

  13. Predicting traffic breakdown on expressways using linear combination of vehicle detector data Peer-reviewed

    Rikuto Shigemi, Hiroyasu Ando, Kentaro Wada, Risa Mukai

    Nonlinear Theory and Its Applications, IEICE　14　(2)　416-427　2023

    Publisher: Institute of Electronics, Information and Communications Engineers (IEICE)

    DOI： 10.1587/nolta.14.416 　

    eISSN： 2185-4106

  14. Network formation of next generation electric power and mobility in rural area Peer-reviewed

    Yumi Watahiki, Hiroyasu Ando, Isamu Takahara

    2022 IEEE International Conference on Big Data (Big Data)　2022/12/17

    Publisher: IEEE

    DOI： 10.1109/bigdata55660.2022.10020367 　

  15. Tunnel conductance modeling of spintronics devices based on device temperature dynamics Peer-reviewed

    Yushi Kikuchi, Yoshihiko Horio, Shunsuke Fukami, Hiroyasu Ando

    Proceedings of International Symposium on Nonlinear Theory and Its Applications　139-142　2022/12

    DOI： 10.34385/proc.71.A4L-D-04 　

  16. Stochastic Analysis and Price Mechanism of Car/Ride-Share System Considering Road Congestion Peer-reviewed

    Nakamura, Ayane, Phung-Duc, Tuan, Ando, Hiroyasu

    5　(2)　1-27　2022

  17. Queueing Model of Circular Demand Responsive Transportation System: Theoretical Solution and Heuristic Solution Peer-reviewed

    Ayane Nakamura, Tuan Phung-Duc, Hiroyasu Ando

    Proceedings of the 11th International Conference on Operations Research and Enterprise Systems　2022

    Publisher: SCITEPRESS - Science and Technology Publications

    DOI： 10.5220/0010845300003117 　

  18. Queueing Analysis of a Mixed Model of Public and Demand Responsive Transportations Peer-reviewed

    Ayane Nakamura, Tuan Phung-Duc, Hiroyasu Ando

    Lecture Notes in Computer Science　457-471　2021/11/27

    Publisher: Springer International Publishing

    DOI： 10.1007/978-3-030-91825-5_28 　

    ISSN： 0302-9743

    eISSN： 1611-3349

  19. Queueing analysis of a Car/Ride-Share system Peer-reviewed

    Ayane Nakamura, Tuan Phung-Duc, Hiroyasu Ando

    Annals of Operations Research　310　(2)　661-682　2021/10/16

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1007/s10479-021-04313-8 　

    ISSN： 0254-5330

    eISSN： 1572-9338

  20. Multiple transition of synchronization by interaction of external and internal forces in bursting oscillator networks Peer-reviewed

    Koyama, Keita, Ando, Hiroyasu, Fujiwara, Kantaro

    Nonlinear Theory and Its Applications, IEICE　3　(12)　545-553　2021/07

    Publisher: The Institute of Electronics, Information and Communication Engineers

    DOI： 10.1587/nolta.12.545 　

    ISSN： 2185-4106

    eISSN： 2185-4106

  21. Mathematical analysis of the effect of portal vein cells on biliary epithelial cell differentiation through the Delta-Notch signaling pathway International-journal Peer-reviewed

    Yoshihara, Masaharu, Nishino, Teppei, Yadav, Manoj Kumar, Kuno, Akihiro, Nagata, Takeshi, Ando, Hiroyasu, 高橋智

    BMC Research Notes　14　(1)　243-243　2021/06

    DOI： 10.1186/s13104-021-05656-y 　

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    OBJECTIVE: The Delta-Notch signaling pathway induces fine-grained patterns of differentiation from initially homogeneous progenitor cells in many biological contexts, including Drosophila bristle formation, where mathematical modeling reportedly suggests the importance of production rate of the components of this signaling pathway. In contrast, the epithelial differentiation of bile ducts in the developing liver is unique in that it occurs around the portal vein cells, which express extremely high amounts of Delta ligands and act as a disturbance for the amount of Delta ligands in the field by affecting the expression levels of downstream target genes in the cells nearby. In the present study, we mathematically examined the dynamics of the Delta-Notch signaling pathway components in disturbance-driven biliary differentiation, using the model for fine-grained patterns of differentiation. RESULTS: A portal vein cell induced a high Notch signal in its neighboring cells, which corresponded to epithelial differentiation, depending on the production rates of Delta ligands and Notch receptors. In addition, this epithelial differentiation tended to occur in conditions where fine-grained patterning was reported to be lacking. These results highlighted the potential importance of the stability towards homogeneity determined by the production rates in Delta ligands and Notch receptors, in a disturbance-dependent epithelial differentiation.

  22. A model of computing with road traffic dynamics Peer-reviewed

    Ando, Hiroyasu, Chang, Hanten

    Nonlinear Theory and Its Applications, IEICE　12　(2)　175-180　2021/04

    Publisher: The Institute of Electronics, Information and Communication Engineers

    DOI： 10.1587/nolta.12.175 　

    ISSN： 2185-4106

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    Reservoir computing derived from recurrent neural networks is more applicable to real world systems than deep learning because of its low computational cost and potential for physical implementation. Specifically, physical reservoir computing, which replaces the dynamics of reservoir units with physical phenomena, has recently received considerable attention. In this study, we propose a method of exploiting the dynamics of road traffic as a reservoir, and numerically confirm its feasibility by applying several prediction tasks based on a simple mathematical model of the traffic flow.

  23. Decentralized algorithms for consensus-based power packet distribution Peer-reviewed

    Baek, Seongcheol, Ando, Hiroyasu, Hikihara, Takashi

    Nonlinear Theory and Its Applications, IEICE　12　(2)　181-193　2021/04

    Publisher: The Institute of Electronics, Information and Communication Engineers

    DOI： 10.1587/nolta.12.181 　

    ISSN： 2185-4106

    eISSN： 2185-4106

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    Power packets are proposed as a transmission unit that can deliver power and information simultaneously. They are transferred using the store-and-forward method of power routers. A system that achieves power supply/demand in this manner is called a power packet network (PPN). A PPN is expected to enhance structural robustness and operational reliability in an energy storage system (ESS) with recent diverse distributed sources. However, this technology is still in its early stage and faces numerous challenges, such as high cost of implementation and complicated energy management. In this paper, we propose a novel power control based on decentralized algorithms for a PPN. Specifically, the power supply is triggered and managed by communications between power routers. We also discuss the mechanism of the decentralized algorithm for the operation of power packets and reveal the feasibility of the given control method and application by forming biased power flows on the consensus-based distribution.

  24. Decentralized learning with virtual patients for medical diagnosis of diabetes. Peer-reviewed

    Yuta, Takahashi, Han-ten, Chang, Akie, Nakai, Rina, Kagawa, Hiroyasu, Ando, Akira, Imakura, Yukihiko, Okada, Hideo, Tsurushima, Kenji, Suzuki, Tetsuya, Sakurai

    SN Computer Science　2　(239)　2021/04

  25. Predicting traffic breakdown in urban expressways based on simplified reservoir computing Peer-reviewed

    Okamoto, Taiga, Ando, Hiroyasu, Wada, Kentaro, Mukai, Risa, Nishiumi, Yoshifumi, Tamagawa, Dai

    Proceedings of AAAI 2021 AI for Urban Mobility Workshop　2021/02

  26. Foot traffic prediction for large-scale events based on pattern-aware neural regression Peer-reviewed

    Okukubo, Takafumi, Bando, Yoshiaki, Onishi, Masaki, Ando, Hiroyasu

    Proceedings of AAAI 2021 AI for Urban Mobility Workshop　2021/02

  27. Queueing Analysis and Price Mechanism of Car/Ride-Share System Considering Road Congestion

    Ayane, Nakamura, Tuan, Phung-Duc, 安東 弘泰

    第37回（2020年度）待ち行列シンポジウム「確率モデルとその応用」　89-98　2021/01

  28. Effect of external and internal forces on synchronization of bursting oscillator networks Peer-reviewed

    Koyama, Keita, Hiroyasu, Ando, Fujiwara, Kantaro

    Proceedings of The 2020 International Symposium on Nonlinear Theory and Its Applications (NOLTA2020)　2020/11

  29. A Stochastic Model for Car/Ride-Share Service by a Bus Company Peer-reviewed

    Ayane, Nakamura, Tuan, Phung-Duc, Hiroyasu, Ando

    Proceedings of The 2020 International Symposium on Nonlinear Theory and Its Applications (NOLTA2020)　312-315　2020/11

  30. Privacy‑Preserving Data Sharing by Integrating Perturbed Distance Matrices Peer-reviewed

    Chang, Hanten, Ando, Hiroyasu

    SN Computer Science　1　(3)　121　2020/05

  31. Consensus-based distribution of power packets and decentralized control for routing Peer-reviewed

    Baek, Seongcheol, Ando, Hiroyasu, Hikihara, Takashi

    AIP CHAOS　30　(3)　033115　2020/03

    Publisher: AIP

    DOI： 10.1063/1.5134735 　

    ISSN： 1054-1500

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    A power packet distribution network is expected to be one of the advanced power distribution systems, providing high controllability in both energy management and failure management. Regarding network operations, the power packet transmission is governed by switching operation within each of the routers. Here, the power distribution through power packets exhibits consensus-like dynamical behaviors. These features lead to the question of a consensus dynamics on switching topology and routing controls for appropriate power flows. Our approach to the above subjects is based on the dynamical modeling and the emulation of dynamics through the decentralized control of routers. The simulations on a ring-structure network, of the power distribution, reveal that the dynamical solution of the unbiased distribution is feasible via the decentralized control, while in the biased case, the result shows two behavioral fragments, which is quite different from the dynamical solution. In this discussion, we propose a decentralized algorithm that contains only fundamental functions for the packet transmission and is able to be redesigned or extended for further applications.

  32. Privacy Preserving Data Sharing by Integrating Perturbed Distance Matrices Peer-reviewed

    Chang, Hanten, Ando, Hiroyasu

    Proc. of The AAAI Workshop on Privacy-Preserving Artificial Intelligence @AAAI-20　2020/02

  33. Experiments of miniature traffic models and comparison with the optimal velocity model

    Ando,Hiroyasu, Okamoto,Taiga, Noguchi,Takahiro

    Proceedings of the Japan Joint Automatic Control Conference　63　704-707　2020

    Publisher: The Japan Joint Automatic Control Conference

    DOI： 10.11511/jacc.63.0_704 　

  34. 待ち行列理論を用いたカーシェアリングとライドシェアリングの混合モデル

    中村, 彩音, Tuan, Phung-Duc, 安東, 弘泰

    待ち行列シンポジウム「確率モデルとその応用」　98-107　2020/01

  35. レゴブロックを用いた地域交通課題解決の提言 -つくば市及び北海道道北部を対象に-

    下津大輔, 太田和志, ソルステインソン慧グンナル, 橋村ちひろ, 加古捺巳, 辻本隆宏, 野口宇宙, 安東, 弘泰, 大澤義明

    第17回ITSシンポジウム2019　2019/12

  36. Causal Effect Estimation Dealing with Latent Non-Gaussian Confounders Peer-reviewed

    Chang, Hanten, Ando, Hiroyasu, Kobayashi, Yusuke

    Proc. of International Symposium on Nonlinear Theory and its Applications 2019 (NOLTA2019)　36-37　2019/12

  37. Dynamical Effect of Syntrophic Association on a Bacterial Community Composition Peer-reviewed

    Nakaoka, Shinji, Ando, Hiroyasu

    Proc. of International Symposium on Nonlinear Theory and its Applications 2019 (NOLTA2019)　119-122　2019/12

  38. A Simulation Study of Energy Propagation in Bio-Mimetic Networks Peer-reviewed

    Kawawa, Keiga, Ando, Hiroyasu

    Proc. of International Symposium on Nonlinear Theory and its Applications 2019 (NOLTA2019)　123-126　2019/12

  39. Power Packet Distribution Problem on Switching Topology with Demanding Nodes Through Consensus-Based Approach Peer-reviewed

    Baek, Seongcheol, Ando, Hiroyasu, Hikihara, Takashi

    Proc. of International Symposium on Nonlinear Theory and its Applications 2019 (NOLTA2019)　177-178　2019/12

  40. 時間遅れフィードバック法を用いたポテンシャル中のブラウン運動の制御

    小林幹, 安東, 弘泰

    自動制御連合講演会講演論文集　62　2019/11

  41. システムに対するリザバー計算の予測性能評価

    安東, 弘泰, 小林幹

    自動制御連合講演会講演論文集　62　2019/11

  42. Queueing Analysis for a Mixed Model of Carsharing and Ridesharing Peer-reviewed

    Nakamura, Ayane, Tuan, Phung-Duc, Ando, Hiroyasu

    Lecture Notes in Computer Science　12023　42-56　2019/10

    Publisher: Springer

    DOI： 10.1007/978-3-030-62885-7_4 　

  43. 待ち行列理論を用いたカーシェアリングとライドシェアリングの混合モデルに関する検討

    中村, 彩音, Tuan, Phung-Duc, 安東, 弘泰

    ２０１９年度日本オペレーションズ・リサーチ学会秋季研究発表会　2019/09

  44. エコーステートネットワークの予測能力に関する活性化関数の影響

    張, 瀚天, 中岡慎治, 安東, 弘泰

    電子情報通信学会 技術研究報告　119　(157)　27-30　2019/08

  45. 生体模倣ネットワークモデルにおけるエネルギー伝搬のシミュレーション

    川勾啓雅, 安東, 弘泰

    電子情報通信学会 技術研究報告　118　(519)　49-54　2019/03

  46. 自律分散システムにおける余剰電力取引に関する基礎的検討

    會田拓海, 安東, 弘泰

    電子情報通信学会 技術研究報告　118　(519)　37-42　2019/03

  47. 大学を拠点とするモビリティサービス

    安東 弘泰, 髙原 勇, 大澤, 義明

    ｵﾍﾟﾚｰｼｮﾝｽﾞ・ﾘｻｰﾁ　64　(8月)　447-452　2019

    Publisher: The Operations Research Society of Japan

    ISSN： 0030-3674

  48. 複数内部状態をもつモバイル振動子ネットワークの同期

    岡本大河, 安東, 弘泰

    第61回自動制御連合講演会　2018/11

  49. 時間遅れフィードバック制御の確率システムへの応用

    安東, 弘泰, 小林幹, 竹原浩太

    第61回自動制御連合講演会　2018/11

  50. A bio-inspired power sharing model in consensus networks Peer-reviewed

    Ando, Hiroyasu, Hikihara, Takashi

    Proc. of International Symposium on Nonlinear Theory and its Applications 2018 (NOLTA2018)　84-85　2018/09

  51. Control of deterministic diffusion in chaotic systems with time-delayed feedback control Peer-reviewed

    Kobayashi, Miki U, Ando, Hiroyasu

    Proc. of International Symposium on Nonlinear Theory and its Applications 2018 (NOLTA2018)　122　2018/09

  52. Automata Modeling on Power Packet Distribution Network for Power Flow Analysis Peer-reviewed

    Baek, Seongcheol, Ando, Hiroyasu, Hikihara, Takashi

    Proc. of International Symposium on Nonlinear Theory and its Applications 2018 (NOLTA2018)　465-467　2018/09

  53. Generative Adversarial Network-Based Approach to Signal Reconstruction from Magnitude Spectrogram Peer-reviewed

    Oyamada, Keisuke, Kameoka, Hirokazu, Kaneko, Takuhiro, Tanaka, Kou, Hojo, Nobukatsu, Ando, Hiroyasu

    Proc. of 26th European Signal Processing Conference　2528-2532　2018/09

  54. A resource sharing model in a power packet distribution network Peer-reviewed

    Ando, Hiroyasu, Takahashi, Ryo, Azuma, Shun-ichi, Hasegawa, Mikio, Yokoyama, Tomoki, Hikihara, Takashi

    Proc. of the 2018 International Power Electronics Conference　3665-3669　2018/05

  55. A Study on Distributed Control of Power Packet Distribution Network based on Consensus Model (複雑コミュニケーションサイエンス) Peer-reviewed

    電子情報通信学会技術研究報告 = IEICE technical report : 信学技報　118　(76)　2018/01

    Publisher: 電子情報通信学会

    ISSN： 0913-5685

  56. A Study on Distributed Control of Power Packet Distribution Network based on Consensus Model (非線形問題) Peer-reviewed

    電子情報通信学会技術研究報告 = IEICE technical report : 信学技報　118　(75)　2018/01

    Publisher: 電子情報通信学会

    ISSN： 0913-5685

  57. Special issue on power distribution and processing

    Ando,Hiroyasu, Azuma,Shun-ichi

    NOLTA, IEICE　9　(3)　305-305　2018

    Publisher: The Institute of Electronics, Information and Communication Engineers

    DOI： 10.1587/nolta.9.305 　

    ISSN： 2185-4106

  58. Mathematical Model of TRPM2 Activation in Pancreatic β-cells Peer-reviewed

    Fujiwara, Kantaro, Ando, Hiroyasu, Ikeguchi, T, Yoshida, M, Kakei, M

    Proceedings of the 2017 Symposium on Nonlinear Theory and its Applications　387-390　2017/12

  59. A bio-inspired pattern dynamics of power flow in consensus networks Peer-reviewed

    Ando, Hiroyasu, Hasegawa, Mikio, Hikihara, Takashi

    Proceedings of the 2017 Symposium on Nonlinear Theory and its Applications　108-111　2017/12

  60. 膵β細胞の数理モデルにおけるノイズの影響について

    古城知祥, 安東, 弘泰, 藤原寛太郎, 吉田昌史, 加計正文

    電子情報通信学会 技術研究報告 CCS2017-25(2017-11)　25-28　2017/11

  61. Time-delayed feedback control of diffusion in random walkers Peer-reviewed

    Ando, Hiroyasu, Takehara, Kohta, Kobayashi, Miki U

    PHYSICAL REVIEW E　96　(1)　012148-12148　2017/07

    Publisher: AMER PHYSICAL SOC

    DOI： 10.1103/PhysRevE.96.012148 　

    ISSN： 1539-3755

    More details Close

    Time delay in general leads to instability in some systems, while specific feedback with delay can control fluctuated motion in nonlinear deterministic systems to a stable state. In this paper, we consider a stochastic process, i.e., a random walk, and observe its diffusion phenomenon with time-delayed feedback. As a result, the diffusion coefficient decreases with increasing delay time. We analytically illustrate this suppression of diffusion by using stochastic delay differential equations and justify the feasibility of this suppression by applying time-delayed feedback to a molecular dynamics model.

  62. Power Processing for Advanced Power Distribution and Control Peer-reviewed

    Ryo Takahashi, Shun-ichi Azuma, Mikio Hasegawa, Hiroyasu Ando, Takashi Hikihara

    IEICE TRANSACTIONS ON COMMUNICATIONS　E100B　(6)　941-947　2017/06

    DOI： 10.1587/transcom.2016EBN0005 　

    ISSN： 0916-8516

    eISSN： 1745-1345

  63. Power processing for advanced power distribution and control Peer-reviewed

    Ryo Takahashi, Shun-Ichi Azuma, Mikio Hasegawa, Hiroyasu Ando, Takashi Hikihara

    IEICE Transactions on Communications　E100B　(6)　941-947　2017/06/01

    Publisher: Maruzen Co., Ltd.

    DOI： 10.1587/transcom.2016EBN0005 　

    ISSN： 1745-1345 0916-8516

  64. TRPM2チャネルの膜電位特性の数理モデル解析 Peer-reviewed

    藤原寛太郎, 安東, 弘泰, 池口徹, 吉田昌史, 加計正文

    第60回日本糖尿病学会年次学術集会論文集　2017/05

  65. IoT車両情報による実測燃費の地域特性分析―豊田市実証実験の気候と速度域別の実測燃費― Peer-reviewed

    髙原勇, 安東,弘泰, 大澤義明

    環境共生　30　65-72　2017/03

    Publisher: 日本環境共生学会本部事務局

    ISSN： 1346-3489

  66. ブロック玩具によるプロジェクションマッピング模型を用いた地域設計の検討

    松林道雄, 野口宇宙, 小山田圭佑, 村山透, 安東弘泰, 高原勇, 大澤, 義明

    第40回情報・システム・利用・技術シンポジウム2017　307-310　2017

    Publisher: 日本建築学会・情報システム技術委員会

  67. Control of stochastic diffusion by time-delayed feedback 2

    Kobayashi,Miki, Ando,Hiroyasu, Yamada,Michio

    Proceedings of the Japan Joint Automatic Control Conference　60　(0)　775-776　2017

    Publisher: The Japan Joint Automatic Control Conference

    DOI： 10.11511/jacc.60.0_775 　

  68. Non-native speech conversion with consistency-aware recursive network and generative adversarial network Peer-reviewed

    Keisuke Oyamada, Hirokazu Kameoka, Takuhiro Kaneko, Hiroyasu Ando, Kaoru Hiramatsu, Kunio Kashino

    2017 ASIA-PACIFIC SIGNAL AND INFORMATION PROCESSING ASSOCIATION ANNUAL SUMMIT AND CONFERENCE (APSIPA ASC 2017)　182-188　2017

    ISSN： 2309-9402

  69. A Simulation Study of an Algorithm for Distributing Power Packets in a Network Peer-reviewed

    Ando,Hiroyasu, Shun-ichi,Azuma, Ryo,Takahashi

    Proceedings of the 2016 Symposium on Nonlinear Theory and its Applications　2016/11

  70. IoT実測燃費の経路特性解析－制限速度の可変性に向けて－

    高原勇, 安東弘泰, 大澤義明

    ｵﾍﾟﾚｰｼｮﾝｽﾞ・ﾘｻｰﾁ学会2016年秋季研究発表会　2016　102-103　2016/09

    ISSN： 1883-1893

  71. IoT実測燃費の気候特性解析－自動運転の知能化に向けて－

    安東弘泰, 高原勇, 大澤義明

    ｵﾍﾟﾚｰｼｮﾝｽﾞ・ﾘｻｰﾁ学会2016年秋季研究発表会　2016　100-101　2016/09

    ISSN： 1883-1893

  72. 時間遅れフィードバックによる確率的拡散の制御

    Ando, Hiroyasu, 小林幹

    電子情報通信学会技法　116　(151)　7-8　2016/07

  73. Numerical analysis of bursting activity in an isolated pancreatic β-cell model Peer-reviewed

    Ando,Hiroyasu, Kantaro,Fujiwara

    Nonlinear Theory and Its Applications, IEICE　7　(2)　217-225　2016/04

    Publisher: The Institute of Electronics, Information and Communication Engineers

    DOI： 10.1587/nolta.7.217 　

    ISSN： 2185-4106

    More details Close

    Pancreatic β-cells exhibit bursting electrical activity, which is correlated with insulin secretion. It has been reported that several ionic channels may contribute to the characteristic electrical activities of these cells but their mechanisms are still unclear. In this study, we examined how the characteristic electrical activity of isolated β-cells occurs. Using a simple mathematical model of pancreatic β-cells, we found that conductances of the voltage-sensitive mixed ion channel and voltage-sensitive potassium channel contribute to such electrical activity. In addition, we found that noise can play a key role in this activity. These results imply that the bursting electrical activity of pancreatic β-cells can be controlled by ionic conductances or noise. Such control enables medical application of β-cells in type II diabetes, wherein insulin secretion is difficult to control. Our findings may contribute to a novel treatment for type II diabetes.

  74. 20pPSA-45 Control of stochastic systems by time-delayed feedback

    Ando,H, Kobayashi,M. U

    日本物理学会講演概要集　71　(1)　2943-2943　2016/03

    Publisher: The Physical Society of Japan (JPS)

    DOI： 10.11316/jpsgaiyo.71.1.0_2943 　

    ISSN： 2189-079X

  75. 22pBU-7 Control of stochastic processes by time-delayed feedback

    Kobayashi,M. U, Ando,H

    日本物理学会講演概要集　71　(1)　3141-3141　2016/03

    Publisher: The Physical Society of Japan (JPS)

    DOI： 10.11316/jpsgaiyo.71.1.0_3141 　

    ISSN： 2189-079X

  76. A simulation study of a mobile oscillator network with fixed nodes

    OSHIMA,Yuki, FUJIWARA,Naoya, AIHARA,Kazuyuki, ANDO,Hiroyasu

    SEISAN KENKYU　68　(3)　247-250　2016

    Publisher: Institute of Industrial Science The University of Tokyo

    ISSN： 0037-105X

    More details Close

    A mobile oscillator network, which is a kind of temporal networks, is of interest due to a variety of its applications such as mobile communication. In this study, we investigate the time required for synchronization of all the nodes in a mobile oscillator network, especially regarding effects of fixed nodes on the synchronization time. According to our simulation, there exists an optimal ratio of the number of fixed nodes to that of mobile ones in order to reduce the synchronization time. Furthermore, we analytically estimate the synchronization time with respect to the number of fixed nodes.

  77. Control of diffusion in many-particle system by time-delayed feedback

    Ando,H, Kobayashi,M. U

    Proceedings of the Japan Joint Automatic Control Conference　59　(0)　1094-1095　2016

    Publisher: The Japan Joint Automatic Control Conference

    More details Close

    <p>Based on the observation that diffusion in random walk of a single walker can be controlled by time-delayed feedback, we apply the control method to many-particle system. As a target system, random walk model with many particles and molecular dynamics models are focused. Moreover, we investigate the effectiveness of a degraded control scheme toward application to real world systems.</p>

  78. Control of stochastic diffusion by time-delayed feedback

    Kobayashi,M.U, Ando,H

    Proceedings of the Japan Joint Automatic Control Conference　59　(0)　237-238　2016

    Publisher: The Japan Joint Automatic Control Conference

    More details Close

    <p>Time-delayed feedback method is known as control method for chaotic dynamics. We apply the feedback method to a stochastic system, especially a random walk model, and demonstrate numerical simulations. As a result, it is observed that the diffusion due to the stochastic term in the model can be controlled by the time-delayed feedback. Additionally, we analyze the system theoretically by using stochastic delay differential equations and transfer functions.</p>

  79. Consensus Dynamics in Switching Networks for Distributing Power Packets Peer-reviewed

    Hiroyasu Ando, Shun-ichi Azuma, Ryo Takahashi

    IFAC PAPERSONLINE　49　(22)　351-354　2016

    DOI： 10.1016/j.ifacol.2016.10.422 　

    ISSN： 2405-8963

  80. Influence of ionic currents on a simple model for pancreatic beta cells Peer-reviewed

    Hiroyasu,Ando, Kantaro,Fujiwara

    Proc. of International Symposium on Nonlinear Theory and its Applications 2015 (NOLTA2015)　2015/12

  81. 時間遅れフィードバック法を用いたナノデバイスの揺らぎの制御

    小林幹, 安東,弘泰

    第５８回自動制御講演会論文集　2015/11

  82. モバイル振動子ネットワークの同期における固定素子の影響

    大島佑起, 藤原直哉, 安東,弘泰

    信学技報（IEICE Technical Report）　IEICE-115　(no.300)　29-33　2015/11

  83. Communicability angles reveal critical edges for network consensus dynamics Peer-reviewed

    Ernesto Estrada, Eusebio Vargas-Estrada, Hiroyasu Ando

    PHYSICAL REVIEW E　92　(5)　052809-1-052809-10　2015/11

    DOI： 10.1103/PhysRevE.92.052809 　

    ISSN： 1539-3755

    eISSN： 1550-2376

  84. A Feedback Control of Fluctuations in Simple Molecular Dynamics Peer-reviewed

    Hiroyasu,Ando, Miki,U. Kobaysahi

    Proc. of the 4th IFAC Conference on Analysis and Control of Chaotic Systems, CHAOS 2015　262-266　2015/08

  85. 21aPS-26 Control of stochastic processes by time-delayed feedback : Method and analysis

    Ando,H, Kobayashi,M. U

    日本物理学会講演概要集　70　(1)　2871-2871　2015/03

    Publisher: The Physical Society of Japan (JPS)

    DOI： 10.11316/jpsgaiyo.70.1.0_2871 　

    ISSN： 2189-079X

  86. 21aPS-27 Control of stochastic processes by time-delayed feedback : Toward applications of nano-systems

    Kobayashi,M. U, Ando,H

    日本物理学会講演概要集　70　(1)　2872-2872　2015/03

    Publisher: The Physical Society of Japan (JPS)

    DOI： 10.11316/jpsgaiyo.70.1.0_2872 　

    ISSN： 2189-079X

  87. 時間遅れフィートバックを用いた確率過程の制御 –理論的考察 –

    安東,弘泰, 小林幹

    第57回自動制御連合講演会論文集　1034-1035　2014/11

  88. Control of stochastic processes with time delayed feedback control --- Toward applications to nano-systems ---

    小林幹, 安東,弘泰

    Proceedings of the Japan Joint Automatic Control Conference　57　1019-1020　2014/11

    Publisher: The Japan Joint Automatic Control Conference

    DOI： 10.11511/jacc.57.0_1019 　

    More details Close

    粒子のスケールが原子サイズに近くなるにつれて熱拡散の影響は無視出来なくなる．最近，熱拡散下で運動する粒子の運動を制御する方法が遅れフィードバック法を拡張する事で実現された[安東氏の講演]．本講演では，この手法をナノ粒子の運動やナノデバイスの制御に適用した結果を報告する予定である．

  89. Communication Robustness in Graphs Measured by the Communicability Peer-reviewed

    Ando,Hiroyasu, Ernesto,Estrada

    Proc. of International Symposium on Nonlinear Theory and its Applications 2014 (NOLTA2014)　533-536　2014/09

  90. 時間遅れフィードバックによるランダムウォークの抑制

    安東,弘泰

    第56回自動制御連合講演会論文集　1216-1217　2013/11

  91. Adaptive Control of Transient Dynamics to Periodic Orbits Peer-reviewed

    Ando,Hiroyasu, Aihara,Kazuyuki

    Proceedings of the 2013 International Symposium on Nonlinear Theory and its Applications　82-85　2013/09

  92. State concentration exponent as a measure of quickness in Kauffman-type networks Peer-reviewed

    Shun-ichi Amari, Hiroyasu Ando, Taro Toyoizumi, Naoki Masuda

    PHYSICAL REVIEW E　87　(2)　022814-1-022814-6　2013/02

    DOI： 10.1103/PhysRevE.87.022814 　

    ISSN： 1539-3755

  93. Chaotic phase synchronization in bursting-neuron models driven by a weak periodic force Peer-reviewed

    Hiroyasu Ando, Hiromichi Suetani, Juergen Kurths, Kazuyuki Aihara

    PHYSICAL REVIEW E　86　(1)　016205-1-016205-11　2012/07

    DOI： 10.1103/PhysRevE.86.016205 　

    ISSN： 1539-3755

  94. Manipulating potential wells in Logical Stochastic Resonance to obtain XOR logic Peer-reviewed

    Remo Storni, Hiroyasu Ando, Kazuyuki Aihara, K. Murali, Sudeshna Sinha

    PHYSICS LETTERS A　376　(8-9)　930-937　2012/02

    DOI： 10.1016/j.physleta.2011.12.036 　

    ISSN： 0375-9601

  95. Synthetic gene networks as potential flexible parallel logic gates Peer-reviewed

    Hiroyasu Ando, Sudeshna Sinha, Remo Storni, Kazuyuki Aihara

    EPL　93　(5)　50001-1-50001-6　2011/03

    DOI： 10.1209/0295-5075/93/50001 　

    ISSN： 0295-5075

  96. 遺伝子トグルスイッチによる並列論理ゲート

    安東,弘泰, Storni,Remo, Sinha,Sudeshna, 合原一幸

    Technical Report of IEICE(The Institute of Electonics, Information and Communication Engineers)　110　(122)　43-45　2010/07

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN： 0913-5685

    More details Close

    We show how a synthetic gene network can operate, in an adequate range of noise, as a logic gate. Interestingly, noise enhances the reliability of the logic function. In this paper, we consider a two-dimensional model of a genetic toggle switch, where we show how two complementary gate operations can be achieved in simultaneously. This result indicates the parallel processing ability of this biological system.

  97. スイッチト・キャパシタカオスニューロン回路による適応的フィードバックカオス制御の回路実験

    谷田部春樹, 堀尾喜彦, 安東弘泰

    電子情報通信学会技術報告　110　(82)　225-230　2010/06/19

  98. Studying the Economy of Energy Expenditure in a Large Balanced Spiking Neuron Network Peer-reviewed

    H. Ando, K. Karthik, V. S. Chakravarthy

    2010 INTERNATIONAL JOINT CONFERENCE ON NEURAL NETWORKS IJCNN 2010　3847-3851　2010

    ISSN： 2161-4393

  99. Applications of High-Dimensional Chaotic Dynamics to Complex Computational Systems

    Yoshihiko Horio, Hiroyasu Ando, Kazuyuki Aihara

    INTERNATIONAL CONFERENCE ON APPLICATIONS IN NONLINEAR DYNAMICS (ICAND 2010)　1339　260-+　2010

    DOI： 10.1063/1.3574862 　

    ISSN： 0094-243X

  100. カオスニューロダイナミクスの適応的制御

    安東,弘泰, 堀尾喜彦, 合原一幸

    第52回自動制御連合講演会論文集　D3-4-1-D3-4-4　2009/11

  101. 複雑計算システムの基盤技術

    堀尾喜彦, 安東,弘泰, 合原一幸

    Fundamentals Review（電子情報通信学会基礎・境界ソサイエティ機関誌）　3　(2)　34-44　2009/10

  102. Chaotic Synchronization and De-synchronization for a Token-based Computational Architecture Peer-reviewed

    Ando,Hiroyasu, Peper,Ferdinand, Aihara,Kazuyuki

    Proceedings of the 2009 International Symposium on Nonlinear Theory and its Applications　647-650　2009/10

  103. 適応的時間遅れフィードバック制御とその応用

    安東,弘泰, 合原一幸

    第58回理論応用力学講演会講演論文集　237-238　2009/06

    Publisher: 土木学会

  104. Measurement of Switched Capacitor Chaotic Neuron Circuit Controlled by Adaptive Feedback Method Peer-reviewed

    Nakano,Aki, Ando,Hiroyasu, Horio,Yoshihiko, Aihara,Kazuyuki

    Proceedings of the 2009 RISP International Workshop on Nonlinear Circuits and Signal Processing　209-212　2009/03

  105. Adaptive Feedback Control of Chaotic Neurodynamics in Analog Circuits Peer-reviewed

    Hiroyasu Ando, Aki Nakano, Yoshihiko Horio, Kazuyuki Aihara

    ISCAS: 2009 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-5　2621-+　2009

  106. Emergent organization of oscillator clusters in coupled self-regulatory chaotic maps Peer-reviewed

    Hiroyasu Ando, Sudeshna Sinha, Kazuyuki Aihara

    PRAMANA-JOURNAL OF PHYSICS　70　(6)　1153-1164　2008/06

    ISSN： 0304-4289

  107. An Automatic Feedback Adjustment Control in Chaotic Systems Peer-reviewed

    Ando, Hiroyasu, Boccaletti, Stefano, Aihara, Kazuyuki

    Abstracts of the 3rd International IEEE Scientific Conference on Physics and Control　2007/09

  108. Automatic Control and Tracking of Periodic Orbits in Chaotic Systems Peer-reviewed

    Ando,Hiroyasu, Boccaletti,Stefano, Aihara,Kazuyuki

    PHYSICAL REVIEW E　75　(6)　066211-1-066211-5　2007/06

    Publisher: AMER PHYSICAL SOC

    ISSN： 1539-3755

  109. Adaptation to the Edge of Chaos in One-Dimensional Chaotic Maps

    Ando,Hiroyasu, Aihara,Kazuyuki

    PHYSICAL REVIEW E　74　(6)　066205-1-066205-5　2006/12

    Publisher: AMER PHYSICAL SOC

    ISSN： 1539-3755

  110. Algorithm for Convergence to Superstable Periodic Solutions of the Logistic Map Peer-reviewed

    Ando,Hiroyasu, Aihara,Kazuyuki

    Proceedings of the 2004 International Symposium on Nonlinear Theory and its Applications　721-724　2004/12

  111. 積型フィードバック写像系の解析とその超安定周期解探索アルゴリズムへの応用

    安東,弘泰

    数理生物学会ニュースレター　43　20-20　2004/04

Show all ︎Show first 5

Misc. 4

  1. Dependency of observed fuel cost on velocity

    高原勇, 安東弘泰, 大澤義明

    日本環境共生学会学術大会発表論文集(CD-ROM)　19th　2016

  2. 20pEA-12 Chaotic Phase Synchronization in Bursting Neural Model

    Ando H., Suetani H., Aihara K.

    Meeting abstracts of the Physical Society of Japan　65　(1)　276-276　2010/03/01

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  3. 23aPS-80 On Phase Synchronization in Mixed-Mode Chaos

    Ando H., Suetani H., Aihara K.

    Meeting abstracts of the Physical Society of Japan　63　(2)　273-273　2008/08/25

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  4. 25pWD-6 Self-Organization Phenomena in Coupled Chaotic Maps with Two Different Time Scales

    Ando Hiroyasu

    Meeting abstracts of the Physical Society of Japan　63　(1)　309-309　2008/02/29

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

Books and Other Publications 1

  1. Recent Progress in Controlling Chaos

    Ando,Hiroyasu, Boccaletti,Stefano, Aihara,Kazuyuki

    2010/01

Presentations 46

  1. Predicting traffic breakdown in urban expressways based on simplified reservoir computing International-presentation

    Okamoto, Taiga, Ando, Hiroyasu, Wada, Kentaro, Mukai, Risa, Nishiumi, Yoshifumi, Tamagawa, Dai

    AAAI-21 Workshop 3: AI for Urban Mobility　2021/02/28

  2. Predicting traffic breakdown in urban expressways based on simplified reservoir computing International-presentation

    Okamoto, Taiga, Ando, Hiroyasu, Wada, Kentaro, Mukai, Risa, Nishiumi, Yoshifumi, Tamagawa, Dai

    AAAI-21 Workshop 3: AI for Urban Mobility　2021/02/08

  3. Queueing Analysis and Price Mechanism of Car/Ride-Share System Considering Road Congestion

    Ayane, Nakamura, Tuan, Phung-Duc, 安東 弘泰

    第37回（2020年度）待ち行列シンポジウム「確率モデルとその応用」　2021/01/25

  4. 待ち行列理論を用いたカーシェアリングとライドシェアリングの混合モデル

    中村, 彩音, Tuan, Phung-Duc, 安東, 弘泰

    第36回（2019年度）待ち行列シンポジウム「確率モデルとその応用」　2020/01/22

  5. IoT車両情報を活用した事前燃費予測の検討 Invited

    安東,弘泰

    第 33 回応用地域学会 （ARSC）研究発表大会　2019/11/23

  6. 自律分散システムにおける余剰電力取引に関する基礎的検討

    會田拓海, 安東, 弘泰

    複雑コミュニケーションサイエンス研究会　2019/03/26

  7. 生体模倣ネットワークモデルにおけるエネルギー伝搬のシミュレーション

    川勾啓雅, 安東, 弘泰

    複雑コミュニケーションサイエンス研究会　2019/03/26

  8. 電力パケットネットワークモデルにおけるパワーの相互融通 Invited

    安東,弘泰

    電子情報通信学会総合大会　2019/03/22

  9. Prediction of Fuel and Electric Power Consumption of Hybrid Automobile by Using Measured Data in Toyota City International-presentation

    Goshima, Yuki, Takahara, Isamu, Ando, Hiroyasu

    2019 International Workshop on Cyber-Physical and Cyber Resilience　2019/03/20

  10. モバイル振動子ネットワークの同期におけるカオス的移動の効果

    岡本大河, 安東, 弘泰

    日本物理学会 2019年年次大会　2019/03/14

  11. 保育所への顔認証自動ドアの導入による送迎時間の動線変化についての考察

    笠井, 奈央, 大西, 正輝, 佐野, 幸恵, 安東, 弘泰

    DEIM2019　2019/03/04

  12. 複数内部状態をもつモバイル振動子ネットワークの同期

    岡本大河, 安東, 弘泰

    第61回自動制御連合講演会　2018/11/17

  13. 時間遅れフィードバック制御の確率システムへの応用

    安東, 弘泰, 小林幹, 竹原浩太

    第61回自動制御連合講演会　2018/11/17

  14. Time-delayed feedback control of diffusion in random walkers -Phenomena- International-presentation

    Ando,Hiroyasu

    675. WE-Heraeus Seminar: Delayed Complex Systems 2018　2018/07/02

  15. A Study on Distributed Control of Power Packet Distribution Network based on Consensus Model

    白, 成哲, 安東, 弘泰, 引原隆士

    複雑コミュニケーションサイエンス研究会　2018/06/08

  16. 電力パケット伝送ネットワークにおけるコンセンサスを有する電力ルータの分散的動作に関する検討

    白, 成哲, 安東, 弘泰, 引原隆士

    第62回システム制御情報学会研究発表講演会　2018/05/16

  17. オンラインニュースサイトにおけるネットワーク中心性尺度の活用

    須田雄士, 山中健雄, 安東弘泰, 岡田幸彦

    日本応用数理学会2017年度年会　2017/09/06

  18. 時間遅れフィードバックによるゆらぎの拡散制御 Invited

    安東, 弘泰

    マクロ経済動学の非線形数理RIMS共同研究　2017/08/08

  19. 時間遅れフィードバック制御による確率的システムの拡散制御〜理論的考察 Invited

    安東, 弘泰

    平成29年度第1回非線形系・複雑系理論応用研究会　2017/07/02

  20. 複雑ネットワークにおけるダイナミクスの予測 Invited

    Ando,Hiroyasu

    平成28年度第三回ブレインウェア工学研究会　2016/12/07

  21. 電力パケット分配モデルのシミュレーションによる検討

    Ando,Hiroyasu

    第60回システム制御情報学会研究発表講演会　2016/05/25

  22. 確率過程制御のための時間遅れフィードバック法

    小林幹, 安東,弘泰

    日本物理学会第71回年次大会　2016/03/19

  23. 時間遅れフィードバックによる確率システムの制御

    安東,弘泰, 小林幹

    日本物理学会第71回年次大会　2016/03/19

  24. Communicability 関数によるネットワーク上のダイナミクス解析について Invited

    安東,弘泰

    Complex networks winter session 2016　2016/03/07

  25. 時間遅れフィードバックを用いた確率過程の制御－ナノシステムへの応用に向けて－

    小林幹, 安東,弘泰

    日本物理学会, 2015年年次大会　2015/03/21

  26. 時間遅れフィードバックを用いた確率過程の制御 －制御法と解析－

    安東,弘泰, 小林幹

    日本物理学会, 2015年年次大会　2015/03/21

  27. Control of stochastic processes by time delayed feedback and its application International-presentation Invited

    Ando,Hiroyasu

    Conference on Nonlinear Systems and Dynamics CNSD15　2015/03

  28. Token-based Computation Driven by Deterministic Fluctuations

    Ando,Hiroyasu, Peper,Ferdinand, Aihara,Kazuyuki

    The 2nd International Symposium on Innovative Mathematical Modelling　2012/05/15

  29. Robustness for Threshold Control of One Dimensional Maps

    Ando,Hiroyasu

    2011 Kyoto Workshop on NOLTA　2011/11/30

  30. Flexible Parallel logic Gates by Synthetic Gene Networks

    Ando,Hiroyasu, Storni,Remo, Sinha,Sudeshna, Aihara,Kazuyuki

    The 1st International Symposium on Innovative Mathematical Modelling　2011/02/28

  31. Flexible Parallel Logic Gates by Synthetic Genetic Network International-presentation

    Ando,Hiroyasu, Storni,Remo, Sinha,Sudeshna, Aihara,Kazuyuki

    Dynamics Days Europe 2010　2010/09/06

  32. Chaos-driven Computing Structure on a Token-based Architecture Invited

    Ando,Hiroyasu, Peper,Ferdinand, Aihara,Kazuyuki

    1st International Workshop on Computing with Spatio-Temporal Dynamics 2010　2010/06/23

  33. バーストニューロンモデルのカオス位相同期現象

    安東,弘泰, 末谷大道, 合原一幸

    日本物理学会, 第65回年次大会　2010/03/20

  34. Chaotic Synchronization and De-synchronization for a Token-based Computational Framework Invited

    Ando,Hiroyasu, Peper,Ferdinand, Aihara,Kazuyuki

    Workshop on Fluctuation and Noise in Living Organisms II　2010/02/10

  35. 神経系モデルのカオス的バースト発火における位相同期現象について

    安東,弘泰, 末谷大道, 合原一幸

    日本物理学会, 2009年秋季大会　2009/09/25

  36. Chaotic Phase Synchronization in Neural Bursting Systems Driven by Weak Periodic Force International-presentation

    Ando,Hiroyasu, Suetani,Hiromichi, Aihara,Kazuyuki

    Conference on Dynamics of Systems Biology DSB 2009　2009/09/14

  37. Phase Synchronization in Mixed-mode Chaotic Systems International-presentation

    Ando,Hiroyasu, Suetani,Hiromichi, Aihara,Kazuyuki

    Dynamics Days 2009　2009/01/08

  38. 多重モード性を持つカオスにおける位相同期現象について

    安東,弘泰, 末谷大道, 合原一幸

    日本物理学会, 2008年秋季大会　2008/09/20

  39. An Evolutionary Migration Model with Adaptive Chaos Control

    Ando,Hiroyasu, Sinha,Sudeshna, Aihara,Kazuyuki

    The Second China-Japan Colloquium of Mathematical Biology 2008　2008/08/04

  40. 2つの時間スケールをもつ結合写像系における自己組織化現象

    安東,弘泰, Sinha,Sudeshna, 合原一幸

    日本物理学会, 第63回年次大会　2008/03/23

  41. Self-Organization of Oscillators in Chaotic Maps Coupled through Feedback Controlled Parametric Adjustments International-presentation

    Ando,Hiroyasu, Sinha,Sudeshna, Aihara,Kazuyuki

    Conference and Research Workshop: Perspectives in Nonlinear Dynamics　2007/07/16

  42. A New Method to Stabilize Periodic Orbits through Corrective Action Using Period Time Locking in Chaotic Dynamics

    Ando,Hiroyasu, Aihara,Kazuyuki

    International Workshop on Synchronization: Phenomena and Analyses 2006　2006/10/03

  43. Self-Adaptation to Stable Periodic States in Chaotic Systems International-presentation

    Ando,Hiroyasu, Aihara,Kazuyuki

    Dynamics Days Asia Pacific 2006　2006/07/12

  44. Detection of Superstable Periodic Orbits in Systems Describable by a One-dimensional Map International-presentation

    Ando,Hiroyasu, Aihara,Kazuyuki

    Dynamics Days 2006　2006/01/04

  45. Bifurcation Analysis of One-dimensional Maps by Transient Processes

    Ando,Hiroyasu, Aihara,Kazuyuki

    International Symposium on Complexity Modelling and its Application 2005　2005/11/21

  46. A Model of Imitation Dynamics by Mutually Adjusting Logistic Map

    Ando,Hiroyasu, Aihara,Kazuyuki

    International Symposium on Emergent Mechanisms of Communication in the Brain IEMC 2004　2004/03/01

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Research Projects 10

  1. 大規模データ時代のネットワーク最適化に対する実応用に向けた説明力のある手法開発

    繁野 麻衣子, 八森 正泰, 安東 弘泰, 佐野 良夫, 高野 祐一, 吉瀬 章子

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 基盤研究(B)

    Institution: 筑波大学

    2020/04/01 - 2024/03/31

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    ネットワーク上の問題を中心に，広く最適化問題に対して実応用を意識したモデル作成，アルゴリズム作成をおこなった． 光通信ネットワークの資源割当問題に対しては，大容量通信に対応すべく様々な通信ネットワークが考案されている．そのなかで，現用の通信粒度を考慮した通信ネットワークモデル上での耐故障性を考慮したネットワーク設計に加え，近未来のネットワークを対象としてより複雑化された条件下での最適化モデル作成や特徴比較を行った． 実応用を意識した生産スケジューリングでは，問題を適切に分解することで実時間での解決を可能にすると同時に，現場導入や条件追加をしやすいような単純なアルゴリズム開発を目指し，その性能評価をおこなった．また，資源制約のある生産スケジューリング問題に対しては，アルゴリズムを分解することでメタヒューリスティック解法の比較検討をおこなった． 大規模データを対象とした問題としては，コロナ禍のスマートフォン利用状況変化からの生活変化の観察，webアクセスログから外国人居住者の必要な情報の特定，取得データから市場を反映したデータを抽出するために独立に得られる指標に基づいてサンプルを抽出する手法開発などをおこなった． 一方で，データ取得が難しい問題として，移植における交換移植の可能性について検討した．移植数を増やす目的のために，要素数最大のポピュラーマッチングの適用可能性を検討した．そして，専門家の知見のもと移植モデルを作成してシミュレーションによりその効果を検証した．

  2. Controlling diffusion processes in stochastic systems through the time-delayed feedback method

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Rissho University

    2018/04/01 - 2023/03/31

  3. AI計算リソースとしての実交通ダイナミクスの活用技術の開発 Competitive

    安東弘泰

    System: JST 未来社会創造事業

    2019/11 - 2022/03

  4. オンデマンド膵臓刺激による2型糖尿病のデジタルコントロールの数理 Competitive

    安東 弘泰

    Offer Organization: 日本学術振興会

    System: 基盤研究(C)

    Category: 基盤研究(C)

    Institution: 筑波大学

    2019/04 - 2022/03

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    本研究では, ２型糖尿病患者の膵臓内の膵β細胞を物理的に刺激することにより、そのインスリン分泌機能を調整するための数理的アプローチを検討する。特に、機能不全となった細胞の数理モデル化や膵臓刺激設計法の開発を目的とする。本年度は、膵β細胞単一細胞の数理モデル解析を非線形ダイナミクス制御の観点から進めた。具体的には、膵β細胞の数理モデルとしてChayモデルとRizモデルに対してフィードバック制御システムを構築し、その制御過程を数値的に解析した。これにより、低いコストでかつオンデマンドに制御する方法論を構築した。これは、膵β細胞のもつ非線形ダイナミクスを、その機能改善のために効果的に活用するための刺激設計の方法論にも繋げられる。さらに、膵ベータ細胞のインスリン分泌に与えるイオンチャネルの影響を詳細に調査した。その結果TRPM2チャネルがカルシウム依存チャネルを活性化しインスリン分泌を促進する効果があることがわかった。加えて糖尿病疾患の医療データを秘匿性を保ったまま共有する技術に関する検討チームに加わって、実データ検証を行った。 以上の成果は、３本の査読付き国際誌論文、さらには1つの国内研究会において発表した。

  5. Network Design for Structural Stability: A Key Technology for IoT systems

    Azuma SHUN-ICHI

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Nagoya University

    2017/04/01 - 2021/03/31

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    In general, a network system is described by the combination of (i) network structure and (ii) component dynamics. For the analysis and design of a networked system, it is usually assumed that the information on both the network structure and the component dynamics is available. It is however often violated in real situations, especially with heterogeneous components. Therefore, it is desirable to establish a framework of the structural analysis and design, i.e., analysis and design in the case where the network structure is known but the component dynamics is (almost) unknown. This study has established a series of results on the structural issues.

  6. Optimization problems with time and it's applications on networks.

    SHIGENO Maiko

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: University of Tsukuba

    2016/04/01 - 2020/03/31

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    Our study has investigated algorithms from two points of view of network structure and time base. Both theory on network flow problems and practical algorithms for network optimization on the basis of real world problems were developed. In addition, modeling and solving methods for online scheduling were discussed from the time base approach. As link together big data analysis and our network research, we confirmed efficiency of a method using network structure for the parts not identifying by data analysis, a method performing iteratively machine learning for imbalanced data, and a method solving iteratively optimization problems for finding flexible solutions.

  7. SiCパワーデバイス応用による低容量小型パワー集積回路およびパワープロセッシング技術の研究開発 Competitive

    Offer Organization: 内閣府

    System: SIP（戦略的イノベーション創造プログラム）

    2014/09 - 2019/03

  8. A mathematical study on artificial stimulation to pancreas in type 2 diabetes Competitive

    ANDO Hiroyasu, KAKEI Masafumi, IKEGUCHI Tohru

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Challenging Exploratory Research

    Institution: University of Tsukuba

    2015/04 - 2018/03

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    In this research project, in order to develop a new remedy for type 2 diabetes, we propose a model of electric stimulation to pancreas. In particular, we investigate a mathematical model of a pancreatic beta cell which is related to insulin secretion for controlling blood glucose level. We obtained the following two results. 1) We observed a phenomenon promoting insulin secretion by simulating a reaction of beta cells to white Gaussian noise, that is, the frequency of bursting of the beta cell increases with increasing the amplitude of noise. 2) We proposed a model of the background current of the beta cell and reproduced behavior of the beta cell by simulation consistent with the experiment of the background current.

  9. 脳型システムの制御・同期現象を利用した大容量情報処理技術の構築及び開発 Competitive

    Offer Organization: 独立行政法人理化学研究所

    System: 基礎科学特別研究員研究費

    2009/04/01 - 2012/03/31

  10. A study of computational architecture using control by fluctuations in nonlinear systems Competitive

    ANDO Hiroyasu

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Research Activity Start-up

    Institution: The Institute of Physical and Chemical Research

    2009/10/01 - 2011/03/31

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    In this research, we have proposed a novel computational architecture exploiting noise-induced phenomena in the concept of harnessing noise in real world systems. In particular, we focused on two systems. One is the calculation system driven by fluctuations called Brownian circuits, which achieve computational universality. We have developed the theory of the Brownian circuits to work under deterministic noise, namely chaotic fluctuations, using chaotic synchronization. The other is a stochastic resonance theory for logical operations. We have applied this theory to higher dimensional systems such as a genetic network model and proposed a new method how to parallelize logic gates in such systems.

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