• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Research on fluctuated dynamic networks that quickly adapt to disturbance

Research Project

Project/Area Number 18K18000
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 60010:Theory of informatics-related
Research InstitutionOsaka University

Principal Investigator

Sudo Yuichi  大阪大学, 情報科学研究科, 助教 (50643665)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Discontinued (Fiscal Year 2020)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords個体群プロトコルモデル / 自己安定 / 緩安定 / 障害耐性 / 動的ネットワーク / リーダ選挙 / 分散コンピューティング / 頑健性 / 自己安定アルゴリズム / 自律復旧 / ゆらぎ / 分散アルゴリズム / 自己修復性
Outline of Final Research Achievements

In recent years, with the rise of IoT devices and the development of molecular robotics research, there has been a growing social demand for dynamic networks consisting of a huge number of mobile nodes with limited computational resources, such as sensor networks with IoT devices and molecular robots consisting of a large number of molecular devices. On the other hand, such networks are vulnerable to disturbances such as node failures and external attacks. To address this issue, we have developed an algorithm that can autonomously and rapidly restore the network to a normal state after a disturbance occurs. In the process of developing this algorithm, we have also solved various open problems in the related computational models.

Academic Significance and Societal Importance of the Research Achievements

「研究成果の概要」欄に記載した性質を持つ動的ネットワークは,個体群プロトコルモデルと呼ばれる計算モデルとして抽象化されて近年盛んに研究されている.一方で,外乱への耐性をネットワークに持たせるために多くの研究者が実現を検討する自己安定性(どのような異常状態に陥っても正常状態に復旧する性質)を持つアルゴリズムは,個体群プロトコルモデル上では主要なタスクに対し実現不可能であることが証明されている.このことは,このモデルの社会的実装において致命的な問題となる.本研究で開発した自律的かつ高速に正常状態に復旧するアルゴリズムは,この致命的な問題を低コストで解消するものであり,高い学術的・社会的意義を持つ.

Report

(3 results)
  • 2020 Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Research-status Report
  • Research Products

    (26 results)

All 2020 2019 2018 Other

All Int'l Joint Research (2 results) Journal Article (8 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 8 results,  Open Access: 2 results) Presentation (16 results) (of which Int'l Joint Research: 16 results,  Invited: 1 results)

  • [Int'l Joint Research] ネバダ大学ラスベガス校(米国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] ネバダ大学ラスベガス校(米国)

    • Related Report
      2018 Research-status Report
  • [Journal Article] Loosely Stabilizing Leader Election on Arbitrary Graphs in Population Protocols without Identifiers or Random Numbers2020

    • Author(s)
      SUDO Yuichi、OOSHITA Fukuhito、KAKUGAWA Hirotsugu、MASUZAWA Toshimitsu
    • Journal Title

      IEICE Transactions on Information and Systems

      Volume: E103.D Issue: 3 Pages: 489-499

    • DOI

      10.1587/transinf.2019FCP0003

    • NAID

      130007804163

    • ISSN
      0916-8532, 1745-1361
    • Year and Date
      2020-03-01
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Loosely-stabilizing leader election with polylogarithmic convergence time2020

    • Author(s)
      Sudo Yuichi、Ooshita Fukuhito、Kakugawa Hirotsugu、Masuzawa Toshimitsu、Datta Ajoy K.、Larmore Lawrence L.
    • Journal Title

      Theoretical Computer Science

      Volume: 806 Pages: 617-631

    • DOI

      10.1016/j.tcs.2019.09.034

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Leader Election Requires Logarithmic Time in Population Protocols2020

    • Author(s)
      Sudo Yuichi、Masuzawa Toshimitsu
    • Journal Title

      Parallel Processing Letters

      Volume: 30 Issue: 01 Pages: 2050005-2050005

    • DOI

      10.1142/s012962642050005x

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Move-optimal partial gathering of mobile agents without identifiers or global knowledge in asynchronous unidirectional rings2020

    • Author(s)
      Masahiro Shibata, Norikazu Kawata, Yuichi Sudo, Fukuhito Ooshita, Hirotsugu Kakugawa, and Toshimitsu Masuzawa
    • Journal Title

      Theoretical Computer Science

      Volume: - Pages: 92-109

    • DOI

      10.1016/j.tcs.2020.04.002

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Time-Optimal Leader Election in Population Protocols2020

    • Author(s)
      Sudo Yuichi、Ooshita Fukuhito、Izumi Taisuke、Kakugawa Hirotsugu、Masuzawa Toshimitsu
    • Journal Title

      IEEE Transactions on Parallel and Distributed Systems

      Volume: 31 Issue: 11 Pages: 2620-2632

    • DOI

      10.1109/tpds.2020.2991771

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dynamic Ring Exploration with (H,S) View2020

    • Author(s)
      Gotoh Tsuyoshi、Sudo Yuichi、Ooshita Fukuhito、Masuzawa Toshimitsu
    • Journal Title

      Algorithms

      Volume: 13 Issue: 6 Pages: 141-141

    • DOI

      10.3390/a13060141

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Energy Balancing by Wireless Energy Transfer in Sensor Networks2019

    • Author(s)
      Michizu Hiroshi、Sudo Yuichi、Kakugawa Hirotsugu、Masuzawa Toshimitsu
    • Journal Title

      International Journal of Networking and Computing

      Volume: 9 Issue: 2 Pages: 239-256

    • DOI

      10.15803/ijnc.9.2_239

    • NAID

      130007680112

    • ISSN
      2185-2839, 2185-2847
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Loosely-stabilizing leader election for arbitrary graphs in population protocol model2019

    • Author(s)
      Yuichi Sudo, Fukuhito Ooshita, Hirotsugu Kakugawa, Toshimitsu Masuzawa, Ajoy K. Datta, and Lawrence L. Larmore
    • Journal Title

      IEEE Transactions on Parallel and Distributed Systems

      Volume: 30 Issue: 6 Pages: 1359-1373

    • DOI

      10.1109/tpds.2018.2881125

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Self-Stabilizing Construction of a Minimal Weakly ST-Reachable Directed Acyclic Graph2020

    • Author(s)
      Junya Nakamura, Masahiro Shibata, Yuichi Sudo, and Yonghwan Kim
    • Organizer
      In Proceedings of The 39th International Symposium on Reliable Distributed Systems
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The Power of Global Knowledge on Self-stabilizing Population Protocols2020

    • Author(s)
      Yuichi Sudo, Masahiro Shibata, Yonghwan Kim, Junya Nakamura, Toshimitsu Masuzawa
    • Organizer
      27th International Colloquium on Structural Information and Communication Complexity
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Logarithmic Expected-Time Leader Election in Population Protocol Model2019

    • Author(s)
      Yuichi Sudo, Fukuhito Ooshita, Taisuke Izumi, Hirotsugu Kakugawa, and Toshimitsu Masuzawa
    • Organizer
      21st International Symposium on Stabilization, Safety, and Security of Distributed Systems
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Improved-Zigzag: An improved local-information based self-optimizing routing algorithm in virtual grid networks2019

    • Author(s)
      Yonghwan Kim, Masahiro Shibata, Yuichi Sudo, Junya Nakamura, Yoshiaki Katayama, and Toshimitsu Masuzawa
    • Organizer
      21st International Symposium on Stabilization, Safety, and Security of Distributed Systems
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A Self-stabilizing 1-maximal Independent Set Algorithm2019

    • Author(s)
      Hideyuki Tanaka, Yuichi Sudo, Hirotsugu Kakugawa, Toshimitsu Masuzawa, and Ajoy K. Datta
    • Organizer
      21st International Symposium on Stabilization, Safety, and Security of Distributed Systems
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Atomic Cross-Chain Swaps with Improved Space and Local Time Complexity2019

    • Author(s)
      Soichiro Imoto, Yuichi Sudo, Hirotsugu Kakugawa, and Toshimitsu Masuzawa
    • Organizer
      21st International Symposium on Stabilization, Safety, and Security of Distributed Systems
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Exploration of dynamic ring networks by a single agent with the H-hops and S-time steps view2019

    • Author(s)
      Tsuyoshi Gotoh, Yuichi Sudo, Fukuhito Ooshita, and Toshimitsu Masuzawa
    • Organizer
      21st International Symposium on Stabilization, Safety, and Security of Distributed Systems
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Brief Announcement: Self-Stabilizing Construction of a Minimal Weakly ST-Reachable Directed Acyclic Graph2019

    • Author(s)
      Junya Nakamura, Masahiro Shibata, Yuichi Sudo, and Yonghwan Kim
    • Organizer
      21st International Symposium on Stabilization, Safety, and Security of Distributed Systems
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Brief Announcement: Logarithmic Expected-Time Leader Election in Population Protocol Model2019

    • Author(s)
      Yuichi Sudo, Fukuhito Ooshita, Taisuke Izumi, Hirotsugu Kakugawa, and Toshimitsu Masuzawa
    • Organizer
      38th ACM Symposium on Principles of Distributed Computing
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A Self-Stabilizing Algorithm for Constructing an ST-Reachable Directed Acyclic Graph When |S|<=2 and |T|<=22019

    • Author(s)
      Yonghwan Kim, Masahiro Shibata, Yuichi Sudo, Junya Nakamura, Yoshiaki Katayama and Toshimitsu Masuzawa
    • Organizer
      39th IEEE International Conference on Distributed Computing Systems
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A Population Protocol Model with Interaction Probability Considering Speeds of Agents2019

    • Author(s)
      Ryoya Sadano, Yuichi Sudo, Fukuhito Ooshita, Hirotsugu Kakugawa, Toshimitsu Masuzawa
    • Organizer
      39th IEEE International Conference on Distributed Computing Systems
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Partial gathering of mobile agents without identifiers or global knowledge in asynchronous unidirectional rings2019

    • Author(s)
      Masahiro Shibata, Norikazu Kawata, Yuichi Sudo, Fukuhito Ooshita, Hirotsugu Kakugawa, Toshimitsu Masuzawa
    • Organizer
      26th International Colloquium on Structural Information and Communication Complexity
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Brief Announcement: A strongly-stabilizing protocol for spanning tree construction against a mobile Byzantine fault2019

    • Author(s)
      Koki Inoue, Yuichi Sudo, Hirotsugu Kakugawa, Toshimitsu Masuzawa
    • Organizer
      26th International Colloquium on Structural Information and Communication Complexity
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Brief Announcement: Loosely-stabilizing Leader Election with Polylogarithmic Convergence Time2018

    • Author(s)
      Sudo, Yuichi ; Ooshita, Fukuhito ; Kakugawa, Hirotsugu ; Masuzawa, Toshimitsu
    • Organizer
      The 32nd International Symposium on Distributed Computing (DISC 2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Loosely-Stabilizing Leader Election with Polylogarithmic Convergence Time2018

    • Author(s)
      Sudo, Yuichi ; Ooshita, Fukuhito ; Kakugawa, Hirotsugu ; Masuzawa, Toshimitsu ; Datta, Ajoy K. ; Larmore, Lawrence L.
    • Organizer
      The 22nd International Conference on Principles of Distributed Systems (OPODIS 2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Loosely-stabilizing Leader Election in the Population Protocol Model2018

    • Author(s)
      Sudo, Yuichi
    • Organizer
      The 10th international Workshop on Parallel and Distributed Algorithms and Applications (PDAA 2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited

URL: 

Published: 2018-04-23   Modified: 2022-01-27  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi