Masaki Chujyo
About
Name: Masaki Chujyo / 中条 雅貴
Position: Project Assistant Professor
Affiliation: Department of Systems Innovation, School of Engineering, The University of Tokyo
Postal address: 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656 Japan
Email: mchujyo(at)g.ecc.u-tokyo.ac.jp
Interests: Network Science, Computational Social Science, Statistical Physics, Machine Learning
Self-Introduction: Masaki Chujyo is a Project Assistant Professor at the School of Engineering, University of Tokyo, under Prof. Fujio Toriumi. I received my Ph.D. degree from the Japan Advanced Institute of Science and Technology (JAIST) in 2023 under the supervision of Prof. Yukio Hayashi. Before that, I obtained my M.Phil. degree from JAIST in 2020 and my B.S. degree from Hokkaido University in 2018. My research interests include complex networks, computational social science, statistical physics, and machine learning. My recent works are on network robustness of connectivity against targeted attacks.
Researches
■ Journal Articles
Masaki Chujyo, and Yukio Hayashi, “Adding links on minimum degree and longest distance strategies for improving network robustness and efficiency.” PLOS ONE 17(10) pp. 1-20 : e0276733 (2022). https://doi.org/10.1371/journal.pone.0276733
Masaki Chujyo, and Yukio Hayashi, "A loop enhancement strategy for network robustness." Applied Network Science 6, 3 (2021). https://doi.org/10.1007/s41109-020-00343-6
■ Conference Proceedings
Masaki Chujyo and Yukio Hayashi, "Optimal Network Robustness in Continuously Changing Degree Distributions". In: Cherifi, H., Mantegna, R.N., Rocha, L.M., Cherifi, C., Micciche, S. (eds) Complex Networks and Their Applications XI. COMPLEX NETWORKS 2022. Studies in Computational Intelligence, vol 1078. Springer, Cham, (2023). https://doi.org/10.1007/978-3-031-21131-7_31
■ International Conferences
Masaki Chujyo and Fujio Toriumi, "Link-limited bypass rewiring for network robustness", The 12th International Conference on Complex Networks and their Applications, Poster, Nov. 28-30, 2023, Menton Riviera France.
Masaki Chujyo and Fujio Toriumi, "Robustness of social networks against targeted attacks", NOLTA 2023 International Symposium on Nonlinear Theory and Its Applications, Oral, Sept. 25-29, 2023, Catania Italy.
Masaki Chujyo and Yukio Hayashi, "Network robustness against random, localized, and targeted attacks: from the perspective of loops", International School and Conference on Network Science (NetSci), Poster, Jul. 10-14, 2023, Vienna Austria.
Masaki Chujyo and Yukio Hayashi, “Optimal network robustness in continuously changing degree distributions”, The 11th International Conference on Complex Networks and their Applications, Poster, Nov. 8-10, 2022, Palermo Italy.
Masaki Chujyo, and Yukio Hayashi, "Improvement of the robustness against attacks in continuously varying degree distributions", The 10th International Conference on Complex Networks and their Applications, Oral, Nov. 30-Dec. 2, 2021, Madrid Spain (ONLINE & IN-PERSON).
Masaki Chujyo, and Yukio Hayashi, "Maximizing network robustness of connectivity by edge additions based on the largest eigenvalue of the non-backtracking matrix.", Poster, Networks 2021: A Joint Sunbelt and NetSci Conference, Jul. 5-10, 2021, Online.
Masaki Chujyo, and Yukio Hayashi, "Rewirings by enhancing loops improve network robustness" International School and Conference on Network Science (NetSci-X), Poster, Jan.20-23, 2020, Tokyo.
Masaki Chujyo, and Yukio Hayashi, "Significant improvement of network robustness by enhancing loops through rewiring" Book of Abstracts, The 8th International Conference on Complex Networks and their Applications, Oral, BookOfAbstracts, pp.569-571, Dec.10-12, 2019, Lisbon Portugal.
■ Domestic Conferences
中条雅貴, 国際学会参加報告 〜NetSciとComplex Networks〜, 第19回ネットワーク生態学シンポジウム, 招待講演, 2024年2月, 長崎.
中条雅貴 鳥海不二夫, オピニオンダイナミクスにおける意見操作, 第19回ネットワーク生態学シンポジウム, ポスター発表, 2024年2月, 長崎.
中条雅貴 鳥海不二夫, 職歴データによるエンジニアキャリアパスの分析, 第三回計算社会科学研究会, 口頭発表, 12-3, 2024年2月, 大阪.
中条雅貴 林幸雄, 標的型攻撃と範囲型攻撃に対するネットワーク頑健性, 電子情報通信学会 2023年総合大会, 口頭発表, B-7-21, 2023年3月, 埼玉.
中条雅貴 林幸雄, 標的型攻撃と範囲型攻撃に対するネットワーク頑健性とループの関係, 第18回ネットワーク生態学シンポジウム, ポスター発表, 2023年2-3月, 北海道.
中条雅貴 林幸雄, 攻撃に対するネットワーク頑健性向上のためのリンク追加法, 日本物理学会 2022年秋季大会, 口頭発表, 14pH1101-16, 2022年9月, 東京.
中条雅貴 林幸雄, 固有値を用いたパーコレーションしきい値の最適化, ネットワーク科学研究会2022, ポスター発表, 2022年8月, 京都.
中条雅貴 林幸雄, 連続変化する次数分布における複雑ネットワークの攻撃耐性, 日本物理学会 第77回年次大会, ポスター発表, 17pPSL-26, 2022年3月, オンライン.
中条雅貴 林幸雄, 連続的に変化する次数分布上の頑健性とループの関係, ネットワーク科学研究会2021, ポスター発表, 2021年12月, 石川.
中条雅貴 林幸雄, Feedback Vertex Setを用いたループ強化によるネットワーク頑健性の向上, 第16回ネットワーク生態学シンポジウム, ポスター発表, 2021年3月, オンライン.
中条雅貴 林幸雄, ループ強化によるネットワーク頑健性の向上, ネットワーク科学セミナー2020, 口頭発表, 2020年12月, オンライン.
中条雅貴 林幸雄, Feedback Vertex Setを用いたネットワーク頑健性の向上, 第41回IBISML研究会, 口頭発表, 2020年10月, オンライン.
中条雅貴 林幸雄, ループに着目したネットワーク頑健性の強化, 電子情報通信学会 2020年総合大会, 口頭発表, N-2-3, 2020年3月, (コロナのため現地開催中止)
Grants
Grant-in-Aid for Early-Career Scientists, Japan Society for the Promotion of Science: (2024-2026)
東京大学 AIセンター融合研究促進費: Amounts: 2,000,000 JPY (2023-2024)
Education
Ph. D. (Apr. 2020 - Mar. 2023)
Division of Transdisciplinary Sciences, Japan Advanced Institute of Science and Technology
M. Phil. (Apr. 2018 - Mar. 2020)
Division of Transdisciplinary Sciences, Japan Advanced Institute of Science and Technology
B. S. (Apr. 2014 - Mar. 2018)
Earth and Planetary Sciences, School of Science, Hokkaido University
Honors and Awards
Outstanding Performance Award in Master's program at JAIST, 2020
Outstanding Performance Award in Doctoral's program at JAIST, 2023
Teaching Experience
Guest Lecturer
"Complex Network Science" for graduate students at UTokyo in 2023.
Teaching Assistant
"Network Science" for graduate students at JAIST in 2019 - 2022.
"Methodology for Systems Science" for adult graduate students at JAIST in 2020 - 2021.
Academic Activities
Program Committee, AAAI Workshop on Learning and Reasoning with Complex Graphs, 2022 -
Program Committee, International School and Conference on Network Science (NetSci), 2024 -
運営委員, ネットワーク科学勉強会, 2023 -
Professional Memberships
電子情報通信学会
日本物理学会