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Zeyi Liu

Ph.D. Candidate
Tsinghua University
liuzy21@mails.tsinghua.edu.cn


๐Ÿ‘‹ Welcome to My Personal Homepage

I am currently a Ph.D. candidate in the Department of Automation at Tsinghua University, working under the supervision of Prof. Xiao He and Prof. Donghua Zhou at the Research Center of Safety Control Technology.

Prior to this, I received my B.E. degree in Computer Science and Technology from Southwest University. During my undergraduate studies, I worked as a research assistant in the Laboratory of Information Fusion and Intelligent Science at the University of Electronic Science and Technology of China with Prof. Yong Deng.

My research focuses on online learning and its applications in real-time safety assessment, safety-guaranteed control, and multi-condition fault diagnosis of dynamic systems, such as robotic swarms, industrial automation systems, and safety-critical cyber-physical systems. My overarching goal is to enable reliable and safe operation for both large-scale industrial assets and small intelligent agents, even under complex and uncertain environments.

In recent years, I have been working to build a more complete theoretical and methodological framework for safety assessment and safety-guaranteed control in dynamic systems, and to extend it to a wider range of real-world applications. I am especially willing to share research resources whenever possible, including models, code, data, and survey materials, to support community exchange and reproducibility. In addition, I am interested in interdisciplinary applications. Since many natural processes can also be viewed as dynamic systems, I am interested in applying the advanced process monitoring technologies developed in this context to tackle critical challenges in environmental engineering, particularly in domains such as hydrology and atmospheric science.

I believe high-quality research often comes from open discussion and active idea exchange. If you are interested in any of these topics, feel free to contact me by email. I look forward to working together to help make the world safer and better :)

๐Ÿ“– Experience

๐ŸŽ“ Ph.D. Candiate

Department of Automation, Tsinghua University

๐Ÿ“ Beijing, China

Advisor: Prof. Xiao He

โฐ 2021.9 ~ 2026.12 (expected)

๐ŸŽ“ B.E. Degree

School of Computer and Information Science, Southwest University

๐Ÿ“ Chongqing, China

โฐ 2017.9 ~ 2021.6

๐Ÿ”ฌ Research Assistant

Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China

๐Ÿ“ Chengdu, Sichuan, China

Advisor: Prof. Yong Deng

โฐ 2019.7 ~ 2019.9

๐Ÿ”ฌ Research Assistant

Department of Automation, Tsinghua University

๐Ÿ“ Beijing, China

Advisor: Prof. Xiao He

โฐ 2020.1 ~ 2021.8

๐Ÿ“š Research

๐Ÿ”ฌ Research Fields

Safety-guaranteed Control for Embodied Intelligent Systems in Dynamic Environments

  • Learning for UAV attitude control
  • Vision-language-safe action models for embodied artificial intelligence
  • Safe robotic manipulator teleoperation in dynamic environments

Real-time Safety Assessment of Dynamic Systems in Non-stationary Environment

  • Online active learning methods and their optimization
  • Detection and adaptation methods of concept drift
  • Vision-language model-based safety assessment for industrial inspection

Multi-mode Fault Diagnosis of Dynamic Systems under Variable Operating Modes

  • Online semi-supervised learning methods and their optimization
  • Imbalance problem in the framework of online learning
  • Explainable artificial intelligence

๐Ÿ’ผ Research Projects

  • National Natural Science Foundation of China (for Ph.D. Candidate) under Grant 624B2087 (Host)
  • Innovative Entrepreneurial Training Plan Program of College Students in Chongqing (Host)
  • National Natural Science Foundation of China under Grant 61573290, 61503237, 61733009, 61973332 (Participant)
  • National Key Research and Development Program of China under Grant 2017YFA0700300 (Participant)
  • Key Project from Natural Science Foundation of Guangdong Province under Grant 2018B030311054 (Participant)

๐Ÿ“ˆ Research Statistics

Google Citation:

200+

H-index:

i10-index:

๐Ÿ“ฐ News

  • [Jul. 2026] The personal Google Scholar citations has reached 1000.
  • [Jul. 2026] InspecSafe-V1 has been accepted by Scientific Data.
  • [Jun. 2026] AEGIS has been accepted by IROS 2026.
  • [Jun. 2026] One paper has been accepted by IEEE TMECH.
  • [May. 2026] The personal Google Scholar citations has reached 900.
  • [Mar. 2026] MCC5-THU Motor has been accepted by DIB.
  • [Feb. 2026] The personal Google Scholar citations has reached 800.
  • [Jan. 2026] We have officially open-sourced the InspecSafe-V1 benchmark dataset.
  • [Jan. 2026] We have officially open-sourced the MCC5-THU Motor benchmark dataset.
  • [Dec. 2025] The personal Google Scholar citations has reached 700.
  • [Dec. 2025] We have officially open-sourced the SafeLIBERO benchmark dataset.
  • [Dec. 2025] Fortunate to receive Jiang Nanxiang Scholarship of Tsinghua University.
  • [Oct. 2025] Fortunate to receive National Scholarship of P. R. China for Graduates.
  • [Sep. 2025] Three papers have been accepted by CAA SAFEPROCESS 2025.
  • [Aug. 2025] The personal Google Scholar citations has reached 600.
  • [Jul. 2025] One paper has been accepted by IEEE TCYB.
  • [May. 2025] One survey paper has been accepted by IEEE TASE.
  • [Apr. 2025] One paper has been accepted by IEEE TNNLS.
  • [Mar. 2025] The personal Google Scholar citations has reached 500.
  • [Mar. 2025] One paper has been accepted by Neurocomputing.
  • โ–ผ Show more

๐ŸŽ– Honors

Selected Scholarships

2025
Jiang Nanxiang Scholarship of Tsinghua University
2025
National Scholarship of P. R. China for Graduates
2024
First-Prize Scholarship of Tsinghua University
2023
National Scholarship of P. R. China for Graduates
2023
Social Practice Scholarship of Tsinghua University
2022
National Scholarship of P. R. China for Graduates
2020
National Scholarship of P. R. China for Undergraduate Students
2020
Special Prize Scholarship of Southwest University
2020
Pisen Scholarship
2019
First Prize Scholarship of Southwest University
2019
TangLiXin Scholarship
2019
Pisen Scholarship

Main Awards

2025
The 51st International Exhibition of Inventions Geneva: Silver Medal
2026
Beijing Kirin Science and Technology Award
2025
Finalist of Fang Chong-Zhi Best Paper Award (CAA SAFEPROCESS 2025)
2023
Outstanding Doctoral Candidate of Beijing Association of Automation
2021
Outstanding Graduates of Colleges and Universities in Chongqing
2021
Outstanding Graduates of Southwest University
2020
2019-2020 Academic Year Outstanding Student Model of Southwest University
2020
Merit Student Award of Southwest University
2020
Academic Technology Award of Southwest University
2020
Innovation and Entrepreneurship Award of Southwest University
2020
MCM/ICM in 2020: Meritorious Winner
2019
The 28th National Mathematical Contest in Modeling: National Second Prize

๐Ÿ“œ Services

๐Ÿ›๏ธ Social Membership

Member of Chinese Association of Automation (CAA) Member of Chinese Association for Artificial Intelligence (CAAI) Member of China Computer Federation (CCF)

๐Ÿ‘ฅ Student Mentoring Assistance

Changhao Hu
Zhejiang University | Undergraduate Student | 2026.1-Present
Jiaming Liu
Beihang University | Undergraduate Student | 2025.7-Present
Jixin Xiao
Tsinghua University | Undergraduate Student | 2025.5-2026.2
Songqiao Hu
Tsinghua University | Undergraduate Student & Ph.D Candidate | 2022.7-Present
Pengyu Han
Tsinghua University | Undergraduate Student & Ph.D Candidate | 2022.9-Present
Chen Li
Tsinghua University | Graduate Student | 2022.5-2023.7
Guokai Yan
Tsinghua University | Undergraduate Student | 2022.5-2022.7
Mengfei Mao
Chongqing University | Undergraduate Student | 2022.4-2022.6

๐Ÿ“š Journal Reviewers

IEEE Transactions on Pattern Analysis and Machine Intelligence IEEE Transactions on Knowledge and Data Engineering IEEE Transactions on Neural Networks and Learning Systems IEEE Transactions on Automation Science and Engineering IEEE Transactions on Systems, Man and Cybernetics: Systems IEEE/ASME Transactions on Mechatronics IEEE Transactions on Instrumentation & Measurement IEEE Transactions on Industrial Informatics IEEE Transactions on Industrial Electronics IEEE Transactions on Mobile Computing IEEE Transactions on Reliability IEEE Transactions on Cybernetics IEEE Robotics and Automation Letters ACM Transactions on Knowledge Discovery from Data Engineering Applications of Artificial Intelligence Journal of Computational and Cognitive Engineering International Journal of Disaster Risk Science Journal of Harbin Engineering University Biomedical Signal Processing and Control Systems Science and Control Engineering Information Processing and Management Journal of Central South University Expert Systems With Applications Journal of the Franklin Institute Aerospace Science and Technology Control Engineering Practice Digital Chemical Engineering Measurement: Digitalization Knowledge-Based Systems Journal of Engineering IEEE Sensors Journal Information Sciences Scientific Reports ISA Transactions Renewable Energy Neural Networks Data in Brief Neurocomputing Measurement Energy Heliyon

๐ŸŽฏ Conference Reviewers/PC Member

IROS 2025, 2026 ACM SIGKDD 2024 MIND 2025 ICCA 2024 IEEE CAI 2024 IEEE CEC 2022, 2023 FUZZ-IEEE 2022, 2023 IJCNN 2022 CCC 2022, 2023 CAC 2022, 2023 CPCC 2023 CAA SAFEPROCESS 2023 FASTA 2024 ICAIS & ISAS 2024 ASCC 2024

๐ŸŒ Social Services

  • Invited Session Organizer for ICAIS & ISAS 2024
  • Co-Chair of Learning-based Real-time Fault Diagnosis and Safety Control Session in ICAIS & ISAS 2024

๐ŸŽค Talks and Presentations

Real-time Safety Assessment of Dynamic Systems in Non-stationary Environments: A Review of Methods and Techniques
CAA SAFEPROCESS 2023, Sept., Yibin, Sichuan, China
Real-time Safety Assessment of Dynamic Systems: Research Paradigms, Analysis, and Challenges
ICAIS & ISAS 2024, May, Chongqing, China
Online Dynamic Semi-supervised Broad Learning System for Real-time Fault Diagnosis with Variable Working Conditions
CPCC 2024, Jul., Sanya, Hainan, China
Real-time Safety Assessment of Dynamic Systems in Non-stationary Environments
CAC 2025, Oct., Harbin, Heilongjiang, China
Real-time Safety Assessment of Deep-sea Manned Submersibles in Non-stationary Environments
CAA SAFEPROCESS 2026, May, Taiyuan, Shanxi, China (Keynote)

๐Ÿ“ Main Publications [Google Scholar][DBLP]

    ๐Ÿ“„ Preprint

  1. arXiv
    Changhao Hu#, Zeyi Liu# , Songqiao Hu# , Shuang Liu, Zihan Meng, Xiao He
    arXiv

  2. arXiv
    Songqiao Hu, Zidong Wang, Zeyi Liu, Zhen Shen, Xiao He
    arXiv

  3. ๐Ÿ“š Journal/Conference

  4. SciData
    Zeyi Liu, Shuang Liu, Jihai Min, Zhaoheng Zhang, Jun Cen, Pengyu Han, Songqiao Hu, Zihan Meng, Xiao He, Donghua Zhou
    Scientific Data

  5. IROS 2026
    Songqiao Hu#, Zeyi Liu# , Shuang Liu, Jun Cen, Zihan Meng, Shihefeng Wang, Xiang Li, Xiao He
    IEEE/RSJ International Conference on Intelligent Robots and Systems

  6. Dual-stage Dynamic Adaptation for Fault Diagnosis With Time-varying Operating Conditions IEEE TMECH
    Shijin Chen#, Zeyi Liu#, Chenyang Li#, Dongliang Zou, Xiao He, Donghua Zhou
    IEEE/ASME Transactions on Mechatronics

  7. Multi-mode Fault Diagnosis Datasets of Three-phase Asynchronous Motor Under Variable Working Conditions DIB
    Shijin Chen#, Zeyi Liu#, Chenyang Li#, Dongliang Zou, Xiao He, Donghua Zhou
    Data in Brief

  8. Incremental Learning-Enabled Fault Diagnosis of Dynamic Systems: A Comprehensive Review IEEE TCYB
    Zeyi Liu, Xiao He, Biao Huang, Donghua Zhou
    IEEE Transactions on Cybernetics

  9. Multi-Condition Fault Diagnosis of Dynamic Systems: A Survey, Insights, and Prospects IEEE TASE
    Pengyu Han, Zeyi Liu, Xiao He, Steven X Ding, Donghua Zhou
    IEEE Transactions on Automation Science and Engineering

  10. Factorization-Based Broad Learning System With Time-Dependent Structure IEEE TNNLS
    Chen Li, Zeyi Liu, Xiao He, Pengyu Han
    IEEE Transactions on Neural Networks and Learning Systems

  11. A Hierarchical Cross-modal Spatial Fusion Network for Multimodal Emotion Recognition IEEE TAI
    Ming Xu, Tuo Shi, Hao Zhang, Zeyi Liu, Xiao He
    IEEE Transactions on Artificial Intelligence

  12. Online Dynamic Hybrid Broad Learning System for Real-time Safety Assessment of Dynamic Systems IEEE TKDE
    Zeyi Liu, Xiao He
    IEEE Transactions on Knowledge and Data Engineering

  13. Real-time Safety Assessment Techniques of Dynamic Systems (in Chinese) AAS
    Xiao He, Zeyi Liu, Songqiao Hu, Chang Liu, Donghua Zhou
    Acta Automatica Sinica

  14. Imbalanced Real-Time Fault Diagnosis Based on Minority-Prioritized Online Semi-Supervised RVFL Network IEEE TIM
    Pengyu Han, Shijin Chen, Zeyi Liu, Xiao He
    IEEE Transactions on Instrumentation and Measurement

  15. Contrastive Preference-Guided Active Learning Approach Based on Ranking Correlation for Chunk-Level RTSA IEEE TASE
    Zeyi Liu, Xiao He
    IEEE Transactions on Automation Science and Engineering

  16. CADM+: Confusion-Based Learning Framework with Drift Detection and Adaptation for Chunk-Level RTSA IEEE TNNLS
    Songqiao Hu, Zeyi Liu, Minyue Li, Xiao He
    IEEE Transactions on Neural Networks and Learning Systems

  17. A Dynamic Anchor-Based Oline Semi-Supervised Learning Approach for Fault Diagnosis Under Variable Operating Condition NeuroC
    Wei Li, Zeyi Liu, Pengyu Han, Xiao He, Limin Wang, Tao Zhang
    Neurocomputing

  18. Formulating Opinion Dynamics From Belief Formation, Diffusion and Updating in Social Network Group Decision-making: Towards Developing a Holistic Framework EJOR
    Tao Wen, Rui Zheng, Ting Wu, Zeyi Liu, Mi Zhou, Tahir Abbas Syed, Darminder Ghataoura, Yu-wang Chen
    European Journal of Operational Research

  19. Game-Theoretic Expert Importance Evaluation Model Guided by Cooperation Effects for SNGDM IEEE TETCI
    Zeyi Liu#, Tao Wen#, Yong Deng, and Hamido Fujita
    IEEE Transactions on Emerging Topics in Computational Intelligence

  20. Dynamic Model Interpretation-Guided Online Active Learning Scheme for Real-Time Safety Assessment IEEE TCYB
    Xiao He, Zeyi Liu
    IEEE Transactions on Cybernetics

  21. Evidential Ensemble Preference-guided Learning Approach for Real-time Multi-mode Fault Diagnosis IEEE TII
    Zeyi Liu, Chen Li, Xiao He
    IEEE Transactions on Industrial Informatics

  22. A Discrimination-Guided Active Learning Method Based on Marginal Representations for Industrial CFD IEEE TASE
    Zeyi Liu, Jingfei Zhang, Xiao He
    IEEE Transactions on Automation Science and Engineering

  23. A Real-time Adaptive Fault Diagnosis Scheme for Dynamic System with Performance Degradation IEEE TR
    Xiao He, Chen Li, Zeyi Liu
    IEEE Transactions on Reliability

  24. A Robust Evidential Multi-source Data Fusion Approach Based on CGT and Its Application in EEG IEEE TSMCA
    Zeyi Liu, Fuyuan Xiao, Chin-Teng Lin, Zehong Cao
    IEEE Transactions on Systems, Man, and Cybernetics: Systems

  25. Dynamic Submodular-Based Learning Strategy in Imbalanced Drifting Streams for RTSA in Nonstationary Environments IEEE TNNLS
    Zeyi Liu, Xiao He
    IEEE Transactions on Neural Networks and Learning Systems

  26. Multi-Mode Fault Diagnosis Datasets of Gearbox Under Variable Working Conditions DIB
    Shijin Chen#, Zeyi Liu#, Xiao He, Dongliang Zou, Donghua Zhou
    Data in Brief

  27. Ivrr-PPG: An Illumination Variation Robust Remote-PPG Algorithm for Monitoring Heart Rate of Drivers IEEE TIM
    Ming Xu, Guang Zeng, Yongjun Song, Yue Cao, Zeyi Liu, Xiao He
    IEEE Transactions on Instrumentation and Measurement

  28. Real-Time Safety Assessment for Dynamic Systems with Limited Memory and Annotations IEEE TITS
    Zeyi Liu, Xiao He
    IEEE Transactions on Intelligent Transportation Systems

  29. An Online Active Broad Learning Approach for RTSA of Dynamic Systems in Nonstationary Environments IEEE TNNLS
    Zeyi Liu, Yi Zhang, Zhongjun Ding, Xiao He
    IEEE Transactions on Neural Networks and Learning Systems

  30. RMFD with Limited Expert Interaction: A Multicriteria Active Learning Approach Based on BLS IEEE TCST
    Zeyi Liu, Jingfei Zhang, Xiao He, Qinghua Zhang, Guoxi Sun, Donghua Zhou
    IEEE Transactions on Control Systems Technology

  31. Measure-Based GDM with Principle-Guided Social Interaction Influence for Incomplete Information: A Game Theoretic Perspective IEEE TFS
    Zeyi Liu, Yong Deng, Ronald R. Yager
    IEEE Transactions on Fuzzy Systems

  32. Safety Assessment of Dynamic Systems: An Evidential Group Interaction-Based Fusion Design IEEE TIM
    Zeyi Liu, Yong Deng, Yi Zhang, Zhongjun Ding, Xiao He
    IEEE Transactions on Instrumentation and Measurement

  33. A Generalized Golden Rule Representative Value for Multiple-Criteria Decision Analysis IEEE TSMCA
    Zeyi Liu, Fuyuan Xiao, Chin-Teng Lin, Byeong Ho Kang, Zehong Cao
    IEEE Transactions on Systems, Man, and Cybernetics: Systems

  34. Network-Based Evidential Three-Way Theoretic Model for Large-Scale Group Decision Analysis INS
    Zeyi Liu, Xiao He, Yong Deng
    Information Sciences

  35. A Dynamic Group MCDM Model with Intuitionistic Fuzzy Set: Perspective of Alternative Queuing Method INS
    Ran Tao, Zeyi Liu, Rui Cai, Kanghao Cheong
    Information Sciences

  36. Towards Next-Generation Intelligent Maintenance: Collaborative Fusion of Large and Small Models CAA SAFEPROCESS 2025
    Xiaoyi Yuan, Qiming Huang, Mingqing Guo, Huiming Ma, Ming Xu, Zeyi Liu, Xiao He
    2025 CAA Symposium on Fault Detection, Supervision, and Safety for Technical Processes

  37. Lite-RVFL: A Lightweight Random Vector Functional-Link Neural Network for Learning Under Concept Drift CAA SAFEPROCESS 2025
    Songqiao Hu, Zeyi Liu, Xiao He
    2025 CAA Symposium on Fault Detection, Supervision, and Safety for Technical Processes

  38. Rethinking the Role of Operating Conditions for Learning-based Multi-condition Fault Diagnosis CAA SAFEPROCESS 2025
    Pengyu Han, Zeyi Liu, Shijin Chen, Dongliang Zou, Xiao He
    2025 CAA Symposium on Fault Detection, Supervision, and Safety for Technical Processes

  39. Online Dynamic Semi-supervised Broad Learning System for RTFD with Variable Working Conditions CPCC 2024
    Zeyi Liu, Pengyu Han, Wei Li, Shijin Chen, Xiao He
    The 34th Chinese Process Control Conference

  40. RTSA of Dynamic Systems in Non-Stationary Environments: A Review of Methods and Techniques CAA SAFEPROCESS 2023
    Zeyi Liu, Songqiao Hu, Xiao He
    2023 CAA Symposium on Fault Detection, Supervision, and Safety for Technical Processes

  41. ๐Ÿ”ง Resources

    1. Awesome-OL: An Extensible Toolkit for Online Learning TOOLKITS
      THU-FDD Research Group
      Open-source Codes

    2. InspecSafe-V1: A Multimodal Benchmark for Safety Assessment in Industrial Inspection Scenarios DATASETS
      THU-RCSCT Research Group
      Open-source Benchmark Dataset

    3. SafeLIBERO: A Safety-Critical Benchmark with Vision-Language-Action Models DATASETS
      THU-RCSCT Research Group
      Open-source Benchmark Dataset

    4. Multi-mode Fault Diagnosis Datasets of Three-phase Asynchronous Motor Under Variable Working Conditions DATASETS
      THU-FDD Research Group, MCC5 Group Shanghai Co. LTD, Zhengzhou University
      Open-source Benchmark Dataset

    5. Multi-mode Fault Diagnosis Datasets of Gearbox Under Variable Working Conditions DATASETS
      THU-FDD Research Group, MCC5 Group Shanghai Co. LTD
      Open-source Benchmark Dataset

    6. Deep-Sea Manned Submersible Datasets DATASETS
      THU-FDD Research Group
      Open-source Benchmark Dataset

    7. Concept Drift Simulation Benckmark Datasets DATASETS
      THU-FDD Research Group
      Open-source Benchmark Dataset

    8. Multi-mode Fault Diagnosis Datasets with Tennessee Eastman Process DATASETS
      THU-FDD Research Group
      Open-source Benchmark Dataset

    9. Compound Fault Diagnosis Datasets of Rotating Machinery DATASETS
      THU-FDD Research Group
      Open-source Benchmark Dataset

    ๐Ÿ–ผ๏ธ Photo Wall

    Happy New Year

    ๐Ÿ’ฌ Contact

    ๐Ÿข
    Office Location
    Central Main Building #415
    โœ‰๏ธ
    Email
    liuzy21@mails.tsinghua.edu.cn


Please feel free to contact and discuss with me.
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