Dr. Hui Liu
Enrique-Schmidt-Str. 5
Cartesium, Room 2.14
28359 Bremen
+49(0)421-218-64278
hui.liuprotect me ?!uni-bremenprotect me ?!.de
I studied electrical engineering at the Technical University of Berlin (Dipl.-Ing., 2009) and information and communication systems at Shanghai Jiao Tong University (M.Sc., 2011). Since 2016, I have been a researcher for biosignal processing, human activity recognition, virtual reality, music information retrieval, and multidisciplinary application of AI at the Cognitive Systems Lab of the University of Bremen, where I received my Ph.D. (2021). I am co-responsible for four multipartner projects: Arthrokinemat (intelligent knee bandage), IntEL4CoRo (interactive learning for cognitive robotics), NF-BWB (young talent development), and SEED (reflecting artificial biosignals for human robot interaction). I developed the first smart knee bandage that recognizes users' activities in real-time (Best Student Paper, BIODEVICES 2019) and proposed Motion Units, an activity modeling method with interpretability, generalizability, and expandability, rationalizing kinesiology and speech recognition knowledge into human activity research (2021). Three papers on high-level feature design (co-author), music signal processing (first author), and EMG-based AUR (co-author) were/are the Best Paper Finalists by BIOSIGNALS 2022, SIGMAP 2022, and BIODEVICES 2025, respectively. Eight articles for which I am the single first or/and corresponding author were marked as "Highly Cited Paper" (top 1%) and "Hot Paper" (top 0.1%) by World of Science. I was selected by Stanford and Elsevier as one of the "World's Top 2% Scientists" in 2025. I collected and released the 19-channel, 22-activity, 20-subject human activity dataset CSL-SHARE (2021). A dataset of ECG acquisition artifacts called sensORder was published under my guidance (2024). I received the following third-party funding and awards: the Erasmus Teaching Mobility Award (2018), the CAMPUSiDEEN Public Choice Award for advanced sensing and recognition technology (2022), and the YERUN Research Mobility Award (2022/2023). I have served as Co-Chair, Co-PC, Co-TPC, AC, or Publicity Chair for over ten important international conferences, including 33rd ICANN, 17th BIOSIGNALS, and 7th ABC. I am an editorial member of several international journals, and was awarded Sensors 2023 Outstanding Reviewer.
Recently, my international collaboration has expanded to AI for energy efficiency and smart buildings, assistance tools for amateur singers, and exoskeletons, among others, for which a considerable number of topics are carried out in parallel. I always eagerly await new interdisciplinary and cross-border cooperation in various fields!
Selected awards for scientific publications
2019 Best Student Paper Award, first author, BIODEVICES (BIOSTEC), with T. Schultz: A Wearable Real-Time Human Activity Recognition System using Biosensors Integrated into a Knee Bandage
2022 Best Student Paper Finalist, second author, BIOSIGNALS (BIOSTEC), with Y. Hartmann and T. Schultz: Interpretable High-Level Features for Human Activity Recognition
2022 Best Paper Finalist, first author, SIGMAP, with T. Xue and T. Schultz: Merged Pitch Histogram and Pitch-Duration Histogram
2023 Hot Paper (top 0.1% in Engineering) and Highly Cited Paper (top 1% in Engineering) by World of Science (WoS), corresponding author, IEEE Access, with M. K. A. Jannat, M. S. Islam, and S-H Yang: Efficient Wi-Fi-Based Human Activity Recognition Using Adaptive Antenna Elimination
2023 Hot Paper and Highly Cited Paper in Biology & Biochemistry by WoS, corresponding author, Front. Physiol., mit L. Cai, S. Yan, C. Ouyang, T. Zhang, J. Zhu, L. Chen, and X. Ma: Muscle Synergies in Joystick Manipulation
2023 Hot Paper and Highly Cited Paper in Biology & Biochemistry by WoS, corresponding author, Front. Physiol., with J. Li, JW. Li, C. Wang, F. J. Verbeek, and T. Schultz: Outlier detection using iterative adaptive mini-minimum spanning tree generation with applications on medical data
2024 Hot Paper and Highly Cited Paper in Engineering by WoS, first and corresponding author, IEEE Sensors, with S. Zhang, H. Gamboa, T. Xue, C. Zhou, and T. Schultz: Taxonomy and Real-Time Classification of Artifacts during Biosignal Acquisition: A Starter Study and Dataset of ECG
2024 Hot Paper and Highly Cited Paper in Biology & Biochemistry by WoS, corresponding author, Front. Physiol., with D. Khan, M. Alonazi, M. Abdelhaq, N. Al Mudawi, A. Algarni, and A. Jalal: Robust human locomotion and localization activity recognition over multisensory
2025 Best Paper, co-author, BIODEVICES (BIOSTEC), with D. Küster, R. A. Rammohan, T. Schultz, and R. Koschke: The Bigger the Better? Towards EMG-Based Single-Trial Action Unit Recognition of Subtle Expressions
2025 "World's Top 2% Scientist" selected by Stanford
2025 "Top 0.05% Scientist“ (Uni Bremen Top 5, Prior 5 Years; Rank 10 in „Human Behavior”) selected by ScholarGPS
Job/Thesis Information
Student Assistant/Bachelor-/Master-Thesis: Software Porting on Windows/Android (2024)
Bachelor-/Master-Thesis: Real-time Human Activity Recognition with Virtual Reality (2024)
Bachelor-/Master-Thesis: Comparison of manual, semi-automated, and automatic segmentation of human activity data (2024)
Spontaneously designed thesis/work topics related to my research interests are always highly welcomed!
My best research assistants and students (HiWis/theses/guest)
Research Projects and Fundings
Arthrokinemat
IntETL4Coro
NF-BWB
ETAP (Participation in the planning)
SEED Project: Reflecting Artificial Biosignals for Human Robot Interaction
YERUN (Young European Research Universities Network) Research Mobility Awards (YRMA), 2022
Erasmus Teaching Staff Mobility für Universidade Nova de Lisboa (Lisbon, Portugal), 2018
Academic Activities and Contributions
Editorial Board
Editor
- Frontiers in Behavioral Neuroscience
- Frontiers in Endocrinology
- Frontiers in Immunology
- Frontiers in Bioengineering and Biotechnology
Guest Editor
- Biosensors (Q1, IF5.4)
- Your contribution is welcome: Innovative Technologies of Acquiring, Processing, Modeling, or Utilizing Biomedical and Physiological Signals from Biosensing
- Your contribution is welcome: Sensors for Human Activity Recognition: 3rd Edition
- Sensors (Q2, IF3.9)
- Sensors for Human Activity Recognition 1st Edition: Book
- Sensors for Human Activity Recognition 2nd Edition: Book
- Your contribution is welcome: Sensors for Human Activity Recognition: 3rd Edition
- Your contribution is welcome: Electroencephalogram/Electromyogram-Based Sensing Technologies for Biomedical Applications: Challenges and Possible Application
- Biosensors (Q1, IF5.4)
General Co-Chair
- AIRSA 2025 – International Confer ence on Artificial Intelligence and Remote Sensing Applications (Changsha, China)
- AIRSA 2026 – 2nd International Confer ence on Artificial Intelligence and Remote Sensing Applications (Zhengzhou, China)
- IS-ALL 2025 – International Symposium on Artificial Intelligence Innovations (Guiyang, China)
- IS-ALL 2026 – International Symposium on Artificial Intelligence Innovations (Sanya, China
Executive Chair
- AIM 2025 – International Symposium on AI in Medicine (Nanjing, China)
Technical Program Chair
- ArtInHCI 2025 – 3nd International Conference on Artificial Intellience and Human-Computer Interaction (Nanjing, China)
Program Co-Chair
- BIOSIGNALS 2024 (in BIOSTEC 2024) – 17th International Conference on Bio-Inspired Systems and Signal Processing (Rome, Italy)
- BIOSIGNALS 2026 (in BIOSTEC 2026) – 19th International Conference on Bio-Inspired Systems and Signal Processing (Marbella, Spain)
Technical Program Co-Chair
- ArtInHCI 2024 – 2nd International Conference on Artificial Intellience and Human-Computer Interaction (Kunming, China; Malaysia)
Area Chair
- ICANN 2024 – 33rd International Conference on Bio-Inspired Systems and Signal Processing (Lugano, Switzerland)
- CEII 2024 – 7th Asia Conference on Cognitive Engineering and Intelligent Interaction (Singapore)
Publicity Chair
Doctoral Consortium Co-Chair
- BIOSTEC 2025 – 18th International Joint Conference on Biomedical Engineering Systems and Technologies (Porto, Portugal)
Session Chair
- HEALTHINF 2022 (in BIOSTEC 2022) – 15th International Conference on Health Informatics (Vienna, Austria)
- HEALTHINF 2025 (in BIOSTEC 2022) – 18th International Conference on Health Informatics (Porto, Portugal)
- SIGMAP 2022 – 19th International Conference on Signal Processing and Multimedia Applications (Lisbon, Portugal)
- BIOSTEC 2023 – 16th International Joint Conference on Biomedical Engineering Systems and Technologies (Lisbon, Portugal)
Keynote Speaker
- Wearable Medical AI, 4th International Symposium on Clinical Medicine and Intelligent Devices, Heidelberg, Germany 2025
- Human-Triggered Machine Learning (HTML), 3rd International Conference on Artificial Intelligence and Human-Computer Interaction, Nanning, China 2025
- Human Factors in Civil Aviation Security, 3rd Civil Aviation Flight and Operation Technology Forum, Chengdu, China 2025
Invited Speaker
- Academics and Art, Verein der CDHAW-Absolventen und Mitglieder der Tongji-Universität, Düsseldorf, Germany, 2018
- From Offline towards Real-Time, BIOSTEC 2019 – 12th International Joint Conference on Biomedical Engineering Systems and Technologies, Prague, Czech, 2019
- Smart Knee Bandage, KIT Adaptive Systems Talks, Karlsruhe, Germany, 2022
- Biosignals and Cognitive Systems, NOVA Universidade de Lisboa, Lisbon, Portugal 2018
- From Script to Stage, Lecture Series of the 3rd European University Theater Festival, Frankfurt, Germany, 2019
- The Stage Performance Art of Local Chinese Operas and Quyi, Lecture Series of the 6th European University Theater Festival, Frankfurt, Germany, 2022
- Multimodal Wearable Biosignal Sensors, Zhejiang Lab for Regenerative Medicine, Vision and Brain Health, Wenzhou, China, 2024
- What Else Can Physiological Signals Bring to Smart Life? 9th Bremen Big Data Challenge (BBDC 2024) Award Ceremony Summit, Bremen, Germany, 2024
- Biosignals for the Safety of Power Operation and Maintenance Personnel, Huadian New Power System Technology Innovation Forum, Nanjing, China, 2025
- HTML: Human-Triggered Machine Learning, NOVA Universidade de Lisboa, Lisbon, Portugal, 2025
Peer Reviewer
- For 43 international journals, including Nat. Commun., IEEE Sens. J., Biomed. Signal Process. Control, Geo-Spat. Inf. Sci., Remote Sens., Foods, Front. Plant Sci., Front. Bioeng. Biotechnol., Front. Med., Physiol. Meas., Phys. Scr., Biomimetics, Smart Cities, and Biosensors
- For various conferences, including IEEE BSN and BHI; ACM ICMI, ISWC, and AUTOMOTIVEUI; ITG
- 2023 Outstanding Reviewer Award of Sensors
- IOP Trusted Reviewer in recognition of an exceptionally high level of peer review competence
Open-Source Codebanks, datasets, and Tutorial Contributor
Industry-Oriented activities
Bremen.AI 2019
- Demonstration of real-time human activity recognition
- Demonstration of MR game platform for rehabilitation assistance
MindDay 2021 (Bremen)
- Demonstration of an intelligent knee bandage
CAMPUSiDEEN 2022
Golden Panda 2022 Global Competition of Innovation and Entrepreneurship
- Judge
Courses
Hot Topics in Sensors and Human Activity Research
Thursday 14:00 – 16:00
Biosignals and User Interfaces
Tuesday 14:15 – 16:15
Wednesday 16:15 – 17:15
- Scoreboard_2020
Selected Topics of Cognitive Systems
Fundamentals of Machine Learning (Partially: Clustering)
Software Project II
Bachelor Project: RoboARinth (Winter Semester 2020/2021, Summer Semester 2021)
Publications (Inhouse)
In Kürze:
EMG-based Action Unit Recognition of Subtle and Intense Expressions: Towards Single-Trial Classification Models (Book Chapter). Küster, D.*, Rathi Adarshi Rammohan, Liu, H., Schultz, T., and Koschke, R. (2026). In Biomedical Engineering Systems and Technologies, Springer Nature Switzerland.