COLLEGE OF ENGINEERING

Centre for Complexity and Complex Networks
複雜性科學與複雜網絡研究中心

College of Engineering
Centre for Complexity and Complex Networks
複雜性科學與複雜網路研究中心

CityU-CCCN-PolyU Joint Seminars

The CCCN-CityU-PolyU Joint Seminar Series began in 2001, and has since become regular weekly meetings for visitors, faculty, researchers and students to discuss latest progresses in their research. The usual venue is FYW-3316, Fong Yun Wah Building (access from Chinese Garden corridor, down the escalator on the left of the gate connecting Festival Walk) at CityU or CD-634, Core D of PolyU.

SEMESTER A, 2025/26, Friday, 4:30pm

SEMINAR TOPICS / SPEAKERS VENUE / ZOOM ID
September 1, 2025, Monday, 10:30am
Advances in Wireless Power Transfer Technology
Prof. Udaya Madawala, University of Auckland, New Zealand
FYW-3316, CityU
Zoom ID: 838 3173 9694
Password: 123456
September 5, 2025, Friday, 4:30pm
Multi-Timescale Coordinated Control for Shipboard DC Integrated Power Systems
Dr Yuji Zeng, City University of Hong Kong
FYW-3316, CityU
Zoom ID: 859 8869 4437
Password: 123456
September 12, 2025, Friday, 4:30pm
Looking into WiFi Channel State Information (CSI): From Signal Processing Foundations to Practical Applications
Dr Ruiqi Kong, The Chinese University of Hong Kong
BC 303, PolyU
Zoom ID: 383 735 6917
Password: 270831
September 19, 2025, Friday, 4:30pm
Design and Application of Capacitive Power Transfer Systems
Dr Ying Cathy Liu, Harbin Institute of Technology, Harbin
FYW-3316, CityU
Zoom ID: 859 8869 4437
Password: 123456
September 26, 2025, Friday, 4:30pm
Towards Resilient Autonomous Cyber-Physical Systems Against Adversarial Examples
Prof. Qun Song, City University of Hong Kong
FYW-3316, CityU
Zoom ID: 859 8869 4437
Password: 123456
October 3, 2025, Friday
National Day and Mid Autumn Break
October 10, 2025, Friday, 4:30pm
Analysis and Suppression of Electrical Instability for Multi-Vehicle Interconnected Systems in Electrified Railways
Dr. Xiangyu Meng, City University of Hong Kong
FYW-3316, CityU
Zoom ID: 859 8869 4437
Password: 123456
October 17, 2025, Friday, 4:30pm
Thermally Drawn Fiber Electronics
Prof. Zhixun Wang, Hong Kong Polytechnic University
P309, PolyU
Zoom ID: 270 294 7238
Password: 123456
October 24, 2025, Friday, 4:30pm
Building Hurricane-Resilient Urban Grids by Climate-Informed System Hardening Optimization
Mr Shuo Li, City University of Hong Kong
FYW-3316, CityU
Zoom ID: 859 8869 4437
Password: 123456
October 31, 2025, Friday, 4:30pm
Resilient Control and Stealthy Attack for Neworked Switched Systems
Dr Rui Zhao, Tianjin University, Tianjin
FYW-3316, CityU
Zoom ID: 859 8869 4437
Password: 123456
November 7, 2025, Friday, 4:30pm
Topic to be decided
Dr Chengxin Xian, The Hong Kong Polytechnic University
FYW-3316, CityU
Zoom ID: 859 8869 4437
Password: 123456
November 14, 2025, Friday, 4:30pm
Optimal Control of Hydrogen Fuel Cells
Dr Yulin Liu, Hong Kong Polytechnic Univertsity
FYW-3316, CityU
Zoom ID: 859 8869 4437
Password: 123456
November 21, 2025, Friday, 4:30pm
Topic to be decided
TBD
November 28, 2025, Friday, 4:30pm
Modeling LLMs as Complex Systems: Recent Advances
Dr Hao Liao, Shenzhen University
FYW-3316, CityU
Zoom ID: 859 8869 4437
Password: 123456
December 5, 2025, Friday, 4:30pm
Minimal Stability-Recovery in Perturbed Markov Chains
Dr Lin Lin, The University of Hong Kong
FYW-3316, CityU
Zoom ID: 859 8869 4437
Password: 123456
December 12, 2025, Friday, 4:30pm
Topic to be decided
TBD
Please let us know by email (chitse@cityu.edu.hk or encmlau@polyu.edu.hk) if you need a campus access code to attend the seminars in person.

Past Seminars


NEXT SEMINAR

____________________________________
October 24, 2025, Friday, 4:30pm
Room FYW-3316
Zoom ID 859 8869 4437
Password 123456

Building Hurricane-Resilient Urban Grids by Climate-Informed System Hardening Optimization
Mr Shuo Li, City University of Hong Kong

Abstract: Climate-driven hurricanes pose escalating threats to urban electricity distribution networks, undermining energy security and community wellbeing. A key challenge lies in developing integrated resilience strategies that effectively address emerging climate patterns—including fewer but more intense hurricanes and increasingly prevalent compound wind-rainfall hazards—alongside the spatial heterogeneity of risks and diverse vulnerabilities across urban and rural contexts. This seminar presents ongoing research efforts focused on building hurricane-resilient urban grids through climate-informed optimization frameworks. Specifically, the presentation will cover three complementary themes: (1) Long-term grid hardening and modernization, where high-resolution hurricane modeling is integrated with synthetic distribution networks to enable exposure-tiered reinforcement strategies that optimize infrastructure investments according to spatially diverse risk profiles; (2) Pre-event resilience planning, which addresses compound wind-rainfall hazards and trajectory uncertainties through stochastic optimization of emergency measures tailored to distinct urban-rural network characteristics; and (3) Post-disaster resilient restoration, which explores the integration of social vulnerability metrics alongside economic factors to achieve more equitable and effective recovery outcomes. Through interdisciplinary integration of electrical engineering and earth science, this work aims to contribute practical frameworks for enhancing grid resilience in hurricane-prone regions.

Speaker's Bio: Shuo Li received the B.S. degree in electrical engineering from Tianjin University, Tianjin, China, in 2023. He is currently pursuing dual Ph.D. degrees with the Department of Electrical Engineering, City University of Hong Kong, and the School of Electrical and Information Engineering, Tianjin University. His research interests include modeling and optimization of hurricane impacts on urban grids, resilience assessment and planning, and interdisciplinary integration of climate science and power systems engineering.

____________________________________
October 31, 2025, Friday, 4:30pm
Room FYW-3316
Zoom ID 859 8869 4437
Password 123456

Resilient Control and Stealthy Attack for Neworked Switched Systems
Dr Rui Zhao, Tianjin University, Tianjin

Abstract: This presentation focuses on resilient control and stealthy attack design for networked switched systems, addressing critical cybersecurity challenges in cyber-physical systems (CPS). The work addresses these challenges through a comprehensive framework that includes attack detection, system resilience, and attack strategy analysis. 1) Developed a new method to detect different types of cyberattacks. 2) Designed a defense strategy to counteract DoS attacks and deception attacks which fully utilizes the switching signal. 3) Devised stealthy attacks for switched systems when considering that the switching signal is unknown.

Speaker's Bio: Rui Zhao received the bachelor’s degree in automation and PhD in control science and engineering with the School of Electrical and Information Engineering, Tianjin University, China. Her research interests include event-triggered control, switched system, and network security.

____________________________________
November 14, 2025, Friday, 4:30pm
Room FYW-3316
Zoom ID 859 8869 4437
Password 123456

Optimal Control of Hydrogen Fuel Cells
Dr Yulin Liu, Hong Kong Polytechnic Univertsity

Abstract: This seminar focuses on the application of advanced machine learning techniques in the optimal control of hydrogen fuel cells. The proposed methods possess the merits of superior control performance, model independence, low computational burden, and guaranteed closed-loop stability, which make them attractive for industrial applications that require robustness under uncertainty and low computational cost.

Speaker's Bio: Yulin Liu received the B.E. degree in automation from the Southwest University, China, in 2018. He received his MPE degree in electrical and electronic engineering from The University of Western Australia (UWA), Australia, in 2020. He received his PhD degree in electrical and electronic engineering from UWA, Australia, in 2024. From 2024-2025, he was a postdoctoral research associate in the UWA, Australia. He joined the Hong Kong Polytechnic University (PolyU), China, as a postdoctoral fellow in 2025. His research focuses on the intelligent control of energy storage systems in renewable energy power grids, and his research interests have recently extended to intelligent manufacturing.