News

Outstanding Student Award in the IEEE International Conference on Digital Twins and Parallel Intelligence (DTPI’2022)

Supervised by Dr Ivan Ho, our MSc in EIE programme graduate, Miss Tingting Fan, obtained the Outstanding Student Award in the IEEE International Conference on Digital Twins and Parallel Intelligence (DTPI) 2022 for her research work on "Digital Twin-Assisted Lane-changing and Variable Speed Limit Control for Weaving Segments". In this work, a joint traffic and network simulator is established to construct the digital twin system, and two traffic control strategies, namely the lane-changing (LC) distribution strategy and the variable speed limit (VSL) control strategy, are proposed and validated in a complex highway weaving segment environment. The results show that communication packet loss negatively affects the performance of V2X-assisted LC control, which is usually neglected in the field of transport studies. However, by integrating the LC control with the proposed reinforcement learning based VSL control, we can improve the overall average speed of vehicles on highway weaving segments by more than 40% compared with the LC control alone.

Champion of Hack The Boo CTF Competition

Hack The Boo CTF Competition is a 5-day Catch-the-flag event organized by Hack The Box, a renowned global cybersecurity training platform which allows individuals, companies, universities and all kinds of organizations around the world to level up their hacking skills. This year, they organized a Halloween-themed CTF in the Cybersecurity Awareness Month in October 2022, which challenged contestants for a variety of categories of cybersecurity problems including Web Exploitation, Reverse Engineering, Forensics, and Compromise (also known as Pwn). Mr Hopkins Kong, coach of the PolyU CTF Team and MPhil student in the EIE Department, has led the team “NuttyShell” to win the championship among a total of 6367 players worldwide.

Prof. Changyuan Yu Elected 2023 Optica Fellow

We are pleased to share that Prof. Changyuan Yu has been elected a Fellow of Optica for 2023 for his significant contributions to signal processing in optical fiber communication and sensing systems, and actively serving the optics community! This distinction was awarded by the Optica, formerly known as The Optical Society (OSA), to 109 members from 24 countries, for their outstanding contributions to business, education, research, engineering, and service to Optica and the community. Optica is dedicated to promoting the generation, application, archiving and dissemination of knowledge in optics and photonics worldwide. Fellow membership in Optica is limited to no more than ten percent of the membership and is reserved for members who have served with distinction in the advancement of optics and photonics. Congregations to Prof. Yu for his achievements!

Best Paper Award, the 22nd International Conference on Algorithms and Architectures for Parallel Processing (ICA3PP’2022)

Dr Wenjuan Li and her research collaborators from the Aalborg University won the Best Paper Award in the 22nd International Conference on Algorithms and Architectures for Parallel Processing (ICA3PP) 2022 for their paper "EnergyCIDN: Enhanced Energy-aware Challenge-based Collaborative Intrusion Detection in Internet of Things". ICA3PP is one of the most famous events of the world that covers the many dimensions of parallel algorithms and architectures, encompassing fundamental theoretical approaches, practical experimental projects, and commercial components and systems. Due to the structure, distributed intrusion detection may suffer from the insider threats, where a malicious node can share false information to influence the network performance. Dr Li's research team developed EnergyCIDN, an enhanced challenge-based collaborative intrusion detection network by adopting an energy-aware trust management model against advanced insider attacks. The proposed scheme can measure the reputation of an internal node by considering energy consumption, which is especially effective in an IoT environment. The results demonstrated that the proposed approach can be more robust against advanced insider attacks, compared with similar trust management schemes.

PolyU 85th Anniversary activity - Webinar on Carbon Neutrality (Advances in Carbon Neutral Technologies)

Speakers : Professor Yi CUI Director, Precourt Institute for Energy Fortinet Founders Professor of Engineering Department of Materials Science and Engineering, Stanford University Photon Science, SLAC National Accelerator Laboratory Professor Xiaohong GUAN Professor and Director at Xi'an Jiaotong University Xi'an Jiaotong University Professor Weisheng WANG Chief Engineer, China Electric Power Research Institute State Grid Corporation of China Mr. Yin Piu Bill, HO General Manager (Corporate Development) The Hongkong Electric Co., Ltd. (HK Electric) Details & Free Registration : https://www.polyu.edu.hk/feng/wcn/ (Registration Deadline: 21stSeptember 2022) (Successful registrants will receive Zoom login information)

PESA 2022 Home

The 9th International Conference on Power Electronics Systems and Application (PESA) will be held in Sep 2022 in Hong Kong. This three-day conference focuses on the recent research and the industrial projects of power electronics and related technology. Link: http://perc.polyu.edu.hk/pesa2022.html

Wong Wing Yi, Winnie, appointed as PolyU Student Ambassador

Our EE student, Miss WONG Wing Yi, Winnie, has been appointed as one of the 21 PolyU Student Ambassadors.   Professor CY Chung, Head of Department, Professor Alan Lau and Dr Isaac Fung joined the Inauguration Ceremony for PolyU Student Ambassadors 2022-23 and shared her happiness with other student ambassadors.  After a series of training and briefings, Ms. Wong will contribute PolyU in supporting various promotional activities.  All the best to Winnie and thanks for her enthusiasm in performing the ambassadorial duties!

Two Days University Experience Programme 2022 (Online)

Date: 16 and 17 August 2022 (Tue & Wed) Time: starting from 2:15 p.m. Format: 7 online lectures on engineering applications A chance to join a campus and lab tour Welcome secondary 4 - 5 students taking Science, ICT or M1/M2 subject(s) who have interested in Engineering study. Online Registration

Best Paper Award in the International Workshop on Advanced Image Technology 2022

Prof. Kenneth Lam and our PhD student, Mr Jun Xiao, won the Best Paper Award in the International Workshop on Advanced Image Technology (IWAIT) 2022 for their paper “Multi-level Feature Aggregation Network for High Dynamic Range Imaging”. The International Workshop on Advanced Image Technology is a well-known international event that gathers researchers, professors, students and interested persons in the field of advanced image technology. Modern digital cameras typically cannot capture the whole range of illumination, due to the limited sensing capability of sensor devices. High dynamic range (HDR) imaging aims to generate images with a larger range of illumination by merging multiple low-dynamic range (LDR) images with different exposure times. However, when the images are captured in dynamic scenes, existing methods unavoidably produce undesirable artifacts and distorted content. In this paper, the research team proposed a multi-level feature aggregation network, based on the Laplacian pyramid, to address this issue for HDR imaging. The proposed method progressively aggregates non-overlapping frequency sub-bands at different pyramid levels, and generates the corresponding HDR image from coarser to finer scales. This method can significantly outperform other competitive HDR methods, thereby producing HDR images with high visual quality.

Best Student Paper Award in the 2022 IEEE International Conference on Acoustics, Speech, and Signal Processing

Dr Liang Liu and his collaborators in the Chinese Academy of Sciences won the Best Student Paper Award in the 2022 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) for their paper “Efficiently and Globally Solving Joint Beamforming and Compression Problem in the Cooperative Cellular Network Via Lagrangian Duality". ICASSP is the IEEE Signal Processing Society’s flagship conference on signal processing and its applications. Dr Liu’s research team considers the joint beamforming and quantization problem in the cooperative cellular network, where multiple relay-like base stations connected to the central processor via rate-limited fronthaul links cooperatively serve the users. In this paper, they first show that there is no duality gap between the considered problem and its Lagrangian dual by showing the tightness of the semidefinite relaxation (SDR) of the considered problem. Then they propose an efficient algorithm based on Lagrangian duality for solving the considered problem. The proposed algorithm is highly efficient and is guaranteed to find the global solution of the problem.