👋 Welcome to my site!

Hello! 😊 I’m Xuan Liu, a senior-year Electronic and Information Engineering undergraduate at Hong Kong Polytechnic University. I’m a highly self-motivated researcher and innovator with a robust ability in execution and leadership.

My research interests lie in Trustworthy & Cognitive AI, Privacy, Large-Scale Models, and Attack & Defense Algorithms. I am honored to have been advised and collaborated with Prof. Song Guo, at HKUST (Hong Kong), Prof. Quanyan Zhu, at NYU (New York), and Prof. Xiaoxiao Li, at UBC (Vancouver) during my undergraduate period.

In addition to academic pursuits, I’m the founder of BreathingCORE, an eco-friendly IoTs technology startup in Hong Kong. I am also an inventor with patents in sustainable energy & negative carbon-related technologies.

🚀 What’s New

2025-7 🎓 Xuan graduated from The Hong Kong Polytechnic University with First Class Honors and was listed on the Dean’s Honor List consecutively!
2025-1 📝 Xuan’s first author “Exploring Prosocial Irrationality for LLM Agents: A Social Cognition View” has been accepted by ICLR-2025.
2025-1 🤝 Xuan received “Hsin Chong-K.N. Godfrey Yeh Education Fund”.
2024-12 📝 Xuan’s first author work “Mjölnir: Breaking the Shield of Perturbation-Protected Gradients via Adaptive Diffusion” has been accepted by AAAI-2025.
2024-12 📝 Xuan’s co-author work “PriFairFed: A Local Differentially Private Federated Learning Algorithm for Client-Level Fairness” has been accepted by IEEE Transactions on Mobile Computing.
2024-8 📝 Xuan’s first author work “Mutual Gradient Inversion: Unveiling Privacy Risks of Federated Learning on Multi-modal Signals” has been accepted by IEEE Signal Processing Letters.
2024-4 🏆 Xuan received the Best Undergraduate Research Project Award! See University Official Posts & Interview at Instagram, LinkedIn.
2024-1 🤝 Xuan’s Start-up BreathingCORE won MicroFund Shortlisted Team and has been selected for Hong Kong Science and Technology Park Ideation Program!
2023-12 Xuan won “Outstanding Proposal of Belt and Road Initiatives Youth Creative International Challenge”. See University Official Posts at Facebook
2023-11 Xuan received “98th IEEE-VTC Fall Volunteer Service Award”.
2023-9 🏆 Xuan won “Champion of Innovation & Entrepreneurship Training Camp Roadshow,” securing a 7K CNY cash award.
2023-7 🏆 Xuan received “Department of Electronic and Information Engineering Scholarship for Hall Residents”, for the Top 1 GPA in the academic year of 2022 in the Dept.
2023-4 Xuan received “Hong Kong Government-Researching Out Award”.
2023-4 Xuan received “Hong Kong Government-Talent Development Scholarship”.
2023-2 📝 Xuan’s first author work “MGIA: Mutual Gradient Inversion Attack in Multi-Modal Federated Learning” has been published on AAAI-2023.
2022-12 Xuan received “Dr. Winnie S M Tang-PolyU Student Innovation & Entrepreneurship Scholarship “.
2022-11 🏆 Xuan won “Best GPA Award” Department of Electronic and Information Engineering.
2022-8 Xuan received the “Shenzhen Innovation & Entrepreneurship Competition Outstanding Award,” securing a 7K CNY cash award.