Renyang Liu

Research Fellow, National University of Singapore (NUS). E-mail, ryliu[AT]nus.edu.sg

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I am currently a Research Fellow at the Institute of Data Science, National University of Singapore, Singapore Flag, under the supervision of Prof. See-Kiong Ng👨‍🏫 and collaborating closely with Prof. Tianwei Zhang👨‍🏫 from NTU, Singapore Flag, Prof. Wenjie Feng👨‍🏫 form USTC, China Flag. Before that, I received my PhD degree 🎓 at Yunnan University, China Flag, supervised by Prof. Wei Zhou 👨‍🔬. 📅 From 2022 to 2023, I was a visiting student at the College of Computing and Data Science, NTU, Singapore Flag, under the supervision of Prof. LAM, Kwok Yan 👨‍🏫. 📅 From 2023 to 2024, I am a Research Intern at the School of Cyber Security, SYSU, China Flag, supervised by Prof. Ziyu Lvy👩‍🏫.

📍 Address: Innovation 4.0 🏢, #04-06, Research Link, Singapore 117602, Singapore

💡 Research Interests

  • AI Security & Data Privacy 🔐
  • Machine Unlearning 🧹
  • Adversarial Attacks & Defense ⚔️
  • Trustworthy Generative AI 🛡️

📢 Opportunities

I welcome collaborations, research interns, and visiting students (e.g., CSC) in AI Security and related areas. If you are interested in my research topics, please send me an email for more information.

News

Nov 08, 2025 :tada::tada::tada: Our work on misinformation detection has been accepted to AAAI (CCF-A). Many thanks to my collaborators for their outstanding contributions.✨
Jul 11, 2025 ✨ Our latest paper, Image Can Bring Your Memory Back: A Novel Multi-Modal Guided Attack against Image Generation Model Unlearning, is now available! Check it out!
Jul 05, 2025 :tada::tada::tada: One paper on AIGC natrualness evaluation has been accepted by ACM MM (CCF-A)! Thanks to Prof. Ziyu Lyu and other awesome collaborators. Check it out!
May 28, 2025 :tada::tada::tada: One paper on Image Generation Model Unlearning has been accepted by ACM CCS (CCF-A, Big 4)! Thanks to Prof. Wenjie Feng and other awesome collaborators. Check it out!
Sep 18, 2024 :tada::tada::tada: One paper has been accepted by TMM (SCI Q1, CCF-B, TOP)! Many thanks to my collaborators. :sparkles:
Aug 12, 2024 Start as a Research Fellow at the National University of Singapore. Looking forward to conducting exciting research on AI Security & Data Privacy with Prof. See-Kiong Ng in near future!:sparkles:

Selected Publications

  1. AAAI 2026
    FACTGUARD: Event-Centric and Commonsense-Guided Fake News Detection
    Jing He, Han Zhang, Yuanhui Xiao, Wei Guo, Shaowen Yao, and Renyang Liu*
    In The Fortieth AAAI Conference on Artificial Intelligence (AAAI), 2026
  2. MM 2025
    D-Judge: How Far Are We? Assessing the Discrepancies Between AI-synthesized Images and Natural Images through Multimodal Guidance
    Renyang Liu, Ziyu Lyu, Wei Zhou, and See-Kiong Ng
    In ACM International Conference on Multimedia (MM), 2025
  3. CCS 2025
    Rethinking Machine Unlearning in Image Generation Models
    Renyang Liu, Wenjie Feng, Tianwei Zhang, Wei Zhou, Xueqi Cheng, and See-Kiong Ng
    In ACM Conference on Computer and Communications Security (CCS), 2025
  4. TMM 2025
    STBA: Towards Evaluating the Robustness of DNNs for Query-Limited Black-box Scenario
    Renyang Liu, Kwok-Yan Lam, Wei Zhou, Sixing Wu, Jun Zhao, Dongting Hu, and Mingming Gong
    IEEE Transactions on Multimedia, 2025
  5. TIFS 2024
    Boosting Black-box Attack to Deep Neural Networks with Conditional Diffusion Models
    Renyang Liu, Wei Zhou, Tianwei Zhang, Kangjie Chen, Jun Zhao, and Kwok-Yan Lam
    IEEE Transactions on Information Forensics and Security, 2024