About me

I am currently a fifth-year Ph.D. student at Peking University and very fortunate to be advised by Prof. Qingni Shen. I work closely with Prof. Jiaheng Zhang. And I also collaborate closely with Prof. Hang Su and Dr. Yinpeng Dong from Tsinghua University.

I was a visiting Ph.D. student at the Nanyang Technological University advised by Prof. Yang Liu from December 2023 to August 2024.

My research mainly focuses on Trustworthy AI. Recently, I focus more on the security, privacy and copyright issues associated with generative models, particularly diffusion models and large language models (LLMs). Feel free to drop me an email if you are interested in our work, and I am always willing to work together on interesting projects with external collaborators.

News!

• Our paper “Efficient Backdoor Detection on Text-to-image Synthesis via Neuron Activation Variation” has been accepted by ICLR 2025 Workshop on Foundation Models in the Wild (FM-Wild, accepted as a Tiny Paper). See you in Singapore!
• Our paper “Membership Inference on Text-to-Image Diffusion Models via Conditional Likelihood Discrepancy” has been accepted by NeurIPS 2024. See you in Vancouver!
• I will serve as an AEC member of CCS 2024.
• Our paper “Text-to-image Diffusion Models Can be Easily Backdoored through Multimodal Data Poisoning” has been accepted by ACM MM 2023 (Oral).
• Our paper “NCL: Textual Backdoor Defense Using Noise-augmented Contrastive Learning” has been accepted by ICASSP 2023.

Service

• Committee Members:

  CCS AEC 2024,

• Reviewer for Journals:

  IEEE TPAMI, IEEE TNNLS, Elsevier Computer & Security,

• Reviewer for Conferences:

  ICLR, CVPR, ACM MM, AAAI, ACL, AsiaCCS, ECAI, ICASSP, ICICS,

Teaching

• Development of Artificial Intelligence Applications – Teaching Assistant, Spring 2023.

Competitions

• ByteDance Security AI Challenge: Top 2% (Textual Adversarial Attack Track, 2022.10)

Prestigious Awards

• [2023] Academic Innovation Award (Top 1%), Peking University.
• [2023, 2021] Shenzhen Stock Exchange Scholarship, Peking University.
• [2022] Award for Academic Excellence, Peking University.
• [2021] Merit Student, Peking University.

Bio

• [2020-present] Ph.D. Student in Software Engineering, Peking University
• Supervisor: Prof. Qingni Shen
• [2024.9-present] Research Assistant, National University of Singapore
• Supervisor: Prof. Jiaheng Zhang
• [2023.12-2024.8] Visiting Ph.D. Student, Nanyang Technological University
• Supervisor: Prof. Yang Liu
• [2016-2020] B.S. in Computer Science and Technology (Honored Program), China Agricultural University (CAU)

Personal Life

• I enjoy sports, particularly running, and playing basketball with friends.

Friend Links

• Xin Zhang
• Junkai Liang