Hi, I'm Jiachen Lei 👋
I hold an M.S. degree from Cyberspace Security Lab at Zhejiang University. During my time there, I had the privilege of being mentored by Professor Zhongjie Ba.
My academic journey has been enriched by diverse experiences, including an internship at Microsoft Research under the expert guidance of Shuang Ma, as well as an internship in Professor Anima Anandkumar's group, where I had the privilege of receiving valuable support from Professor Anima Anandkumar, Julius Berner and Professor Chaowei Xiao.
Currently, I am passionate about:
- Generative Model: Efficiency, Theory and its Application.
- Multi-modality: Unified Training Framework
- Security: AIGC Pre/Post-defense, Robustness
This is me at ICCV2023
Feel free to drop me an email if you would like to cooporate. Contact: jiachenlei at zju.edu.cn or jiachenleiii at gmail.com
Publications
(ICLR2025) Robust Representation Consistency Model via Contrastive Denoising
Jiachen Lei, Julius Berner, Jiongxiao Wang, Zhongzhu Chen, Chaowei Xiao, Zhongjie Ba, Kui Ren, Jun Zhu, Anima Anandkumar
Paper Link: https://arxiv.org/abs/2501.13094
(Neurips2025) Consistency Purification: Effective and Efficient Diffusion Purification towards Certified Robustness
Yiquan Li*, Zhongzhu Chen*, Kun Jin*, Jiongxiao Wang*, Jiachen Lei, Bo Li, Chaowei Xiao* : first author, equal contribution
Paper Link: https://nips.cc/virtual/2024/poster/93342
Masked Diffusion Models are Fast Distribution Learners
Jiachen Lei, Qinglong Wang, Peng Cheng, Zhongjie Ba*, Zhan Qin, Zhibo Wang, Zhenguang Liu, Kui RenPaper Link: https://arxiv.org/abs/2309.14122
(CCS2024) SurrogatePrompt: Bypassing the Safety Filter of Text-To-Image Models via Substitution
Zhongjie Ba, Jieming Zhong, Jiachen Lei, Peng Cheng, Kui Ren*Paper Link: https://arxiv.org/abs/2309.14122
Experience
Zhejiang University
Sep 2020 - Mar 2023
Master, Artificial IntelligenceShanghai Unversity of Electric Power
Sep 2016 - June 2020
Undergraduate, Electrical Engineering