Yichi Zhang (ๅผ ไบฆๅผ›)

I am a undergraduate student at Zhejiang University ISEE.

I major in Information Engineering and minoring Computer Science and Technology. Currently, I am taking courses in my fouth year and participating research work at NESA Lab, under the guidance of Prof. Shouling Ji and Prof. Xiaogang Xu. I also collaborate with Prof. Ting Wang as a summer research intern. My research interests lie in ๐Ÿ”trustworthy machine learning and ๐Ÿ“š๏ธmachine learning theory.

profile photo
yichics02 [at] gmail [dot] com yichizhang [at] zju [dot] edu [dot] cn

๐Ÿ” Now I am looking for 25 Fall CS/ECE Ph.D. opportunity. If you think I am a suitable candidate, please contact me :)

News

[10/2024] ๐Ÿ“‘ One paper about Backdoor in Federated Learning is released.
[03/2024] ๐Ÿ”ฌ I will be an intern of ALPS in SBU this summer!
[12/2023] ๐Ÿ“‘ One paper about Generated Image Detection is released on the arXiv.

Research Interests

I am committed to building trustworthy AI systems capable of handling complex tasks in critical scenarios. I believe it is essential to address three key factors: robustness, safety, and interpretability. Driven by these considerations, I aim to explore the following research questions:
โ€ข How can we ensure that models maintain sufficient robustness during interactions with external environments?
โ€ข How can we minimize bias and harmful content in model outputs to promote fairness and reliability?
โ€ข How can we establish comprehensive benchmarks that measures the trustworthiness LLMs from multiple dimensions?

In my past years of research experience, I have also explored these research directions:
AIGC Detection: How to quickly and accurately distinguish between real content and AI-generated content to protect property and personal safety from the harm of false information.
Backdoor Attack: How to design new backdoor attack paradigms to expose security vulnerabilities in machine learning models, providing new perspectives for secure and trustworthy defense mechanisms.
LLM Security: How to enhance the robustness of large language models to ensure their outputs are free from bias and harmful content, enabling their application in safety-critical complex tasks.

Publications
Revisiting Defense Mechanisms in Federated Learning: Effective and Efficient Backdoor Attack via Trigger Pre-optimization
Xi Chen, Rui Zeng, Chunyi Zhou, Yichi Zhang, Yuwen Pu, Qingming Li, Zhe Liu, Lu Zhou, Shouling Ji
Under Review
Paper / Code
Diffusion Noise Feature: Accurate and Fast Generated Image Detection
Yichi Zhang, Xiaogang Xu
Under Review
Paper / Code / arXiv
Experience
ALPS Lab, Stony Brook University
Research Intern
mentor: Ting Wang
Jun 2024 ~ Sep 2024
Zhejiang Laboratory, Hangzhou, China
Research Intern
mentor: Xiaogang Xu
Jun 2023 ~ Sep 2023
NESA Lab, Zhejiang University, Hangzhou, China
Research Intern
mentor: Shouling Ji
Jun 2023 ~ Now
Misc.

โšพ๏ธ I am a big baseball fan of the Los Angeles Dodgers.
๐ŸŽฎ I am a big fan of Souls-like games, with Dark Souls 3 being my favorite.
๐Ÿฅ‡ I participated in physics and math olympiads in high school.
๐Ÿƒโ€โ™‚๏ธ I am a long-distance running enthusiast.
๐Ÿ“ท I am a photography enthusiast, using a Fuji XT-5.