Yichi Zhang「张亦弛」
- Ph.D. Student in Informatics
- College of Information Sciences and Technology
- The Pennsylvania State University
- State College, PA, United States
About
Yichi Zhang is a second-year Informatics Ph.D. student in the College of Information Sciences and Technology at The Pennsylvania State University, advised by Dr. Yuchen Yang. Previously, he received his B.E. in Information Engineering from Zhejiang University.
His research interests include X × Y, where
- X = { Security, System, Theory, ... }
- Y = { Machine Learning, Language Model, ... }
Seeking research internships for Summer 2027.
News
- One paper was accepted by IEEE S&P 2027.
- One paper was accepted by IEEE TIFS.
- One paper was accepted by USENIX Security 2026.
- One paper was accepted by ICML 2026.
- One paper was accepted by ECAI 2025.
- Accepted into the Informatics Ph.D. program at Penn State.
Contact
Email: X @ Y, where
- X = { yichi.zhang.cs }, Y = { gmail.com }
- X = { yichi.zhang }, Y = { psu.edu }
- X = { ymz5721 }, Y = { psu.edu }
X = { yichics02 }, Y = { gmail.com }X = { yichizhang }, Y = { zju.edu.cn }
Publications
* indicates equal contribution.
Peer-reviewed Conference and Journal Papers
2026
Secure Speculative Decoding for Large Language ModelsYichi Zhang, Zhiqi Wang, Neil Gong, Yuchen YangTo appear In Proceedings of the 48th IEEE Symposium on Security and Privacy (IEEE S&P 2027)
HijackKV: New Threat in Position-Independent KV Cache ReuseYichi Zhang, Zhiqi Wang, Huan Zhang, Yuchen YangIn Proceedings of the 35th USENIX Security Symposium (USENIX Security 2026)
Rethinking Forgery Attacks on Semantic Watermarks in Black-Box Settings: A Geometric Distortion PerspectiveCheng-Yi Lee, Yichi Zhang, Yuchen Yang, Chun-Shien Lu, Jun-Cheng ChenIn Proceedings of the 43rd International Conference on Machine Learning (ICML 2026)
PREFed: An Effective and Stealthy Static-Anchor Backdoor Attack via Trigger Pre-Optimization in Federated LearningXi Chen, Rui Zeng, Chunyi Zhou, Yichi Zhang, Yuwen Pu, Qingming Li, Lu Zhou, Zhe Liu, Shouling JiIEEE Transactions on Information Forensics and Security (IEEE TIFS)
2025
Diffusion Noise Feature: Accurate and Fast Generated Image DetectionYichi Zhang, Xiaogang XuIn Proceedings of the 28th European Conference on Artificial Intelligence (ECAI 2025)
Preprints
Implicit Neural Compression of Point Clouds via Learnable ActivationYichi Zhang, Qianqian YangarXiv:2504.14471
Lost in Compaction: Evaluating Side-Constraint Loss under Context CompactionZhiqi Wang, Yichi Zhang, Dongwon Lee, Yuchen YangarXiv:2608.11242
Service
Reviewer
International Conference on Machine Learning (ICML)
AAAI Conference on Artificial Intelligence (AAAI)
IEEE Transactions on Information Forensics and Security (IEEE TIFS)
Awards and Grants
USENIX Security Student Travel Grant
Academic Scholarship, Zhejiang University