About Me

I am currently a Ph.D. student at the School of Electrical Engineering and Computer Science, the University of Queensland, supervised by A/Prof. Guangdong Bai and Dr. Jason Xue. My research focuses on tackling real-world security & privacy issues, especially on building trustworthy AI and designing privacy-preserving systems.

Research Interests

Trustworthy and Responsible AI
Safety of Multimodal Models and Large Language Models
NSFW Content Generation and Mitigation
Privacy-Preserving on Purpose Limitation Principle

News

[Sep. 2023] I pass my Ph.D. milestone 1 progress review (confirmation)!
[Sep. 2023] I am invited to become a reviewer of IEEE TDSC and TSC.
[Aug. 2023] I present our work on enforcing purpose limitation with polynomial approximation at USENIX Security’24!
[Jul. 2024] Our paper on unveiling IP vulnerabilities of GAN-based distributed ML is accepted by CIKM’24!
[Jun. 2024] I am the winner of the Richard Jago Memorial Prize!
[Feb. 2024] Our paper on algorithmic purpose limitation is accepted by USENIX Security’24!
[Aug. 2023] Our paper on formalizing neural network perturbation is accepted by ICFEM’23!
[Apr. 2023] I become a Ph.D. student at UQ supervised by A/Prof. Guangdong Bai and Dr. Jason Xue!
[Dec. 2022] I am successful in applying for CSIRO’s Data61 full scholarship with top-up!
[Jan. 2021] Our paper on the LSTM-based hybrid water level prediction method is accepted by JASSE!

Selected Publications

Being Transparent is Merely the Beginning: Enforcing Purpose Limitation with Polynomial Approximation
Shuofeng Liu, Zihan Wang, Minhui Xue, Long Wang, Yuanchao Zhang, Guangdong Bai. USENIX Security 2024
PDF BibTex

Unveiling Intellectual Property Vulnerabilities of GAN-Based Distributed Machine Learning through Model Extraction Attacks
Mengyao Ma, Shuofeng Liu, M.A.P. Chamikara, Long Wang, Mohan Baruwal Chhetri, Guangdong Bai. CIKM 2024
PDF BibTex

Formalizing Robustness Against Character-Level Perturbations for Neural Network Language Models
Zhongkui Ma, Xinguo Feng, Zihan Wang, Shuofeng Liu, Mengyao Ma, Hao Guan, Mark Huasong Meng. ICFEM 2023
PDF BibTex

LSTM Based Hybrid Method for Basin Water Level Prediction by Using Precipitation Data
Shuofeng Liu, Puwen Lei, Koji Koyamada. JASSE 2021
PDF BibTex