I am Yuanhao Liu（刘元浩）, a Ph.D. candidate at the Institute of Computing Technology, Chinese Academy of Sciences, affiliated with the National Key Laboratory of Intelligent Algorithm Security, under the supervision of Prof. Huawei Shen（沈华伟）. I received my B.Eng. degree in Software Engineering from the School of Software, Nankai University, in 2020.

My research investigates algorithmic fairness, with the aim of developing technologies that are fair, trustworthy, and socially responsible. Please feel free to email me at liuyuanhao.cn@gmail.com for any form of academic communication or collaboration.

I have published papers at the top international AI conferences such as WWW, SIGIR, CSCW.

🔥 News

• 2025.10:  🎉 Paper accepted to ACM CSCW 2025.

📝 Publications

CSCW 2025

“I Know You Are Discriminatory!”: Automated Substantiating for Individual Fairness Auditing of AI Systems

Yuanhao Liu, Qi Cao, Huawei Shen, Kaike Zhang, Yunfan Wu, Xueqi Cheng

Code

• Designed auditing techniques to evaluate individual fairness in AI systems when access to model internals and training data is restricted, and developed substantiating frameworks for fairness violations.

The Innovation

The rising safety concerns of deep recommender systems

Huawei Shen, Yuanhao Liu, Kaike Zhang, Qi Cao, Xueqi Cheng

• Reviewed the development of recommender systems and the accompanying security issues, particularly fairness, robustness, and filter bubble problems, and outlined future research directions.

SIGIR 2023

Popularity debiasing from exposure to interaction in collaborative filtering

Yuanhao Liu, Qi Cao, Huawei Shen, Yunfan Wu, Shuchang Tao, Xueqi Cheng

Code

• Redefined fairness on the item side of recommendations from the perspective of click volume. The method achieved a win–win between recommendation accuracy and fairness.
• Recognized by the WSDM 2025 Best Paper as a representative approach for popularity debiasing.

• PREP: Pre-training with temporal elapse inference for popularity prediction, Qi Cao, Huawei Shen, Yuanhao Liu, Jinhua Gao, Xueqi Cheng, WWW 2022

🎖 Honors and Awards

• 2024.03 Excellent Student Award from the Institute of Computing Technology, Chinese Academy of Sciences.

📖 Educations

• 2020.09 - (now), Ph.D. Candidate, Institute of Computing Technology, Chinese Academy of Sciences.
• 2016.09 - 2020.07, B.Eng., School of Software, Nankai University.

💬 Invited Talks

• 2025.10, CSCW 2025, Bergen, Norway.
• 2023.07, SIGIR 2023, online.
• 2023.06, AIS 2023, Changsha, China.

💻 Internships