👋 About Me

Hi! I am a PhD student at the Institute of Computing Technology, Chinese Academy of Sciences, advised by Qi Cao and Huawei Shen.

I graduated from the University of Chinese Academy of Sciences with a bachelor’s degree. As part of my undergraduate project, I also had the opportunity to study as an exchange student at the National University of Singapore.

My research interests include trustworthy recommender systems, graph neural networks, and large language models.

📝 Publications

• NeurIPS 2024 Understanding and Improving Adversarial Collaborative Filtering for Robust Recommendation
  Kaike Zhang, Qi Cao, Yunfan Wu, Fei Sun, Huawei Shen, Xueqi Cheng

• RecSys 2024 Accelerating the Surrogate Retraining for Poisoning Attacks Against Recommender Systems
  Yunfan Wu, Qi Cao, Shuchang Tao, Kaike Zhang, Fei Sun, Huawei Shen

• RecSys 2024 Improving the Shortest Plank: Vulnerability-Aware Adversarial Training for Robust Recommender System
  Kaike Zhang, Qi Cao, Yunfan Wu, Fei Sun, Huawei Shen, Xueqi Cheng

• SIGIR 2024 LoRec: Combating Poisons with Large Language Model for Robust Sequential Recommendation
  Kaike Zhang, Qi Cao, Yunfan Wu, Fei Sun, Huawei Shen, Xueqi Cheng

• Information Sciences 2024 IDEA: Invariant Defense for Graph Adversarial Robustness
  Shuchang Tao, Qi Cao, Huawei Shen, Yunfan Wu, Bingbing Xu, Xueqi Cheng

• Information Sciences 2023 Adversarial Camouflage for Node Injection Attack on Graphs
  Shuchang Tao, Qi Cao, Huawei Shen, Yunfan Wu, Liang Hou, Fei Sun, Xueqi Cheng

• TKDE 2023 Graph Adversarial Immunization for Certifiable Robustness
  Shuchang Tao, Qi Cao, Huawei Shen, Yunfan Wu, Liang Hou, Xueqi Cheng

• SIGIR 2023 Popularity Debiasing from Exposure to Interaction in Collaborative Filtering
  Yuanhao Liu, Qi Cao, Huawei Shen, Yunfan Wu, Shuchang Tao, Xueqi Cheng

• SIGIR 2022 INMO: A Model-Agnostic and Scalable Module for Inductive Collaborative Filtering
  Yunfan Wu, Qi Cao, Huawei Shen, Shuchang Tao, Xueqi Cheng

• CIKM 2021 Single Node Injection Attack Against Graph Neural Networks
  Shuchang Tao, Qi Cao, Huawei Shen, Junjie Huang, Yunfan Wu, Xueqi Cheng

📖 Educations

• 2019.09 - Present, PhD, Institute of Computing Technology, Chinese Academy of Sciences, Beijing, China.
• 2018.08 - 2018.12, Exchange Student, National University of Singapore, Singapore.
• 2015.09 - 2019.06, Bachelor’s Degree, University of Chinese Academy of Sciences, Beijing, China.

🏆 Competitions

• 2017 - Gold Medal, ACM-ICPC Asia Regional Contest, Shenyang Site.
• 2013 - First Prize, National Olympiad in Informatics in Provinces (NOIP).