Currently, I am a third-year PhD student in the School of Computer Science, Peking University, supervised by Prof. Leye Wang. Before that, I received my B.E. degree from Shanghai University of Finance and Economics in 2023, supervised by Prof. Xiao Han.

My research interests lie in data mining, LLM applications, and reinforcement learning.

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📝 Publications

(*corresponding authors, ^#co-first authors)

• Learning-based Privacy-Preserving Graph Publishing Against Sensitive Link Inference Attacks
  Yucheng Wu^#, Yuncong Yang^#, Xiao Han*, Leye Wang, Junjie Wu
  [CCF-A] IEEE Transactions on Information Forensics & Security (2025)
  Paper | arXiv | Code

• Efficient User Sequence Learning for Online Services via Compressed Graph Neural Networks
  Yucheng Wu, Liyue Chen, Yu Cheng, Shuai Chen*, Jinyu Xu, Leye Wang*
  [CCF-B] IEEE ICWS 2024 (Track: Regular Full Paper)
  Paper | arXiv | Code | Slides

• Graph Contrastive Learning with Cohesive Subgraph Awareness
  Yucheng Wu, Leye Wang*, Xiao Han*, Han-Jia Ye
  [CCF-A] The Web Conference 2024 (Track: Graph Algorithms and Learning for the Web)
  Paper | arXiv | Code | Video | Poster

🛠️ Projects

• DataGuard: An Open Source Platform for Secure Data Publication
  Xiao Han, Yuncong Yang, Yucheng Wu, Yi Li, Cunyao Zhou, Leye Wang
  Website | Code
  We won the third prize of the 2023 Jiangsu Health and Medical Big Data Innovation Application Competition (7/87) and the first prize of the 2023 Shanghai Open Source Innovation Excellence Achievement Award.

📝 Services

• Reviewer for KDD 2025 Research Track Aug (5).
• Reviewer for KDD 2025 Research Track Feb (2).

📚 Teaching

• Teaching Assistant of Data Structures and Algorithms A by Prof. Leye Wang, Peking University, Fall 2024.
• Teaching Assistant of Data Structures and Algorithms A by Prof. Leye Wang, Peking University, Fall 2023.

💻 Internships

• Intern of 2025 Tencent Rhino-bird Research Elite Program, Tencent (CDG), 2025.05 ~ Now.
• Modeling Group Intern (Remote), Beijing HealSci Technology, 2023.10 ~ 2024.06.

🏆 Competition

• 2025, Tencent Advertising Algorithm Competition, 55/2800+
• 2022, First Prize of Chinese Computer Design Competition, 293/30000+

🎖 Awards

• 2025, Outstanding Research Award, PKU
• 2025, Outstanding Student, Tencent Rhino-bird Open Source Talent Development Program (183/2300+)
• 2024, Merit Student Pacesetter, PKU (10/600)
• 2024, National Scholarship, Chinese Ministry of Education
• 2023, Outstanding Graduate, Shanghai Municipal Commission of Education
• 2023, Outstanding Undergraduate Thesis, SUFE
• 2021, National Scholarship, Chinese Ministry of Education
• 2020, National Scholarship, Chinese Ministry of Education

📖 Educations

• 2023.09 ~ Now, PhD Student, School of Computer Science, Peking University (PKU)
• 2019.09 ~ 2023.06, Undergraduate, School of Information Management and Engineering, Shanghai University of Finance and Economics (SUFE)