Hi! I am a first-year master student of The Chinese University of Hong Kong, and work as a Research Intern now supervised by Prof. James Cheng. I also worked as a Research Intern in the Center of Machine Learning Research at Peking University, supervised by Prof. Wentao Zhang. Before that, I worked at Century Games AI Group as an AI Engineer Intern in Beijing, mentored by Yuanlei Niu. And I also worked as a Research Intern in the INSIS lab at Beijing Jiaotong University, supervised by Prof. Huaiyu Wan. Previously, I got my B.S. degree in School of Computer and Information Technology from Beijing Jiaotong University (BJTU).
My research interests include: Data Mining, Large Language Models, Knowledge Graph and Recommendation System.
π° News
I'm glad to have such progresses
- 2025-03: ππ Got admitted to the PhD program at HKUST! Thanks, HKUST!
- 2025-03: ππ Our new work HiRAG has been released!
- 2025-02: ππ One paper is accepted by IEEE TKDE 2025!
- 2024-11: ππ We won Huawei Spark Award! Thanks, Huawei!
- 2023-12: ππ Joined CMLR@PKU as Research Intern!
- 2023-07: ππ Joined Century Games as AI Engineer Intern!
π Publications

Retrieval-Augmented Generation with Hierarchical Knowledge
Haoyu Huang*, Yongfeng Huang*, Junjie Yang, Zhenyu Pan, Yongqiang Chen, Kaili Ma, Hongzhi Chen, James Cheng#,Arxiv

Can LLMs be Good Graph Judger for Knowledge Graph Construction?
Haoyu Huang, Chong Chen, Conghui He, Yang Li, Jiawei Jiang, Wentao Zhang#,Arxiv

Next-POI Recommendation via Spatial-Temporal Knowledge Graph Contrastive Learning and Trajectory Prompt
Wei Chen*, Haoyu Huang*, Tianyi Wang, Zhiyu Zhang, Shengnan Guo, Youfang Lin, Huaiyu Wan#,TKDE 2025

Building and Exploiting Spatial-Temporal Knowledge Graph for Next POI Recommendation
Wei Chen, Huaiyu Wan#, Shengnan Guo, Haoyu Huang, Shaojie Zheng, Jiamu Li, Shuohao Lin Youfang LinKBS 2022
Professional Experience
- Research Intern, Husky Data Lab @ The Chinese University of Hong Kong, 2024,2025
- Research Intern, CMLR @ Peking University , Beijing, China, 04.2024-Now
- AI Engineer Intern, AI @ Century Games , Beijing, China, 07.2023-12.2023
- Research Intern, INSIS @ Beijing Jiaotong University , Beijing, China, 04.2022-12.2023

Education
- M.Sc. in Computer Science at The Chinese University of Hong Kong, Hong Kong SAR, China, 2024-2025
- B.S. in Computer Science at Beijing Jiaotong Univeristy, Beijing, China, 2019-2023
Academic service
- Reviewer of ARR Feb 2025