I am Chen Zheyu. Currently, I am a Dual PhD student at Beijing Institute of Technilogy AND The Hong Kong Polytechnic University, and my the supervisors are Prof. Kaiyu Feng (BIT) and Prof. Haibo Hu (PolyU@ASTAPLE Lab).
My primary research interests lie in AI4Database, Graph Learning, and Robusterness.
Feel free to contact me via Email or WeChat.
📝 Publications

Multi-modal Dynamic Proxy Learning for Personalized Multiple Clustering
Jinfeng Xu, Zheyu Chen, Shuo Yang, Jinze Li, Ziyue Peng, Zewei Liu, Hewei Wang, Jiayi Zhang, and Edith Ngai
- We propose Multi-DProxy, a novel multi-modal dynamic proxy learning framework that leverages cross-modal alignment through learnable textual proxies.

A Survey on Multimodal Recommender Systems: Recent Advances and Future Directions
Jinfeng Xu, Zheyu Chen, Shuo Yang, Jinze Li, Wei Wang, Xiping Hu, Steven Hoi, Edith Ngai
- This survey serves as a comprehensive guide for researchers and practitioners in MRS field, providing insights into the current state of MRS technology and identifying areas for future research.

Jinfeng Xu, Zheyu Chen, Jinze Li, Shuo Yang, Wei Wang, Xiping Hu, Raymond Chi-Wing Wong, Edith Ngai
- We propose a sharpness-aware minimization strategy focused on batch data (BSAM), which effectively enhances the robustness and generalization capability of multimodal recommender systems without requiring extensive hyper-parameter tuning. Furthermore, we introduce a mixed loss variant strategy (BSAM+), which accelerates convergence and achieves remarkable performance improvement.

Hypercomplex Prompt-aware Multimodal Recommendation
Zheyu Chen, Jinfeng Xu, Hewei Wang, Shuo Yang, Zitong Wan, Haibo Hu
- We propose HPMRec, a novel Hypercomplex Prompt-aware Multimodal Recommendation framework, which utilizes hypercomplex embeddings in the form of multi-components to enhance the representation diversity of multimodal features. [Code]

Enhancing Graph Collaborative Filtering with FourierKAN Feature Transformation
Jinfeng Xu, Zheyu Chen, Jinze Li, Shuo Yang, Wei Wang, Xiping Hu, Edith Ngai
- Graph Collaborative Filtering (GCF) has achieved state-of-the-art performance for recommendation tasks. [Code]

The Best is Yet to Come: Graph Convolution in the Testing Phase for Multimodal Recommendation
Jinfeng Xu, Zheyu Chen, Shuo Yang, Jinze Li, Edith Ngai

Jinfeng Xu, Zheyu Chen, Shuo Yang, Jinze Li, Hewei Wang, Wei Wang, Xiping Hu, Edith Ngai

MDVT: Enhancing Multimodal Recommendation with Model-Agnostic Multimodal-Driven Virtual Triplets
Jinfeng Xu, Zheyu Chen, Jinze Li, Shuo Yang, Hewei Wang, Yijie Li, Mengran Li, Puzhen Wu, Edith Ngai
- Spec-LLaVA: Accelerating Vision-Language Models with Dynamic Tree-Based Speculative Decoding, Mingxiao Huo, Jiayi Zhang, Hewei Wang, Jinfeng Xu, Zheyu Chen, Huilin Tai, Ian Yijun Chen, TTODLer-FM @ ICML 2025

Squeeze and Excitation: A Weighted Graph Contrastive Learning for Collaborative Filtering
Zheyu Chen, Jinfeng Xu, Yutong Wei, Ziyue Peng
- A critical problem in existing GCL-based models is the irrational allocation of feature attention. This problem limits the model’s ability to effectively leverage crucial features, resulting in suboptimal performance. To address this, we propose a Weighted Graph Contrastive Learning framework (WeightedGCL). [Code]

COHESION: Composite Graph Convolutional Network with Dual-Stage Fusion for Multimodal Recommendation
Jinfeng Xu, Zheyu Chen, Wei Wang, Xiping Hu, Sang-Wook Kim, Edith Ngai
- Modality fusion and representation learning were considered as two independent processes in previous work. In this paper, we reveal that these two processes are complementary and can support each other. Specifically, powerful representation learning enhances modality fusion, while effective fusion improves representation quality. Stemming from these two processes, we introduce a COmposite grapH convolutional nEtwork with dual-stage fuSION for the multimodal recommendation, named COHESION. [Code]

Zheyu Chen, Jinfeng Xu, Haibo Hu
- To address the over-smoothing problem, we propose a novel model that retains the personalized information of ego nodes during feature aggregation by Reducing Node-neighbor Discrepancy (RedN^nD). [Code]

MENTOR: Multi-level Self-supervised Learning for Multimodal Recommendation
Jinfeng Xu, Zheyu Chen, Shuo Yang, Jinze Li, Hewei Wang, Edith Ngai
- To this end, we propose a Multi-level sElf-supervised learNing for mulTimOdal Recommendation (MENTOR) method to address the label sparsity problem and the modality alignment problem. [Code]

AlignGroup: Learning and Aligning Group Consensus with Member Preferences for Group Recommendation
Jinfeng Xu, Zheyu Chen, Jinze Li, Shuo Yang, Hewei Wang, Edith Ngai
- Group activities are important behaviors in human society, providing personalized recommendations for groups is referred to as the group recommendation task. [Code]

Jinfeng Xu, Zheyu Chen, Zixiao Ma, Jiyi Liu, Edith Ngai
- The Internet is booming with information, and it has become especially difficult for consumers to sift through the information. Recommendation systems can effectively enhance the consumer experience.
- A Review of Gray-scale Image Recoloring Methods With Neural Network Based Model, Yuyang Wang, Tianli Ren, Zhuoyi Zhang, Zheyu Chen, Jinfeng Xu, Zixiao Ma, Pai Zhu, Mingjia Zhang, ICIVC 22
📑 Academic Services
Conference
- International Conference on Machine Learning Reviewer (ICML)
- ACM SIGKDD Conference on Knowledge Discovery and Data Mining Reviewer (SIGKDD)
- ACM International Conference on Multimedia Reviewer (ACM MM)
- Annual AAAI Conference on Artificial Intelligence Program Committee (AAAI)
- IEEE International Conference on Acoustics, Speech, and Signal Processing Reviewer (ICASSP)
- IEEE International Joint Conference on Neural Networks Reviewer (IJCNN)
Transaction / Journal
- ACM Transactions on Information Systems Reviewer (TOIS)
- IEEE Transactions on Multimedia Reviewer (TMM)
- IEEE Transactions on Big Data Reviewer (TBD)
- Neural Networks Reviewer (NN)
- IEEE Wireless Communications Magazine Reviewer
💬 Talks
- Invited Talk
- Data Science Lab, Hanyang University, Seoul, Korea, 2025.11
- Conference Presentation
- KDD 2026, Jeju, Korea, 2026.8
- CIKM 2025, Seoul, Korea, 2025.11
- ICASSP 2025, Hyderabad, India, 2025.04 (Virtual)
- Poster Presentation
- SIGIR 2025, Padova, Italy, 2025.08
- ICASSP 2025 Satellite conference, Suzhou, China, 2025.05
🎓 Educations
- 2026.09 - Present, The Hong Kong Polytechnic University. PhD student at ASTAPLE Lab
- 2025.09 - Present, Beijing Institute of Technology. PhD student at Computer Science
- 2025.04 - 2025.08, Hong Kong Polytechnic University. Research Assistant at ASTAPLE Lab
- 2023.09 - 2025.03, Hong Kong Polytechnic University. Master of Science Major in Electronic and Information Engineering
- 2019.09 - 2023.07, Beijing University of Technology & University College Dublin. Bachelor of Science Major in Software Engineering