Xiangyu Dong

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Biography

I obtained my Ph.D. at the Department of Systems Engineering and Engineering Management, The Chinese University of Hong Kong (CUHK), supervised by Prof. Sibo Wang.

Before that, I obtained my B.E. in Computer Science and Technology from Beihang University in 2021.

Research Interests

I am interested in graph representation learning and large language models. Current topics include:

Selected Publications

(* denotes co-first author)

  1. SLATE-Rec: Set-Normalized LLM Alignment with Traceable Evidence for Recommendation

    Xiangyu Dong, Lingfei Zeng, Senhao Cheng, Di Jiang, Xun Zhou, Fangyuan Zhang

    Under Review

  2. SPOT: Slot Projection with Optimal Transport for Anti-Cancer Molecule Discovery

    Xiangyu Dong, Lingfei Zeng, Yuanpeng Yao, Jing Tang, Xun Zhou, Fangyuan Zhang

    Under Review

  3. Fair Text, Fair Recommendation: Mitigating Textual Preference Bias in LLM-Based Recommendation Systems

    Xiangyu Dong, Xingyi Zhang, Kun Xie, Bryan Hooi, Sibo Wang

    Under Review

  4. JacobiGAD: Jacobi Polynomial–Powered Heterogeneous Graph-Level Anomaly Detection

    Xiangyu Dong, Xingyi Zhang, Yuanhao Feng, Bo Wang, Guilin Li, Wuxiong Zeng, Xiujun Shu, Bryan Hooi, Yixiang Fang, Sibo Wang

    Under Review

  5. FracAug: Fractional Augmentation boost Graph-level Anomaly Detection under Limited Supervision

    Xiangyu Dong, Xingyi Zhang, Sibo Wang

    Under Review

  6. SpaceGNN: Multi-Space Graph Neural Network for Node Anomaly Detection with Extremely Limited Labels

    Xiangyu Dong, Xingyi Zhang, Lei Chen, Mingxuan Yuan, Sibo Wang

    ICLR 2025

    Paper/code

  7. SmoothGNN: Smoothing-based GNN for Unsupervised Node Anomaly Detection

    Xiangyu Dong, Xingyi Zhang, Yanni Sun, Lei Chen, Mingxuan Yuan, Sibo Wang

    WWW 2025

    Paper/code

  8. KPG: Key Propagation Graph Generator for Rumor Detection based on Reinforcement Learning

    Yusong Zhang*, Kun Xie*, Xingyi Zhang, Xiangyu Dong, Sibo Wang

    WWW 2025

    Paper

  9. Chi-Square Wavelet Graph Neural Networks for Heterogeneous Graph Anomaly Detection

    Xiping Li, Xiangyu Dong, Xingyi Zhang, Kun Xie, Yuanhao Feng, Bo Wang, Guilin Li, Wuxiong Zeng, Xiujun Shu, Sibo Wang.

    KDD 2025

    Paper/code

  10. Rayleigh Quotient Graph Neural Networks for Graph-level Anomaly Detection

    Xiangyu Dong, Xingyi Zhang, Sibo Wang

    ICLR 2024

    Paper/code

  11. Learning-based Attribute-Augmented Proximity Matrix Factorization for Attributed Network Embedding

    Kun Xie*, Xiangyu Dong*, Xingyi Zhang, Qintian Guo, Sibo Wang

    TKDE 2024

    Paper

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