PPaperPicks

Chaochao Chen

Zhejiang University, Hangzhou, China

43 papers at tracked venues · 37 at CORE A* · active 2024–2026

DBLP profile ↗ORCID 0000-0003-1419-964X ↗Google Scholar ↗Homepage ↗

Venues

AAAI ×10WWW ×7NeurIPS ×5ICML ×4SIGIR ×4SIGKDD ×3CIKM ×2IJCAI ×2ACM MM ×1CVPR ×1EMNLP ×1ICDE ×1ICLR ×1WSDM ×1

Frequent coauthors

Xiaolin Zheng
×24
Weiming Liu
×18
Yuyuan Li
×14
Xinting Liao
×14
Jun Wang
×10
Pengyang Zhou
×9
Xiaohua Feng
×9
Fengyuan Yu
×7
Li Zhang
×7
Fan Wang
×7
Jiahe Xu
×6
Jianwei Yin
×6

Papers

  1. FedAU2: Attribute Unlearning for User-Level Federated Recommender Systems with Adaptive and Robust Adversarial Training
    AAAI 2026 ·
    Yuyuan Li
    ,
    Junjie Fang
    ,
    Fengyuan Yu
    ,
    Xichun Sheng
    ,
    Tianyu Du
    ,
    Xuyang Teng
    ,
    Shaowei Jiang
    ,
    Linbo Jiang
    ,
    Jianan Lin
    , Chaochao Chen
  2. LLM-enhanced Federated Graph Learning with Geometry-aware Graph Projection and Shared Subspace Aggregation
    WWW 2026 ·
    Pengyang Zhou
    ,
    Zhihao Huang
    ,
    Jiahe Xu
    ,
    Wu Wen
    ,
    Xiaolin Zheng
    , Chaochao Chen,
    Jianwei Yin
  3. Potent but Stealthy: Rethink Profile Pollution Against Sequential Recommendation via Bi-Level Constrained Reinforcement Paradigm
    AAAI 2026 ·
    Jiajie Su
    ,
    Zihan Nan
    ,
    Yunshan Ma
    ,
    Xiaobo Xia
    ,
    Xiaohua Feng
    ,
    Weiming Liu
    ,
    Xiang Chen
    ,
    Xiaolin Zheng
    , Chaochao Chen
  4. STG-DGR: Fraud Detection on Streaming Transaction Graphs with Diffusion-based Generative Replay
    WWW 2026 ·
    Rui Ou
    ,
    Kun Zhu
    ,
    Nana Zhang
    ,
    Jiangtong Li
    , Chaochao Chen,
    Changjun Jiang
  5. Sharpness-Aware Minimization for Generalized Embedding Learning in Federated Recommendation
    WWW 2026 ·
    Fengyuan Yu
    ,
    Xiaohua Feng
    ,
    Yuyuan Li
    ,
    Changwang Zhang
    ,
    Jun Wang
    , Chaochao Chen
  6. TOFA: Training-Free One-Shot Federated Adaptation for Vision-Language Models
    AAAI 2026 ·
    Li Zhang
    ,
    Zhongxuan Han
    ,
    Xiaohua Feng
    ,
    Jiaming Zhang
    ,
    Yuyuan Li
    ,
    Linbo Jiang
    ,
    Jianan Lin
    , Chaochao Chen
  7. Taming the Long Tail: Efficient Item-wise Sharpness-Aware Minimization for LLM-based Recommender Systems
    WWW 2026 ·
    Jiaming Zhang
    ,
    Yuyuan Li
    ,
    Xiaohua Feng
    ,
    Li Zhang
    ,
    Longfei Li
    ,
    Jun Zhou
    , Chaochao Chen
  8. Targeting Borderline Fraudsters: Multi-View Hypergraph Fraud Detection with LLM-Guided Contrastive Learning
    AAAI 2026 ·
    Rui Ou
    ,
    Kun Zhu
    ,
    Nana Zhang
    ,
    Jiangtong Li
    , Chaochao Chen,
    Yuhua Xu
    ,
    Changjun Jiang
  9. Controllable Unlearning for Image-to-Image Generative Models via ϵ-Constrained Optimization
    ICLR 2025 ·
    Xiaohua Feng
    ,
    Yuyuan Li
    , Chaochao Chen,
    Li Zhang
    ,
    Longfei Li
    ,
    Jun Zhou
    ,
    Xiaolin Zheng
  10. DR-VAE: Debiased and Representation-enhanced Variational Autoencoder for Collaborative Recommendation
    AAAI 2025 ·
    Fan Wang
    , Chaochao Chen,
    Weiming Liu
    ,
    Minye Lei
    ,
    Jintao Chen
    ,
    Yuwen Liu
    ,
    Xiaolin Zheng
    ,
    Jianwei Yin
  11. Efficient Source-free Unlearning via Energy-Guided Data Synthesis and Discrimination-Aware Multitask Optimization
    ICML 2025 ·
    Xiuyuan Wang
    , Chaochao Chen,
    Weiming Liu
    ,
    Xinting Liao
    ,
    Fan Wang
    ,
    Xiaolin Zheng
  12. FOCoOp: Enhancing Out-of-Distribution Robustness in Federated Prompt Learning for Vision-Language Models
    ICML 2025 ·
    Xinting Liao
    ,
    Weiming Liu
    ,
    Jiaming Qian
    ,
    Pengyang Zhou
    ,
    Jiahe Xu
    ,
    Wenjie Wang
    , Chaochao Chen,
    Xiaolin Zheng
    ,
    Tat-Seng Chua
  13. FedGF: Enhancing Structural Knowledge via Graph Factorization for Federated Graph Learning
    WSDM 2025 ·
    Pengyang Zhou
    , Chaochao Chen,
    Weiming Liu
    ,
    Xinting Liao
    ,
    Fengyuan Yu
    ,
    Zhihui Fu
    ,
    Xingyu Lou
    ,
    Wu Wen
    ,
    Xiaolin Zheng
    ,
    Jun Wang
  14. FedGOG: Federated Graph Out-of-Distribution Generalization with Diffusion Data Exploration and Latent Embedding Decorrelation
    AAAI 2025 ·
    Pengyang Zhou
    , Chaochao Chen,
    Weiming Liu
    ,
    Xinting Liao
    ,
    Wenkai Shen
    ,
    Jiahe Xu
    ,
    Zhihui Fu
    ,
    Jun Wang
    ,
    Wu Wen
    ,
    Xiaolin Zheng
  15. Heterogeneous Temporal Hypergraph Neural Network
    IJCAI 2025 ·
    Huan Liu
    ,
    Pengfei Jiao
    ,
    Mengzhou Gao
    , Chaochao Chen,
    Di Jin
  16. Joint Item Embedding Dual-view Exploration and Adaptive Local-Global Fusion for Federated Recommendation
    SIGIR 2025 ·
    Pengyang Zhou
    , Chaochao Chen,
    Weiming Liu
    ,
    Wenkai Shen
    ,
    Xinting Liao
    ,
    Huarong Deng
    ,
    Zhihui Fu
    ,
    Jun Wang
    ,
    Wu Wen
    ,
    Xiaolin Zheng
  17. Joint Similarity Item Exploration and Overlapped User Guidance for Multi-Modal Cross-Domain Recommendation
    WWW 2025 ·
    Weiming Liu
    , Chaochao Chen,
    Jiahe Xu
    ,
    Xinting Liao
    ,
    Fan Wang
    ,
    Xiaolin Zheng
    ,
    Zhihui Fu
    ,
    Ruiguang Pei
    ,
    Jun Wang
  18. LEGO: A Lightweight and Efficient Multiple-Attribute Unlearning Framework for Recommender Systems
    ACM MM 2025 ·
    Fengyuan Yu
    ,
    Yuyuan Li
    ,
    Xiaohua Feng
    ,
    Junjie Fang
    ,
    Tao Wang
    , Chaochao Chen
  19. LoGoFair: Post-Processing for Local and Global Fairness in Federated Learning
    AAAI 2025 ·
    Li Zhang
    , Chaochao Chen,
    Zhongxuan Han
    ,
    Qiyong Zhong
    ,
    Xiaolin Zheng
  20. Modality-Aware Diffusion Augmentation with Consistent Subspace Disentanglement for Session-based Recommendation
    SIGKDD 2025 ·
    Jiajie Su
    , Chaochao Chen,
    Weiming Liu
    ,
    Yuhang Wang
    ,
    Yihao Wang
    ,
    Zheqi Lv
    ,
    Xiaolin Zheng
    ,
    Jianwei Yin
  21. Personalized Federated Recommendation with Multi-Faceted User Representation and Global Consistent Prototype
    CIKM 2025 ·
    Jiaming Qian
    ,
    Xinting Liao
    ,
    Xiangmou Qu
    ,
    Zhihui Fu
    ,
    Xingyu Lou
    ,
    Changwang Zhang
    ,
    Pengyang Zhou
    ,
    Zijun Zhou
    ,
    Jun Wang
    , Chaochao Chen
  22. Plug and Play: Enabling Pluggable Attribute Unlearning in Recommender Systems
    WWW 2025 ·
    Xiaohua Feng
    ,
    Yuyuan Li
    ,
    Fengyuan Yu
    ,
    Li Zhang
    , Chaochao Chen,
    Xiaolin Zheng
  23. Sim4Rec: Data-Free Model Extraction Attack on Sequential Recommendation
    AAAI 2025 ·
    Yihao Wang
    ,
    Jiajie Su
    , Chaochao Chen,
    Meng Han
    ,
    Chi Zhang
    ,
    Jun Wang
  24. Tackling Federated Long-Tailed Learning via Synthetic Feature-Based Decoupled Training
    SIGKDD 2025 ·
    Huabin Zhu
    , Chaochao Chen,
    Xinting Liao
    ,
    Pengyang Zhou
    ,
    Xiaolin Zheng
  25. Training-free Periodic Interest Augmentation in Incremental Recommendation
    SIGIR 2025 ·
    Heyuan Huang
    ,
    Xingyu Lou
    ,
    Changwang Zhang
    , Chaochao Chen,
    Kuiyao Dong
    ,
    Feng Lu
    ,
    Han Lei
    ,
    Yihao Wang
    ,
    Wangchunshu Zhou
    ,
    Jun Wang
  26. UMU-Bench: Closing the Modality Gap in Multimodal Unlearning Evaluation
    NeurIPS 2025 ·
    Chengye Wang
    ,
    Yuyuan Li
    ,
    Xiaohua Feng
    , Chaochao Chen,
    Xiaolin Zheng
    ,
    Jianwei Yin
  27. CE-RCFR: Robust Counterfactual Regression for Consensus-Enabled Treatment Effect Estimation
    SIGKDD 2024 ·
    Fan Wang
    , Chaochao Chen,
    Weiming Liu
    ,
    Tianhao Fan
    ,
    Xinting Liao
    ,
    Yanchao Tan
    ,
    Lianyong Qi
    ,
    Xiaolin Zheng
  28. CURE4Rec: A Benchmark for Recommendation Unlearning with Deeper Influence
    NeurIPS 2024 · Chaochao Chen,
    Jiaming Zhang
    ,
    Yizhao Zhang
    ,
    Li Zhang
    ,
    Lingjuan Lyu
    ,
    Yuyuan Li
    ,
    Biao Gong
    ,
    Chenggang Yan
  29. DIIT: A Domain-Invariant Information Transfer Method for Industrial Cross-Domain Recommendation
    CIKM 2024 ·
    Heyuan Huang
    ,
    Xingyu Lou
    , Chaochao Chen,
    Pengxiang Cheng
    ,
    Yue Xin
    ,
    Chengwei He
    ,
    Xiang Liu
    ,
    Jun Wang
  30. FOOGD: Federated Collaboration for Both Out-of-distribution Generalization and Detection
    NeurIPS 2024 ·
    Xinting Liao
    ,
    Weiming Liu
    ,
    Pengyang Zhou
    ,
    Fengyuan Yu
    ,
    Jiahe Xu
    ,
    Jun Wang
    ,
    Wenjie Wang
    , Chaochao Chen,
    Xiaolin Zheng
  31. Federated Graph Learning for Cross-Domain Recommendation
    NeurIPS 2024 ·
    Ziqi Yang
    ,
    Zhaopeng Peng
    ,
    Zihui Wang
    ,
    Jianzhong Qi
    , Chaochao Chen,
    Weike Pan
    ,
    Chenglu Wen
    ,
    Cheng Wang
    ,
    Xiaoliang Fan
  32. Fine-grained Pluggable Gradient Ascent for Knowledge Unlearning in Language Models
    EMNLP 2024 ·
    Xiaohua Feng
    , Chaochao Chen,
    Yuyuan Li
    ,
    Zibin Lin
  33. Hypergraph Convolutional Network for User-Oriented Fairness in Recommender Systems
    SIGIR 2024 ·
    Zhongxuan Han
    , Chaochao Chen,
    Xiaolin Zheng
    ,
    Li Zhang
    ,
    Yuyuan Li
  34. Intra- and Inter-group Optimal Transport for User-Oriented Fairness in Recommender Systems
    AAAI 2024 ·
    Zhongxuan Han
    , Chaochao Chen,
    Xiaolin Zheng
    ,
    Meng Li
    ,
    Weiming Liu
    ,
    Binhui Yao
    ,
    Yuyuan Li
    ,
    Jianwei Yin
  35. Learning Accurate and Bidirectional Transformation via Dynamic Embedding Transportation for Cross-Domain Recommendation
    AAAI 2024 ·
    Weiming Liu
    , Chaochao Chen,
    Xinting Liao
    ,
    Mengling Hu
    ,
    Yanchao Tan
    ,
    Fan Wang
    ,
    Xiaolin Zheng
    ,
    Yew Soon Ong
  36. Logical Relation Modeling and Mining in Hyperbolic Space for Recommendation
    ICDE 2024 ·
    Yanchao Tan
    ,
    Hang Lv
    ,
    Zihao Zhou
    ,
    Wenzhong Guo
    ,
    Bo Xiong
    ,
    Weiming Liu
    , Chaochao Chen,
    Shiping Wang
    ,
    Carl Yang
  37. One for All: A Universal Generator for Concept Unlearnability via Multi-Modal Alignment
    ICML 2024 · Chaochao Chen,
    Jiaming Zhang
    ,
    Yuyuan Li
    ,
    Zhongxuan Han
  38. Protecting Split Learning by Potential Energy Loss
    IJCAI 2024 ·
    Fei Zheng
    , Chaochao Chen,
    Lingjuan Lyu
    ,
    Xinyi Fu
    ,
    Xing Fu
    ,
    Weiqiang Wang
    ,
    Xiaolin Zheng
    ,
    Jianwei Yin
  39. Reducing Item Discrepancy via Differentially Private Robust Embedding Alignment for Privacy-Preserving Cross Domain Recommendation
    ICML 2024 ·
    Weiming Liu
    ,
    Xiaolin Zheng
    , Chaochao Chen,
    Jiahe Xu
    ,
    Xinting Liao
    ,
    Fan Wang
    ,
    Yanchao Tan
    ,
    Yew-Soon Ong
  40. Rethinking the Representation in Federated Unsupervised Learning with Non-IID Data
    CVPR 2024 ·
    Xinting Liao
    ,
    Weiming Liu
    , Chaochao Chen,
    Pengyang Zhou
    ,
    Fengyuan Yu
    ,
    Huabin Zhu
    ,
    Binhui Yao
    ,
    Tao Wang
    ,
    Xiaolin Zheng
    ,
    Yanchao Tan
  41. Revisit Targeted Model Poisoning on Federated Recommendation: Optimize via Multi-objective Transport
    SIGIR 2024 ·
    Jiajie Su
    , Chaochao Chen,
    Weiming Liu
    ,
    Zibin Lin
    ,
    Shuheng Shen
    ,
    Weiqiang Wang
    ,
    Xiaolin Zheng
  42. UKnow: A Unified Knowledge Protocol with Multimodal Knowledge Graph Datasets for Reasoning and Vision-Language Pre-Training
    NeurIPS 2024 ·
    Biao Gong
    ,
    Shuai Tan
    ,
    Yutong Feng
    ,
    Xiaoying Xie
    ,
    Yuyuan Li
    , Chaochao Chen,
    Kecheng Zheng
    ,
    Yujun Shen
    ,
    Deli Zhao
  43. User Distribution Mapping Modelling with Collaborative Filtering for Cross Domain Recommendation
    WWW 2024 ·
    Weiming Liu
    , Chaochao Chen,
    Xinting Liao
    ,
    Mengling Hu
    ,
    Jiajie Su
    ,
    Yanchao Tan
    ,
    Fan Wang